module.exports = {
	options: {
		configFile: 'karma-unit.conf.js'
	},

	// Sinle run
	unit: {
		singleRun: true,
		preprocessors: {
			'src/**/*.js': ['coverage']
		},
		reporters: ['dots', 'coverage'],
		coverageReporter: {
			type : 'text-summary'
		},
	},

	// Create coverage report
	coverage: {
		singleRun: true,
		preprocessors: {
			'src/**/*.js': ['coverage']
		},
		reporters: ['dots', 'coverage'],
		coverageReporter: {
			type : 'html',
			dir: 'coverage/'
		},
	},

	// TDD
	tdd: {}
};

@@ -327,35 +327,46 @@
 ocessors: %7B%0A%09%09%09'
-src
+%3C%25= dir.src %25%3E
 /**/*.js': %5B'cov
@@ -462,24 +462,32 @@
 %09%09dir: '
+%3C%25= dir.
 coverage
 /'%0A%09%09%7D,%0A
@@ -478,16 +478,19 @@
 coverage
+ %25%3E
 /'%0A%09%09%7D,%0A

Use dir set bei grunt.config.