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- # Suggest using `toHaveLength()` (`prefer-to-have-length`)
-
- In order to have a better failure message, `toHaveLength()` should be used upon
- asserting expectations on objects length property.
-
- ## Rule details
-
- This rule triggers a warning if `toBe()`, `toEqual()` or `toStrictEqual()` is
- used to assert objects length property.
-
- ```js
- expect(files.length).toBe(1);
- ```
-
- This rule is enabled by default.
-
- ### Default configuration
-
- The following patterns are considered warnings:
-
- ```js
- expect(files.length).toBe(1);
-
- expect(files.length).toEqual(1);
-
- expect(files.length).toStrictEqual(1);
- ```
-
- The following pattern is not warning:
-
- ```js
- expect(files).toHaveLength(1);
- ```
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