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47 lines
1.3 KiB
Markdown
47 lines
1.3 KiB
Markdown
# Don't use alias methods (no-alias-methods)
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Several Jest methods have alias names, such as `toThrow` having the alias of
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`toThrowError`. This rule ensures that only the canonical name as used in the
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Jest documentation is used in the code. This makes it easier to search for all
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occurrences of the method within code, and it ensures consistency among the
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method names used.
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## Rule details
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This rule triggers a warning if the alias name, rather than the canonical name,
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of a method is used.
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### Default configuration
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The following patterns are considered warnings:
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```js
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expect(a).toBeCalled();
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expect(a).toBeCalledTimes();
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expect(a).toBeCalledWith();
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expect(a).lastCalledWith();
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expect(a).nthCalledWith();
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expect(a).toReturn();
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expect(a).toReturnTimes();
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expect(a).toReturnWith();
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expect(a).lastReturnedWith();
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expect(a).nthReturnedWith();
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expect(a).toThrowError();
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```
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The following patterns are not considered warnings:
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```js
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expect(a).toHaveBeenCalled();
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expect(a).toHaveBeenCalledTimes();
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expect(a).toHaveBeenCalledWith();
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expect(a).toHaveBeenLastCalledWith();
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expect(a).toHaveBeenNthCalledWith();
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expect(a).toHaveReturned();
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expect(a).toHaveReturnedTimes();
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expect(a).toHaveReturnedWith();
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expect(a).toHaveLastReturnedWith();
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expect(a).toHaveNthReturnedWith();
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expect(a).toThrow();
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```
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