added tests for serverunarydecorator

__tests__/callFactories/callDecorators/clientUnaryDecorator.js

@@ -0,0 +1,17 @@
+const object = {};
+const originalCall = {
+  hello: "hello"
+};
+const clientUnaryDecorator = require("../../../lib/callFactories/callDecorators/clientUnaryDecorator");
+
+describe("Client unary decorator tests.", () => {
+  describe("decorator adds the right methods", () => {
+    //adds properties
+    beforeEach(() => {
+      clientUnaryDecorator(object, originalCall);
+    });
+    it("Has an on property", () => {
+      expect(object.hasOwnProperty("on")).toBeTruthy();
+    });
+  });
+});

__tests__/callFactories/callDecorators/serverStreamDecorator.js

@@ -0,0 +1,17 @@
+const object = {};
+const originalCall = {
+  hello: "hello"
+};
+const clientUnaryDecorator = require("../../../lib/callFactories/callDecorators/clientUnaryDecorator");
+
+describe("Client unary decorator tests.", () => {
+  describe("decorator adds the right methods", () => {
+    //adds properties
+    beforeEach(() => {
+      clientUnaryDecorator(object, originalCall);
+    });
+    it("Has an on property", () => {
+      expect(object.hasOwnProperty("on")).toBeTruthy();
+    });
+  });
+});

__tests__/callFactories/callDecorators/serverUnaryDecorator.js

@@ -0,0 +1,23 @@
+const object = {};
+const originalCall = {
+  hello: "hello"
+};
+const serverUnaryDecorator = require("../../../lib/callFactories/callDecorators/serverUnaryDecorator");
+
+describe("Server unary decorator tests.", () => {
+  describe("decorator adds the right methods", () => {
+    //adds properties
+    beforeEach(() => {
+      serverUnaryDecorator(object, originalCall);
+    });
+    it("Has an on property", () => {
+      expect(object.hasOwnProperty("set")).toBeTruthy();
+    });
+    it("Has a catch property", () => {
+      expect(object.hasOwnProperty("send")).toBeTruthy();
+    });
+    it("Has a throw property", () => {
+      expect(object.hasOwnProperty("throw")).toBeTruthy();
+    });
+  });
+});