I am trying to exclude a specific file from test coverage in Jest by modifying the collectCoverageFrom array. The file name contains square brackets, and I have added an entry with a negation for this file.
collectCoverageFrom: [
'./src/**/*.{js,jsx,ts,tsx}',
'!./src/some/path/to/[fileWithSquareBrackets].ts',
]
Despite this configuration, the test coverage data is still being collected for this particular file.
In order to avoid confusion with glob patterns, you need to escape the square brackets when using Jest. You can achieve this by following either of these methods:
collectCoverageFrom: [
'./src/**/*.{js,jsx,ts,tsx}',
'!./src/some/path/to/[[]fileWithSquareBrackets[]].ts',
]
collectCoverageFrom: [
'./src/**/*.{js,jsx,ts,tsx}',
'!./src/some/path/to/\\[fileWithSquareBrackets\\].ts',
]
Personally, I tend to favor the latter approach as it directly escapes the bracket, rather than incorporating it into a character class for glob patterns.
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