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Ensure incremental coverage gains are not lost, and positively reinforce good testing habits. Automatically bump up global Jest thresholds whenever coverage goes above them.
jest-it-up exposes a standalone CLI tool (see options), but you most likely want to use it in a post-test script.
Within package.json:
{"scripts": {"test": "jest --coverage",// or set `collectCoverage` to `true` in Jest config"posttest": "jest-it-up"// must run from the same directory as `jest.config.js`}}
within jest.config.js:
module.exports={coverageReporters: ['json-summary',// plus any other reporters, e.g. "lcov", "text", "text-summary"],coverageThreshold: {global: {branches: 0,// or your current numbersfunctions: 0,lines: 0,statements: 0,},},}
Once tests finish running, jest-it-up will update configured thresholds to match higher coverage numbers, if any.
Options
$ jest-it-up --helpUsage: jest-it-up [options]Options: -c, --config <path> path to a Jest config file (default: 'jest.config.js') -m, --margin <margin> minimum threshold increase (default: 0) -t, --tolerance <tolerance> threshold difference from actual coverage -i, --interactive ask for confirmation before applying changes -s, --silent do not output messages -d, --dry-run process but do not change files -v, --version output the version number -p, --precision number of threshold decimal places to persist -h, --help display help for command
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🌐📈 Automatically bump up global Jest thresholds whenever coverage goes above them
