Adding upstream version 1.0.1.upstream/1.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1648 insertions, 0 deletions

diff --git a/unittests/internaltests.py b/unittests/internaltests.py
new file mode 100644
index 0000000..79a3217
--- /dev/null
+++ b/unittests/internaltests.py
@@ -0,0 +1,1648 @@
+# Copyright 2016-2021 The Meson development team
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from configparser import ConfigParser
+from pathlib import Path
+from unittest import mock
+import contextlib
+import io
+import json
+import operator
+import os
+import pickle
+import stat
+import subprocess
+import tempfile
+import typing as T
+import unittest
+
+import mesonbuild.mlog
+import mesonbuild.depfile
+import mesonbuild.dependencies.base
+import mesonbuild.dependencies.factory
+import mesonbuild.envconfig
+import mesonbuild.environment
+import mesonbuild.modules.gnome
+from mesonbuild import coredata
+from mesonbuild.compilers.c import ClangCCompiler, GnuCCompiler
+from mesonbuild.compilers.cpp import VisualStudioCPPCompiler
+from mesonbuild.compilers.d import DmdDCompiler
+from mesonbuild.interpreterbase import typed_pos_args, InvalidArguments, ObjectHolder
+from mesonbuild.interpreterbase import typed_pos_args, InvalidArguments, typed_kwargs, ContainerTypeInfo, KwargInfo
+from mesonbuild.mesonlib import (
+    LibType, MachineChoice, PerMachine, Version, is_windows, is_osx,
+    is_cygwin, is_openbsd, search_version, MesonException, OptionKey,
+    OptionType
+)
+from mesonbuild.interpreter.type_checking import in_set_validator, NoneType
+from mesonbuild.dependencies import PkgConfigDependency
+from mesonbuild.programs import ExternalProgram
+import mesonbuild.modules.pkgconfig
+
+
+from run_tests import (
+    FakeCompilerOptions, get_fake_env, get_fake_options
+)
+
+from .helpers import *
+
+class InternalTests(unittest.TestCase):
+
+    def test_version_number(self):
+        self.assertEqual(search_version('foobar 1.2.3'), '1.2.3')
+        self.assertEqual(search_version('1.2.3'), '1.2.3')
+        self.assertEqual(search_version('foobar 2016.10.28 1.2.3'), '1.2.3')
+        self.assertEqual(search_version('2016.10.28 1.2.3'), '1.2.3')
+        self.assertEqual(search_version('foobar 2016.10.128'), '2016.10.128')
+        self.assertEqual(search_version('2016.10.128'), '2016.10.128')
+        self.assertEqual(search_version('2016.10'), '2016.10')
+        self.assertEqual(search_version('2016.10 1.2.3'), '1.2.3')
+        self.assertEqual(search_version('oops v1.2.3'), '1.2.3')
+        self.assertEqual(search_version('2016.oops 1.2.3'), '1.2.3')
+        self.assertEqual(search_version('2016.x'), 'unknown version')
+        self.assertEqual(search_version(r'something version is \033[32;2m1.2.0\033[0m.'), '1.2.0')
+
+        # Literal output of mvn
+        self.assertEqual(search_version(r'''\
+            \033[1mApache Maven 3.8.1 (05c21c65bdfed0f71a2f2ada8b84da59348c4c5d)\033[0m
+            Maven home: /nix/store/g84a9wnid2h1d3z2wfydy16dky73wh7i-apache-maven-3.8.1/maven
+            Java version: 11.0.10, vendor: Oracle Corporation, runtime: /nix/store/afsnl4ahmm9svvl7s1a0cj41vw4nkmz4-openjdk-11.0.10+9/lib/openjdk
+            Default locale: en_US, platform encoding: UTF-8
+            OS name: "linux", version: "5.12.17", arch: "amd64", family: "unix"'''),
+            '3.8.1')
+
+    def test_mode_symbolic_to_bits(self):
+        modefunc = mesonbuild.mesonlib.FileMode.perms_s_to_bits
+        self.assertEqual(modefunc('---------'), 0)
+        self.assertEqual(modefunc('r--------'), stat.S_IRUSR)
+        self.assertEqual(modefunc('---r-----'), stat.S_IRGRP)
+        self.assertEqual(modefunc('------r--'), stat.S_IROTH)
+        self.assertEqual(modefunc('-w-------'), stat.S_IWUSR)
+        self.assertEqual(modefunc('----w----'), stat.S_IWGRP)
+        self.assertEqual(modefunc('-------w-'), stat.S_IWOTH)
+        self.assertEqual(modefunc('--x------'), stat.S_IXUSR)
+        self.assertEqual(modefunc('-----x---'), stat.S_IXGRP)
+        self.assertEqual(modefunc('--------x'), stat.S_IXOTH)
+        self.assertEqual(modefunc('--S------'), stat.S_ISUID)
+        self.assertEqual(modefunc('-----S---'), stat.S_ISGID)
+        self.assertEqual(modefunc('--------T'), stat.S_ISVTX)
+        self.assertEqual(modefunc('--s------'), stat.S_ISUID | stat.S_IXUSR)
+        self.assertEqual(modefunc('-----s---'), stat.S_ISGID | stat.S_IXGRP)
+        self.assertEqual(modefunc('--------t'), stat.S_ISVTX | stat.S_IXOTH)
+        self.assertEqual(modefunc('rwx------'), stat.S_IRWXU)
+        self.assertEqual(modefunc('---rwx---'), stat.S_IRWXG)
+        self.assertEqual(modefunc('------rwx'), stat.S_IRWXO)
+        # We could keep listing combinations exhaustively but that seems
+        # tedious and pointless. Just test a few more.
+        self.assertEqual(modefunc('rwxr-xr-x'),
+                         stat.S_IRWXU |
+                         stat.S_IRGRP | stat.S_IXGRP |
+                         stat.S_IROTH | stat.S_IXOTH)
+        self.assertEqual(modefunc('rw-r--r--'),
+                         stat.S_IRUSR | stat.S_IWUSR |
+                         stat.S_IRGRP |
+                         stat.S_IROTH)
+        self.assertEqual(modefunc('rwsr-x---'),
+                         stat.S_IRWXU | stat.S_ISUID |
+                         stat.S_IRGRP | stat.S_IXGRP)
+
+    def test_compiler_args_class_none_flush(self):
+        cc = ClangCCompiler([], [], 'fake', MachineChoice.HOST, False, mock.Mock())
+        a = cc.compiler_args(['-I.'])
+        #first we are checking if the tree construction deduplicates the correct -I argument
+        a += ['-I..']
+        a += ['-I./tests/']
+        a += ['-I./tests2/']
+        #think this here as assertion, we cannot apply it, otherwise the CompilerArgs would already flush the changes:
+        # assertEqual(a, ['-I.', '-I./tests2/', '-I./tests/', '-I..', '-I.'])
+        a += ['-I.']
+        a += ['-I.', '-I./tests/']
+        self.assertEqual(a, ['-I.', '-I./tests/', '-I./tests2/', '-I..'])
+
+        #then we are checking that when CompilerArgs already have a build container list, that the deduplication is taking the correct one
+        a += ['-I.', '-I./tests2/']
+        self.assertEqual(a, ['-I.', '-I./tests2/', '-I./tests/', '-I..'])
+
+    def test_compiler_args_class_d(self):
+        d = DmdDCompiler([], 'fake', MachineChoice.HOST, 'info', 'arch')
+        # check include order is kept when deduplicating
+        a = d.compiler_args(['-Ifirst', '-Isecond', '-Ithird'])
+        a += ['-Ifirst']
+        self.assertEqual(a, ['-Ifirst', '-Isecond', '-Ithird'])
+
+    def test_compiler_args_class_clike(self):
+        cc = ClangCCompiler([], [], 'fake', MachineChoice.HOST, False, mock.Mock())
+        # Test that empty initialization works
+        a = cc.compiler_args()
+        self.assertEqual(a, [])
+        # Test that list initialization works
+        a = cc.compiler_args(['-I.', '-I..'])
+        self.assertEqual(a, ['-I.', '-I..'])
+        # Test that there is no de-dup on initialization
+        self.assertEqual(cc.compiler_args(['-I.', '-I.']), ['-I.', '-I.'])
+
+        ## Test that appending works
+        a.append('-I..')
+        self.assertEqual(a, ['-I..', '-I.'])
+        a.append('-O3')
+        self.assertEqual(a, ['-I..', '-I.', '-O3'])
+
+        ## Test that in-place addition works
+        a += ['-O2', '-O2']
+        self.assertEqual(a, ['-I..', '-I.', '-O3', '-O2', '-O2'])
+        # Test that removal works
+        a.remove('-O2')
+        self.assertEqual(a, ['-I..', '-I.', '-O3', '-O2'])
+        # Test that de-dup happens on addition
+        a += ['-Ifoo', '-Ifoo']
+        self.assertEqual(a, ['-Ifoo', '-I..', '-I.', '-O3', '-O2'])
+
+        # .extend() is just +=, so we don't test it
+
+        ## Test that addition works
+        # Test that adding a list with just one old arg works and yields the same array
+        a = a + ['-Ifoo']
+        self.assertEqual(a, ['-Ifoo', '-I..', '-I.', '-O3', '-O2'])
+        # Test that adding a list with one arg new and one old works
+        a = a + ['-Ifoo', '-Ibaz']
+        self.assertEqual(a, ['-Ifoo', '-Ibaz', '-I..', '-I.', '-O3', '-O2'])
+        # Test that adding args that must be prepended and appended works
+        a = a + ['-Ibar', '-Wall']
+        self.assertEqual(a, ['-Ibar', '-Ifoo', '-Ibaz', '-I..', '-I.', '-O3', '-O2', '-Wall'])
+
+        ## Test that reflected addition works
+        # Test that adding to a list with just one old arg works and yields the same array
+        a = ['-Ifoo'] + a
+        self.assertEqual(a, ['-Ibar', '-Ifoo', '-Ibaz', '-I..', '-I.', '-O3', '-O2', '-Wall'])
+        # Test that adding to a list with just one new arg that is not pre-pended works
+        a = ['-Werror'] + a
+        self.assertEqual(a, ['-Ibar', '-Ifoo', '-Ibaz', '-I..', '-I.', '-Werror', '-O3', '-O2', '-Wall'])
+        # Test that adding to a list with two new args preserves the order
+        a = ['-Ldir', '-Lbah'] + a
+        self.assertEqual(a, ['-Ibar', '-Ifoo', '-Ibaz', '-I..', '-I.', '-Ldir', '-Lbah', '-Werror', '-O3', '-O2', '-Wall'])
+        # Test that adding to a list with old args does nothing
+        a = ['-Ibar', '-Ibaz', '-Ifoo'] + a
+        self.assertEqual(a, ['-Ibar', '-Ifoo', '-Ibaz', '-I..', '-I.', '-Ldir', '-Lbah', '-Werror', '-O3', '-O2', '-Wall'])
+
+        ## Test that adding libraries works
+        l = cc.compiler_args(['-Lfoodir', '-lfoo'])
+        self.assertEqual(l, ['-Lfoodir', '-lfoo'])
+        # Adding a library and a libpath appends both correctly
+        l += ['-Lbardir', '-lbar']
+        self.assertEqual(l, ['-Lbardir', '-Lfoodir', '-lfoo', '-lbar'])
+        # Adding the same library again does nothing
+        l += ['-lbar']
+        self.assertEqual(l, ['-Lbardir', '-Lfoodir', '-lfoo', '-lbar'])
+
+        ## Test that 'direct' append and extend works
+        l = cc.compiler_args(['-Lfoodir', '-lfoo'])
+        self.assertEqual(l, ['-Lfoodir', '-lfoo'])
+        # Direct-adding a library and a libpath appends both correctly
+        l.extend_direct(['-Lbardir', '-lbar'])
+        self.assertEqual(l, ['-Lfoodir', '-lfoo', '-Lbardir', '-lbar'])
+        # Direct-adding the same library again still adds it
+        l.append_direct('-lbar')
+        self.assertEqual(l, ['-Lfoodir', '-lfoo', '-Lbardir', '-lbar', '-lbar'])
+        # Direct-adding with absolute path deduplicates
+        l.append_direct('/libbaz.a')
+        self.assertEqual(l, ['-Lfoodir', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a'])
+        # Adding libbaz again does nothing
+        l.append_direct('/libbaz.a')
+        self.assertEqual(l, ['-Lfoodir', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a'])
+
+
+    def test_compiler_args_class_visualstudio(self):
+        linker = mesonbuild.linkers.MSVCDynamicLinker(MachineChoice.HOST, [])
+        # Version just needs to be > 19.0.0
+        cc = VisualStudioCPPCompiler([], [], '20.00', MachineChoice.HOST, False, mock.Mock(), 'x64', linker=linker)
+
+        a = cc.compiler_args(cc.get_always_args())
+        self.assertEqual(a.to_native(copy=True), ['/nologo', '/showIncludes', '/utf-8', '/Zc:__cplusplus'])
+
+        # Ensure /source-charset: removes /utf-8
+        a.append('/source-charset:utf-8')
+        self.assertEqual(a.to_native(copy=True), ['/nologo', '/showIncludes', '/Zc:__cplusplus', '/source-charset:utf-8'])
+
+        # Ensure /execution-charset: removes /utf-8
+        a = cc.compiler_args(cc.get_always_args() + ['/execution-charset:utf-8'])
+        self.assertEqual(a.to_native(copy=True), ['/nologo', '/showIncludes', '/Zc:__cplusplus', '/execution-charset:utf-8'])
+
+        # Ensure /validate-charset- removes /utf-8
+        a = cc.compiler_args(cc.get_always_args() + ['/validate-charset-'])
+        self.assertEqual(a.to_native(copy=True), ['/nologo', '/showIncludes', '/Zc:__cplusplus', '/validate-charset-'])
+
+
+    def test_compiler_args_class_gnuld(self):
+        ## Test --start/end-group
+        linker = mesonbuild.linkers.GnuBFDDynamicLinker([], MachineChoice.HOST, '-Wl,', [])
+        gcc = GnuCCompiler([], [], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
+        ## Ensure that the fake compiler is never called by overriding the relevant function
+        gcc.get_default_include_dirs = lambda: ['/usr/include', '/usr/share/include', '/usr/local/include']
+        ## Test that 'direct' append and extend works
+        l = gcc.compiler_args(['-Lfoodir', '-lfoo'])
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Wl,--end-group'])
+        # Direct-adding a library and a libpath appends both correctly
+        l.extend_direct(['-Lbardir', '-lbar'])
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-Wl,--end-group'])
+        # Direct-adding the same library again still adds it
+        l.append_direct('-lbar')
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-lbar', '-Wl,--end-group'])
+        # Direct-adding with absolute path deduplicates
+        l.append_direct('/libbaz.a')
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a', '-Wl,--end-group'])
+        # Adding libbaz again does nothing
+        l.append_direct('/libbaz.a')
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a', '-Wl,--end-group'])
+        # Adding a non-library argument doesn't include it in the group
+        l += ['-Lfoo', '-Wl,--export-dynamic']
+        self.assertEqual(l.to_native(copy=True), ['-Lfoo', '-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a', '-Wl,--end-group', '-Wl,--export-dynamic'])
+        # -Wl,-lfoo is detected as a library and gets added to the group
+        l.append('-Wl,-ldl')
+        self.assertEqual(l.to_native(copy=True), ['-Lfoo', '-Lfoodir', '-Wl,--start-group', '-lfoo', '-Lbardir', '-lbar', '-lbar', '/libbaz.a', '-Wl,--export-dynamic', '-Wl,-ldl', '-Wl,--end-group'])
+
+    def test_compiler_args_remove_system(self):
+        ## Test --start/end-group
+        linker = mesonbuild.linkers.GnuBFDDynamicLinker([], MachineChoice.HOST, '-Wl,', [])
+        gcc = GnuCCompiler([], [], 'fake', False, MachineChoice.HOST, mock.Mock(), linker=linker)
+        ## Ensure that the fake compiler is never called by overriding the relevant function
+        gcc.get_default_include_dirs = lambda: ['/usr/include', '/usr/share/include', '/usr/local/include']
+        ## Test that 'direct' append and extend works
+        l = gcc.compiler_args(['-Lfoodir', '-lfoo'])
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Wl,--end-group'])
+        ## Test that to_native removes all system includes
+        l += ['-isystem/usr/include', '-isystem=/usr/share/include', '-DSOMETHING_IMPORTANT=1', '-isystem', '/usr/local/include']
+        self.assertEqual(l.to_native(copy=True), ['-Lfoodir', '-Wl,--start-group', '-lfoo', '-Wl,--end-group', '-DSOMETHING_IMPORTANT=1'])
+
+    def test_string_templates_substitution(self):
+        dictfunc = mesonbuild.mesonlib.get_filenames_templates_dict
+        substfunc = mesonbuild.mesonlib.substitute_values
+        ME = mesonbuild.mesonlib.MesonException
+
+        # Identity
+        self.assertEqual(dictfunc([], []), {})
+
+        # One input, no outputs
+        inputs = ['bar/foo.c.in']
+        outputs = []
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0],
+             '@PLAINNAME@': 'foo.c.in', '@BASENAME@': 'foo.c'}
+        # Check dictionary
+        self.assertEqual(ret, d)
+        # Check substitutions
+        cmd = ['some', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), cmd)
+        cmd = ['@INPUT@.out', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), [inputs[0] + '.out'] + cmd[1:])
+        cmd = ['@INPUT0@.out', '@PLAINNAME@.ok', 'strings']
+        self.assertEqual(substfunc(cmd, d),
+                         [inputs[0] + '.out'] + [d['@PLAINNAME@'] + '.ok'] + cmd[2:])
+        cmd = ['@INPUT@', '@BASENAME@.hah', 'strings']
+        self.assertEqual(substfunc(cmd, d),
+                         inputs + [d['@BASENAME@'] + '.hah'] + cmd[2:])
+        cmd = ['@OUTPUT@']
+        self.assertRaises(ME, substfunc, cmd, d)
+
+        # One input, one output
+        inputs = ['bar/foo.c.in']
+        outputs = ['out.c']
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0],
+             '@PLAINNAME@': 'foo.c.in', '@BASENAME@': 'foo.c',
+             '@OUTPUT@': outputs, '@OUTPUT0@': outputs[0], '@OUTDIR@': '.'}
+        # Check dictionary
+        self.assertEqual(ret, d)
+        # Check substitutions
+        cmd = ['some', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), cmd)
+        cmd = ['@INPUT@.out', '@OUTPUT@', 'strings']
+        self.assertEqual(substfunc(cmd, d),
+                         [inputs[0] + '.out'] + outputs + cmd[2:])
+        cmd = ['@INPUT0@.out', '@PLAINNAME@.ok', '@OUTPUT0@']
+        self.assertEqual(substfunc(cmd, d),
+                         [inputs[0] + '.out', d['@PLAINNAME@'] + '.ok'] + outputs)
+        cmd = ['@INPUT@', '@BASENAME@.hah', 'strings']
+        self.assertEqual(substfunc(cmd, d),
+                         inputs + [d['@BASENAME@'] + '.hah'] + cmd[2:])
+
+        # One input, one output with a subdir
+        outputs = ['dir/out.c']
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0],
+             '@PLAINNAME@': 'foo.c.in', '@BASENAME@': 'foo.c',
+             '@OUTPUT@': outputs, '@OUTPUT0@': outputs[0], '@OUTDIR@': 'dir'}
+        # Check dictionary
+        self.assertEqual(ret, d)
+
+        # Two inputs, no outputs
+        inputs = ['bar/foo.c.in', 'baz/foo.c.in']
+        outputs = []
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0], '@INPUT1@': inputs[1]}
+        # Check dictionary
+        self.assertEqual(ret, d)
+        # Check substitutions
+        cmd = ['some', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), cmd)
+        cmd = ['@INPUT@', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), inputs + cmd[1:])
+        cmd = ['@INPUT0@.out', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), [inputs[0] + '.out'] + cmd[1:])
+        cmd = ['@INPUT0@.out', '@INPUT1@.ok', 'strings']
+        self.assertEqual(substfunc(cmd, d), [inputs[0] + '.out', inputs[1] + '.ok'] + cmd[2:])
+        cmd = ['@INPUT0@', '@INPUT1@', 'strings']
+        self.assertEqual(substfunc(cmd, d), inputs + cmd[2:])
+        # Many inputs, can't use @INPUT@ like this
+        cmd = ['@INPUT@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Not enough inputs
+        cmd = ['@INPUT2@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Too many inputs
+        cmd = ['@PLAINNAME@']
+        self.assertRaises(ME, substfunc, cmd, d)
+        cmd = ['@BASENAME@']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # No outputs
+        cmd = ['@OUTPUT@']
+        self.assertRaises(ME, substfunc, cmd, d)
+        cmd = ['@OUTPUT0@']
+        self.assertRaises(ME, substfunc, cmd, d)
+        cmd = ['@OUTDIR@']
+        self.assertRaises(ME, substfunc, cmd, d)
+
+        # Two inputs, one output
+        outputs = ['dir/out.c']
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0], '@INPUT1@': inputs[1],
+             '@OUTPUT@': outputs, '@OUTPUT0@': outputs[0], '@OUTDIR@': 'dir'}
+        # Check dictionary
+        self.assertEqual(ret, d)
+        # Check substitutions
+        cmd = ['some', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), cmd)
+        cmd = ['@OUTPUT@', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), outputs + cmd[1:])
+        cmd = ['@OUTPUT@.out', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), [outputs[0] + '.out'] + cmd[1:])
+        cmd = ['@OUTPUT0@.out', '@INPUT1@.ok', 'strings']
+        self.assertEqual(substfunc(cmd, d), [outputs[0] + '.out', inputs[1] + '.ok'] + cmd[2:])
+        # Many inputs, can't use @INPUT@ like this
+        cmd = ['@INPUT@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Not enough inputs
+        cmd = ['@INPUT2@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Not enough outputs
+        cmd = ['@OUTPUT2@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+
+        # Two inputs, two outputs
+        outputs = ['dir/out.c', 'dir/out2.c']
+        ret = dictfunc(inputs, outputs)
+        d = {'@INPUT@': inputs, '@INPUT0@': inputs[0], '@INPUT1@': inputs[1],
+             '@OUTPUT@': outputs, '@OUTPUT0@': outputs[0], '@OUTPUT1@': outputs[1],
+             '@OUTDIR@': 'dir'}
+        # Check dictionary
+        self.assertEqual(ret, d)
+        # Check substitutions
+        cmd = ['some', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), cmd)
+        cmd = ['@OUTPUT@', 'ordinary', 'strings']
+        self.assertEqual(substfunc(cmd, d), outputs + cmd[1:])
+        cmd = ['@OUTPUT0@', '@OUTPUT1@', 'strings']
+        self.assertEqual(substfunc(cmd, d), outputs + cmd[2:])
+        cmd = ['@OUTPUT0@.out', '@INPUT1@.ok', '@OUTDIR@']
+        self.assertEqual(substfunc(cmd, d), [outputs[0] + '.out', inputs[1] + '.ok', 'dir'])
+        # Many inputs, can't use @INPUT@ like this
+        cmd = ['@INPUT@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Not enough inputs
+        cmd = ['@INPUT2@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Not enough outputs
+        cmd = ['@OUTPUT2@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+        # Many outputs, can't use @OUTPUT@ like this
+        cmd = ['@OUTPUT@.out', 'ordinary', 'strings']
+        self.assertRaises(ME, substfunc, cmd, d)
+
+    def test_needs_exe_wrapper_override(self):
+        config = ConfigParser()
+        config['binaries'] = {
+            'c': '\'/usr/bin/gcc\'',
+        }
+        config['host_machine'] = {
+            'system': '\'linux\'',
+            'cpu_family': '\'arm\'',
+            'cpu': '\'armv7\'',
+            'endian': '\'little\'',
+        }
+        # Can not be used as context manager because we need to
+        # open it a second time and this is not possible on
+        # Windows.
+        configfile = tempfile.NamedTemporaryFile(mode='w+', delete=False)
+        configfilename = configfile.name
+        config.write(configfile)
+        configfile.flush()
+        configfile.close()
+        opts = get_fake_options()
+        opts.cross_file = (configfilename,)
+        env = get_fake_env(opts=opts)
+        detected_value = env.need_exe_wrapper()
+        os.unlink(configfilename)
+
+        desired_value = not detected_value
+        config['properties'] = {
+            'needs_exe_wrapper': 'true' if desired_value else 'false'
+        }
+
+        configfile = tempfile.NamedTemporaryFile(mode='w+', delete=False)
+        configfilename = configfile.name
+        config.write(configfile)
+        configfile.close()
+        opts = get_fake_options()
+        opts.cross_file = (configfilename,)
+        env = get_fake_env(opts=opts)
+        forced_value = env.need_exe_wrapper()
+        os.unlink(configfilename)
+
+        self.assertEqual(forced_value, desired_value)
+
+    def test_listify(self):
+        listify = mesonbuild.mesonlib.listify
+        # Test sanity
+        self.assertEqual([1], listify(1))
+        self.assertEqual([], listify([]))
+        self.assertEqual([1], listify([1]))
+        # Test flattening
+        self.assertEqual([1, 2, 3], listify([1, [2, 3]]))
+        self.assertEqual([1, 2, 3], listify([1, [2, [3]]]))
+        self.assertEqual([1, [2, [3]]], listify([1, [2, [3]]], flatten=False))
+        # Test flattening and unholdering
+        class TestHeldObj(mesonbuild.mesonlib.HoldableObject):
+            def __init__(self, val: int) -> None:
+                self._val = val
+        class MockInterpreter:
+            def __init__(self) -> None:
+                self.subproject = ''
+                self.environment = None
+        heldObj1 = TestHeldObj(1)
+        holder1 = ObjectHolder(heldObj1, MockInterpreter())
+        self.assertEqual([holder1], listify(holder1))
+        self.assertEqual([holder1], listify([holder1]))
+        self.assertEqual([holder1, 2], listify([holder1, 2]))
+        self.assertEqual([holder1, 2, 3], listify([holder1, 2, [3]]))
+
+    def test_extract_as_list(self):
+        extract = mesonbuild.mesonlib.extract_as_list
+        # Test sanity
+        kwargs = {'sources': [1, 2, 3]}
+        self.assertEqual([1, 2, 3], extract(kwargs, 'sources'))
+        self.assertEqual(kwargs, {'sources': [1, 2, 3]})
+        self.assertEqual([1, 2, 3], extract(kwargs, 'sources', pop=True))
+        self.assertEqual(kwargs, {})
+
+        class TestHeldObj(mesonbuild.mesonlib.HoldableObject):
+            pass
+        class MockInterpreter:
+            def __init__(self) -> None:
+                self.subproject = ''
+                self.environment = None
+        heldObj = TestHeldObj()
+
+        # Test unholding
+        holder3 = ObjectHolder(heldObj, MockInterpreter())
+        kwargs = {'sources': [1, 2, holder3]}
+        self.assertEqual(kwargs, {'sources': [1, 2, holder3]})
+
+        # flatten nested lists
+        kwargs = {'sources': [1, [2, [3]]]}
+        self.assertEqual([1, 2, 3], extract(kwargs, 'sources'))
+
+    def _test_all_naming(self, cc, env, patterns, platform):
+        shr = patterns[platform]['shared']
+        stc = patterns[platform]['static']
+        shrstc = shr + tuple(x for x in stc if x not in shr)
+        stcshr = stc + tuple(x for x in shr if x not in stc)
+        p = cc.get_library_naming(env, LibType.SHARED)
+        self.assertEqual(p, shr)
+        p = cc.get_library_naming(env, LibType.STATIC)
+        self.assertEqual(p, stc)
+        p = cc.get_library_naming(env, LibType.PREFER_STATIC)
+        self.assertEqual(p, stcshr)
+        p = cc.get_library_naming(env, LibType.PREFER_SHARED)
+        self.assertEqual(p, shrstc)
+        # Test find library by mocking up openbsd
+        if platform != 'openbsd':
+            return
+        with tempfile.TemporaryDirectory() as tmpdir:
+            for i in ['libfoo.so.6.0', 'libfoo.so.5.0', 'libfoo.so.54.0', 'libfoo.so.66a.0b', 'libfoo.so.70.0.so.1']:
+                libpath = Path(tmpdir) / i
+                libpath.write_text('', encoding='utf-8')
+            found = cc._find_library_real('foo', env, [tmpdir], '', LibType.PREFER_SHARED)
+            self.assertEqual(os.path.basename(found[0]), 'libfoo.so.54.0')
+
+    def test_find_library_patterns(self):
+        '''
+        Unit test for the library search patterns used by find_library()
+        '''
+        unix_static = ('lib{}.a', '{}.a')
+        msvc_static = ('lib{}.a', 'lib{}.lib', '{}.a', '{}.lib')
+        # This is the priority list of pattern matching for library searching
+        patterns = {'openbsd': {'shared': ('lib{}.so', '{}.so', 'lib{}.so.[0-9]*.[0-9]*', '{}.so.[0-9]*.[0-9]*'),
+                                'static': unix_static},
+                    'linux': {'shared': ('lib{}.so', '{}.so'),
+                              'static': unix_static},
+                    'darwin': {'shared': ('lib{}.dylib', 'lib{}.so', '{}.dylib', '{}.so'),
+                               'static': unix_static},
+                    'cygwin': {'shared': ('cyg{}.dll', 'cyg{}.dll.a', 'lib{}.dll',
+                                          'lib{}.dll.a', '{}.dll', '{}.dll.a'),
+                               'static': ('cyg{}.a',) + unix_static},
+                    'windows-msvc': {'shared': ('lib{}.lib', '{}.lib'),
+                                     'static': msvc_static},
+                    'windows-mingw': {'shared': ('lib{}.dll.a', 'lib{}.lib', 'lib{}.dll',
+                                                 '{}.dll.a', '{}.lib', '{}.dll'),
+                                      'static': msvc_static}}
+        env = get_fake_env()
+        cc = detect_c_compiler(env, MachineChoice.HOST)
+        if is_osx():
+            self._test_all_naming(cc, env, patterns, 'darwin')
+        elif is_cygwin():
+            self._test_all_naming(cc, env, patterns, 'cygwin')
+        elif is_windows():
+            if cc.get_argument_syntax() == 'msvc':
+                self._test_all_naming(cc, env, patterns, 'windows-msvc')
+            else:
+                self._test_all_naming(cc, env, patterns, 'windows-mingw')
+        elif is_openbsd():
+            self._test_all_naming(cc, env, patterns, 'openbsd')
+        else:
+            self._test_all_naming(cc, env, patterns, 'linux')
+            env.machines.host.system = 'openbsd'
+            self._test_all_naming(cc, env, patterns, 'openbsd')
+            env.machines.host.system = 'darwin'
+            self._test_all_naming(cc, env, patterns, 'darwin')
+            env.machines.host.system = 'cygwin'
+            self._test_all_naming(cc, env, patterns, 'cygwin')
+            env.machines.host.system = 'windows'
+            self._test_all_naming(cc, env, patterns, 'windows-mingw')
+
+    @skipIfNoPkgconfig
+    def test_pkgconfig_parse_libs(self):
+        '''
+        Unit test for parsing of pkg-config output to search for libraries
+
+        https://github.com/mesonbuild/meson/issues/3951
+        '''
+        def create_static_lib(name):
+            if not is_osx():
+                name.open('w', encoding='utf-8').close()
+                return
+            src = name.with_suffix('.c')
+            out = name.with_suffix('.o')
+            with src.open('w', encoding='utf-8') as f:
+                f.write('int meson_foobar (void) { return 0; }')
+            subprocess.check_call(['clang', '-c', str(src), '-o', str(out)])
+            subprocess.check_call(['ar', 'csr', str(name), str(out)])
+
+        with tempfile.TemporaryDirectory() as tmpdir:
+            pkgbin = ExternalProgram('pkg-config', command=['pkg-config'], silent=True)
+            env = get_fake_env()
+            compiler = detect_c_compiler(env, MachineChoice.HOST)
+            env.coredata.compilers.host = {'c': compiler}
+            env.coredata.options[OptionKey('link_args', lang='c')] = FakeCompilerOptions()
+            p1 = Path(tmpdir) / '1'
+            p2 = Path(tmpdir) / '2'
+            p1.mkdir()
+            p2.mkdir()
+            # libfoo.a is in one prefix
+            create_static_lib(p1 / 'libfoo.a')
+            # libbar.a is in both prefixes
+            create_static_lib(p1 / 'libbar.a')
+            create_static_lib(p2 / 'libbar.a')
+            # Ensure that we never statically link to these
+            create_static_lib(p1 / 'libpthread.a')
+            create_static_lib(p1 / 'libm.a')
+            create_static_lib(p1 / 'libc.a')
+            create_static_lib(p1 / 'libdl.a')
+            create_static_lib(p1 / 'librt.a')
+
+            def fake_call_pkgbin(self, args, env=None):
+                if '--libs' not in args:
+                    return 0, '', ''
+                if args[-1] == 'foo':
+                    return 0, f'-L{p2.as_posix()} -lfoo -L{p1.as_posix()} -lbar', ''
+                if args[-1] == 'bar':
+                    return 0, f'-L{p2.as_posix()} -lbar', ''
+                if args[-1] == 'internal':
+                    return 0, f'-L{p1.as_posix()} -lpthread -lm -lc -lrt -ldl', ''
+
+            old_call = PkgConfigDependency._call_pkgbin
+            old_check = PkgConfigDependency.check_pkgconfig
+            PkgConfigDependency._call_pkgbin = fake_call_pkgbin
+            PkgConfigDependency.check_pkgconfig = lambda x, _: pkgbin
+            # Test begins
+            try:
+                kwargs = {'required': True, 'silent': True}
+                foo_dep = PkgConfigDependency('foo', env, kwargs)
+                self.assertEqual(foo_dep.get_link_args(),
+                                 [(p1 / 'libfoo.a').as_posix(), (p2 / 'libbar.a').as_posix()])
+                bar_dep = PkgConfigDependency('bar', env, kwargs)
+                self.assertEqual(bar_dep.get_link_args(), [(p2 / 'libbar.a').as_posix()])
+                internal_dep = PkgConfigDependency('internal', env, kwargs)
+                if compiler.get_argument_syntax() == 'msvc':
+                    self.assertEqual(internal_dep.get_link_args(), [])
+                else:
+                    link_args = internal_dep.get_link_args()
+                    for link_arg in link_args:
+                        for lib in ('pthread', 'm', 'c', 'dl', 'rt'):
+                            self.assertNotIn(f'lib{lib}.a', link_arg, msg=link_args)
+            finally:
+                # Test ends
+                PkgConfigDependency._call_pkgbin = old_call
+                PkgConfigDependency.check_pkgconfig = old_check
+                # Reset dependency class to ensure that in-process configure doesn't mess up
+                PkgConfigDependency.pkgbin_cache = {}
+                PkgConfigDependency.class_pkgbin = PerMachine(None, None)
+
+    def test_version_compare(self):
+        comparefunc = mesonbuild.mesonlib.version_compare_many
+        for (a, b, result) in [
+                ('0.99.beta19', '>= 0.99.beta14', True),
+        ]:
+            self.assertEqual(comparefunc(a, b)[0], result)
+
+        for (a, b, op) in [
+                # examples from https://fedoraproject.org/wiki/Archive:Tools/RPM/VersionComparison
+                ("1.0010", "1.9", operator.gt),
+                ("1.05", "1.5", operator.eq),
+                ("1.0", "1", operator.gt),
+                ("2.50", "2.5", operator.gt),
+                ("fc4", "fc.4", operator.eq),
+                ("FC5", "fc4", operator.lt),
+                ("2a", "2.0", operator.lt),
+                ("1.0", "1.fc4", operator.gt),
+                ("3.0.0_fc", "3.0.0.fc", operator.eq),
+                # from RPM tests
+                ("1.0", "1.0", operator.eq),
+                ("1.0", "2.0", operator.lt),
+                ("2.0", "1.0", operator.gt),
+                ("2.0.1", "2.0.1", operator.eq),
+                ("2.0", "2.0.1", operator.lt),
+                ("2.0.1", "2.0", operator.gt),
+                ("2.0.1a", "2.0.1a", operator.eq),
+                ("2.0.1a", "2.0.1", operator.gt),
+                ("2.0.1", "2.0.1a", operator.lt),
+                ("5.5p1", "5.5p1", operator.eq),
+                ("5.5p1", "5.5p2", operator.lt),
+                ("5.5p2", "5.5p1", operator.gt),
+                ("5.5p10", "5.5p10", operator.eq),
+                ("5.5p1", "5.5p10", operator.lt),
+                ("5.5p10", "5.5p1", operator.gt),
+                ("10xyz", "10.1xyz", operator.lt),
+                ("10.1xyz", "10xyz", operator.gt),
+                ("xyz10", "xyz10", operator.eq),
+                ("xyz10", "xyz10.1", operator.lt),
+                ("xyz10.1", "xyz10", operator.gt),
+                ("xyz.4", "xyz.4", operator.eq),
+                ("xyz.4", "8", operator.lt),
+                ("8", "xyz.4", operator.gt),
+                ("xyz.4", "2", operator.lt),
+                ("2", "xyz.4", operator.gt),
+                ("5.5p2", "5.6p1", operator.lt),
+                ("5.6p1", "5.5p2", operator.gt),
+                ("5.6p1", "6.5p1", operator.lt),
+                ("6.5p1", "5.6p1", operator.gt),
+                ("6.0.rc1", "6.0", operator.gt),
+                ("6.0", "6.0.rc1", operator.lt),
+                ("10b2", "10a1", operator.gt),
+                ("10a2", "10b2", operator.lt),
+                ("1.0aa", "1.0aa", operator.eq),
+                ("1.0a", "1.0aa", operator.lt),
+                ("1.0aa", "1.0a", operator.gt),
+                ("10.0001", "10.0001", operator.eq),
+                ("10.0001", "10.1", operator.eq),
+                ("10.1", "10.0001", operator.eq),
+                ("10.0001", "10.0039", operator.lt),
+                ("10.0039", "10.0001", operator.gt),
+                ("4.999.9", "5.0", operator.lt),
+                ("5.0", "4.999.9", operator.gt),
+                ("20101121", "20101121", operator.eq),
+                ("20101121", "20101122", operator.lt),
+                ("20101122", "20101121", operator.gt),
+                ("2_0", "2_0", operator.eq),
+                ("2.0", "2_0", operator.eq),
+                ("2_0", "2.0", operator.eq),
+                ("a", "a", operator.eq),
+                ("a+", "a+", operator.eq),
+                ("a+", "a_", operator.eq),
+                ("a_", "a+", operator.eq),
+                ("+a", "+a", operator.eq),
+                ("+a", "_a", operator.eq),
+                ("_a", "+a", operator.eq),
+                ("+_", "+_", operator.eq),
+                ("_+", "+_", operator.eq),
+                ("_+", "_+", operator.eq),
+                ("+", "_", operator.eq),
+                ("_", "+", operator.eq),
+                # other tests
+                ('0.99.beta19', '0.99.beta14', operator.gt),
+                ("1.0.0", "2.0.0", operator.lt),
+                (".0.0", "2.0.0", operator.lt),
+                ("alpha", "beta", operator.lt),
+                ("1.0", "1.0.0", operator.lt),
+                ("2.456", "2.1000", operator.lt),
+                ("2.1000", "3.111", operator.lt),
+                ("2.001", "2.1", operator.eq),
+                ("2.34", "2.34", operator.eq),
+                ("6.1.2", "6.3.8", operator.lt),
+                ("1.7.3.0", "2.0.0", operator.lt),
+                ("2.24.51", "2.25", operator.lt),
+                ("2.1.5+20120813+gitdcbe778", "2.1.5", operator.gt),
+                ("3.4.1", "3.4b1", operator.gt),
+                ("041206", "200090325", operator.lt),
+                ("0.6.2+git20130413", "0.6.2", operator.gt),
+                ("2.6.0+bzr6602", "2.6.0", operator.gt),
+                ("2.6.0", "2.6b2", operator.gt),
+                ("2.6.0+bzr6602", "2.6b2x", operator.gt),
+                ("0.6.7+20150214+git3a710f9", "0.6.7", operator.gt),
+                ("15.8b", "15.8.0.1", operator.lt),
+                ("1.2rc1", "1.2.0", operator.lt),
+        ]:
+            ver_a = Version(a)
+            ver_b = Version(b)
+            if op is operator.eq:
+                for o, name in [(op, 'eq'), (operator.ge, 'ge'), (operator.le, 'le')]:
+                    self.assertTrue(o(ver_a, ver_b), f'{ver_a} {name} {ver_b}')
+            if op is operator.lt:
+                for o, name in [(op, 'lt'), (operator.le, 'le'), (operator.ne, 'ne')]:
+                    self.assertTrue(o(ver_a, ver_b), f'{ver_a} {name} {ver_b}')
+                for o, name in [(operator.gt, 'gt'), (operator.ge, 'ge'), (operator.eq, 'eq')]:
+                    self.assertFalse(o(ver_a, ver_b), f'{ver_a} {name} {ver_b}')
+            if op is operator.gt:
+                for o, name in [(op, 'gt'), (operator.ge, 'ge'), (operator.ne, 'ne')]:
+                    self.assertTrue(o(ver_a, ver_b), f'{ver_a} {name} {ver_b}')
+                for o, name in [(operator.lt, 'lt'), (operator.le, 'le'), (operator.eq, 'eq')]:
+                    self.assertFalse(o(ver_a, ver_b), f'{ver_a} {name} {ver_b}')
+
+    def test_msvc_toolset_version(self):
+        '''
+        Ensure that the toolset version returns the correct value for this MSVC
+        '''
+        env = get_fake_env()
+        cc = detect_c_compiler(env, MachineChoice.HOST)
+        if cc.get_argument_syntax() != 'msvc':
+            raise unittest.SkipTest('Test only applies to MSVC-like compilers')
+        toolset_ver = cc.get_toolset_version()
+        self.assertIsNotNone(toolset_ver)
+        # Visual Studio 2015 and older versions do not define VCToolsVersion
+        # TODO: ICL doesn't set this in the VSC2015 profile either
+        if cc.id == 'msvc' and int(''.join(cc.version.split('.')[0:2])) < 1910:
+            return
+        if 'VCToolsVersion' in os.environ:
+            vctools_ver = os.environ['VCToolsVersion']
+        else:
+            self.assertIn('VCINSTALLDIR', os.environ)
+            # See https://devblogs.microsoft.com/cppblog/finding-the-visual-c-compiler-tools-in-visual-studio-2017/
+            vctools_ver = (Path(os.environ['VCINSTALLDIR']) / 'Auxiliary' / 'Build' / 'Microsoft.VCToolsVersion.default.txt').read_text(encoding='utf-8')
+        self.assertTrue(vctools_ver.startswith(toolset_ver),
+                        msg=f'{vctools_ver!r} does not start with {toolset_ver!r}')
+
+    def test_split_args(self):
+        split_args = mesonbuild.mesonlib.split_args
+        join_args = mesonbuild.mesonlib.join_args
+        if is_windows():
+            test_data = [
+                # examples from https://docs.microsoft.com/en-us/cpp/c-language/parsing-c-command-line-arguments
+                (r'"a b c" d e', ['a b c', 'd', 'e'], True),
+                (r'"ab\"c" "\\" d', ['ab"c', '\\', 'd'], False),
+                (r'a\\\b d"e f"g h', [r'a\\\b', 'de fg', 'h'], False),
+                (r'a\\\"b c d', [r'a\"b', 'c', 'd'], False),
+                (r'a\\\\"b c" d e', [r'a\\b c', 'd', 'e'], False),
+                # other basics
+                (r'""', [''], True),
+                (r'a b c d "" e', ['a', 'b', 'c', 'd', '', 'e'], True),
+                (r"'a b c' d e", ["'a", 'b', "c'", 'd', 'e'], True),
+                (r"'a&b&c' d e", ["'a&b&c'", 'd', 'e'], True),
+                (r"a & b & c d e", ['a', '&', 'b', '&', 'c', 'd', 'e'], True),
+                (r"'a & b & c d e'", ["'a", '&', 'b', '&', 'c', 'd', "e'"], True),
+                ('a  b\nc\rd \n\re', ['a', 'b', 'c', 'd', 'e'], False),
+                # more illustrative tests
+                (r'cl test.cpp /O1 /Fe:test.exe', ['cl', 'test.cpp', '/O1', '/Fe:test.exe'], True),
+                (r'cl "test.cpp /O1 /Fe:test.exe"', ['cl', 'test.cpp /O1 /Fe:test.exe'], True),
+                (r'cl /DNAME=\"Bob\" test.cpp', ['cl', '/DNAME="Bob"', 'test.cpp'], False),
+                (r'cl "/DNAME=\"Bob\"" test.cpp', ['cl', '/DNAME="Bob"', 'test.cpp'], True),
+                (r'cl /DNAME=\"Bob, Alice\" test.cpp', ['cl', '/DNAME="Bob,', 'Alice"', 'test.cpp'], False),
+                (r'cl "/DNAME=\"Bob, Alice\"" test.cpp', ['cl', '/DNAME="Bob, Alice"', 'test.cpp'], True),
+                (r'cl C:\path\with\backslashes.cpp', ['cl', r'C:\path\with\backslashes.cpp'], True),
+                (r'cl C:\\path\\with\\double\\backslashes.cpp', ['cl', r'C:\\path\\with\\double\\backslashes.cpp'], True),
+                (r'cl "C:\\path\\with\\double\\backslashes.cpp"', ['cl', r'C:\\path\\with\\double\\backslashes.cpp'], False),
+                (r'cl C:\path with spaces\test.cpp', ['cl', r'C:\path', 'with', r'spaces\test.cpp'], False),
+                (r'cl "C:\path with spaces\test.cpp"', ['cl', r'C:\path with spaces\test.cpp'], True),
+                (r'cl /DPATH="C:\path\with\backslashes test.cpp', ['cl', r'/DPATH=C:\path\with\backslashes test.cpp'], False),
+                (r'cl /DPATH=\"C:\\ends\\with\\backslashes\\\" test.cpp', ['cl', r'/DPATH="C:\\ends\\with\\backslashes\"', 'test.cpp'], False),
+                (r'cl /DPATH="C:\\ends\\with\\backslashes\\" test.cpp', ['cl', '/DPATH=C:\\\\ends\\\\with\\\\backslashes\\', 'test.cpp'], False),
+                (r'cl "/DNAME=\"C:\\ends\\with\\backslashes\\\"" test.cpp', ['cl', r'/DNAME="C:\\ends\\with\\backslashes\"', 'test.cpp'], True),
+                (r'cl "/DNAME=\"C:\\ends\\with\\backslashes\\\\"" test.cpp', ['cl', r'/DNAME="C:\\ends\\with\\backslashes\\ test.cpp'], False),
+                (r'cl "/DNAME=\"C:\\ends\\with\\backslashes\\\\\"" test.cpp', ['cl', r'/DNAME="C:\\ends\\with\\backslashes\\"', 'test.cpp'], True),
+            ]
+        else:
+            test_data = [
+                (r"'a b c' d e", ['a b c', 'd', 'e'], True),
+                (r"a/b/c d e", ['a/b/c', 'd', 'e'], True),
+                (r"a\b\c d e", [r'abc', 'd', 'e'], False),
+                (r"a\\b\\c d e", [r'a\b\c', 'd', 'e'], False),
+                (r'"a b c" d e', ['a b c', 'd', 'e'], False),
+                (r'"a\\b\\c\\" d e', ['a\\b\\c\\', 'd', 'e'], False),
+                (r"'a\b\c\' d e", ['a\\b\\c\\', 'd', 'e'], True),
+                (r"'a&b&c' d e", ['a&b&c', 'd', 'e'], True),
+                (r"a & b & c d e", ['a', '&', 'b', '&', 'c', 'd', 'e'], False),
+                (r"'a & b & c d e'", ['a & b & c d e'], True),
+                (r"abd'e f'g h", [r'abde fg', 'h'], False),
+                ('a  b\nc\rd \n\re', ['a', 'b', 'c', 'd', 'e'], False),
+
+                ('g++ -DNAME="Bob" test.cpp', ['g++', '-DNAME=Bob', 'test.cpp'], False),
+                ("g++ '-DNAME=\"Bob\"' test.cpp", ['g++', '-DNAME="Bob"', 'test.cpp'], True),
+                ('g++ -DNAME="Bob, Alice" test.cpp', ['g++', '-DNAME=Bob, Alice', 'test.cpp'], False),
+                ("g++ '-DNAME=\"Bob, Alice\"' test.cpp", ['g++', '-DNAME="Bob, Alice"', 'test.cpp'], True),
+            ]
+
+        for (cmd, expected, roundtrip) in test_data:
+            self.assertEqual(split_args(cmd), expected)
+            if roundtrip:
+                self.assertEqual(join_args(expected), cmd)
+
+    def test_quote_arg(self):
+        split_args = mesonbuild.mesonlib.split_args
+        quote_arg = mesonbuild.mesonlib.quote_arg
+        if is_windows():
+            test_data = [
+                ('', '""'),
+                ('arg1', 'arg1'),
+                ('/option1', '/option1'),
+                ('/Ovalue', '/Ovalue'),
+                ('/OBob&Alice', '/OBob&Alice'),
+                ('/Ovalue with spaces', r'"/Ovalue with spaces"'),
+                (r'/O"value with spaces"', r'"/O\"value with spaces\""'),
+                (r'/OC:\path with spaces\test.exe', r'"/OC:\path with spaces\test.exe"'),
+                ('/LIBPATH:C:\\path with spaces\\ends\\with\\backslashes\\', r'"/LIBPATH:C:\path with spaces\ends\with\backslashes\\"'),
+                ('/LIBPATH:"C:\\path with spaces\\ends\\with\\backslashes\\\\"', r'"/LIBPATH:\"C:\path with spaces\ends\with\backslashes\\\\\""'),
+                (r'/DMSG="Alice said: \"Let\'s go\""', r'"/DMSG=\"Alice said: \\\"Let\'s go\\\"\""'),
+            ]
+        else:
+            test_data = [
+                ('arg1', 'arg1'),
+                ('--option1', '--option1'),
+                ('-O=value', '-O=value'),
+                ('-O=Bob&Alice', "'-O=Bob&Alice'"),
+                ('-O=value with spaces', "'-O=value with spaces'"),
+                ('-O="value with spaces"', '\'-O=\"value with spaces\"\''),
+                ('-O=/path with spaces/test', '\'-O=/path with spaces/test\''),
+                ('-DMSG="Alice said: \\"Let\'s go\\""', "'-DMSG=\"Alice said: \\\"Let'\"'\"'s go\\\"\"'"),
+            ]
+
+        for (arg, expected) in test_data:
+            self.assertEqual(quote_arg(arg), expected)
+            self.assertEqual(split_args(expected)[0], arg)
+
+    def test_depfile(self):
+        for (f, target, expdeps) in [
+                # empty, unknown target
+                ([''], 'unknown', set()),
+                # simple target & deps
+                (['meson/foo.o  : foo.c   foo.h'], 'meson/foo.o', set({'foo.c', 'foo.h'})),
+                (['meson/foo.o: foo.c foo.h'], 'foo.c', set()),
+                # get all deps
+                (['meson/foo.o: foo.c foo.h',
+                  'foo.c: gen.py'], 'meson/foo.o', set({'foo.c', 'foo.h', 'gen.py'})),
+                (['meson/foo.o: foo.c foo.h',
+                  'foo.c: gen.py'], 'foo.c', set({'gen.py'})),
+                # linue continuation, multiple targets
+                (['foo.o \\', 'foo.h: bar'], 'foo.h', set({'bar'})),
+                (['foo.o \\', 'foo.h: bar'], 'foo.o', set({'bar'})),
+                # \\ handling
+                (['foo: Program\\ F\\iles\\\\X'], 'foo', set({'Program Files\\X'})),
+                # $ handling
+                (['f$o.o: c/b'], 'f$o.o', set({'c/b'})),
+                (['f$$o.o: c/b'], 'f$o.o', set({'c/b'})),
+                # cycles
+                (['a: b', 'b: a'], 'a', set({'a', 'b'})),
+                (['a: b', 'b: a'], 'b', set({'a', 'b'})),
+        ]:
+            d = mesonbuild.depfile.DepFile(f)
+            deps = d.get_all_dependencies(target)
+            self.assertEqual(sorted(deps), sorted(expdeps))
+
+    def test_log_once(self):
+        f = io.StringIO()
+        with mock.patch('mesonbuild.mlog.log_file', f), \
+                mock.patch('mesonbuild.mlog._logged_once', set()):
+            mesonbuild.mlog.log_once('foo')
+            mesonbuild.mlog.log_once('foo')
+            actual = f.getvalue().strip()
+            self.assertEqual(actual, 'foo', actual)
+
+    def test_log_once_ansi(self):
+        f = io.StringIO()
+        with mock.patch('mesonbuild.mlog.log_file', f), \
+                mock.patch('mesonbuild.mlog._logged_once', set()):
+            mesonbuild.mlog.log_once(mesonbuild.mlog.bold('foo'))
+            mesonbuild.mlog.log_once(mesonbuild.mlog.bold('foo'))
+            actual = f.getvalue().strip()
+            self.assertEqual(actual.count('foo'), 1, actual)
+
+            mesonbuild.mlog.log_once('foo')
+            actual = f.getvalue().strip()
+            self.assertEqual(actual.count('foo'), 1, actual)
+
+            f.truncate()
+
+            mesonbuild.mlog.warning('bar', once=True)
+            mesonbuild.mlog.warning('bar', once=True)
+            actual = f.getvalue().strip()
+            self.assertEqual(actual.count('bar'), 1, actual)
+
+    def test_sort_libpaths(self):
+        sort_libpaths = mesonbuild.dependencies.base.sort_libpaths
+        self.assertEqual(sort_libpaths(
+            ['/home/mesonuser/.local/lib', '/usr/local/lib', '/usr/lib'],
+            ['/home/mesonuser/.local/lib/pkgconfig', '/usr/local/lib/pkgconfig']),
+            ['/home/mesonuser/.local/lib', '/usr/local/lib', '/usr/lib'])
+        self.assertEqual(sort_libpaths(
+            ['/usr/local/lib', '/home/mesonuser/.local/lib', '/usr/lib'],
+            ['/home/mesonuser/.local/lib/pkgconfig', '/usr/local/lib/pkgconfig']),
+            ['/home/mesonuser/.local/lib', '/usr/local/lib', '/usr/lib'])
+        self.assertEqual(sort_libpaths(
+            ['/usr/lib', '/usr/local/lib', '/home/mesonuser/.local/lib'],
+            ['/home/mesonuser/.local/lib/pkgconfig', '/usr/local/lib/pkgconfig']),
+            ['/home/mesonuser/.local/lib', '/usr/local/lib', '/usr/lib'])
+        self.assertEqual(sort_libpaths(
+            ['/usr/lib', '/usr/local/lib', '/home/mesonuser/.local/lib'],
+            ['/home/mesonuser/.local/lib/pkgconfig', '/usr/local/libdata/pkgconfig']),
+            ['/home/mesonuser/.local/lib', '/usr/local/lib', '/usr/lib'])
+
+    def test_dependency_factory_order(self):
+        b = mesonbuild.dependencies.base
+        F = mesonbuild.dependencies.factory
+        with tempfile.TemporaryDirectory() as tmpdir:
+            with chdir(tmpdir):
+                env = get_fake_env()
+                env.scratch_dir = tmpdir
+
+                f = F.DependencyFactory(
+                    'test_dep',
+                    methods=[b.DependencyMethods.PKGCONFIG, b.DependencyMethods.CMAKE]
+                )
+                actual = [m() for m in f(env, MachineChoice.HOST, {'required': False})]
+                self.assertListEqual([m.type_name for m in actual], ['pkgconfig', 'cmake'])
+
+                f = F.DependencyFactory(
+                    'test_dep',
+                    methods=[b.DependencyMethods.CMAKE, b.DependencyMethods.PKGCONFIG]
+                )
+                actual = [m() for m in f(env, MachineChoice.HOST, {'required': False})]
+                self.assertListEqual([m.type_name for m in actual], ['cmake', 'pkgconfig'])
+
+    def test_validate_json(self) -> None:
+        """Validate the json schema for the test cases."""
+        try:
+            from jsonschema import validate, ValidationError
+        except ImportError:
+            if is_ci():
+                raise
+            raise unittest.SkipTest('Python jsonschema module not found.')
+
+        schema = json.loads(Path('data/test.schema.json').read_text(encoding='utf-8'))
+
+        errors = []  # type: T.Tuple[str, Exception]
+        for p in Path('test cases').glob('**/test.json'):
+            try:
+                validate(json.loads(p.read_text(encoding='utf-8')), schema=schema)
+            except ValidationError as e:
+                errors.append((p.resolve(), e))
+
+        for f, e in errors:
+            print(f'Failed to validate: "{f}"')
+            print(str(e))
+
+        self.assertFalse(errors)
+
+    def test_typed_pos_args_types(self) -> None:
+        @typed_pos_args('foo', str, int, bool)
+        def _(obj, node, args: T.Tuple[str, int, bool], kwargs) -> None:
+            self.assertIsInstance(args, tuple)
+            self.assertIsInstance(args[0], str)
+            self.assertIsInstance(args[1], int)
+            self.assertIsInstance(args[2], bool)
+
+        _(None, mock.Mock(), ['string', 1, False], None)
+
+    def test_typed_pos_args_types_invalid(self) -> None:
+        @typed_pos_args('foo', str, int, bool)
+        def _(obj, node, args: T.Tuple[str, int, bool], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 1.0, False], None)
+        self.assertEqual(str(cm.exception), 'foo argument 2 was of type "float" but should have been "int"')
+
+    def test_typed_pos_args_types_wrong_number(self) -> None:
+        @typed_pos_args('foo', str, int, bool)
+        def _(obj, node, args: T.Tuple[str, int, bool], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 1], None)
+        self.assertEqual(str(cm.exception), 'foo takes exactly 3 arguments, but got 2.')
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 1, True, True], None)
+        self.assertEqual(str(cm.exception), 'foo takes exactly 3 arguments, but got 4.')
+
+    def test_typed_pos_args_varargs(self) -> None:
+        @typed_pos_args('foo', str, varargs=str)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertIsInstance(args, tuple)
+            self.assertIsInstance(args[0], str)
+            self.assertIsInstance(args[1], list)
+            self.assertIsInstance(args[1][0], str)
+            self.assertIsInstance(args[1][1], str)
+
+        _(None, mock.Mock(), ['string', 'var', 'args'], None)
+
+    def test_typed_pos_args_varargs_not_given(self) -> None:
+        @typed_pos_args('foo', str, varargs=str)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertIsInstance(args, tuple)
+            self.assertIsInstance(args[0], str)
+            self.assertIsInstance(args[1], list)
+            self.assertEqual(args[1], [])
+
+        _(None, mock.Mock(), ['string'], None)
+
+    def test_typed_pos_args_varargs_invalid(self) -> None:
+        @typed_pos_args('foo', str, varargs=str)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 'var', 'args', 0], None)
+        self.assertEqual(str(cm.exception), 'foo argument 4 was of type "int" but should have been "str"')
+
+    def test_typed_pos_args_varargs_invalid_mulitple_types(self) -> None:
+        @typed_pos_args('foo', str, varargs=(str, list))
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 'var', 'args', 0], None)
+        self.assertEqual(str(cm.exception), 'foo argument 4 was of type "int" but should have been one of: "str", "list"')
+
+    def test_typed_pos_args_max_varargs(self) -> None:
+        @typed_pos_args('foo', str, varargs=str, max_varargs=5)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertIsInstance(args, tuple)
+            self.assertIsInstance(args[0], str)
+            self.assertIsInstance(args[1], list)
+            self.assertIsInstance(args[1][0], str)
+            self.assertIsInstance(args[1][1], str)
+
+        _(None, mock.Mock(), ['string', 'var', 'args'], None)
+
+    def test_typed_pos_args_max_varargs_exceeded(self) -> None:
+        @typed_pos_args('foo', str, varargs=str, max_varargs=1)
+        def _(obj, node, args: T.Tuple[str, T.Tuple[str, ...]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 'var', 'args'], None)
+        self.assertEqual(str(cm.exception), 'foo takes between 1 and 2 arguments, but got 3.')
+
+    def test_typed_pos_args_min_varargs(self) -> None:
+        @typed_pos_args('foo', varargs=str, max_varargs=2, min_varargs=1)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertIsInstance(args, tuple)
+            self.assertIsInstance(args[0], list)
+            self.assertIsInstance(args[0][0], str)
+            self.assertIsInstance(args[0][1], str)
+
+        _(None, mock.Mock(), ['string', 'var'], None)
+
+    def test_typed_pos_args_min_varargs_not_met(self) -> None:
+        @typed_pos_args('foo', str, varargs=str, min_varargs=1)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string'], None)
+        self.assertEqual(str(cm.exception), 'foo takes at least 2 arguments, but got 1.')
+
+    def test_typed_pos_args_min_and_max_varargs_exceeded(self) -> None:
+        @typed_pos_args('foo', str, varargs=str, min_varargs=1, max_varargs=2)
+        def _(obj, node, args: T.Tuple[str, T.Tuple[str, ...]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', 'var', 'args', 'bar'], None)
+        self.assertEqual(str(cm.exception), 'foo takes between 2 and 3 arguments, but got 4.')
+
+    def test_typed_pos_args_min_and_max_varargs_not_met(self) -> None:
+        @typed_pos_args('foo', str, varargs=str, min_varargs=1, max_varargs=2)
+        def _(obj, node, args: T.Tuple[str, T.Tuple[str, ...]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string'], None)
+        self.assertEqual(str(cm.exception), 'foo takes between 2 and 3 arguments, but got 1.')
+
+    def test_typed_pos_args_variadic_and_optional(self) -> None:
+        @typed_pos_args('foo', str, optargs=[str], varargs=str, min_varargs=0)
+        def _(obj, node, args: T.Tuple[str, T.List[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(AssertionError) as cm:
+            _(None, mock.Mock(), ['string'], None)
+        self.assertEqual(
+            str(cm.exception),
+            'varargs and optargs not supported together as this would be ambiguous')
+
+    def test_typed_pos_args_min_optargs_not_met(self) -> None:
+        @typed_pos_args('foo', str, str, optargs=[str])
+        def _(obj, node, args: T.Tuple[str, T.Optional[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string'], None)
+        self.assertEqual(str(cm.exception), 'foo takes at least 2 arguments, but got 1.')
+
+    def test_typed_pos_args_min_optargs_max_exceeded(self) -> None:
+        @typed_pos_args('foo', str, optargs=[str])
+        def _(obj, node, args: T.Tuple[str, T.Optional[str]], kwargs) -> None:
+            self.assertTrue(False)  # should not be reachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), ['string', '1', '2'], None)
+        self.assertEqual(str(cm.exception), 'foo takes at most 2 arguments, but got 3.')
+
+    def test_typed_pos_args_optargs_not_given(self) -> None:
+        @typed_pos_args('foo', str, optargs=[str])
+        def _(obj, node, args: T.Tuple[str, T.Optional[str]], kwargs) -> None:
+            self.assertEqual(len(args), 2)
+            self.assertIsInstance(args[0], str)
+            self.assertEqual(args[0], 'string')
+            self.assertIsNone(args[1])
+
+        _(None, mock.Mock(), ['string'], None)
+
+    def test_typed_pos_args_optargs_some_given(self) -> None:
+        @typed_pos_args('foo', str, optargs=[str, int])
+        def _(obj, node, args: T.Tuple[str, T.Optional[str], T.Optional[int]], kwargs) -> None:
+            self.assertEqual(len(args), 3)
+            self.assertIsInstance(args[0], str)
+            self.assertEqual(args[0], 'string')
+            self.assertIsInstance(args[1], str)
+            self.assertEqual(args[1], '1')
+            self.assertIsNone(args[2])
+
+        _(None, mock.Mock(), ['string', '1'], None)
+
+    def test_typed_pos_args_optargs_all_given(self) -> None:
+        @typed_pos_args('foo', str, optargs=[str])
+        def _(obj, node, args: T.Tuple[str, T.Optional[str]], kwargs) -> None:
+            self.assertEqual(len(args), 2)
+            self.assertIsInstance(args[0], str)
+            self.assertEqual(args[0], 'string')
+            self.assertIsInstance(args[1], str)
+
+        _(None, mock.Mock(), ['string', '1'], None)
+
+    def test_typed_kwarg_basic(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', str, default='')
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertIsInstance(kwargs['input'], str)
+            self.assertEqual(kwargs['input'], 'foo')
+
+        _(None, mock.Mock(), [], {'input': 'foo'})
+
+    def test_typed_kwarg_missing_required(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', str, required=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertTrue(False)  # should be unreachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), [], {})
+        self.assertEqual(str(cm.exception), 'testfunc is missing required keyword argument "input"')
+
+    def test_typed_kwarg_missing_optional(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', (str, type(None))),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.Optional[str]]) -> None:
+            self.assertIsNone(kwargs['input'])
+
+        _(None, mock.Mock(), [], {})
+
+    def test_typed_kwarg_default(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', str, default='default'),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertEqual(kwargs['input'], 'default')
+
+        _(None, mock.Mock(), [], {})
+
+    def test_typed_kwarg_container_valid(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str), default=[], required=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.List[str]]) -> None:
+            self.assertEqual(kwargs['input'], ['str'])
+
+        _(None, mock.Mock(), [], {'input': ['str']})
+
+    def test_typed_kwarg_container_invalid(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str), required=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.List[str]]) -> None:
+            self.assertTrue(False)  # should be unreachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), [], {'input': {}})
+        self.assertEqual(str(cm.exception), "testfunc keyword argument 'input' was of type dict[] but should have been array[str]")
+
+    def test_typed_kwarg_contained_invalid(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(dict, str), required=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.Dict[str, str]]) -> None:
+            self.assertTrue(False)  # should be unreachable
+
+        with self.assertRaises(InvalidArguments) as cm:
+            _(None, mock.Mock(), [], {'input': {'key': 1, 'bar': 2}})
+        self.assertEqual(str(cm.exception), "testfunc keyword argument 'input' was of type dict[int] but should have been dict[str]")
+
+    def test_typed_kwarg_container_listify(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str), default=[], listify=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.List[str]]) -> None:
+            self.assertEqual(kwargs['input'], ['str'])
+
+        _(None, mock.Mock(), [], {'input': 'str'})
+
+    def test_typed_kwarg_container_default_copy(self) -> None:
+        default: T.List[str] = []
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str), listify=True, default=default),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.List[str]]) -> None:
+            self.assertIsNot(kwargs['input'], default)
+
+        _(None, mock.Mock(), [], {})
+
+    def test_typed_kwarg_container_pairs(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str, pairs=True), listify=True),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, T.List[str]]) -> None:
+            self.assertEqual(kwargs['input'], ['a', 'b'])
+
+        _(None, mock.Mock(), [], {'input': ['a', 'b']})
+
+        with self.assertRaises(MesonException) as cm:
+            _(None, mock.Mock(), [], {'input': ['a']})
+        self.assertEqual(str(cm.exception), "testfunc keyword argument 'input' was of type array[str] but should have been array[str] that has even size")
+
+    def test_typed_kwarg_since(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', str, since='1.0', since_message='Its awesome, use it',
+                      deprecated='2.0', deprecated_message='Its terrible, dont use it')
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertIsInstance(kwargs['input'], str)
+            self.assertEqual(kwargs['input'], 'foo')
+
+        with self.subTest('use before available'), \
+                mock.patch('sys.stdout', io.StringIO()) as out, \
+                mock.patch('mesonbuild.mesonlib.project_meson_versions', {'': '0.1'}):
+            # With Meson 0.1 it should trigger the "introduced" warning but not the "deprecated" warning
+            _(None, mock.Mock(subproject=''), [], {'input': 'foo'})
+            self.assertRegex(out.getvalue(), r'WARNING:.*introduced.*input arg in testfunc. Its awesome, use it')
+            self.assertNotRegex(out.getvalue(), r'WARNING:.*deprecated.*input arg in testfunc. Its terrible, dont use it')
+
+        with self.subTest('no warnings should be triggered'), \
+                mock.patch('sys.stdout', io.StringIO()) as out, \
+                mock.patch('mesonbuild.mesonlib.project_meson_versions', {'': '1.5'}):
+            # With Meson 1.5 it shouldn't trigger any warning
+            _(None, mock.Mock(subproject=''), [], {'input': 'foo'})
+            self.assertNotRegex(out.getvalue(), r'WARNING:.*')
+
+        with self.subTest('use after deprecated'), \
+                mock.patch('sys.stdout', io.StringIO()) as out, \
+                mock.patch('mesonbuild.mesonlib.project_meson_versions', {'': '2.0'}):
+            # With Meson 2.0 it should trigger the "deprecated" warning but not the "introduced" warning
+            _(None, mock.Mock(subproject=''), [], {'input': 'foo'})
+            self.assertRegex(out.getvalue(), r'WARNING:.*deprecated.*input arg in testfunc. Its terrible, dont use it')
+            self.assertNotRegex(out.getvalue(), r'WARNING:.*introduced.*input arg in testfunc. Its awesome, use it')
+
+    def test_typed_kwarg_validator(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', str, default='', validator=lambda x: 'invalid!' if x != 'foo' else None)
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            pass
+
+        # Should be valid
+        _(None, mock.Mock(), tuple(), dict(input='foo'))
+
+        with self.assertRaises(MesonException) as cm:
+            _(None, mock.Mock(), tuple(), dict(input='bar'))
+        self.assertEqual(str(cm.exception), "testfunc keyword argument \"input\" invalid!")
+
+    def test_typed_kwarg_convertor(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('native', bool, default=False, convertor=lambda n: MachineChoice.BUILD if n else MachineChoice.HOST)
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, MachineChoice]) -> None:
+            assert isinstance(kwargs['native'], MachineChoice)
+
+        _(None, mock.Mock(), tuple(), dict(native=True))
+
+    @mock.patch('mesonbuild.mesonlib.project_meson_versions', {'': '1.0'})
+    def test_typed_kwarg_since_values(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', ContainerTypeInfo(list, str), listify=True, default=[], deprecated_values={'foo': '0.9'}, since_values={'bar': '1.1'}),
+            KwargInfo('output', ContainerTypeInfo(dict, str), default={}, deprecated_values={'foo': '0.9', 'foo2': ('0.9', 'dont use it')}, since_values={'bar': '1.1', 'bar2': ('1.1', 'use this')}),
+            KwargInfo('install_dir', (bool, str, NoneType), deprecated_values={False: '0.9'}),
+            KwargInfo(
+                'mode',
+                (str, type(None)),
+                validator=in_set_validator({'clean', 'build', 'rebuild', 'deprecated', 'since'}),
+                deprecated_values={'deprecated': '1.0'},
+                since_values={'since': '1.1'}),
+            KwargInfo('dict', (ContainerTypeInfo(list, str), ContainerTypeInfo(dict, str)), default={},
+                      since_values={list: '1.9'}),
+            KwargInfo('new_dict', (ContainerTypeInfo(list, str), ContainerTypeInfo(dict, str)), default={},
+                      since_values={dict: '1.1'}),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            pass
+
+        with self.subTest('deprecated array string value'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'input': ['foo']})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*deprecated since '0.9': "testfunc" keyword argument "input" value "foo".*""")
+
+        with self.subTest('new array string value'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'input': ['bar']})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "input" value "bar".*""")
+
+        with self.subTest('deprecated dict string value'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'output': {'foo': 'a'}})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*deprecated since '0.9': "testfunc" keyword argument "output" value "foo".*""")
+
+        with self.subTest('deprecated dict string value with msg'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'output': {'foo2': 'a'}})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*deprecated since '0.9': "testfunc" keyword argument "output" value "foo2". dont use it.*""")
+
+        with self.subTest('new dict string value'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'output': {'bar': 'b'}})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "output" value "bar".*""")
+
+        with self.subTest('new dict string value with msg'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'output': {'bar2': 'a'}})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "output" value "bar2". use this.*""")
+
+        with self.subTest('non string union'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'install_dir': False})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*deprecated since '0.9': "testfunc" keyword argument "install_dir" value "False".*""")
+
+        with self.subTest('deprecated string union'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'mode': 'deprecated'})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*deprecated since '1.0': "testfunc" keyword argument "mode" value "deprecated".*""")
+
+        with self.subTest('new string union'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'mode': 'since'})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "mode" value "since".*""")
+
+        with self.subTest('new container'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'dict': ['a=b']})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.9': "testfunc" keyword argument "dict" of type list.*""")
+
+        with self.subTest('new container set to default'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {'new_dict': {}})
+            self.assertRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "new_dict" of type dict.*""")
+
+        with self.subTest('new container default'), mock.patch('sys.stdout', io.StringIO()) as out:
+            _(None, mock.Mock(subproject=''), [], {})
+            self.assertNotRegex(out.getvalue(), r"""WARNING:.Project targets '1.0'.*introduced in '1.1': "testfunc" keyword argument "new_dict" of type dict.*""")
+
+    def test_typed_kwarg_evolve(self) -> None:
+        k = KwargInfo('foo', str, required=True, default='foo')
+        v = k.evolve(default='bar')
+        self.assertEqual(k.name, 'foo')
+        self.assertEqual(k.name, v.name)
+        self.assertEqual(k.types, str)
+        self.assertEqual(k.types, v.types)
+        self.assertEqual(k.required, True)
+        self.assertEqual(k.required, v.required)
+        self.assertEqual(k.default, 'foo')
+        self.assertEqual(v.default, 'bar')
+
+    def test_typed_kwarg_default_type(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('no_default', (str, ContainerTypeInfo(list, str), NoneType)),
+            KwargInfo('str_default', (str, ContainerTypeInfo(list, str)), default=''),
+            KwargInfo('list_default', (str, ContainerTypeInfo(list, str)), default=['']),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertEqual(kwargs['no_default'], None)
+            self.assertEqual(kwargs['str_default'], '')
+            self.assertEqual(kwargs['list_default'], [''])
+        _(None, mock.Mock(), [], {})
+
+    def test_typed_kwarg_invalid_default_type(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('invalid_default', (str, ContainerTypeInfo(list, str), NoneType), default=42),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            pass
+        self.assertRaises(AssertionError, _, None, mock.Mock(), [], {})
+
+    def test_typed_kwarg_container_in_tuple(self) -> None:
+        @typed_kwargs(
+            'testfunc',
+            KwargInfo('input', (str, ContainerTypeInfo(list, str))),
+        )
+        def _(obj, node, args: T.Tuple, kwargs: T.Dict[str, str]) -> None:
+            self.assertEqual(kwargs['input'], args[0])
+        _(None, mock.Mock(), [''], {'input': ''})
+        _(None, mock.Mock(), [['']], {'input': ['']})
+        self.assertRaises(InvalidArguments, _, None, mock.Mock(), [], {'input': 42})
+
+    def test_detect_cpu_family(self) -> None:
+        """Test the various cpu families that we detect and normalize.
+
+        This is particularly useful as both documentation, and to keep testing
+        platforms that are less common.
+        """
+
+        @contextlib.contextmanager
+        def mock_trial(value: str) -> T.Iterable[None]:
+            """Mock all of the ways we could get the trial at once."""
+            mocked = mock.Mock(return_value=value)
+
+            with mock.patch('mesonbuild.environment.detect_windows_arch', mocked), \
+                    mock.patch('mesonbuild.environment.platform.processor', mocked), \
+                    mock.patch('mesonbuild.environment.platform.machine', mocked):
+                yield
+
+        cases = [
+            ('x86', 'x86'),
+            ('i386', 'x86'),
+            ('bepc', 'x86'),  # Haiku
+            ('earm', 'arm'),  # NetBSD
+            ('arm', 'arm'),
+            ('ppc64', 'ppc64'),
+            ('powerpc64', 'ppc64'),
+            ('powerpc', 'ppc'),
+            ('ppc', 'ppc'),
+            ('macppc', 'ppc'),
+            ('power macintosh', 'ppc'),
+            ('mips64el', 'mips64'),
+            ('mips64', 'mips64'),
+            ('mips', 'mips'),
+            ('mipsel', 'mips'),
+            ('ip30', 'mips64'),
+            ('ip35', 'mips64'),
+            ('parisc64', 'parisc'),
+            ('sun4u', 'sparc64'),
+            ('sun4v', 'sparc64'),
+            ('amd64', 'x86_64'),
+            ('x64', 'x86_64'),
+            ('i86pc', 'x86_64'),  # Solaris
+            ('aarch64', 'aarch64'),
+            ('aarch64_be', 'aarch64'),
+        ]
+
+        with mock.patch('mesonbuild.environment.any_compiler_has_define', mock.Mock(return_value=False)):
+            for test, expected in cases:
+                with self.subTest(test, has_define=False), mock_trial(test):
+                    actual = mesonbuild.environment.detect_cpu_family({})
+                    self.assertEqual(actual, expected)
+
+        with mock.patch('mesonbuild.environment.any_compiler_has_define', mock.Mock(return_value=True)):
+            for test, expected in [('x86_64', 'x86'), ('aarch64', 'arm'), ('ppc', 'ppc64')]:
+                with self.subTest(test, has_define=True), mock_trial(test):
+                    actual = mesonbuild.environment.detect_cpu_family({})
+                    self.assertEqual(actual, expected)
+
+    def test_detect_cpu(self) -> None:
+
+        @contextlib.contextmanager
+        def mock_trial(value: str) -> T.Iterable[None]:
+            """Mock all of the ways we could get the trial at once."""
+            mocked = mock.Mock(return_value=value)
+
+            with mock.patch('mesonbuild.environment.detect_windows_arch', mocked), \
+                    mock.patch('mesonbuild.environment.platform.processor', mocked), \
+                    mock.patch('mesonbuild.environment.platform.machine', mocked):
+                yield
+
+        cases = [
+            ('amd64', 'x86_64'),
+            ('x64', 'x86_64'),
+            ('i86pc', 'x86_64'),
+            ('earm', 'arm'),
+            ('mips64el', 'mips64'),
+            ('mips64', 'mips64'),
+            ('mips', 'mips'),
+            ('mipsel', 'mips'),
+            ('aarch64', 'aarch64'),
+            ('aarch64_be', 'aarch64'),
+        ]
+
+        with mock.patch('mesonbuild.environment.any_compiler_has_define', mock.Mock(return_value=False)):
+            for test, expected in cases:
+                with self.subTest(test, has_define=False), mock_trial(test):
+                    actual = mesonbuild.environment.detect_cpu({})
+                    self.assertEqual(actual, expected)
+
+        with mock.patch('mesonbuild.environment.any_compiler_has_define', mock.Mock(return_value=True)):
+            for test, expected in [('x86_64', 'i686'), ('aarch64', 'arm'), ('ppc', 'ppc64')]:
+                with self.subTest(test, has_define=True), mock_trial(test):
+                    actual = mesonbuild.environment.detect_cpu({})
+                    self.assertEqual(actual, expected)
+
+    def test_interpreter_unpicklable(self) -> None:
+        build = mock.Mock()
+        build.environment = mock.Mock()
+        build.environment.get_source_dir = mock.Mock(return_value='')
+        with mock.patch('mesonbuild.interpreter.Interpreter._redetect_machines', mock.Mock()), \
+                self.assertRaises(mesonbuild.mesonlib.MesonBugException):
+            i = mesonbuild.interpreter.Interpreter(build, mock=True)
+            pickle.dumps(i)
+
+    def test_major_versions_differ(self) -> None:
+        # Return True when going to next major release, when going to dev cycle,
+        # when going to rc cycle or when going out of rc cycle.
+        self.assertTrue(coredata.major_versions_differ('0.59.0', '0.60.0'))
+        self.assertTrue(coredata.major_versions_differ('0.59.0', '0.59.99'))
+        self.assertTrue(coredata.major_versions_differ('0.59.0', '0.60.0.rc1'))
+        self.assertTrue(coredata.major_versions_differ('0.59.99', '0.60.0.rc1'))
+        self.assertTrue(coredata.major_versions_differ('0.60.0.rc1', '0.60.0'))
+        # Return False when going to next point release or when staying in dev/rc cycle.
+        self.assertFalse(coredata.major_versions_differ('0.60.0', '0.60.0'))
+        self.assertFalse(coredata.major_versions_differ('0.60.0', '0.60.1'))
+        self.assertFalse(coredata.major_versions_differ('0.59.99', '0.59.99'))
+        self.assertFalse(coredata.major_versions_differ('0.60.0.rc1', '0.60.0.rc2'))
+
+    def test_option_key_from_string(self) -> None:
+        cases = [
+            ('c_args', OptionKey('args', lang='c', _type=OptionType.COMPILER)),
+            ('build.cpp_args', OptionKey('args', machine=MachineChoice.BUILD, lang='cpp', _type=OptionType.COMPILER)),
+            ('prefix', OptionKey('prefix', _type=OptionType.BUILTIN)),
+            ('made_up', OptionKey('made_up', _type=OptionType.PROJECT)),
+
+            # TODO: the from_String method should be splitting the prefix off of
+            # these, as we have the type already, but it doesn't. For now have a
+            # test so that we don't change the behavior un-intentionally
+            ('b_lto', OptionKey('b_lto', _type=OptionType.BASE)),
+            ('backend_startup_project', OptionKey('backend_startup_project', _type=OptionType.BACKEND)),
+        ]
+
+        for raw, expected in cases:
+            with self.subTest(raw):
+                self.assertEqual(OptionKey.from_string(raw), expected)