[change] Remove jest preset

Also add node-based unit tests for SSR APIs.

packages/react-native-web/jest-preset.js

@@ -1,7 +0,0 @@
-module.exports = {
-  moduleNameMapper: {
-    '^react-native$': require.resolve('./dist/cjs')
-  },
-  setupFiles: [require.resolve('./jest/setup.js')],
-  testEnvironment: require.resolve('jest-environment-jsdom')
-};

packages/react-native-web/jest/setup.js

@@ -1,18 +0,0 @@
-/* eslint-env jasmine, jest */
-
-'use strict';
-
-global.__DEV__ = true;
-
-const mockEmptyObject = {};
-
-// Make sure snapshots contain the original style objects
-jest.mock('../dist/cjs/exports/StyleSheet/ReactNativePropRegistry', () => ({
-  register: (id) => id,
-  getByID: () => mockEmptyObject
-}));
-
-jest.mock('../dist/exports/StyleSheet/ReactNativePropRegistry', () => ({
-  register: (id) => id,
-  getByID: () => mockEmptyObject
-}));

scripts/jest/config.js

@@ -5,13 +5,18 @@ module.exports = {
   modulePathIgnorePatterns: [
     '<rootDir>/packages/benchmarks/',
     '<rootDir>/packages/docs/',
+    '<rootDir>/packages/examples/',
     '<rootDir>/packages/react-native-web/dist/'
   ],
-  // resetMocks: true,
   rootDir: process.cwd(),
   roots: ['<rootDir>/packages'],
-  setupFiles: ['jest-canvas-mock', require.resolve('./setupFiles.js')],
-  setupFilesAfterEnv: [require.resolve('./setupFramework.js')],
+  setupFiles: ['jest-canvas-mock', require.resolve('./setupFiles.dom.js')],
+  snapshotFormat: {
+    printBasicPrototype: false
+  },
   testEnvironment: 'jsdom',
+  testMatch: ['**/__tests__/**/?(*-)+(spec|test).[jt]s?(x)'],
   timers: 'fake'
 };
+
+('**/?(*.)+(spec|test).[jt]s?(x)');

scripts/jest/config.node.js

@@ -0,0 +1,19 @@
+'use strict';
+
+module.exports = {
+  coveragePathIgnorePatterns: ['/node_modules/', '<rootDir>/packages/react-native-web/src/vendor/'],
+  modulePathIgnorePatterns: [
+    '<rootDir>/packages/benchmarks/',
+    '<rootDir>/packages/docs/',
+    '<rootDir>/packages/examples/',
+    '<rootDir>/packages/react-native-web/dist/'
+  ],
+  rootDir: process.cwd(),
+  roots: ['<rootDir>/packages'],
+  snapshotFormat: {
+    printBasicPrototype: false
+  },
+  testEnvironment: 'node',
+  testMatch: ['**/__tests__/**/?(*-)+(spec|test).node.[jt]s?(x)'],
+  timers: 'fake'
+};

scripts/jest/serializer.js

@@ -1,59 +0,0 @@
-import React from 'react';
-import { StyleSheet } from '../../packages/react-native-web/src';
-
-function createSerializer(styleSheet) {
-  function flattenNodeStyles(node) {
-    if (node && node.props) {
-      // check for React elements in any props
-      const nextProps = Object.keys(node.props).reduce((acc, curr) => {
-        const value = node.props[curr];
-        if (React.isValidElement(value)) {
-          acc[curr] = flattenNodeStyles(value);
-        }
-        return acc;
-      }, {});
-
-      // flatten styles and avoid empty objects in snapshots
-      if (node.props.style) {
-        const style = styleSheet.flatten(node.props.style);
-        if (Object.keys(style).length > 0) {
-          nextProps.style = style;
-        } else {
-          delete nextProps.style;
-        }
-      }
-
-      const args = [node, nextProps];
-
-      // recurse over children too
-      const children = node.children || node.props.children;
-      if (children) {
-        if (Array.isArray(children)) {
-          children.forEach((child) => {
-            args.push(flattenNodeStyles(child));
-          });
-        } else {
-          args.push(flattenNodeStyles(children));
-        }
-      }
-
-      return React.cloneElement.apply(React.cloneElement, args);
-    }
-
-    return node;
-  }
-
-  function test(value) {
-    return !!value && value.$$typeof === Symbol.for('react.test.json');
-  }
-
-  function print(value, serializer) {
-    return serializer(flattenNodeStyles(value));
-  }
-
-  return { test, print };
-}
-
-const serializer = createSerializer(StyleSheet);
-
-export default serializer;

scripts/jest/setupFiles.dom.js

@@ -1,4 +1,9 @@
-/* eslint-env jasmine, jest */
+/**
+ * Copyright (c) Nicolas Gallagher.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
 // JSDOM doesn't implement ResizeObserver
 class ResizeObserver {

scripts/jest/setupFramework.js

@@ -1 +0,0 @@
-/* eslint-env jasmine, jest */