Created tests for ride-hailing/NeedParams using jest.

closes #22

src/ride-hailing/NeedParams.test.ts

@@ -0,0 +1,53 @@
+import NeedParams from './NeedParams';
+
+describe('NeedParams class', () => {
+    const needParams = new NeedParams({
+        pickupLocation: {
+            lat: 32.050382,
+            long: 34.766149,
+        },
+        location: {
+            lat: 32.050382,
+            long: 34.766149,
+        },
+        destinationLocation: {
+            lat: 32.050782,
+            long: 34.768149,
+        },
+    });
+    needParams.id = 'TOPIC_ID';
+    needParams.davId = 'davId';
+    const serializedNeedParams: any = {
+        ttl: undefined,
+        protocol: 'ride_hailing',
+        type: 'need',
+        id: 'TOPIC_ID',
+        pickupLocation: {
+            lat: 32.050382,
+            long: 34.766149,
+        },
+        location: {
+            latitude: 32.050382,
+            longitude: 34.766149,
+        },
+        destinationLocation: {
+            lat: 32.050782,
+            long: 34.768149,
+        },
+        davId: 'davId',
+    };
+
+    describe('serialize method', () => {
+        it('must return a JSON object that contains all properties defined in the NeedParams instance', () => {
+            expect(needParams.serialize()).toEqual(serializedNeedParams);
+        });
+    });
+
+    describe('deserialize method', () => {
+        it('must initialize all the properties of the NeedParams instance with the values provided in the JSON string', () => {
+            const needParamsObject = new NeedParams();
+            needParamsObject.deserialize(serializedNeedParams);
+            expect(needParamsObject).toEqual(needParams);
+        });
+    });
+});