Fix Cannot convert undefined or null to object when using default parser

Fixes: runtimes/automation/issues/634

Signed-off-by: Lan Xia <[email protected]>

Author: llxia

TestResultSummaryService/BuildProcessor.js

@@ -176,7 +176,9 @@ class BuildProcessor {
                 });
             } catch (e) {
                 logger.warn(
-                    `BuildProcessor: processBuild(): Exception: ${e.toString()}`
+                    `BuildProcessor: processBuild(): Exception: ${e.toString()} ${
+                        e.stack
+                    }`
                 );
                 task.error = e.toString();
                 await new DataManager().updateBuild(task);

TestResultSummaryService/DataManager.js

@@ -36,7 +36,7 @@ class DataManager {
         });
         if (results.length === 0) {
             const parser = new DefaultParser();
-            results = await parser.parse(output);
+            results = [await parser.parse(output)];
         }
         return Object.assign.apply({}, results);
     }