@samitouri / QOS-React-1
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1 /**
2 * Copyright (c) Meta Platforms, Inc. and affiliates.
3 *
4 * This source code is licensed under the MIT license found in the
5 * LICENSE file in the root directory of this source tree.
6 *
7 * @emails react-core
8 * @jest-environment node
9 */
10
11 'use strict';
12
13 let React;
14 let act;
15 let ReactFiberReconciler;
16 let ConcurrentRoot;
17 let DefaultEventPriority;
18 let NoEventPriority;
19
20 describe('ReactFiberHostContext', () => {
21 beforeEach(() => {
22 jest.resetModules();
23 React = require('react');
24 act = React.act;
25 ReactFiberReconciler = require('react-reconciler');
26 ConcurrentRoot =
27 require('react-reconciler/src/ReactRootTags').ConcurrentRoot;
28 DefaultEventPriority =
29 require('react-reconciler/src/ReactEventPriorities').DefaultEventPriority;
30 NoEventPriority =
31 require('react-reconciler/src/ReactEventPriorities').NoEventPriority;
32 });
33
34 global.IS_REACT_ACT_ENVIRONMENT = true;
35
36 // @gate __DEV__
37 it('should send the context to prepareForCommit and resetAfterCommit', () => {
38 const rootContext = {};
39 const childContext = {};
40 let updatePriority: typeof DefaultEventPriority = NoEventPriority;
41 const Renderer = ReactFiberReconciler({
42 prepareForCommit: function (hostContext) {
43 expect(hostContext).toBe(rootContext);
44 return null;
45 },
46 resetAfterCommit: function (hostContext) {
47 expect(hostContext).toBe(rootContext);
48 },
49 getRootHostContext: function () {
50 return rootContext;
51 },
52 getChildHostContext: function () {
53 return childContext;
54 },
55 shouldSetTextContent: function () {
56 return false;
57 },
58 createInstance: function () {
59 return null;
60 },
61 finalizeInitialChildren: function () {
62 return null;
63 },
64 appendInitialChild: function () {
65 return null;
66 },
67 now: function () {
68 return 0;
69 },
70 appendChildToContainer: function () {
71 return null;
72 },
73 clearContainer: function () {},
74 setCurrentUpdatePriority: function (newPriority: any) {
75 updatePriority = newPriority;
76 },
77 getCurrentUpdatePriority: function () {
78 return updatePriority;
79 },
80 resolveUpdatePriority: function () {
81 if (updatePriority !== NoEventPriority) {
82 return updatePriority;
83 }
84 return DefaultEventPriority;
85 },
86 trackSchedulerEvent: function () {},
87 resolveEventType: function () {
88 return null;
89 },
90 resolveEventTimeStamp: function () {
91 return -1.1;
92 },
93 shouldAttemptEagerTransition() {
94 return false;
95 },
96 requestPostPaintCallback: function () {},
97 maySuspendCommit(type, props) {
98 return false;
99 },
100 maySuspendCommitOnUpdate(type, oldProps, newProps) {
101 return false;
102 },
103 maySuspendCommitInSyncRender(type, props) {
104 return false;
105 },
106 preloadInstance(instance, type, props) {
107 return true;
108 },
109 startSuspendingCommit() {
110 return null;
111 },
112 suspendInstance(state, instance, type, props) {},
113 suspendOnActiveViewTransition(state, container) {},
114 waitForCommitToBeReady(state, timeoutOffset) {
115 return null;
116 },
117 getSuspendedCommitReason(state, rootContainer) {
118 return null;
119 },
120 supportsMutation: true,
121 });
122
123 const container = Renderer.createContainer(
124 rootContext,
125 ConcurrentRoot,
126 null,
127 false,
128 null,
129 '',
130 () => {},
131 () => {},
132 () => {},
133 null,
134 );
135 act(() => {
136 Renderer.updateContainer(
137 <a>
138 <b />
139 </a>,
140 container,
141 /* parentComponent: */ null,
142 /* callback: */ null,
143 );
144 });
145 });
146 });