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refactor(jest-mock)!: simplify usage of jest.fn generic type arguments #12489

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merged 24 commits into from
Feb 26, 2022
Merged

refactor(jest-mock)!: simplify usage of jest.fn generic type arguments #12489

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1132c7b
refactor(jest-mock): Mock generic type arguments
mrazauskas Feb 24, 2022
7df0d63
TS examples
mrazauskas Feb 25, 2022
a08489e
fix ts
mrazauskas Feb 25, 2022
561b907
improve docs
mrazauskas Feb 26, 2022
4dce116
refactor types
mrazauskas Feb 26, 2022
3f7fa09
tiny fix
mrazauskas Feb 26, 2022
bba8fdf
reduce diff
mrazauskas Feb 26, 2022
ab690af
reduce diff
mrazauskas Feb 26, 2022
2b1f2ab
tweak docs
mrazauskas Feb 26, 2022
b649fd2
add comment
mrazauskas Feb 26, 2022
c24d45d
more docs
mrazauskas Feb 26, 2022
b65d40a
tip
mrazauskas Feb 26, 2022
d325678
add changelog entry
mrazauskas Feb 26, 2022
d2e72f2
cleaner getMetadata
mrazauskas Feb 26, 2022
10f5596
bring back few generics
mrazauskas Feb 26, 2022
7e9c4a2
two more bits
mrazauskas Feb 26, 2022
7c61681
really last ones
mrazauskas Feb 26, 2022
feb5722
this is it
mrazauskas Feb 26, 2022
6b0a31d
Update packages/jest-mock/src/index.ts
mrazauskas Feb 26, 2022
2cfbb5f
fix getMetadata types
mrazauskas Feb 26, 2022
f7312dd
better
mrazauskas Feb 26, 2022
f5c620d
remove unnescesary FunctionLike
mrazauskas Feb 26, 2022
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Merge branch 'main'
mrazauskas Feb 26, 2022
4171124
last bit of docs
mrazauskas Feb 26, 2022
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8 changes: 7 additions & 1 deletion docs/JestObjectAPI.md
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Expand Up @@ -453,7 +453,7 @@ const otherCopyOfMyModule = require('myModule');

## Mock Functions

### `jest.fn(implementation)`
### `jest.fn(implementation?)`

Returns a new, unused [mock function](MockFunctionAPI.md). Optionally takes a mock implementation.

Expand All @@ -467,6 +467,12 @@ const returnsTrue = jest.fn(() => true);
console.log(returnsTrue()); // true;
```

:::note

See [Mock Functions](MockFunctionAPI.md#jestfnimplementation) page for details on TypeScript usage.

:::

### `jest.isMockFunction(fn)`

Determines if the given function is a mocked function.
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