5 files changed, 188 insertions, 252 deletions

diff --git a/tests/languages/golang_test.py b/tests/languages/golang_test.py
index 0219261..7c04255 100644
--- a/tests/languages/golang_test.py
+++ b/tests/languages/golang_test.py
@@ -1,9 +1,9 @@
 from __future__ import annotations
 
-import re
 from unittest import mock
 
 import pytest
+import re_assert
 
 import pre_commit.constants as C
 from pre_commit.languages import golang
@@ -40,4 +40,4 @@ def test_golang_infer_go_version_default():
     version = ACTUAL_INFER_GO_VERSION(C.DEFAULT)
 
     assert version != C.DEFAULT
-    assert re.match(r'^\d+\.\d+\.\d+$', version)
+    re_assert.Matches(r'^\d+\.\d+(?:\.\d+)?$').assert_matches(version)
diff --git a/tests/languages/node_test.py b/tests/languages/node_test.py
index b69adfa..cba0228 100644
--- a/tests/languages/node_test.py
+++ b/tests/languages/node_test.py
@@ -13,7 +13,9 @@ from pre_commit import envcontext
 from pre_commit import parse_shebang
 from pre_commit.languages import node
 from pre_commit.prefix import Prefix
+from pre_commit.store import _make_local_repo
 from pre_commit.util import cmd_output
+from testing.language_helpers import run_language
 from testing.util import xfailif_windows
 
 
@@ -109,3 +111,42 @@ def test_installs_without_links_outside_env(tmpdir):
 
     with node.in_env(prefix, 'system'):
         assert cmd_output('foo')[1] == 'success!\n'
+
+
+def _make_hello_world(tmp_path):
+    package_json = '''\
+{"name": "t", "version": "0.0.1", "bin": {"node-hello": "./bin/main.js"}}
+'''
+    tmp_path.joinpath('package.json').write_text(package_json)
+    bin_dir = tmp_path.joinpath('bin')
+    bin_dir.mkdir()
+    bin_dir.joinpath('main.js').write_text(
+        '#!/usr/bin/env node\n'
+        'console.log("Hello World");\n',
+    )
+
+
+def test_node_hook_system(tmp_path):
+    _make_hello_world(tmp_path)
+    ret = run_language(tmp_path, node, 'node-hello')
+    assert ret == (0, b'Hello World\n')
+
+
+def test_node_with_user_config_set(tmp_path):
+    cfg = tmp_path.joinpath('cfg')
+    cfg.write_text('cache=/dne\n')
+    with envcontext.envcontext((('NPM_CONFIG_USERCONFIG', str(cfg)),)):
+        test_node_hook_system(tmp_path)
+
+
+@pytest.mark.parametrize('version', (C.DEFAULT, '18.13.0'))
+def test_node_hook_versions(tmp_path, version):
+    _make_hello_world(tmp_path)
+    ret = run_language(tmp_path, node, 'node-hello', version=version)
+    assert ret == (0, b'Hello World\n')
+
+
+def test_node_additional_deps(tmp_path):
+    _make_local_repo(str(tmp_path))
+    ret, out = run_language(tmp_path, node, 'npm ls -g', deps=('lodash',))
+    assert b' lodash@' in out
diff --git a/tests/languages/ruby_test.py b/tests/languages/ruby_test.py
index 63a16eb..9cfaad5 100644
--- a/tests/languages/ruby_test.py
+++ b/tests/languages/ruby_test.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import os.path
 import tarfile
 from unittest import mock
 
@@ -8,10 +7,12 @@ import pytest
 
 import pre_commit.constants as C
 from pre_commit import parse_shebang
+from pre_commit.envcontext import envcontext
 from pre_commit.languages import ruby
-from pre_commit.prefix import Prefix
-from pre_commit.util import cmd_output
+from pre_commit.store import _make_local_repo
 from pre_commit.util import resource_bytesio
+from testing.language_helpers import run_language
+from testing.util import cwd
 from testing.util import xfailif_windows
 
 
@@ -34,56 +35,105 @@ def test_uses_system_if_both_gem_and_ruby_are_available(find_exe_mck):
     assert ACTUAL_GET_DEFAULT_VERSION() == 'system'
 
 
-@pytest.fixture
-def fake_gem_prefix(tmpdir):
+@pytest.mark.parametrize(
+    'filename',
+    ('rbenv.tar.gz', 'ruby-build.tar.gz', 'ruby-download.tar.gz'),
+)
+def test_archive_root_stat(filename):
+    with resource_bytesio(filename) as f:
+        with tarfile.open(fileobj=f) as tarf:
+            root, _, _ = filename.partition('.')
+            assert oct(tarf.getmember(root).mode) == '0o755'
+
+
+def _setup_hello_world(tmp_path):
+    bin_dir = tmp_path.joinpath('bin')
+    bin_dir.mkdir()
+    bin_dir.joinpath('ruby_hook').write_text(
+        '#!/usr/bin/env ruby\n'
+        "puts 'Hello world from a ruby hook'\n",
+    )
     gemspec = '''\
 Gem::Specification.new do |s|
-    s.name = 'pre_commit_placeholder_package'
-    s.version = '0.0.0'
-    s.summary = 'placeholder gem for pre-commit hooks'
+    s.name = 'ruby_hook'
+    s.version = '0.1.0'
     s.authors = ['Anthony Sottile']
+    s.summary = 'A ruby hook!'
+    s.description = 'A ruby hook!'
+    s.files = ['bin/ruby_hook']
+    s.executables = ['ruby_hook']
 end
 '''
-    tmpdir.join('placeholder_gem.gemspec').write(gemspec)
-    yield Prefix(tmpdir)
+    tmp_path.joinpath('ruby_hook.gemspec').write_text(gemspec)
 
 
-@xfailif_windows  # pragma: win32 no cover
-def test_install_ruby_system(fake_gem_prefix):
-    ruby.install_environment(fake_gem_prefix, 'system', ())
+def test_ruby_hook_system(tmp_path):
+    assert ruby.get_default_version() == 'system'
+
+    _setup_hello_world(tmp_path)
+
+    ret = run_language(tmp_path, ruby, 'ruby_hook')
+    assert ret == (0, b'Hello world from a ruby hook\n')
 
-    # Should be able to activate and use rbenv install
-    with ruby.in_env(fake_gem_prefix, 'system'):
-        _, out, _ = cmd_output('gem', 'list')
-        assert 'pre_commit_placeholder_package' in out
+
+def test_ruby_with_user_install_set(tmp_path):
+    gemrc = tmp_path.joinpath('gemrc')
+    gemrc.write_text('gem: --user-install\n')
+
+    with envcontext((('GEMRC', str(gemrc)),)):
+        test_ruby_hook_system(tmp_path)
+
+
+def test_ruby_additional_deps(tmp_path):
+    _make_local_repo(tmp_path)
+
+    ret = run_language(
+        tmp_path,
+        ruby,
+        'ruby -e',
+        args=('require "tins"',),
+        deps=('tins',),
+    )
+    assert ret == (0, b'')
 
 
 @xfailif_windows  # pragma: win32 no cover
-def test_install_ruby_default(fake_gem_prefix):
-    ruby.install_environment(fake_gem_prefix, C.DEFAULT, ())
-    # Should have created rbenv directory
-    assert os.path.exists(fake_gem_prefix.path('rbenv-default'))
+def test_ruby_hook_default(tmp_path):
+    _setup_hello_world(tmp_path)
 
-    # Should be able to activate using our script and access rbenv
-    with ruby.in_env(fake_gem_prefix, 'default'):
-        cmd_output('rbenv', '--help')
+    out, ret = run_language(tmp_path, ruby, 'rbenv --help', version='default')
+    assert out == 0
+    assert ret.startswith(b'Usage: rbenv ')
 
 
 @xfailif_windows  # pragma: win32 no cover
-def test_install_ruby_with_version(fake_gem_prefix):
-    ruby.install_environment(fake_gem_prefix, '3.2.0', ())
+def test_ruby_hook_language_version(tmp_path):
+    _setup_hello_world(tmp_path)
+    tmp_path.joinpath('bin', 'ruby_hook').write_text(
+        '#!/usr/bin/env ruby\n'
+        'puts RUBY_VERSION\n'
+        "puts 'Hello world from a ruby hook'\n",
+    )
 
-    # Should be able to activate and use rbenv install
-    with ruby.in_env(fake_gem_prefix, '3.2.0'):
-        cmd_output('rbenv', 'install', '--help')
+    ret = run_language(tmp_path, ruby, 'ruby_hook', version='3.2.0')
+    assert ret == (0, b'3.2.0\nHello world from a ruby hook\n')
 
 
-@pytest.mark.parametrize(
-    'filename',
-    ('rbenv.tar.gz', 'ruby-build.tar.gz', 'ruby-download.tar.gz'),
-)
-def test_archive_root_stat(filename):
-    with resource_bytesio(filename) as f:
-        with tarfile.open(fileobj=f) as tarf:
-            root, _, _ = filename.partition('.')
-            assert oct(tarf.getmember(root).mode) == '0o755'
+@xfailif_windows  # pragma: win32 no cover
+def test_ruby_with_bundle_disable_shared_gems(tmp_path):
+    workdir = tmp_path.joinpath('workdir')
+    workdir.mkdir()
+    # this needs a `source` or there's a deprecation warning
+    # silencing this with `BUNDLE_GEMFILE` breaks some tools (#2739)
+    workdir.joinpath('Gemfile').write_text('source ""\ngem "lol_hai"\n')
+    # this bundle config causes things to be written elsewhere
+    bundle = workdir.joinpath('.bundle')
+    bundle.mkdir()
+    bundle.joinpath('config').write_text(
+        'BUNDLE_DISABLE_SHARED_GEMS: true\n'
+        'BUNDLE_PATH: vendor/gem\n',
+    )
+
+    with cwd(workdir):
+        # `3.2.0` has new enough `gem` reading `.bundle`
+        test_ruby_hook_language_version(tmp_path)
diff --git a/tests/languages/rust_test.py b/tests/languages/rust_test.py
index b8167a9..5c17f5b 100644
--- a/tests/languages/rust_test.py
+++ b/tests/languages/rust_test.py
@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from typing import Mapping
 from unittest import mock
 
 import pytest
@@ -8,8 +7,8 @@ import pytest
 import pre_commit.constants as C
 from pre_commit import parse_shebang
 from pre_commit.languages import rust
-from pre_commit.prefix import Prefix
-from pre_commit.util import cmd_output
+from pre_commit.store import _make_local_repo
+from testing.language_helpers import run_language
 
 ACTUAL_GET_DEFAULT_VERSION = rust.get_default_version.__wrapped__
 
@@ -30,64 +29,78 @@ def test_uses_default_when_rust_is_not_available(cmd_output_b_mck):
     assert ACTUAL_GET_DEFAULT_VERSION() == C.DEFAULT
 
 
-@pytest.mark.parametrize('language_version', (C.DEFAULT, '1.56.0'))
-def test_installs_with_bootstrapped_rustup(tmpdir, language_version):
-    tmpdir.join('src', 'main.rs').ensure().write(
+def _make_hello_world(tmp_path):
+    src_dir = tmp_path.joinpath('src')
+    src_dir.mkdir()
+    src_dir.joinpath('main.rs').write_text(
         'fn main() {\n'
         '    println!("Hello, world!");\n'
         '}\n',
     )
-    tmpdir.join('Cargo.toml').ensure().write(
+    tmp_path.joinpath('Cargo.toml').write_text(
         '[package]\n'
         'name = "hello_world"\n'
         'version = "0.1.0"\n'
         'edition = "2021"\n',
     )
-    prefix = Prefix(str(tmpdir))
 
-    find_executable_exes = []
 
-    original_find_executable = parse_shebang.find_executable
+def test_installs_rust_missing_rustup(tmp_path):
+    _make_hello_world(tmp_path)
 
-    def mocked_find_executable(
-            exe: str, *, env: Mapping[str, str] | None = None,
-    ) -> str | None:
-        """
-        Return `None` the first time `find_executable` is called to ensure
-        that the bootstrapping code is executed, then just let the function
-        work as normal.
+    # pretend like `rustup` doesn't exist so it gets bootstrapped
+    calls = []
+    orig = parse_shebang.find_executable
 
-        Also log the arguments to ensure that everything works as expected.
-        """
-        find_executable_exes.append(exe)
-        if len(find_executable_exes) == 1:
+    def mck(exe, env=None):
+        calls.append(exe)
+        if len(calls) == 1:
+            assert exe == 'rustup'
             return None
-        return original_find_executable(exe, env=env)
+        return orig(exe, env=env)
 
-    with mock.patch.object(parse_shebang, 'find_executable') as find_exe_mck:
-        find_exe_mck.side_effect = mocked_find_executable
-        rust.install_environment(prefix, language_version, ())
-        assert find_executable_exes == ['rustup', 'rustup', 'cargo']
+    with mock.patch.object(parse_shebang, 'find_executable', side_effect=mck):
+        ret = run_language(tmp_path, rust, 'hello_world', version='1.56.0')
+    assert calls == ['rustup', 'rustup', 'cargo', 'hello_world']
+    assert ret == (0, b'Hello, world!\n')
 
-    with rust.in_env(prefix, language_version):
-        assert cmd_output('hello_world')[1] == 'Hello, world!\n'
 
+@pytest.mark.parametrize('version', (C.DEFAULT, '1.56.0'))
+def test_language_version_with_rustup(tmp_path, version):
+    assert parse_shebang.find_executable('rustup') is not None
 
-def test_installs_with_existing_rustup(tmpdir):
-    tmpdir.join('src', 'main.rs').ensure().write(
-        'fn main() {\n'
-        '    println!("Hello, world!");\n'
-        '}\n',
-    )
-    tmpdir.join('Cargo.toml').ensure().write(
-        '[package]\n'
-        'name = "hello_world"\n'
-        'version = "0.1.0"\n'
-        'edition = "2021"\n',
+    _make_hello_world(tmp_path)
+
+    ret = run_language(tmp_path, rust, 'hello_world', version=version)
+    assert ret == (0, b'Hello, world!\n')
+
+
+@pytest.mark.parametrize('dep', ('cli:shellharden:4.2.0', 'cli:shellharden'))
+def test_rust_cli_additional_dependencies(tmp_path, dep):
+    _make_local_repo(str(tmp_path))
+
+    t_sh = tmp_path.joinpath('t.sh')
+    t_sh.write_text('echo $hi\n')
+
+    assert rust.get_default_version() == 'system'
+    ret = run_language(
+        tmp_path,
+        rust,
+        'shellharden --transform',
+        deps=(dep,),
+        args=(str(t_sh),),
     )
-    prefix = Prefix(str(tmpdir))
+    assert ret == (0, b'echo "$hi"\n')
 
-    assert parse_shebang.find_executable('rustup') is not None
-    rust.install_environment(prefix, '1.56.0', ())
-    with rust.in_env(prefix, '1.56.0'):
-        assert cmd_output('hello_world')[1] == 'Hello, world!\n'
+
+def test_run_lib_additional_dependencies(tmp_path):
+    _make_hello_world(tmp_path)
+
+    deps = ('shellharden:4.2.0', 'git-version')
+    ret = run_language(tmp_path, rust, 'hello_world', deps=deps)
+    assert ret == (0, b'Hello, world!\n')
+
+    bin_dir = tmp_path.joinpath('rustenv-system', 'bin')
+    assert bin_dir.is_dir()
+    assert not bin_dir.joinpath('shellharden').exists()
+    assert not bin_dir.joinpath('shellharden.exe').exists()
diff --git a/tests/repository_test.py b/tests/repository_test.py
index 85cf458..b43b344 100644
--- a/tests/repository_test.py
+++ b/tests/repository_test.py
@@ -17,10 +17,7 @@ from pre_commit.envcontext import envcontext
 from pre_commit.hook import Hook
 from pre_commit.languages import golang
 from pre_commit.languages import helpers
-from pre_commit.languages import node
 from pre_commit.languages import python
-from pre_commit.languages import ruby
-from pre_commit.languages import rust
 from pre_commit.languages.all import languages
 from pre_commit.prefix import Prefix
 from pre_commit.repository import _hook_installed
@@ -34,7 +31,6 @@ from testing.fixtures import modify_manifest
 from testing.util import cwd
 from testing.util import get_resource_path
 from testing.util import skipif_cant_run_docker
-from testing.util import xfailif_windows
 
 
 def _norm_out(b):
@@ -196,84 +192,6 @@ def test_run_a_docker_image_hook(tempdir_factory, store, hook_id):
     )
 
 
-def test_run_a_node_hook(tempdir_factory, store):
-    _test_hook_repo(
-        tempdir_factory, store, 'node_hooks_repo',
-        'foo', [os.devnull], b'Hello World\n',
-    )
-
-
-def test_run_a_node_hook_default_version(tempdir_factory, store):
-    # make sure that this continues to work for platforms where node is not
-    # installed at the system
-    with mock.patch.object(
-            node,
-            'get_default_version',
-            return_value=C.DEFAULT,
-    ):
-        test_run_a_node_hook(tempdir_factory, store)
-
-
-def test_run_versioned_node_hook(tempdir_factory, store):
-    _test_hook_repo(
-        tempdir_factory, store, 'node_versioned_hooks_repo',
-        'versioned-node-hook', [os.devnull], b'v9.3.0\nHello World\n',
-    )
-
-
-def test_node_hook_with_npm_userconfig_set(tempdir_factory, store, tmpdir):
-    cfg = tmpdir.join('cfg')
-    cfg.write('cache=/dne\n')
-    with mock.patch.dict(os.environ, NPM_CONFIG_USERCONFIG=str(cfg)):
-        test_run_a_node_hook(tempdir_factory, store)
-
-
-def test_run_a_ruby_hook(tempdir_factory, store):
-    _test_hook_repo(
-        tempdir_factory, store, 'ruby_hooks_repo',
-        'ruby_hook', [os.devnull], b'Hello world from a ruby hook\n',
-    )
-
-
-def test_run_a_ruby_hook_with_user_install_set(tempdir_factory, store, tmpdir):
-    gemrc = tmpdir.join('gemrc')
-    gemrc.write('gem: --user-install\n')
-    with envcontext((('GEMRC', str(gemrc)),)):
-        test_run_a_ruby_hook(tempdir_factory, store)
-
-
-@xfailif_windows  # pragma: win32 no cover
-def test_run_versioned_ruby_hook(tempdir_factory, store):
-    _test_hook_repo(
-        tempdir_factory, store, 'ruby_versioned_hooks_repo',
-        'ruby_hook',
-        [os.devnull],
-        b'3.2.0\nHello world from a ruby hook\n',
-    )
-
-
-@xfailif_windows  # pragma: win32 no cover
-def test_run_ruby_hook_with_disable_shared_gems(
-        tempdir_factory,
-        store,
-        tmpdir,
-):
-    """Make sure a Gemfile in the project doesn't interfere."""
-    tmpdir.join('Gemfile').write('gem "lol_hai"')
-    tmpdir.join('.bundle').mkdir()
-    tmpdir.join('.bundle', 'config').write(
-        'BUNDLE_DISABLE_SHARED_GEMS: true\n'
-        'BUNDLE_PATH: vendor/gem\n',
-    )
-    with cwd(tmpdir.strpath):
-        _test_hook_repo(
-            tempdir_factory, store, 'ruby_versioned_hooks_repo',
-            'ruby_hook',
-            [os.devnull],
-            b'3.2.0\nHello world from a ruby hook\n',
-        )
-
-
 def test_system_hook_with_spaces(tempdir_factory, store):
     _test_hook_repo(
         tempdir_factory, store, 'system_hook_with_spaces_repo',
@@ -367,54 +285,6 @@ func main() {
     assert _norm_out(out) == b'hello hello world\n'
 
 
-def test_rust_hook(tempdir_factory, store):
-    _test_hook_repo(
-        tempdir_factory, store, 'rust_hooks_repo',
-        'rust-hook', [], b'hello world\n',
-    )
-
-
-@pytest.mark.parametrize('dep', ('cli:shellharden:3.1.0', 'cli:shellharden'))
-def test_additional_rust_cli_dependencies_installed(
-        tempdir_factory, store, dep,
-):
-    path = make_repo(tempdir_factory, 'rust_hooks_repo')
-    config = make_config_from_repo(path)
-    # A small rust package with no dependencies.
-    config['hooks'][0]['additional_dependencies'] = [dep]
-    hook = _get_hook(config, store, 'rust-hook')
-    envdir = helpers.environment_dir(
-        hook.prefix,
-        rust.ENVIRONMENT_DIR,
-        'system',
-    )
-    binaries = os.listdir(os.path.join(envdir, 'bin'))
-    # normalize for windows
-    binaries = [os.path.splitext(binary)[0] for binary in binaries]
-    assert 'shellharden' in binaries
-
-
-def test_additional_rust_lib_dependencies_installed(
-        tempdir_factory, store,
-):
-    path = make_repo(tempdir_factory, 'rust_hooks_repo')
-    config = make_config_from_repo(path)
-    # A small rust package with no dependencies.
-    deps = ['shellharden:3.1.0', 'git-version']
-    config['hooks'][0]['additional_dependencies'] = deps
-    hook = _get_hook(config, store, 'rust-hook')
-    envdir = helpers.environment_dir(
-        hook.prefix,
-        rust.ENVIRONMENT_DIR,
-        'system',
-    )
-    binaries = os.listdir(os.path.join(envdir, 'bin'))
-    # normalize for windows
-    binaries = [os.path.splitext(binary)[0] for binary in binaries]
-    assert 'rust-hello-world' in binaries
-    assert 'shellharden' not in binaries
-
-
 def test_missing_executable(tempdir_factory, store):
     _test_hook_repo(
         tempdir_factory, store, 'not_found_exe',
@@ -579,27 +449,6 @@ def test_repository_state_compatibility(tempdir_factory, store, v):
     assert _hook_installed(hook) is True
 
 
-def test_additional_ruby_dependencies_installed(tempdir_factory, store):
-    path = make_repo(tempdir_factory, 'ruby_hooks_repo')
-    config = make_config_from_repo(path)
-    config['hooks'][0]['additional_dependencies'] = ['tins']
-    hook = _get_hook(config, store, 'ruby_hook')
-    with ruby.in_env(hook.prefix, hook.language_version):
-        output = cmd_output('gem', 'list', '--local')[1]
-        assert 'tins' in output
-
-
-def test_additional_node_dependencies_installed(tempdir_factory, store):
-    path = make_repo(tempdir_factory, 'node_hooks_repo')
-    config = make_config_from_repo(path)
-    # Careful to choose a small package that's not depped by npm
-    config['hooks'][0]['additional_dependencies'] = ['lodash']
-    hook = _get_hook(config, store, 'foo')
-    with node.in_env(hook.prefix, hook.language_version):
-        output = cmd_output('npm', 'ls', '-g')[1]
-        assert 'lodash' in output
-
-
 def test_additional_golang_dependencies_installed(
         tempdir_factory, store,
 ):
@@ -637,23 +486,6 @@ def test_local_golang_additional_dependencies(store):
     assert _norm_out(out) == b'Hello, Go examples!\n'
 
 
-def test_local_rust_additional_dependencies(store):
-    config = {
-        'repo': 'local',
-        'hooks': [{
-            'id': 'hello',
-            'name': 'hello',
-            'entry': 'hello',
-            'language': 'rust',
-            'additional_dependencies': ['cli:hello-cli:0.2.2'],
-        }],
-    }
-    hook = _get_hook(config, store, 'hello')
-    ret, out = _hook_run(hook, (), color=False)
-    assert ret == 0
-    assert _norm_out(out) == b'Hello World!\n'
-
-
 def test_fail_hooks(store):
     config = {
         'repo': 'local',