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96 lines
3.2 KiB
96 lines
3.2 KiB
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# Copyright 2019 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Unit tests for retrieving the LLVM hash."""
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from __future__ import print_function
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import subprocess
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import unittest
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import unittest.mock as mock
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import get_llvm_hash
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from get_llvm_hash import LLVMHash
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# We grab protected stuff from get_llvm_hash. That's OK.
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# pylint: disable=protected-access
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def MakeMockPopen(return_code):
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def MockPopen(*_args, **_kwargs):
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result = mock.MagicMock()
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result.returncode = return_code
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communicate_result = result.communicate.return_value
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# Communicate returns stdout, stderr.
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communicate_result.__iter__.return_value = (None, 'some stderr')
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return result
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return MockPopen
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class TestGetLLVMHash(unittest.TestCase):
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"""The LLVMHash test class."""
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@mock.patch.object(subprocess, 'Popen')
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def testCloneRepoSucceedsWhenGitSucceeds(self, popen_mock):
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popen_mock.side_effect = MakeMockPopen(return_code=0)
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llvm_hash = LLVMHash()
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into_tempdir = '/tmp/tmpTest'
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llvm_hash.CloneLLVMRepo(into_tempdir)
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popen_mock.assert_called_with(
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['git', 'clone', get_llvm_hash._LLVM_GIT_URL, into_tempdir],
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stderr=subprocess.PIPE)
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@mock.patch.object(subprocess, 'Popen')
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def testCloneRepoFailsWhenGitFails(self, popen_mock):
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popen_mock.side_effect = MakeMockPopen(return_code=1)
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with self.assertRaises(ValueError) as err:
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LLVMHash().CloneLLVMRepo('/tmp/tmp1')
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self.assertIn('Failed to clone', str(err.exception.args))
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self.assertIn('some stderr', str(err.exception.args))
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@mock.patch.object(get_llvm_hash, 'GetGitHashFrom')
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def testGetGitHashWorks(self, mock_get_git_hash):
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mock_get_git_hash.return_value = 'a13testhash2'
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self.assertEqual(
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get_llvm_hash.GetGitHashFrom('/tmp/tmpTest', 100), 'a13testhash2')
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mock_get_git_hash.assert_called_once()
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@mock.patch.object(LLVMHash, 'GetLLVMHash')
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@mock.patch.object(get_llvm_hash, 'GetGoogle3LLVMVersion')
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def testReturnGoogle3LLVMHash(self, mock_google3_llvm_version,
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mock_get_llvm_hash):
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mock_get_llvm_hash.return_value = 'a13testhash3'
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mock_google3_llvm_version.return_value = 1000
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self.assertEqual(LLVMHash().GetGoogle3LLVMHash(), 'a13testhash3')
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mock_get_llvm_hash.assert_called_once_with(1000)
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@mock.patch.object(LLVMHash, 'GetLLVMHash')
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@mock.patch.object(get_llvm_hash, 'GetGoogle3LLVMVersion')
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def testReturnGoogle3UnstableLLVMHash(self, mock_google3_llvm_version,
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mock_get_llvm_hash):
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mock_get_llvm_hash.return_value = 'a13testhash3'
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mock_google3_llvm_version.return_value = 1000
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self.assertEqual(LLVMHash().GetGoogle3UnstableLLVMHash(), 'a13testhash3')
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mock_get_llvm_hash.assert_called_once_with(1000)
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@mock.patch.object(subprocess, 'check_output')
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def testSuccessfullyGetGitHashFromToTOfLLVM(self, mock_check_output):
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mock_check_output.return_value = 'a123testhash1 path/to/main\n'
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self.assertEqual(LLVMHash().GetTopOfTrunkGitHash(), 'a123testhash1')
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mock_check_output.assert_called_once()
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if __name__ == '__main__':
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unittest.main()
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