[inspector] added inspector test runner [part 4]

test/inspector/testcfg.py

Index: test/inspector/testcfg.py
diff --git a/test/inspector/testcfg.py b/test/inspector/testcfg.py
new file mode 100644
index 0000000000000000000000000000000000000000..6995669a1592ee824cf447cadab2957ceab6665b
--- /dev/null
+++ b/test/inspector/testcfg.py
@@ -0,0 +1,109 @@
+# Copyright 2016 the V8 project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import itertools
+import os
+import re
+
+from testrunner.local import testsuite
+from testrunner.local import utils
+from testrunner.objects import testcase
+
+FLAGS_PATTERN = re.compile(r"//\s+Flags:(.*)")
+PROTOCOL_TEST_JS = "protocol-test.js"
+EXPECTED_SUFFIX = "-expected.txt"
+
+class InspectorProtocolTestSuite(testsuite.TestSuite):
+
+  def __init__(self, name, root):
+    super(InspectorProtocolTestSuite, self).__init__(name, root)
+
+  def ListTests(self, context):
+    tests = []
+    for dirname, dirs, files in os.walk(os.path.join(self.root), followlinks=True):
+      for dotted in [x for x in dirs if x.startswith('.')]:
+        dirs.remove(dotted)
+      dirs.sort()
+      files.sort()
+      for filename in files:
+        if filename.endswith(".js") and filename != PROTOCOL_TEST_JS:
+          fullpath = os.path.join(dirname, filename)
+          relpath = fullpath[len(self.root) + 1 : -3]
+          testname = relpath.replace(os.path.sep, "/")
+          test = testcase.TestCase(self, testname)
+          tests.append(test)
+    return tests
+
+  def GetFlagsForTestCase(self, testcase, context):
+    source = self.GetSourceForTest(testcase)
+    flags_match = re.findall(FLAGS_PATTERN, source)
+    flags = []
+    for match in flags_match:
+      flags += match.strip().split()
+    testname = testcase.path.split(os.path.sep)[-1]
+    testfilename = os.path.join(self.root, testcase.path + self.suffix())
+    protocoltestfilename = os.path.join(self.root, PROTOCOL_TEST_JS)
+    return [ protocoltestfilename, testfilename ] + flags
+
+  def GetSourceForTest(self, testcase):
+    filename = os.path.join(self.root, testcase.path + self.suffix())
+    with open(filename) as f:
+      return f.read()
+
+  def shell(self):
+    return "inspector-test"
+
+  def _IgnoreLine(self, string):
+    """Ignore empty lines, valgrind output and Android output."""
+    if not string: return True
+    return (string.startswith("==") or string.startswith("**") or
+            string.startswith("ANDROID") or
+            # FIXME(machenbach): The test driver shouldn't try to use slow
+            # asserts if they weren't compiled. This fails in optdebug=2.
+            string == "Warning: unknown flag --enable-slow-asserts." or
+            string == "Try --help for options")
+
+  def IsFailureOutput(self, testcase):
+    file_name = os.path.join(self.root, testcase.path) + EXPECTED_SUFFIX
+    with file(file_name, "r") as expected:
+      expected_lines = expected.readlines()
+
+    def ExpIterator():
+      for line in expected_lines:
+        if line.startswith("#") or not line.strip(): continue
+        yield line.strip()
+
+    def ActIterator(lines):
+      for line in lines:
+        if self._IgnoreLine(line.strip()): continue
+        yield line.strip()
+
+    def ActBlockIterator():
+      """Iterates over blocks of actual output lines."""
+      lines = testcase.output.stdout.splitlines()
+      start_index = 0
+      found_eqeq = False
+      for index, line in enumerate(lines):
+        # If a stress test separator is found:
+        if line.startswith("=="):
+          # Iterate over all lines before a separator except the first.
+          if not found_eqeq:
+            found_eqeq = True
+          else:
+            yield ActIterator(lines[start_index:index])
+          # The next block of output lines starts after the separator.
+          start_index = index + 1
+      # Iterate over complete output if no separator was found.
+      if not found_eqeq:
+        yield ActIterator(lines)
+
+    for act_iterator in ActBlockIterator():
+      for (expected, actual) in itertools.izip_longest(
+          ExpIterator(), act_iterator, fillvalue=''):
+        if expected != actual:
+          return True
+      return False
+
+def GetSuite(name, root):
+  return InspectorProtocolTestSuite(name, root)