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23 lines
773 B
23 lines
773 B
import os
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import sys
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import unittest
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try:
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from _testinternalcapi import perf_map_state_teardown, write_perf_map_entry
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except ImportError:
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raise unittest.SkipTest("requires _testinternalcapi")
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if sys.platform != 'linux':
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raise unittest.SkipTest('Linux only')
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class TestPerfMapWriting(unittest.TestCase):
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def test_write_perf_map_entry(self):
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self.assertEqual(write_perf_map_entry(0x1234, 5678, "entry1"), 0)
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self.assertEqual(write_perf_map_entry(0x2345, 6789, "entry2"), 0)
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with open(f"/tmp/perf-{os.getpid()}.map") as f:
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perf_file_contents = f.read()
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self.assertIn("1234 162e entry1", perf_file_contents)
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self.assertIn("2345 1a85 entry2", perf_file_contents)
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perf_map_state_teardown()
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