Added test case for response class

lib/response.js

@@ -7,6 +7,11 @@
 class Response {
 
 	send(data) {
+
+	    if (typeof data != 'string' && typeof data != 'object') {
+	        throw new Error("Cannot write anything except string or object")
+        }
+
 		if (typeof data === 'string') {
 			this.write(data)
 		}

test/response-test.js

@@ -0,0 +1,49 @@
+/*
+ * Celer - An HTTP framework
+ * Copyright(c) 2017-present @GavinDmello
+ * MIT Licensed
+ */
+
+//Requiring the dev-dependencies
+var chai = require('chai')
+var expect = chai.expect
+var assert =  chai.assert
+
+describe('checking response methods', () => {
+
+    const ResponseWrapper = require('../lib/response')
+    const responseWrapper = new ResponseWrapper()
+    responseWrapper.write = function(params) {}
+    responseWrapper.end = function(params) {}
+
+
+    it('with string param', (done) => {
+        try {
+            responseWrapper.send("Hello")
+        } catch (e) {
+            assert.fail("Error in response", "string param", e.toString())
+        }
+        done()
+    })
+
+    it('with object param', (done) => {
+        try {
+            responseWrapper.send({ a  : 1})
+        } catch (e) {
+            assert.fail("Error in response", "object param", e.toString())
+        }
+        done()
+    })
+
+    it('with number param', (done) => {
+        try {
+            responseWrapper.send(1)
+        } catch (e) {
+            done()
+            return
+        }
+        assert.fail("should fail before", "numbers are not allowed", "")
+
+    })
+
+})