Create empty mocks for jest

TestApp/.eslintrc

@@ -1,7 +1,8 @@
 {
     "parser": "babel-eslint",
     "env": {
-        "es6": true
+        "es6": true,
+        "jest": true
     },
     "plugins": [
         "react"

TestApp/package.json

@@ -33,6 +33,12 @@
     "react-test-renderer": "^16.1.1"
   },
   "jest": {
-    "preset": "react-native"
+    "preset": "react-native",
+    "setupFiles": [
+      "./node_modules/appcenter/test/AppCenterMock.js",
+      "./node_modules/appcenter-analytics/test/AppCenterAnalyticsMock.js",
+      "./node_modules/appcenter-crashes/test/AppCenterCrashesMock.js",
+      "./node_modules/appcenter-push/test/AppCenterPushMock.js"
+    ]
   }
 }

TestApp34/.eslintrc

@@ -1,7 +1,8 @@
 {
     "parser": "babel-eslint",
     "env": {
-        "es6": true
+        "es6": true,
+        "jest": true
     },
     "plugins": [
         "react"

appcenter-analytics/.eslintrc

@@ -1,7 +1,8 @@
 {
     "parser": "babel-eslint",
     "env": {
-        "es6": true
+        "es6": true,
+        "jest": true
     },
     "plugins": [
         "react"

appcenter-analytics/package.json

@@ -38,6 +38,7 @@
     "eslint-plugin-react": "^7.2.1"
   },
   "scripts": {
-    "lint": "./node_modules/.bin/eslint ."
+    "lint": "./node_modules/.bin/eslint .",
+    "postinstall": "node scripts/postinstall"
   }
 }

appcenter-analytics/scripts/postinstall.js

@@ -0,0 +1,3 @@
+const mock = require('../../appcenter/test/SetupAppCenterMock');
+
+mock.setupMock('appcenter-analytics', 'AppCenterAnalyticsMock.js');

appcenter-analytics/test/AppCenterAnalyticsMock.js

@@ -0,0 +1,5 @@
+jest.mock('appcenter-analytics', () => ({
+    trackEvent: jest.fn(),
+    isEnabled: jest.fn(),
+    setEnabled: jest.fn()
+}));

appcenter-crashes/.eslintrc

@@ -1,7 +1,8 @@
 {
     "parser": "babel-eslint",
     "env": {
-        "es6": true
+        "es6": true,
+        "jest": true
     },
     "plugins": [
         "react"

appcenter-crashes/package.json

@@ -40,6 +40,7 @@
     "eslint-plugin-react": "^7.2.1"
   },
   "scripts": {
-    "lint": "./node_modules/.bin/eslint ."
+    "lint": "./node_modules/.bin/eslint .",
+    "postinstall": "node scripts/postinstall"
   }
 }

appcenter-crashes/scripts/postinstall.js

@@ -0,0 +1,3 @@
+const mock = require('../../appcenter/test/SetupAppCenterMock');
+
+mock.setupMock('appcenter-crashes', 'AppCenterCrashesMock.js');

appcenter-crashes/test/AppCenterCrashesMock.js

@@ -0,0 +1,9 @@
+jest.mock('appcenter-crashes', () => ({
+    generateTestCrash: jest.fn(),
+    hasCrashedInLastSession: jest.fn(),
+    lastSessionCrashReport: jest.fn(),
+    isEnabled: jest.fn(),
+    setEnabled: jest.fn(),
+    notifyUserConfirmation: jest.fn(),
+    setListener: jest.fn(),
+}));

appcenter-push/.eslintrc

@@ -1,7 +1,8 @@
 {
     "parser": "babel-eslint",
     "env": {
-        "es6": true
+        "es6": true,
+        "jest": true
     },
     "plugins": [
         "react"

appcenter-push/package.json

@@ -38,6 +38,7 @@
     "eslint-plugin-react": "^7.2.1"
   },
   "scripts": {
-    "lint": "./node_modules/.bin/eslint ."
+    "lint": "./node_modules/.bin/eslint .",
+    "postinstall": "node scripts/postinstall"
   }
 }

appcenter-push/scripts/postinstall.js

@@ -0,0 +1,3 @@
+const mock = require('../../appcenter/test/SetupAppCenterMock');
+
+mock.setupMock('appcenter-push', 'AppCenterPushMock.js');

appcenter-push/test/AppCenterPushMock.js

@@ -0,0 +1,5 @@
+jest.mock('appcenter-push', () => ({
+    isEnabled: jest.fn(),
+    setEnabled: jest.fn(),
+    setListener: jest.fn()
+}));

appcenter/package.json

@@ -43,6 +43,7 @@
   },
   "scripts": {
     "lint": "./node_modules/.bin/eslint .",
+    "postinstall": "node scripts/postinstall",
     "test": "jest"
   },
   "jest": {

appcenter/scripts/postinstall.js

@@ -0,0 +1,3 @@
+const mock = require('../test/SetupAppCenterMock');
+
+mock.setupMock('appcenter', 'AppCenterMock.js');

appcenter/test/AppCenterMock.js

@@ -0,0 +1,9 @@
+jest.mock('appcenter', () => ({
+    getLogLevel: jest.fn(),
+    setLogLevel: jest.fn(),
+    getInstallId: jest.fn(),
+    isEnabled: jest.fn(),
+    setEnabled: jest.fn(),
+    setCustomProperties: jest.fn(),
+    getSdkVersion: jest.fn()
+}));

appcenter/test/SetupAppCenterMock.js

@@ -0,0 +1,33 @@
+const fs = require('fs');
+const path = require('path');
+
+module.exports = {
+    setupMock(moduleName, setupFileName) {
+        const projectDirectory = path.resolve(__dirname, '..', '..', '..');
+        const setupFileNamePath = `.${path.sep}node_modules${path.sep}${moduleName}${path.sep}test${path.sep}${setupFileName}`;
+
+        // Check if package.json has jest as dependency
+        let packageJson = '';
+        const packageJsonFile = path.join(`${projectDirectory}`, 'package.json');
+        try {
+            packageJson = JSON.parse(fs.readFileSync(packageJsonFile, 'utf8'));
+            if (!Object.prototype.hasOwnProperty.call(packageJson.devDependencies, 'jest') &&
+                !Object.prototype.hasOwnProperty.call(packageJson.dependencies, 'jest')) {
+                return;
+            }
+        } catch (e) {
+            console.log('Could not read package.json file');
+            return;
+        }
+
+        // Add setup file for module
+        if (Object.prototype.hasOwnProperty.call(packageJson, 'jest')) {
+            if (packageJson.jest.setupFiles === undefined) {
+                packageJson.jest.setupFiles = [setupFileNamePath];
+            } else if (packageJson.jest.setupFiles.indexOf(setupFileNamePath) === -1) {
+                packageJson.jest.setupFiles.push(setupFileNamePath);
+            }
+            fs.writeFileSync(packageJsonFile, JSON.stringify(packageJson));
+        }
+    }
+};