mocha [spec..]
Run tests with Mocha
Commands
mocha inspect [spec..] Run tests with Mocha [default]
mocha init <path> create a client-side Mocha setup at <path>
Rules & Behavior
--allow-uncaught Allow uncaught errors to propagate [boolean]
-A, --async-only Require all tests to use a callback (async) or
return a Promise [boolean]
-b, --bail Abort ("bail") after first test failure [boolean]
--check-leaks Check for global variable leaks [boolean]
--delay Delay initial execution of root suite [boolean]
--dry-run Report tests without executing them [boolean]
--exit Force Mocha to quit after tests complete [boolean]
--fail-zero Fail test run if no test(s) encountered [boolean]
--forbid-only Fail if exclusive test(s) encountered [boolean]
--forbid-pending Fail if pending test(s) encountered [boolean]
--global, --globals List of allowed global variables [array]
-j, --jobs Number of concurrent jobs for --parallel; use 1 to
run in serial
[number] [default: (number of CPU cores - 1)]
-p, --parallel Run tests in parallel [boolean]
--retries Retry failed tests this many times [number]
-s, --slow Specify "slow" test threshold (in milliseconds)
[string] [default: 75]
-t, --timeout, --timeouts Specify test timeout threshold (in milliseconds)
[string] [default: 2000]
-u, --ui Specify user interface [string] [default: "bdd"]
Reporting & Output
-c, --color, --colors Force-enable color output [boolean]
--diff Show diff on failure
[boolean] [default: true]
--full-trace Display full stack traces [boolean]
--inline-diffs Display actual/expected differences
inline within each string [boolean]
-R, --reporter Specify reporter to use
[string] [default: "spec"]
-O, --reporter-option, Reporter-specific options
--reporter-options (<k=v,[k1=v1,..]>) [array]
Configuration
--config Path to config file [string] [default: (nearest rc file)]
-n, --node-option Node or V8 option (no leading "--") [array]
--package Path to package.json for config [string]
File Handling
--extension File extension(s) to load
[array] [default: ["js","cjs","mjs"]]
--file Specify file(s) to be loaded prior to root suite
execution [array] [default: (none)]
--ignore, --exclude Ignore file(s) or glob pattern(s)
[array] [default: (none)]
--recursive Look for tests in subdirectories [boolean]
-r, --require Require module [array] [default: (none)]
-S, --sort Sort test files [boolean]
-w, --watch Watch files in the current working directory for
changes [boolean]
--watch-files List of paths or globs to watch [array]
--watch-ignore List of paths or globs to exclude from watching
[array] [default: ["node_modules",".git"]]
Test Filters
-f, --fgrep Only run tests containing this string [string]
-g, --grep Only run tests matching this string or regexp [string]
-i, --invert Inverts --grep and --fgrep matches [boolean]
Positional Arguments
spec One or more files, directories, or globs to test
[array] [default: ["test"]]
Other Options
-h, --help Show usage information & exit [boolean]
-V, --version Show version number & exit [boolean]
--list-interfaces List built-in user interfaces & exit [boolean]
--list-reporters List built-in reporters & exit [boolean]
Mocha Resources
Chat: https://gitter.im/mochajs/mocha
GitHub: https://github.com/mochajs/mocha.git
Docs: https://mochajs.org/
topic : understanding mocha commands in terminal
read this
reference