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Tests can be run with ``` bazel test //swift/codegen:tests ``` Coverage can be checked installing `pytest-cov` and running ``` pytest --cov=swift/codegen swift/codegen/test ```
80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
import sys
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from unittest import mock
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import pytest
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from swift.codegen.lib import paths
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from swift.codegen.lib import render
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@pytest.fixture
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def pystache_renderer_cls():
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with mock.patch("pystache.Renderer") as ret:
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yield ret
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@pytest.fixture
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def pystache_renderer(pystache_renderer_cls):
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ret = mock.Mock()
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pystache_renderer_cls.side_effect = (ret,)
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return ret
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@pytest.fixture
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def sut(pystache_renderer):
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return render.Renderer()
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def test_constructor(pystache_renderer_cls, sut):
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pystache_init, = pystache_renderer_cls.mock_calls
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assert set(pystache_init.kwargs) == {'search_dirs', 'escape'}
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assert pystache_init.kwargs['search_dirs'] == str(paths.templates_dir)
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an_object = object()
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assert pystache_init.kwargs['escape'](an_object) is an_object
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assert sut.written == set()
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def test_render(pystache_renderer, sut):
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data = mock.Mock()
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output = mock.Mock()
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with mock.patch("builtins.open", mock.mock_open()) as output_stream:
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sut.render(data, output)
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assert pystache_renderer.mock_calls == [
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mock.call.render_name(data.template, data, generator=paths.exe_file),
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], pystache_renderer.mock_calls
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assert output_stream.mock_calls == [
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mock.call(output, 'w'),
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mock.call().__enter__(),
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mock.call().write(pystache_renderer.render_name.return_value),
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mock.call().__exit__(None, None, None),
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]
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assert sut.written == {output}
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def test_written(sut):
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data = [mock.Mock() for _ in range(4)]
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output = [mock.Mock() for _ in data]
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with mock.patch("builtins.open", mock.mock_open()) as output_stream:
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for d, o in zip(data, output):
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sut.render(d, o)
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assert sut.written == set(output)
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def test_cleanup(sut):
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data = [mock.Mock() for _ in range(4)]
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output = [mock.Mock() for _ in data]
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with mock.patch("builtins.open", mock.mock_open()) as output_stream:
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for d, o in zip(data, output):
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sut.render(d, o)
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expected_erased = [mock.Mock() for _ in range(3)]
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existing = set(expected_erased + output[2:])
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sut.cleanup(existing)
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for f in expected_erased:
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assert f.mock_calls == [mock.call.unlink(missing_ok=True)]
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for f in output:
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assert f.unlink.mock_calls == []
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if __name__ == '__main__':
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sys.exit(pytest.main())
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