Qinusty pushed to branch Qinusty/unit-test-utils at BuildStream / buildstream
Commits:
-
aa795b2f
by Josh Smith at 2018-09-19T09:22:14Z
2 changed files:
Changes:
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+from contextlib import contextmanager
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+import os
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+ |
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+ |
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+# MockAttributeResult
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+#
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+# A class to take a dictionary of kwargs and make them accessible via
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+# attributes of the object.
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+#
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+class MockAttributeResult(dict):
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+ __getattr__ = dict.get
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+ |
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+ |
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+# mock_statvfs():
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+#
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+# Gets a function which mocks statvfs and returns a statvfs result with the kwargs accessible.
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+#
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+# Returns:
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+# func(path) -> object: object will have all the kwargs accessible via object.kwarg
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+#
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+# Example:
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+# statvfs = mock_statvfs(f_blocks=10)
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+# result = statvfs("regardless/of/path")
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+# assert result.f_blocks == 10 # True
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+def mock_statvfs(**kwargs):
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+ def statvfs(path):
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+ return MockAttributeResult(kwargs)
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+ return statvfs
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+ |
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+ |
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+# monkey_patch()
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+#
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+# with monkey_patch("statvfs", custom_statvfs):
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+# assert os.statvfs == custom_statvfs # True
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+# assert os.statvfs == custom_statvfs # False
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+#
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+@contextmanager
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+def monkey_patch(to_patch, patched_func):
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+ orig = getattr(os, to_patch)
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+ setattr(os, to_patch, patched_func)
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+ try:
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+ yield
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+ finally:
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+ setattr(os, to_patch, orig)
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+from buildstream import _yaml
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+from ..testutils import mock_os
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+from ..testutils.runcli import cli
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+ |
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+import os
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+import pytest
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+ |
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+ |
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+KiB = 1024
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+MiB = (KiB * 1024)
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+GiB = (MiB * 1024)
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+TiB = (GiB * 1024)
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+ |
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+ |
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+def test_parse_size_over_1024T(cli, tmpdir):
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+ BLOCK_SIZE = 4096
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+ cli.configure({
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+ 'cache': {
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+ 'quota': 2048 * TiB
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+ }
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+ })
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+ project = tmpdir.join("main")
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+ os.makedirs(str(project))
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+ _yaml.dump({'name': 'main'}, str(project.join("project.conf")))
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+ |
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+ bavail = (1025 * TiB) / BLOCK_SIZE
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+ patched_statvfs = mock_os.mock_statvfs(f_bavail=bavail, f_bsize=BLOCK_SIZE)
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+ with mock_os.monkey_patch("statvfs", patched_statvfs):
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+ result = cli.run(project, args=["build", "file.bst"])
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+ assert "1025T of available system storage" in result.stderr
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