Add WsException serialization

Author: csidell-earny

packages/websockets/errors/ws-exception.ts

@@ -9,4 +9,18 @@ export class WsException extends Error {
   public getError(): string | object {
     return this.error;
   }
+
+  private getErrorString(target) {
+    if(typeof target === 'string') {
+      return target;
+    }
+
+    return JSON.stringify(target);
+  }
+
+  public toString(): string {
+    const message = this.getErrorString(this.message);
+
+    return `Error: ${message}`;
+  }
 }

packages/websockets/test/exceptions/ws-exception.spec.ts

@@ -11,4 +11,10 @@ describe('WsException', () => {
   it('should returns error message or object', () => {
     expect(instance.getError()).to.be.eql(error);
   });
+
+  it('Should serialize', () => {
+    expect(`${instance}`.includes(error)).to.be.true;
+    const obj = {foo: 'bar'};
+    expect(`${new WsException(obj)}`.includes(JSON.stringify(obj))).to.be.true;
+  });
 });