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path: root/python/mozbuild/mozbuild/test/test_mozinfo.py
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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this file,
# You can obtain one at http://mozilla.org/MPL/2.0/.

import json
import os
import tempfile
import unittest

import mozunit
import six
from mozfile.mozfile import NamedTemporaryFile
from six import StringIO

from mozbuild.backend.configenvironment import ConfigEnvironment
from mozbuild.mozinfo import build_dict, write_mozinfo


class Base(object):
    def _config(self, substs={}):
        d = os.path.dirname(__file__)
        return ConfigEnvironment(d, d, substs=substs)


class TestBuildDict(unittest.TestCase, Base):
    def test_missing(self):
        """
        Test that missing required values raises.
        """

        with self.assertRaises(Exception):
            build_dict(self._config(substs=dict(OS_TARGET="foo")))

        with self.assertRaises(Exception):
            build_dict(self._config(substs=dict(TARGET_CPU="foo")))

        with self.assertRaises(Exception):
            build_dict(self._config(substs=dict(MOZ_WIDGET_TOOLKIT="foo")))

    def test_win(self):
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="WINNT",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="windows",
                )
            )
        )
        self.assertEqual("win", d["os"])
        self.assertEqual("x86", d["processor"])
        self.assertEqual("windows", d["toolkit"])
        self.assertEqual(32, d["bits"])

    def test_linux(self):
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual("linux", d["os"])
        self.assertEqual("x86", d["processor"])
        self.assertEqual("gtk", d["toolkit"])
        self.assertEqual(32, d["bits"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="x86_64",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual("linux", d["os"])
        self.assertEqual("x86_64", d["processor"])
        self.assertEqual("gtk", d["toolkit"])
        self.assertEqual(64, d["bits"])

    def test_mac(self):
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Darwin",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="cocoa",
                )
            )
        )
        self.assertEqual("mac", d["os"])
        self.assertEqual("x86", d["processor"])
        self.assertEqual("cocoa", d["toolkit"])
        self.assertEqual(32, d["bits"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Darwin",
                    TARGET_CPU="x86_64",
                    MOZ_WIDGET_TOOLKIT="cocoa",
                )
            )
        )
        self.assertEqual("mac", d["os"])
        self.assertEqual("x86_64", d["processor"])
        self.assertEqual("cocoa", d["toolkit"])
        self.assertEqual(64, d["bits"])

    def test_android(self):
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Android",
                    TARGET_CPU="arm",
                    MOZ_WIDGET_TOOLKIT="android",
                )
            )
        )
        self.assertEqual("android", d["os"])
        self.assertEqual("arm", d["processor"])
        self.assertEqual("android", d["toolkit"])
        self.assertEqual(32, d["bits"])

    def test_x86(self):
        """
        Test that various i?86 values => x86.
        """
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="WINNT",
                    TARGET_CPU="i486",
                    MOZ_WIDGET_TOOLKIT="windows",
                )
            )
        )
        self.assertEqual("x86", d["processor"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="WINNT",
                    TARGET_CPU="i686",
                    MOZ_WIDGET_TOOLKIT="windows",
                )
            )
        )
        self.assertEqual("x86", d["processor"])

    def test_arm(self):
        """
        Test that all arm CPU architectures => arm.
        """
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="arm",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual("arm", d["processor"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="armv7",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual("arm", d["processor"])

    def test_unknown(self):
        """
        Test that unknown values pass through okay.
        """
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="RandOS",
                    TARGET_CPU="cptwo",
                    MOZ_WIDGET_TOOLKIT="foobar",
                )
            )
        )
        self.assertEqual("randos", d["os"])
        self.assertEqual("cptwo", d["processor"])
        self.assertEqual("foobar", d["toolkit"])
        # unknown CPUs should not get a bits value
        self.assertFalse("bits" in d)

    def test_debug(self):
        """
        Test that debug values are properly detected.
        """
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual(False, d["debug"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="gtk",
                    MOZ_DEBUG="1",
                )
            )
        )
        self.assertEqual(True, d["debug"])

    def test_crashreporter(self):
        """
        Test that crashreporter values are properly detected.
        """
        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="gtk",
                )
            )
        )
        self.assertEqual(False, d["crashreporter"])

        d = build_dict(
            self._config(
                dict(
                    OS_TARGET="Linux",
                    TARGET_CPU="i386",
                    MOZ_WIDGET_TOOLKIT="gtk",
                    MOZ_CRASHREPORTER="1",
                )
            )
        )
        self.assertEqual(True, d["crashreporter"])


class TestWriteMozinfo(unittest.TestCase, Base):
    """
    Test the write_mozinfo function.
    """

    def setUp(self):
        fd, f = tempfile.mkstemp()
        self.f = six.ensure_text(f)
        os.close(fd)

    def tearDown(self):
        os.unlink(self.f)

    def test_basic(self):
        """
        Test that writing to a file produces correct output.
        """
        c = self._config(
            dict(
                OS_TARGET="WINNT",
                TARGET_CPU="i386",
                MOZ_WIDGET_TOOLKIT="windows",
            )
        )
        tempdir = tempfile.gettempdir()
        c.topsrcdir = tempdir
        with NamedTemporaryFile(
            dir=os.path.normpath(c.topsrcdir), mode="wt"
        ) as mozconfig:
            mozconfig.write("unused contents")
            mozconfig.flush()
            c.mozconfig = mozconfig.name
            write_mozinfo(self.f, c)
            with open(self.f) as f:
                d = json.load(f)
                self.assertEqual("win", d["os"])
                self.assertEqual("x86", d["processor"])
                self.assertEqual("windows", d["toolkit"])
                self.assertEqual(tempdir, d["topsrcdir"])
                self.assertEqual(mozconfig.name, d["mozconfig"])
                self.assertEqual(32, d["bits"])

    def test_fileobj(self):
        """
        Test that writing to a file-like object produces correct output.
        """
        s = StringIO()
        c = self._config(
            dict(
                OS_TARGET="WINNT",
                TARGET_CPU="i386",
                MOZ_WIDGET_TOOLKIT="windows",
            )
        )
        write_mozinfo(s, c)
        d = json.loads(s.getvalue())
        self.assertEqual("win", d["os"])
        self.assertEqual("x86", d["processor"])
        self.assertEqual("windows", d["toolkit"])
        self.assertEqual(32, d["bits"])


if __name__ == "__main__":
    mozunit.main()