text: #!/usr/bin/env python
  # Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
  import sys
  import os
  import unittest
  import benchmark
  from test_util import DenoTestCase, run_tests
  
  
  class TestBenchmark(DenoTestCase):
      def test_strace_parse(self):
          with open(
                  os.path.join(sys.path[0], "testdata/strace_summary.out"),
                  "r") as f:
              summary = benchmark.strace_parse(f.read())
              # first syscall line
              assert summary["munmap"]["calls"] == 60
              assert summary["munmap"]["errors"] == 0
              # line with errors
              assert summary["mkdir"]["errors"] == 2
              # last syscall line
              assert summary["prlimit64"]["calls"] == 2
              assert summary["prlimit64"]["% time"] == 0
              # summary line
              assert summary["total"]["calls"] == 704
  
      def test_strace_parse2(self):
          with open(
                  os.path.join(sys.path[0], "testdata/strace_summary2.out"),
                  "r") as f:
              summary = benchmark.strace_parse(f.read())
              # first syscall line
              assert summary["futex"]["calls"] == 449
              assert summary["futex"]["errors"] == 94
              # summary line
              assert summary["total"]["calls"] == 821
  
      def test_max_mem_parse(self):
          with open(os.path.join(sys.path[0], "testdata/time.out"), "r") as f:
              data = f.read()
              assert benchmark.find_max_mem_in_bytes(data) == 120380 * 1024
  
      def test_binary_size(self):
          binary_size_dict = benchmark.get_binary_sizes(self.build_dir)
          assert binary_size_dict["deno"] > 0
          assert binary_size_dict["CLI_SNAPSHOT.js"] > 0
          assert binary_size_dict["CLI_SNAPSHOT.js.map"] > 0
          assert binary_size_dict["CLI_SNAPSHOT.bin"] > 0
  
      @unittest.skipIf("linux" not in sys.platform,
                       "strace only supported on linux")
      def test_strace(self):
          new_data = {}
          benchmark.run_strace_benchmarks(self.deno_exe, new_data)
          assert "thread_count" in new_data
          assert "syscall_count" in new_data
  
          s = new_data["thread_count"]
          assert "hello" in s
          assert s["hello"] > 1
  
          s = new_data["syscall_count"]
          assert "hello" in s
          assert s["hello"] > 1
  
  
  if __name__ == '__main__':
      # FIME this doesn't appear to be the case.
      # This test assumes tools/http_server.py is running in the background.
      run_tests()
  