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GeezerVison is showing github.com — test_runner: add resetCalls to MockFunctionContext · nodejs/node@5000243

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doc/api
- test.md
lib/internal/test_runner
- mock.js
test/parallel
- test-runner-mocking.js

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`‎doc/api/test.md‎`

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+8Lines changed: 8 additions & 0 deletions

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Original file line number	Diff line number	Diff line change
`@@ -856,6 +856,14 @@ test('changes a mock behavior once', (t) => {`
`856`	`856`	`});`
`857`	`857`	```
`858`	`858`
	`859`	+### `ctx.resetCalls()`
	`860`	`+`
	`861`	`+<!-- YAML`
	`862`	`+added: REPLACEME`
	`863`	`+-->`
	`864`	`+`
	`865`	`+Resets the call history of the mock function.`
	`866`	`+`
`859`	`867`	### `ctx.restore()`
`860`	`868`
`861`	`869`	`<!-- YAML`

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`‎lib/internal/test_runner/mock.js‎`

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+4Lines changed: 4 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -77,6 +77,10 @@ class MockFunctionContext {`
`77`	`77`	`}`
`78`	`78`	`}`
`79`	`79`
	`80`	`+ resetCalls() {`
	`81`	`+ this.#calls = [];`
	`82`	`+ }`
	`83`	`+`
`80`	`84`	`trackCall(call) {`
`81`	`85`	`ArrayPrototypePush(this.#calls, call);`
`82`	`86`	`}`

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`‎test/parallel/test-runner-mocking.js‎`

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+17Lines changed: 17 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -780,6 +780,23 @@ test('local mocks are auto restored after the test finishes', async (t) => {`
`780`	`780`	`assert.strictEqual(originalBar, obj.bar);`
`781`	`781`	`});`
`782`	`782`
	`783`	`+test('reset mock calls', (t) => {`
	`784`	`+ const sum = (arg1, arg2) => arg1 + arg2;`
	`785`	`+ const difference = (arg1, arg2) => arg1 - arg2;`
	`786`	`+ const fn = t.mock.fn(sum, difference);`
	`787`	`+`
	`788`	`+ assert.strictEqual(fn(1, 2), -1);`
	`789`	`+ assert.strictEqual(fn(2, 1), 1);`
	`790`	`+ assert.strictEqual(fn.mock.calls.length, 2);`
	`791`	`+ assert.strictEqual(fn.mock.callCount(), 2);`
	`792`	`+`
	`793`	`+ fn.mock.resetCalls();`
	`794`	`+ assert.strictEqual(fn.mock.calls.length, 0);`
	`795`	`+ assert.strictEqual(fn.mock.callCount(), 0);`
	`796`	`+`
	`797`	`+ assert.strictEqual(fn(3, 2), 1);`
	`798`	`+});`
	`799`	`+`
`783`	`800`	`test('uses top level mock', () => {`
`784`	`801`	`function sum(a, b) {`
`785`	`802`	`return a + b;`

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