# Usage examples ## Wildcards In this example, `grunt nodeunit:all` or `grunt nodeunit` will test all files ending with `_test.js` in the `test` directory. ```js // Project configuration. grunt.initConfig({ nodeunit: { all: ['test/*_test.js'] } }); ``` With a slight modification, `grunt nodeunit:all` will test files matching the same pattern in the `test` directory _and all subdirectories_. ```js // Project configuration. grunt.initConfig({ nodeunit: { all: ['test/**/*_test.js'] } }); ```