[test] Let test runner only use exact matches of tests on the cmd-line.

tools/testrunner/local/testsuite.py

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # 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
@@ skipping 157 matching lines @@
       return
 
     for rule in self.rules:
       if rule not in used_rules:
         print("Unused rule: %s -> %s" % (rule, self.rules[rule]))
     for rule in self.wildcards:
       if rule not in used_rules:
         print("Unused rule: %s -> %s" % (rule, self.wildcards[rule]))
 
   def FilterTestCasesByArgs(self, args):
+    """Filter test cases based on command-line arguments.
+
+    An argument with an asterisc in the end will match all test cases

[Jakob Kummerow, 2015/07/23 12:55:46]

nit: "asterisk" is the more common spelling

[Michael Achenbach, 2015/07/23 12:59:21]

Done.

+    that have the argument as a prefix. Without asterisc, only exact matches
+    will be used with the exeption of the test-suite name as argument.
+    """
     filtered = []
-    filtered_args = []
+    globs = []
+    exact_matches = []
     for a in args:
       argpath = a.split(os.path.sep)
       if argpath[0] != self.name:
         continue
       if len(argpath) == 1 or (len(argpath) == 2 and argpath[1] == '*'):
         return  # Don't filter, run all tests in this suite.
       path = os.path.sep.join(argpath[1:])
       if path[-1] == '*':
         path = path[:-1]
-      filtered_args.append(path)
+        globs.append(path)
+      else:
+        exact_matches.append(path)
     for t in self.tests:
-      for a in filtered_args:
+      for a in globs:
         if t.path.startswith(a):
           filtered.append(t)
           break
+      for a in exact_matches:
+        if t.path == a:
+          filtered.append(t)
+          break
     self.tests = filtered
 
   def GetFlagsForTestCase(self, testcase, context):
     raise NotImplementedError
 
   def GetSourceForTest(self, testcase):
     return "(no source available)"
 
   def IsFailureOutput(self, output, testpath):
     return output.exit_code != 0
@@ skipping 65 matching lines @@
     return (testcase.flags + ["--gtest_filter=" + testcase.path] +
             ["--gtest_random_seed=%s" % context.random_seed] +
             ["--gtest_print_time=0"] +
             context.mode_flags)
 
   def VariantFlags(self, testcase, default_flags):
     return [[]]
 
   def shell(self):
     return self.name