feat(timer): add warnFromError function

Author: tt1991

src/logger/logger.js

@@ -49,6 +49,14 @@ class Logger {
     }, data));
   }
 
+  warnFromError(action, error, data = {}) {
+    this.warn(action, Object.assign({
+      error_name: error.name,
+      error_stack: this._shortenStackTrace(error),
+      error_message: error.message
+    }, data));
+  }
+
   timer() {
     return new Timer(this);
   }

src/logger/logger.spec.js

@@ -77,6 +77,22 @@ describe('Logger', function() {
     expect(logArguments.error_message).to.eql(error.message);
   });
 
+  it('should log error as warning with action', function() {
+    const error = new Error('failed');
+
+    logger.warnFromError('hi', error, { details: 'here' });
+
+    const logArguments = JSON.parse(console.log.args[0]);
+    expect(logArguments.name).to.eql('mongo');
+    expect(logArguments.action).to.eql('hi');
+    expect(logArguments.level).to.eql(40);
+    expect(logArguments.details).to.eql('here');
+
+    expect(logArguments.error_name).to.eql(error.name);
+    expect(logArguments.error_stack).to.eql(error.stack);
+    expect(logArguments.error_message).to.eql(error.message);
+  });
+
   describe('#configure', function() {
     it('should change format method', function() {
       const formattedOutput = '{"my":"method"}';

src/timer/timer.js

@@ -23,6 +23,14 @@ class Timer {
     );
   }
 
+  warnFromError(action, error, data = {}) {
+    this._logger.warnFromError(
+      action,
+      error,
+      Object.assign({ duration: this._duration() }, data)
+    );
+  }
+
   _duration() {
     const end = new Date().getTime();
 

src/timer/timer.spec.js

@@ -26,4 +26,16 @@ describe('Timer', function() {
 
     expect(errorStub).to.have.been. calledWith('time', error, { customer_id: 10, duration: 100 });
   });
+
+  it('should log elapsed time with error', function() {
+    const logger = new Logger('test', false);
+    const errorStub = this.sandbox.stub(logger, 'warnFromError');
+    const timer = new Timer(logger);
+    const error = new Error('intended');
+
+    this.clock.tick(100);
+    timer.warnFromError('time', error, { customer_id: 10 });
+
+    expect(errorStub).to.have.been. calledWith('time', error, { customer_id: 10, duration: 100 });
+  });
 });