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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2020-03-24 21:59:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2020-03-24 21:59:15 +0000 |
commit | 63fad53303381388673073de580a32088a4ef0fe (patch) | |
tree | a2c5c329ee5e79a220fac7e079283235fecc0cda /tests/languages/helpers_test.py | |
parent | Initial commit. (diff) | |
download | pre-commit-63fad53303381388673073de580a32088a4ef0fe.tar.xz pre-commit-63fad53303381388673073de580a32088a4ef0fe.zip |
Adding upstream version 2.2.0.upstream/2.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/languages/helpers_test.py | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/tests/languages/helpers_test.py b/tests/languages/helpers_test.py new file mode 100644 index 0000000..c52e947 --- /dev/null +++ b/tests/languages/helpers_test.py @@ -0,0 +1,82 @@ +import multiprocessing +import os +import sys +from unittest import mock + +import pytest + +import pre_commit.constants as C +from pre_commit.languages import helpers +from pre_commit.prefix import Prefix +from pre_commit.util import CalledProcessError +from testing.auto_namedtuple import auto_namedtuple + + +def test_basic_get_default_version(): + assert helpers.basic_get_default_version() == C.DEFAULT + + +def test_basic_healthy(): + assert helpers.basic_healthy(Prefix('.'), 'default') is True + + +def test_failed_setup_command_does_not_unicode_error(): + script = ( + 'import sys\n' + "getattr(sys.stderr, 'buffer', sys.stderr).write(b'\\x81\\xfe')\n" + 'exit(1)\n' + ) + + # an assertion that this does not raise `UnicodeError` + with pytest.raises(CalledProcessError): + helpers.run_setup_cmd(Prefix('.'), (sys.executable, '-c', script)) + + +def test_assert_no_additional_deps(): + with pytest.raises(AssertionError) as excinfo: + helpers.assert_no_additional_deps('lang', ['hmmm']) + msg, = excinfo.value.args + assert msg == ( + 'For now, pre-commit does not support additional_dependencies for lang' + ) + + +SERIAL_FALSE = auto_namedtuple(require_serial=False) +SERIAL_TRUE = auto_namedtuple(require_serial=True) + + +def test_target_concurrency_normal(): + with mock.patch.object(multiprocessing, 'cpu_count', return_value=123): + with mock.patch.dict(os.environ, {}, clear=True): + assert helpers.target_concurrency(SERIAL_FALSE) == 123 + + +def test_target_concurrency_cpu_count_require_serial_true(): + with mock.patch.dict(os.environ, {}, clear=True): + assert helpers.target_concurrency(SERIAL_TRUE) == 1 + + +def test_target_concurrency_testing_env_var(): + with mock.patch.dict( + os.environ, {'PRE_COMMIT_NO_CONCURRENCY': '1'}, clear=True, + ): + assert helpers.target_concurrency(SERIAL_FALSE) == 1 + + +def test_target_concurrency_on_travis(): + with mock.patch.dict(os.environ, {'TRAVIS': '1'}, clear=True): + assert helpers.target_concurrency(SERIAL_FALSE) == 2 + + +def test_target_concurrency_cpu_count_not_implemented(): + with mock.patch.object( + multiprocessing, 'cpu_count', side_effect=NotImplementedError, + ): + with mock.patch.dict(os.environ, {}, clear=True): + assert helpers.target_concurrency(SERIAL_FALSE) == 1 + + +def test_shuffled_is_deterministic(): + seq = [str(i) for i in range(10)] + expected = ['3', '7', '8', '2', '4', '6', '5', '1', '0', '9'] + assert helpers._shuffled(seq) == expected |