Let test driver export json results.

tools/testrunner/local/progress.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
 #       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.
 
 
+import json
+import os
 import sys
 import time
 
 from . import junit_output
 
+
+ABS_PATH_PREFIX = os.getcwd() + os.sep
+
+
 def EscapeCommand(command):
   parts = []
   for part in command:
     if ' ' in part:
       # Escape spaces.  We may need to escape more characters for this
       # to work properly.
       parts.append('"%s"' % part)
     else:
       parts.append(part)
   return " ".join(parts)
@@ skipping 226 matching lines @@
       if test.output.HasCrashed():
         fail_text += "exit code: %d\n--- CRASHED ---" % test.output.exit_code
       if test.output.HasTimedOut():
         fail_text += "--- TIMEOUT ---"
     self.outputter.HasRunTest(
         [test.GetLabel()] + self.runner.context.mode_flags + test.flags,
         test.duration,
         fail_text)
 
 
+class JsonTestProgressIndicator(ProgressIndicator):
+
+  def __init__(self, progress_indicator, json_test_results, arch, mode):
+    self.progress_indicator = progress_indicator
+    self.json_test_results = json_test_results
+    self.arch = arch
+    self.mode = mode
+    self.results = []
+
+  def Starting(self):
+    self.progress_indicator.runner = self.runner
+    self.progress_indicator.Starting()
+
+  def Done(self):
+    self.progress_indicator.Done()
+    complete_results = []
+    if os.path.exists(self.json_test_results):
+      with open(self.json_test_results, "r") as f:
+        # Buildbot might start out with an empty file.
+        complete_results = json.loads(f.read() or "[]")
+
+    complete_results.append({
+      "arch": self.arch,
+      "mode": self.mode,
+      "results": self.results,
+    })
+
+    with open(self.json_test_results, "w") as f:
+      f.write(json.dumps(complete_results))
+
+  def AboutToRun(self, test):
+    self.progress_indicator.AboutToRun(test)
+
+  def HasRun(self, test, has_unexpected_output):
+    self.progress_indicator.HasRun(test, has_unexpected_output)
+    if not has_unexpected_output:
+      return
+    self.results.append({
+      "name": test.GetLabel(),
+      "flags": test.flags,
+      "command": EscapeCommand(self.runner.GetCommand(test)).replace(
+          ABS_PATH_PREFIX, ""),
+      "stdout": test.output.stdout,
+      "stderr": test.output.stderr,
+      "exit_code": test.output.exit_code,
+      "result": "CRASH" if test.output.HasCrashed() else "FAIL",
+    })
+
+
 PROGRESS_INDICATORS = {
   'verbose': VerboseProgressIndicator,
   'dots': DotsProgressIndicator,
   'color': ColorProgressIndicator,
   'mono': MonochromeProgressIndicator
 }