add consumer service test

package.json

@@ -18,10 +18,11 @@
     "compile": "rm -Rf ./lib && tsc",
     "consumer:dev": "ts-node-dev src/consumer/app.ts",
     "lint": "eslint --ext .js,.ts src/",
-    "mocha": "ts-mocha \"test/**/*.ts\" --recursive --exit",
     "server:dev": "ts-node-dev src/server/index.ts",
     "start": "npm run lib/index.js",
-    "test": "NODE_ENV=test npm run mocha"
+    "test:consumer": "ts-mocha \"test/consumer/**/**.ts\" --recursive --exit",
+    "test:integration": "NODE_ENV=test ts-mocha \"test/websocket.test.ts\" --recursive --exit",
+    "test": "npm run test:consumer && npm run test:integration"
   },
   "author": "Kylie Pace",
   "license": "ISC",

test/consumer/services/TransformService.test.ts

@@ -0,0 +1,99 @@
+import chai from 'chai';
+import TransformService from '../../../src/consumer/services/TransformService';
+
+
+describe('consumer > services > transformService', () => {
+  let transformService = new TransformService();
+  describe('#buildChildData', () => {
+    describe('data without SESSION_START or SESSION_END events', () => {
+      let childData;
+      before(() => {
+        const data = [
+          {
+            timestamp: 1569972083,
+            type: 'EVENT',
+            name: 'cart_loaded'
+          }
+        ];
+        childData = transformService.buildChildData(data);
+      });
+      it('returns all the input data', () => {
+        chai.expect(childData.length).to.equal(1);
+      });
+    });
+
+    describe('data with SESSION_START event', () => {
+      let childData;
+      before(() => {
+        const data = [
+          {
+            timestamp: 1569972083,
+            type: 'SESSION_START',
+            session_id: '12'
+          },
+          {
+            timestamp: 1569972083,
+            type: 'EVENT',
+            name: 'cart_loaded'
+          }
+        ];
+        childData = transformService.buildChildData(data, data[0].timestamp);
+      });
+      it('returns all the input data minus the first event', () => {
+        chai.expect(childData.length).to.equal(1);
+        chai.expect(childData[0].name).to.equal('cart_loaded');
+      });
+    });
+
+    describe('data with SESSION_END event', () => {
+      let childData;
+      before(() => {
+        const data = [
+          {
+            timestamp: 1569972083,
+            type: 'EVENT',
+            name: 'cart_loaded'
+          },
+          {
+            timestamp: 1569972083,
+            type: 'SESSION_END',
+            session_id: '12'
+          },
+        ];
+        childData = transformService.buildChildData(data, undefined, data[1].timestamp);
+      });
+      it('returns all the input data minus the last event', () => {
+        chai.expect(childData.length).to.equal(1);
+        chai.expect(childData[0].name).to.equal('cart_loaded');
+      });
+    });
+
+    describe('data with SESSION_START and SESSION_END event', () => {
+      let childData;
+      before(() => {
+        const data = [
+          {
+            timestamp: 1569972083,
+            type: 'SESSION_START',
+            session_id: '12'
+          },
+          {
+            timestamp: 1569972083,
+            type: 'EVENT',
+            name: 'cart_loaded'
+          },
+          {
+            timestamp: 1569972083,
+            type: 'SESSION_END',
+            session_id: '12'
+          },
+        ];
+        childData = transformService.buildChildData(data, data[0].timestamp, data[2].timestamp);
+      });
+      it('returns all the input data minus the last event', () => {
+        chai.expect(childData.length).to.equal(1);
+        chai.expect(childData[0].name).to.equal('cart_loaded');
+      });
+    });
+  });
+});