Refactor mojo_benchmark.

mojo/devtools/common/devtoolslib/benchmark_unittest.py

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Tests for the logic that drives runs of the benchmarking mojo app and parses
+its output."""
+
+import imp
+import os.path
+import sys
+import unittest
+
+try:
+  imp.find_module("devtoolslib")
+except ImportError:
+  sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from devtoolslib import benchmark
+
+
+class BenchmarkTest(unittest.TestCase):
+  """Tests the benchmark module."""
+
+  def test_parse_measurement_results_empty(self):
+    """Tests parsing empty output."""
+    output = """"""
+    results = benchmark._parse_measurement_results(output)
+    self.assertEquals({}, results)
+
+  def test_parse_measurement_results_typical(self):
+    """Tests parsing typical output with unrelated log entries."""
+    output = """
+[INFO:network_fetcher.cc(322)] Caching mojo app http://127.0.0.1:31839/benchmark.mojo at /usr/local/google/home/user/.mojo_url_response_disk_cache/cache/4F6FAE752C7958AE122C6A2D778F2014C15578250B3C6746D54B99E4F15A4458/4F6FAE752C7958AE122C6A2D778F2014C15578250B3C6746D54B99E4F15A4458
+[INFO:network_fetcher.cc(322)] Caching mojo app http://127.0.0.1:31839/dart_traced_application.mojo at /usr/local/google/home/user/.mojo_url_response_disk_cache/cache/AB290478907A1DC5434CBCFD053BE2E74254D882644E76B3C28E3E7E1BCDCC3D/AB290478907A1DC5434CBCFD053BE2E74254D882644E76B3C28E3E7E1BCDCC3D
+Observatory listening on http://127.0.0.1:38128
+[1109/155613:WARNING:event.cc(234)] Ignoring incorrect complete event (no duration)
+measurement: time_until/a/b 42.5
+measurement: time_between/a/b/c/d 21.1
+measurement: time_between/a/b/e/f FAILED
+some measurements failed
+"""
+    results = benchmark._parse_measurement_results(output)
+    self.assertEquals({'time_until/a/b': 42.5,
+                       'time_between/a/b/c/d': 21.1}, results)