Change serializer errors to use error codes (#4464)

* Change serializer errors to use error codes

Author: evaline-ju

lib/nodejs/serializer.js

@@ -131,7 +131,11 @@ class SerializableEvent {
    */
   constructor(eventName, originalValue, originalError) {
     if (!eventName) {
-      throw new Error('expected a non-empty `eventName` string argument');
+      throw createInvalidArgumentTypeError(
+        'Empty `eventName` string argument',
+        'eventName',
+        'string'
+      );
     }
     /**
      * The event name.
@@ -140,8 +144,10 @@ class SerializableEvent {
     this.eventName = eventName;
     const originalValueType = type(originalValue);
     if (originalValueType !== 'object' && originalValueType !== 'undefined') {
-      throw new Error(
-        `expected object, received [${originalValueType}]: ${originalValue}`
+      throw createInvalidArgumentTypeError(
+        `Expected object but received ${originalValueType}`,
+        'originalValue',
+        'object'
       );
     }
     /**

test/node-unit/serializer.spec.js

@@ -88,22 +88,18 @@ describe('serializer', function() {
   describe('SerializableEvent', function() {
     describe('constructor', function() {
       describe('when called without `eventName`', function() {
-        it('should throw', function() {
-          expect(
-            () => new SerializableEvent(),
-            'to throw',
-            /expected a non-empty `eventName`/
-          );
+        it('should throw "invalid arg value" error', function() {
+          expect(() => new SerializableEvent(), 'to throw', {
+            code: 'ERR_MOCHA_INVALID_ARG_TYPE'
+          });
         });
       });
 
       describe('when called with a non-object `rawObject`', function() {
-        it('should throw', function() {
-          expect(
-            () => new SerializableEvent('blub', 'glug'),
-            'to throw',
-            /expected object, received \[string\]/
-          );
+        it('should throw "invalid arg type" error', function() {
+          expect(() => new SerializableEvent('blub', 'glug'), 'to throw', {
+            code: 'ERR_MOCHA_INVALID_ARG_TYPE'
+          });
         });
       });
     });