Runs test and exports coverage data.
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