Nontrivial test passing with RNBranch and RNBranchEventEmitter mocks

Author: jdee

jest.config.js

@@ -88,7 +88,7 @@ module.exports = {
   // notifyMode: "failure-change",
 
   // A preset that is used as a base for Jest's configuration
-  // preset: null,
+  preset: 'react-native',
 
   // Run tests from one or more projects
   // projects: null,
@@ -123,7 +123,9 @@ module.exports = {
   // setupFiles: [],
 
   // A list of paths to modules that run some code to configure or set up the testing framework before each test
-  // setupFilesAfterEnv: [],
+  setupFilesAfterEnv: [
+    './test/RNBranchMock.js'
+  ],
 
   // A list of paths to snapshot serializer modules Jest should use for snapshot testing
   // snapshotSerializers: [],

test/BranchSubscriber.test.js

@@ -0,0 +1,6 @@
+import BranchSubscriber from '../src/BranchSubscriber'
+
+test('BranchSubscriber default initializes with no options', () => {
+  const subscriber = new BranchSubscriber(null)
+  expect(typeof subscriber.options).toBe('object')
+})

test/RNBranchMock.js

@@ -0,0 +1,9 @@
+import { NativeModules } from 'react-native'
+
+NativeModules.RNBranch = {
+
+}
+
+NativeModules.RNBranchEventEmitter = {
+
+}