60077fbc29
the --coverage option was not being used in the builder at all, so provided no change in behavior. The --codeCoverage option should be used instead ISSUES CLOSED: #2564
208 lines
5.8 KiB
Markdown
208 lines
5.8 KiB
Markdown
# jest
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Run Jest unit tests
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Builder properties can be configured in angular.json when defining the builder, or when invoking it.
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## Properties
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### bail
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Alias(es): b
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Type: `number`
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Exit the test suite immediately after `n` number of failing tests. (https://jestjs.io/docs/en/cli#bail)
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### ci
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Type: `boolean`
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Whether to run Jest in continuous integration (CI) mode. This option is on by default in most popular CI environments. It will prevent snapshots from being written unless explicitly requested. (https://jestjs.io/docs/en/cli#ci)
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### clearCache
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Type: `boolean`
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Deletes the Jest cache directory and then exits without running tests. Will delete Jest's default cache directory. _Note: clearing the cache will reduce performance_.
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### codeCoverage
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Type: `boolean`
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Indicates that test coverage information should be collected and reported in the output. (https://jestjs.io/docs/en/cli#coverage)
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### color
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Alias(es): colors
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Type: `boolean`
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Forces test results output color highlighting (even if stdout is not a TTY). Set to false if you would like to have no colors. (https://jestjs.io/docs/en/cli#colors)
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### colors
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Type: `boolean`
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Forces test results output highlighting even if stdout is not a TTY. (https://jestjs.io/docs/en/cli#colors)
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### config
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Type: `string`
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The path to a Jest config file specifying how to find and execute tests. If no rootDir is set in the config, the directory containing the config file is assumed to be the rootDir for the project. This can also be a JSON-encoded value which Jest will use as configuration
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### coverageDirectory
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Type: `string`
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An array of regexp pattern strings that are matched against all file paths before executing the test. If the file path matches any of the patterns, coverage information will be skipped.
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### coverageReporters
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Type: `string`
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A list of reporter names that Jest uses when writing coverage reports. Any istanbul reporter
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### findRelatedTests
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Type: `string`
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Find and run the tests that cover a comma separated list of source files that were passed in as arguments. (https://jestjs.io/docs/en/cli#findrelatedtests-spaceseparatedlistofsourcefiles)
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### jestConfig
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Type: `string`
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The path of the Jest configuration. (https://jestjs.io/docs/en/configuration)
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### json
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Type: `boolean`
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Prints the test results in JSON. This mode will send all other test output and user messages to stderr. (https://jestjs.io/docs/en/cli#json)
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### maxWorkers
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Alias(es): w
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Type: `number`
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Specifies the maximum number of workers the worker-pool will spawn for running tests. This defaults to the number of the cores available on your machine. Useful for CI. (its usually best not to override this default) (https://jestjs.io/docs/en/cli#maxworkers-num)
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### onlyChanged
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Alias(es): o
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Type: `boolean`
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Attempts to identify which tests to run based on which files have changed in the current repository. Only works if you're running tests in a git or hg repository at the moment. (https://jestjs.io/docs/en/cli#onlychanged)
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### outputFile
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Type: `string`
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Write test results to a file when the --json option is also specified. (https://jestjs.io/docs/en/cli#outputfile-filename)
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### passWithNoTests
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Type: `boolean`
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Will not fail if no tests are found (for example while using `--testPathPattern`.) (https://jestjs.io/docs/en/cli#passwithnotests)
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### reporters
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Type: `array`
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Run tests with specified reporters. Reporter options are not available via CLI. Example with multiple reporters: jest --reporters="default" --reporters="jest-junit" (https://jestjs.io/docs/en/cli#reporters)
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### runInBand
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Alias(es): i
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Type: `boolean`
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Run all tests serially in the current process (rather than creating a worker pool of child processes that run tests). This is sometimes useful for debugging, but such use cases are pretty rare. Useful for CI. (https://jestjs.io/docs/en/cli#runinband)
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### setupFile
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Type: `string`
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The name of a setup file used by Jest. (https://jestjs.io/docs/en/configuration#setupfilesafterenv-array)
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### silent
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Type: `boolean`
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Prevent tests from printing messages through the console. (https://jestjs.io/docs/en/cli#silent)
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### testFile
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Type: `string`
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The name of the file to test.
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### testLocationInResults
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Type: `boolean`
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Adds a location field to test results. Used to report location of a test in a reporter. { "column": 4, "line": 5 } (https://jestjs.io/docs/en/cli#testlocationinresults)
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### testNamePattern
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Alias(es): t
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Type: `string`
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Run only tests with a name that matches the regex pattern. (https://jestjs.io/docs/en/cli#testnamepattern-regex)
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### testPathPattern
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Type: `array`
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An array of regexp pattern strings that is matched against all tests paths before executing the test. (https://jestjs.io/docs/en/cli#testpathpattern-regex)
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### testResultsProcessor
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Type: `string`
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Node module that implements a custom results processor. (https://jestjs.io/docs/en/configuration#testresultsprocessor-string)
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### tsConfig
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Type: `string`
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The name of the Typescript configuration file.
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### updateSnapshot
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Alias(es): u
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Type: `boolean`
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Use this flag to re-record snapshots. Can be used together with a test suite pattern or with `--testNamePattern` to re-record snapshot for test matching the pattern. (https://jestjs.io/docs/en/cli#updatesnapshot)
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### useStderr
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Type: `boolean`
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Divert all output to stderr.
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### verbose
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Type: `boolean`
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Display individual test results with the test suite hierarchy. (https://jestjs.io/docs/en/cli#verbose)
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### watch
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Type: `boolean`
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Watch files for changes and rerun tests related to changed files. If you want to re-run all tests when a file has changed, use the `--watchAll` option. (https://jestjs.io/docs/en/cli#watch)
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### watchAll
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Type: `boolean`
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Watch files for changes and rerun all tests when something changes. If you want to re-run only the tests that depend on the changed files, use the `--watch` option. (https://jestjs.io/docs/en/cli#watchall)
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