[test] Initial import of an emscripten test suite.

test/emscripten/testcfg.py

-# Copyright 2008 the V8 project authors. All rights reserved.
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-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-#       copyright notice, this list of conditions and the following
-#       disclaimer in the documentation and/or other materials provided
-#       with the distribution.
-#     * Neither the name of Google Inc. nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# Copyright 2015 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:(.*)")
 INVALID_FLAGS = ["--enable-slow-asserts"]
-MODULE_PATTERN = re.compile(r"^// MODULE$", flags=re.MULTILINE)
 
 
 class MessageTestSuite(testsuite.TestSuite):
   def __init__(self, name, root):
     super(MessageTestSuite, self).__init__(name, root)
 
   def ListTests(self, context):
     tests = []
     for dirname, dirs, files in os.walk(self.root):
       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"):
           testname = os.path.join(dirname[len(self.root) + 1:], filename[:-3])
           test = testcase.TestCase(self, testname)
           tests.append(test)
     return tests
 
   def GetFlagsForTestCase(self, testcase, context):
     source = self.GetSourceForTest(testcase)
     result = []
     flags_match = re.findall(FLAGS_PATTERN, source)
     for match in flags_match:
       result += match.strip().split()
     result += context.mode_flags
-    if MODULE_PATTERN.search(source):
-      result.append("--module")
     result = [x for x in result if x not in INVALID_FLAGS]
     result.append(os.path.join(self.root, testcase.path + ".js"))
     return testcase.flags + result
 
   def GetSourceForTest(self, testcase):
     filename = os.path.join(self.root, testcase.path + self.suffix())
     with open(filename) as f:
       return f.read()
 
   def _IgnoreLine(self, string):
-    """Ignore empty lines, valgrind output, Android output."""
-    if not string: return True
-    if not string.strip(): return True
+    """Ignore valgrind, NaCl and Android output."""
     return (string.startswith("==") or string.startswith("**") or
             string.startswith("ANDROID") or
             # These five patterns appear in normal Native Client output.
             string.startswith("DEBUG MODE ENABLED") or
             string.startswith("tools/nacl-run.py") or
             string.find("BYPASSING ALL ACL CHECKS") > 0 or
             string.find("Native Client module will be loaded") > 0 or
             string.find("NaClHostDescOpen:") > 0)
 
   def IsFailureOutput(self, output, testpath):
     expected_path = os.path.join(self.root, testpath + ".out")
     expected_lines = []
     # Can't use utils.ReadLinesFrom() here because it strips whitespace.
-    with open(expected_path) as f:
-      for line in f:
-        if line.startswith("#") or not line.strip(): continue
-        expected_lines.append(line)
+    with open(expected_path) as expected:
+      expected_lines = expected.read().splitlines()
     raw_lines = output.stdout.splitlines()
     actual_lines = [ s for s in raw_lines if not self._IgnoreLine(s) ]
     env = { "basename": os.path.basename(testpath + ".js") }
     if len(expected_lines) != len(actual_lines):
       return True
     for (expected, actual) in itertools.izip_longest(
         expected_lines, actual_lines, fillvalue=''):
-      pattern = re.escape(expected.rstrip() % env)
-      pattern = pattern.replace("\\*", ".*")
-      pattern = "^%s$" % pattern
-      if not re.match(pattern, actual):
+      if expected != actual:
         return True
     return False
 
   def StripOutputForTransmit(self, testcase):
     pass
 
 
 def GetSuite(name, root):
   return MessageTestSuite(name, root)