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# fx coverage
Runs test and exports coverage data.
```none
usage: fx coverage [--lcov-output-path <path>] [--html-output-dir <directory>] [--json-output-path <path>] [-h|--help] [testName ...]
Runs test and exports coverage data.
--html-output-dir: directory to output test coverage HTML to
--lcov-output-path: path to write output lcov to
--json-output-path: path to write output JSON to
--test-output-dir: directory to use as test output, skipping running fx test
-v|--verbose: print all executed commands for debugging
-h|--help: prints help message
```
[coverage source code](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/devshell/contrib/coverage)