[test] Add status-file presubmit check.

This loads all test suites and status files to catch subtle
syntax errors. It also checks basic status file integrity
and common mistakes.

NOTRY=true

Review URL: https://codereview.chromium.org/1475663002

Cr-Commit-Position: refs/heads/master@{#32271}

PRESUBMIT.py

@@ -69,6 +69,7 @@ def _V8PresubmitChecks(input_api, output_api):
   from presubmit import SourceProcessor
   from presubmit import CheckExternalReferenceRegistration
   from presubmit import CheckAuthorizedAuthor
+  from presubmit import CheckStatusFiles
 
   results = []
   if not CppLintProcessor().Run(input_api.PresubmitLocalPath()):
@@ -80,6 +81,8 @@ def _V8PresubmitChecks(input_api, output_api):
   if not CheckExternalReferenceRegistration(input_api.PresubmitLocalPath()):
     results.append(output_api.PresubmitError(
         "External references registration check failed"))
+  if not CheckStatusFiles(input_api.PresubmitLocalPath()):
+    results.append(output_api.PresubmitError("Status file check failed"))
   results.extend(CheckAuthorizedAuthor(input_api, output_api))
   return results
 

tools/presubmit.py

@@ -45,6 +45,10 @@ import subprocess
 import multiprocessing
 from subprocess import PIPE
 
+from testrunner.local import statusfile
+from testrunner.local import testsuite
+from testrunner.local import utils
+
 # Special LINT rules diverging from default and reason.
 # build/header_guard: Our guards have the form "V8_FOO_H_", not "SRC_FOO_H_".
 # build/include_what_you_use: Started giving false positives for variables
@@ -403,6 +407,17 @@ def CheckExternalReferenceRegistration(workspace):
       [sys.executable, join(workspace, "tools", "external-reference-check.py")])
   return code == 0
 
+def CheckStatusFiles(workspace):
+  suite_paths = utils.GetSuitePaths(join(workspace, "test"))
+  for root in suite_paths:
+    suite_path = join(workspace, "test", root)
+    status_file_path = join(suite_path, root + ".status")
+    suite = testsuite.TestSuite.LoadTestSuite(suite_path)
+    if suite and exists(status_file_path):
+      if not statusfile.PresubmitCheck(status_file_path):
+        return False
+  return True
+
 def CheckAuthorizedAuthor(input_api, output_api):
   """For non-googler/chromites committers, verify the author's email address is
   in AUTHORS.
@@ -450,6 +465,7 @@ def Main():
         "two empty lines between declarations check..."
   success = SourceProcessor().Run(workspace) and success
   success = CheckExternalReferenceRegistration(workspace) and success
+  success = CheckStatusFiles(workspace) and success
   if success:
     return 0
   else:

tools/testrunner/local/statusfile.py

@@ -25,6 +25,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import os
 
 # These outcomes can occur in a TestCase's outcomes list:
 SKIP = "SKIP"
@@ -125,10 +126,14 @@ def _ParseOutcomeList(rule, outcomes, target_dict, variables):
     target_dict[rule] = result
 
 
-def ReadStatusFile(path, variables):
+def ReadContent(path):
   with open(path) as f:
     global KEYWORDS
-    contents = eval(f.read(), KEYWORDS)
+    return eval(f.read(), KEYWORDS)
+
+
+def ReadStatusFile(path, variables):
+  contents = ReadContent(path)
 
   rules = {}
   wildcards = {}
@@ -146,3 +151,25 @@ def ReadStatusFile(path, variables):
       else:
         _ParseOutcomeList(rule, section[rule], rules, variables)
   return rules, wildcards
+
+
+def PresubmitCheck(path):
+  contents = ReadContent(path)
+  root_prefix = os.path.basename(os.path.dirname(path)) + "/"
+
+  try:
+    for section in contents:
+      assert type(section) == list
+      assert len(section) == 2
+      section = section[1]
+      assert type(section) == dict
+      for rule in section:
+        assert type(rule) == str
+        assert not rule.startswith(root_prefix), (
+            "Suite name prefix must not be used in status files")
+        assert not rule.endswith('.js'), (
+            ".js extension must not be used in status files.")
+    return True
+  except Exception as e:
+    print e
+    return False