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#!/usr/bin/env python3
# Copyright 2023 The ChromiumOS Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Tests for pgo_tools."""
from pathlib import Path
import textwrap
import unittest
from unittest import mock
import pgo_tools
class Test(unittest.TestCase):
"""Tests for pgo_tools."""
@mock.patch.object(pgo_tools, "run")
def test_pgo_generate_checking_works(self, mock_run):
equery_u_output = textwrap.dedent(
"""\
[ Legend : U - final flag setting for installation]
[ : I - package is installed with flag ]
[ Colors : set, unset ]
* Found these USE flags for sys-devel/llvm:
U I
- - llvm-next_pgo_use : <unknown>
- - llvm-tot : <unknown>
- + llvm_pgo_generate : <unknown>
+ - llvm_pgo_use : <unknown>
"""
)
mock_run.return_value.stdout = equery_u_output
self.assertTrue(pgo_tools.installed_llvm_has_pgo_generate_enabled())
mock_run.assert_called_once()
mock_run.return_value.stdout = equery_u_output.replace(
"+ llvm_pgo_generate", "- llvm_pgo_generate"
)
self.assertFalse(pgo_tools.installed_llvm_has_pgo_generate_enabled())
@mock.patch.object(pgo_tools, "run")
def test_pgo_generate_checking_raises_on_zero_pgo_updates(self, mock_run):
mock_run.return_value.stdout = textwrap.dedent(
"""\
[ Legend : U - final flag setting for installation]
- - llvm-next_pgo_use : <unknown>
- - llvm-tot : <unknown>
+ - llvm_pgo_use : <unknown>
"""
)
with self.assertRaisesRegex(ValueError, "^No llvm_pgo_generate"):
pgo_tools.installed_llvm_has_pgo_generate_enabled()
@mock.patch.object(pgo_tools, "run")
def test_pgo_generate_checking_raises_on_many_pgo_updates(self, mock_run):
mock_run.return_value.stdout = textwrap.dedent(
"""\
[ Legend : U - final flag setting for installation]
- - llvm-next_pgo_use : <unknown>
- - llvm-tot : <unknown>
- + llvm_pgo_generate : <unknown>
- + llvm_pgo_generate : <unknown>
+ - llvm_pgo_use : <unknown>
"""
)
with self.assertRaisesRegex(ValueError, "^Multiple llvm_pgo_generate"):
pgo_tools.installed_llvm_has_pgo_generate_enabled()
@mock.patch.object(pgo_tools, "run")
def test_pgo_generate_ignores_nonexact_use_flags(self, mock_run):
mock_run.return_value.stdout = textwrap.dedent(
"""\
[ Legend : U - final flag setting for installation]
- - llvm-next_pgo_use : <unknown>
- - llvm-tot : <unknown>
- + llvm_pgo_generate : <unknown>
- - llvm_pgo_generate2 : <unknown>
- - 2llvm_pgo_generate : <unknown>
+ - llvm_pgo_use : <unknown>
"""
)
self.assertTrue(pgo_tools.installed_llvm_has_pgo_generate_enabled())
def test_quickpkg_restoration_works(self):
self.assertEqual(
pgo_tools.generate_quickpkg_restoration_command(
Path("/path/to/sys-devel/llvm-1234-r1.tbz2")
),
["sudo", "emerge", "--usepkgonly", "=sys-devel/llvm-1234-r1"],
)
def test_temporary_file_creation_works(self):
with pgo_tools.temporary_file("foo_bar_") as tmp:
self.assertTrue(tmp.name.startswith("foo_bar_"), tmp.name)
self.assertTrue(tmp.exists())
self.assertFalse(tmp.exists())
def test_temporary_file_deletion_is_fine_if_file_does_not_exist(self):
# This test ensures this `with`'s `__exit__` block doesn't `raise`.
with pgo_tools.temporary_file("foo_bar_") as tmp:
tmp.unlink()
if __name__ == "__main__":
unittest.main()
|
