Catch Ruby error while TestUp runs the unit tests and dump it to a lo…

…g file.

README.md

@@ -131,6 +131,11 @@ Output: C:\Users\Thomas\SourceTree\TestUp2\tests\results.json
 # Overriding where the .log files from a test run will be saved.
 LogPath: C:\Users\Thomas\SourceTree\TestUp2\logs
 
+# Optional:
+# Path to a .log file that will be used if TestUp itself runs into any errors
+# while running the tests.
+ErrorLogPath: C:\Users\Thomas\SourceTree\TestUp2\testup_errors.log
+
 # Optional:
 # Overriding where the .run files from a test run will be saved.
 SavedRunsPath: C:\Users\Thomas\SourceTree\TestUp2\logs

src/testup/app.rb

@@ -28,7 +28,17 @@ def self.process_arguments
     # @param [Hash] config
     def self.ci_run(test_suite, config = {})
       Execution.delay(1.0) do
-        API.run_suite_without_gui(test_suite, config)
+        begin
+          API.run_suite_without_gui(test_suite, config)
+        rescue Exception => error
+          # Ensure we log the error to a file so the CI system can log it.
+          if config['ErrorLogPath']
+            File.open(config['ErrorLogPath'], 'w') { |file|
+              file.puts(error.inspect)
+              file.puts(error.backtrace.join("\n"))
+            }
+          end
+        end
         self.quit unless config['KeepOpen']
       end
     end