Add mapping of test groups to test driver.

tools/run-tests.py

Index: tools/run-tests.py
diff --git a/tools/run-tests.py b/tools/run-tests.py
index e7c3f7ffd1796296bc3c7a30bb25fb52f212739a..7df0e5219c2825af64818dc9ea86a5e45b0131b4 100755
--- a/tools/run-tests.py
+++ b/tools/run-tests.py
@@ -28,6 +28,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
+from collections import OrderedDict
 import itertools
 import multiprocessing
 import optparse
@@ -54,6 +55,31 @@ DEFAULT_TESTS = ["mjsunit", "fuzz-natives", "base-unittests",
                  "cctest", "compiler-unittests", "heap-unittests",
                  "libplatform-unittests", "runtime-unittests",
                  "message", "preparser"]
+
+# Map of test name synonyms to lists of test suites. Should be ordered by
+# expected runtimes (suites with slow test cases first). These groups are
+# invoked in seperate steps on the bots.
+TEST_MAP = {
+  "default": [
+    "mjsunit",
+    "fuzz-natives",
+    "cctest",
+    "message",
+    "preparser",
+  ],
+  "optimize_for_size": [
+    "mjsunit",
+    "cctest",
+    "webkit",
+  ],
+  "unittests": [
+    "compiler-unittests",
+    "heap-unittests",
+    "base-unittests",
+    "libplatform-unittests",
+  ],
+}
+
 TIMEOUT_DEFAULT = 60
 TIMEOUT_SCALEFACTOR = {"debug"   : 4,
                        "release" : 1 }
@@ -379,14 +405,23 @@ def Main():
 
   suite_paths = utils.GetSuitePaths(join(workspace, "test"))
 
+  # Expand arguments with grouped tests. The args should reflect the list of
+  # suites as otherwise filters would break.
+  def ExpandTestGroups(name):
+    if name in TEST_MAP:
+      return [suite for suite in TEST_MAP[arg]]
+    else:
+      return [name]
+  args = reduce(lambda x, y: x + y,
+         [ExpandTestGroups(arg) for arg in args],
+         [])
+
   if len(args) == 0:
     suite_paths = [ s for s in DEFAULT_TESTS if s in suite_paths ]
   else:
-    args_suites = set()
+    args_suites = OrderedDict() # Used as set
     for arg in args:
-      suite = arg.split(os.path.sep)[0]
-      if not suite in args_suites:
-        args_suites.add(suite)
+      args_suites[arg.split(os.path.sep)[0]] = True
     suite_paths = [ s for s in args_suites if s in suite_paths ]
 
   suites = []