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Merged
nodejs-github-bot merged 3 commits into from
Sep 3, 2023
Merged

test_runner: preserve original property descriptor when mutating objects #49433

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3fda352
test_runner: preserve original property descriptor
ErickWendel Sep 1, 2023
77caf13
test_runner: add test for checking the property descriptor state
ErickWendel Sep 1, 2023
64f872a
test_runner: refactoring functions
ErickWendel Sep 1, 2023
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196 changes: 161 additions & 35 deletions lib/internal/test_runner/mock/mock_timers.js
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Original file line numberDiff line numberDiff line change
Expand Up@@ -11,6 +11,8 @@ const{
DateNow,
FunctionPrototypeApply,
FunctionPrototypeBind,
ObjectDefineProperty,
ObjectGetOwnPropertyDescriptor,
Promise,
SymbolAsyncIterator,
SymbolDispose,
Expand DownExpand Up@@ -239,11 +241,7 @@ class MockTimers{
toFake: {
__proto__: null,
setTimeout: ()=>{
this.#realSetTimeout =globalThis.setTimeout;
this.#realClearTimeout =globalThis.clearTimeout;
this.#realTimersSetTimeout =nodeTimers.setTimeout;
this.#realTimersClearTimeout =nodeTimers.clearTimeout;
this.#realPromisifiedSetTimeout =nodeTimersPromises.setTimeout;
this.#storeOriginalSetTimeout();

globalThis.setTimeout=this.#setTimeout;
globalThis.clearTimeout=this.#clearTimeout;
Expand All@@ -257,11 +255,7 @@ class MockTimers{
);
},
setInterval: ()=>{
this.#realSetInterval =globalThis.setInterval;
this.#realClearInterval =globalThis.clearInterval;
this.#realTimersSetInterval =nodeTimers.setInterval;
this.#realTimersClearInterval =nodeTimers.clearInterval;
this.#realPromisifiedSetInterval =nodeTimersPromises.setInterval;
this.#storeOriginalSetInterval();

globalThis.setInterval=this.#setInterval;
globalThis.clearInterval=this.#clearInterval;
Expand All@@ -275,10 +269,7 @@ class MockTimers{
);
},
setImmediate: ()=>{
this.#realSetImmediate =globalThis.setImmediate;
this.#realClearImmediate =globalThis.clearImmediate;
this.#realTimersSetImmediate =nodeTimers.setImmediate;
this.#realTimersClearImmediate =nodeTimers.clearImmediate;
this.#storeOriginalSetImmediate();

globalThis.setImmediate=this.#setImmediate;
globalThis.clearImmediate=this.#clearImmediate;
Expand All@@ -295,31 +286,13 @@ class MockTimers{
toReal: {
__proto__: null,
setTimeout: ()=>{
globalThis.setTimeout=this.#realSetTimeout;
globalThis.clearTimeout=this.#realClearTimeout;

nodeTimers.setTimeout=this.#realTimersSetTimeout;
nodeTimers.clearTimeout=this.#realTimersClearTimeout;

nodeTimersPromises.setTimeout=this.#realPromisifiedSetTimeout;
this.#restoreOriginalSetTimeout();
},
setInterval: ()=>{
globalThis.setInterval=this.#realSetInterval;
globalThis.clearInterval=this.#realClearInterval;

nodeTimers.setInterval=this.#realTimersSetInterval;
nodeTimers.clearInterval=this.#realTimersClearInterval;

nodeTimersPromises.setInterval=this.#realPromisifiedSetInterval;
this.#restoreOriginalSetInterval();
},
setImmediate: ()=>{
globalThis.setImmediate=this.#realSetImmediate;
globalThis.clearImmediate=this.#realClearImmediate;

nodeTimers.setImmediate=this.#realTimersSetImmediate;
nodeTimers.clearImmediate=this.#realTimersClearImmediate;

nodeTimersPromises.setImmediate=this.#realPromisifiedSetImmediate;
this.#restoreSetImmediate();
},
},
};
Expand All@@ -329,6 +302,159 @@ class MockTimers{
this.#isEnabled =activate;
}

#restoreSetImmediate(){
ObjectDefineProperty(
globalThis,
'setImmediate',
this.#realSetImmediate,
);
ObjectDefineProperty(
globalThis,
'clearImmediate',
this.#realClearImmediate,
);
ObjectDefineProperty(
nodeTimers,
'setImmediate',
this.#realTimersSetImmediate,
);
ObjectDefineProperty(
nodeTimers,
'clearImmediate',
this.#realTimersClearImmediate,
);
ObjectDefineProperty(
nodeTimersPromises,
'setImmediate',
this.#realPromisifiedSetImmediate,
);
}

#restoreOriginalSetInterval(){
ObjectDefineProperty(
globalThis,
'setInterval',
this.#realSetInterval,
);
ObjectDefineProperty(
globalThis,
'clearInterval',
this.#realClearInterval,
);
ObjectDefineProperty(
nodeTimers,
'setInterval',
this.#realTimersSetInterval,
);
ObjectDefineProperty(
nodeTimers,
'clearInterval',
this.#realTimersClearInterval,
);
ObjectDefineProperty(
nodeTimersPromises,
'setInterval',
this.#realPromisifiedSetInterval,
);
}

#restoreOriginalSetTimeout(){
ObjectDefineProperty(
globalThis,
'setTimeout',
this.#realSetTimeout,
);
ObjectDefineProperty(
globalThis,
'clearTimeout',
this.#realClearTimeout,
);
ObjectDefineProperty(
nodeTimers,
'setTimeout',
this.#realSetTimeout,
);
ObjectDefineProperty(
nodeTimers,
'clearTimeout',
this.#realTimersClearTimeout,
);
ObjectDefineProperty(
nodeTimersPromises,
'setTimeout',
this.#realPromisifiedSetTimeout,
);
}

#storeOriginalSetImmediate(){
this.#realSetImmediate =ObjectGetOwnPropertyDescriptor(
globalThis,
'setImmediate',
);
this.#realClearImmediate =ObjectGetOwnPropertyDescriptor(
globalThis,
'clearImmediate',
);
this.#realTimersSetImmediate =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'setImmediate',
);
this.#realTimersClearImmediate =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'clearImmediate',
);
this.#realPromisifiedSetImmediate =ObjectGetOwnPropertyDescriptor(
nodeTimersPromises,
'setImmediate',
);
}

#storeOriginalSetInterval(){
this.#realSetInterval =ObjectGetOwnPropertyDescriptor(
globalThis,
'setInterval',
);
this.#realClearInterval =ObjectGetOwnPropertyDescriptor(
globalThis,
'clearInterval',
);
this.#realTimersSetInterval =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'setInterval',
);
this.#realTimersClearInterval =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'clearInterval',
);
this.#realPromisifiedSetInterval =ObjectGetOwnPropertyDescriptor(
nodeTimersPromises,
'setInterval',
);
}

#storeOriginalSetTimeout(){
this.#realSetTimeout =ObjectGetOwnPropertyDescriptor(
globalThis,
'setTimeout',
);
this.#realClearTimeout =ObjectGetOwnPropertyDescriptor(
globalThis,
'clearTimeout',
);
this.#realTimersSetTimeout =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'setTimeout',
);
this.#realTimersClearTimeout =ObjectGetOwnPropertyDescriptor(
nodeTimers,
'clearTimeout',
);
this.#realPromisifiedSetTimeout =ObjectGetOwnPropertyDescriptor(
nodeTimersPromises,
'setTimeout',
);
}

tick(time=1){
if(!this.#isEnabled){
thrownewERR_INVALID_STATE(
Expand Down
46 changes: 46 additions & 0 deletions test/parallel/test-runner-mock-timers.js
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Original file line numberDiff line numberDiff line change
Expand Up@@ -47,6 +47,52 @@ describe('Mock Timers Test Suite', () =>{
});
});

it('should check that propertyDescriptor gets back after reseting timers',(t)=>{
constgetDescriptor=(ctx,fn)=>Object.getOwnPropertyDescriptor(ctx,fn);
constgetCurrentTimersDescriptors=()=>{
consttimers=[
'setTimeout',
'clearTimeout',
'setInterval',
'clearInterval',
'setImmediate',
'clearImmediate',
];

constglobalTimersDescriptors=timers.map((fn)=>getDescriptor(global,fn));
constnodeTimersDescriptors=timers.map((fn)=>getDescriptor(nodeTimers,fn));
constnodeTimersPromisesDescriptors=timers
.filter((fn)=>!fn.includes('clear'))
.map((fn)=>getDescriptor(nodeTimersPromises,fn));

return{
global: globalTimersDescriptors,
nodeTimers: nodeTimersDescriptors,
nodeTimersPromises: nodeTimersPromisesDescriptors,
};
};
constbefore=getCurrentTimersDescriptors();
t.mock.timers.enable();
constduring=getCurrentTimersDescriptors();
t.mock.timers.reset();
constafter=getCurrentTimersDescriptors();

assert.deepStrictEqual(
before,
after,
);

assert.notDeepStrictEqual(
before,
during,
);

assert.notDeepStrictEqual(
during,
after,
);
});

it('should reset all timers when calling .reset function',(t)=>{
t.mock.timers.enable();
constfn=t.mock.fn();
Expand Down