1  import os
       2  import sys
       3  import unittest
       4  
       5  from _testinternalcapi import perf_map_state_teardown, write_perf_map_entry
       6  
       7  if sys.platform != 'linux':
       8      raise unittest.SkipTest('Linux only')
       9  
      10  
      11  class ESC[4;38;5;81mTestPerfMapWriting(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
      12      def test_write_perf_map_entry(self):
      13          self.assertEqual(write_perf_map_entry(0x1234, 5678, "entry1"), 0)
      14          self.assertEqual(write_perf_map_entry(0x2345, 6789, "entry2"), 0)
      15          with open(f"/tmp/perf-{os.getpid()}.map") as f:
      16              perf_file_contents = f.read()
      17              self.assertIn("1234 162e entry1", perf_file_contents)
      18              self.assertIn("2345 1a85 entry2", perf_file_contents)
      19          perf_map_state_teardown()