[test] More robust perf runner with profiler option.

tools/unittests/run_perf_test.py

Index: tools/unittests/run_perf_test.py
diff --git a/tools/unittests/run_perf_test.py b/tools/unittests/run_perf_test.py
index f3e5aff49f60988475cc45ec7da0d27b524509da..1a4d73857ab609a68cd92153069bf078cf909bf3 100644
--- a/tools/unittests/run_perf_test.py
+++ b/tools/unittests/run_perf_test.py
@@ -10,7 +10,9 @@ from mock import DEFAULT
 from mock import MagicMock
 import os
 from os import path, sys
+import platform
 import shutil
+import subprocess
 import tempfile
 import unittest
 
@@ -129,6 +131,9 @@ class PerfTest(unittest.TestCase):
       self.assertEquals(dirs.pop(), args[0])
     os.chdir = MagicMock(side_effect=chdir)
 
+    subprocess.check_call = MagicMock()
+    platform.system = MagicMock(return_value='Linux')
+
   def _CallMain(self, *args):
     self._test_output = path.join(TEST_WORKSPACE, "results.json")
     all_args=[
@@ -448,6 +453,19 @@ class PerfTest(unittest.TestCase):
         (path.join("out-no-patch", "x64.release", "d7"), "--flag", "run.js"),
     )
 
+  def testWrongBinaryWithProf(self):
+    test_input = dict(V8_JSON)
+    self._WriteTestInput(test_input)
+    self._MockCommand(["."], ["x\nRichards: 1.234\nDeltaBlue: 10657567\ny\n"])
+    self.assertEquals(0, self._CallMain("--extra-flags=--prof"))

[Michael Achenbach, 2015/09/15 07:59:01]

This is all c/p - the difference in this test is the extra-flags parameter.

+    self._VerifyResults("test", "score", [
+      {"name": "Richards", "results": ["1.234"], "stddev": ""},
+      {"name": "DeltaBlue", "results": ["10657567.0"], "stddev": ""},
+    ])
+    self._VerifyErrors([])
+    self._VerifyMock(path.join("out", "x64.release", "d7"),
+                     "--flag", "--prof", "run.js")
+
   def testUnzip(self):
     def Gen():
       for i in [1, 2, 3]: