fix jest preset

Author: Brandon Carroll

jest-preset.js

@@ -1,6 +1,9 @@
 const jestPreset = require('react-native/jest-preset');
 
 module.exports = Object.assign(jestPreset, {
-  transformIgnorePatterns: ['node_modules/(?!(react-native.*|@?react-navigation.*)/)'],
-  setupFiles: [...jestPreset.setupFiles, require.resolve('./dist/preset/setup.js')],
+  transformIgnorePatterns: [
+    ...jestPreset.transformIgnorePatterns,
+    'node_modules/(?!(react-native.*|@?react-navigation.*)/)',
+  ],
+  setupFilesAfterEnv: [require.resolve('./dist/preset/setup.js')],
 });

src/preset/index.js

@@ -1,4 +1,4 @@
-import { mockComponent } from './mock-component';
+import { mockComponent } from './mock-components';
 import { getCoreComponents, setCoreComponents } from './core-components';
 
 module.exports = {

src/preset/mock-component.js renamed to src/preset/mock-components.js

@@ -1,8 +1,5 @@
 // Un-mock the things that we'll be mocking
 require('./unmock');
 
-// Mock native modules
-require('./native-modules');
-
 // Mock lean core components
-require('./mock-component');
+require('./mock-components');