Outputting chart json for disabled tests.

telemetry/telemetry/internal/results/chart_json_output_formatter.py

Index: telemetry/telemetry/internal/results/chart_json_output_formatter.py
diff --git a/telemetry/telemetry/internal/results/chart_json_output_formatter.py b/telemetry/telemetry/internal/results/chart_json_output_formatter.py
index 9d95415720f09c00b5cf8278aa65a449956f23f0..6a84be1c428d963fc22e8534b871133a184ed7aa 100644
--- a/telemetry/telemetry/internal/results/chart_json_output_formatter.py
+++ b/telemetry/telemetry/internal/results/chart_json_output_formatter.py
@@ -68,20 +68,47 @@ def ResultsAsChartDict(benchmark_metadata, page_specific_values,
     'trace_rerun_options': benchmark_metadata.rerun_options,
     'benchmark_metadata': benchmark_metadata.AsDict(),
     'charts': charts,
+    # Need to add this in for compatibility with disabled chartjson results.
+    'enabled': True
   }
 
   return result_dict
 
+
+def DisabledResultsDict(benchmark_name):
+  """Produces a dict for serialization to Chart JSON when a benchmark is
+    disabled.
+
+  Args:
+    benchmark_name: name of the disabled benchmark
+
+  Returns:
+    A Chart JSON dict corresponding to a disabled benchmark.
+  """
+  result_dict = {
+    'benchmark_name': benchmark_name,
+    'enabled': False
+  }
+
+  return result_dict
+
+
 # TODO(eakuefner): Transition this to translate Telemetry JSON.
 class ChartJsonOutputFormatter(output_formatter.OutputFormatter):
   def __init__(self, output_stream, benchmark_metadata):
     super(ChartJsonOutputFormatter, self).__init__(output_stream)
     self._benchmark_metadata = benchmark_metadata
 
+  def FormatDisabled(self):
+    self._Dump(DisabledResultsDict(self._benchmark_metadata.name))
+
   def Format(self, page_test_results):
-    json.dump(ResultsAsChartDict(
-        self._benchmark_metadata,
-        page_test_results.all_page_specific_values,
-        page_test_results.all_summary_values),
-              self.output_stream, indent=2)
+    self._Dump(ResultsAsChartDict(
+      self._benchmark_metadata,
+      page_test_results.all_page_specific_values,
+      page_test_results.all_summary_values))
+
+  def _Dump(self, results):
+    json.dump(results, self.output_stream, indent=2,
+      separators=(',', ': '))
     self.output_stream.write('\n')