add all types of coverage

.gitignore

@@ -70,3 +70,5 @@ dist/
 styleguide/
 
 flow-typed/
+
+coverage/

karma.conf.js

@@ -28,13 +28,25 @@ module.exports = function (config) {
 		},
 		reporters: [
 			'mocha',
+			'progress',
 			'coverage'
 		],
 
-		// optionally, configure the reporter
 		coverageReporter: {
-			type : 'text',
-			//dir : 'coverage/'
+			// specify a common output directory
+			dir: './coverage',
+			reporters: [
+				// reporters not supporting the `file` property
+				{ type: 'html', subdir: 'report-html' },
+				{ type: 'lcov', subdir: 'report-lcov' },
+				// reporters supporting the `file` property, use `subdir` to directly
+				// output them in the `dir` directory
+				{ type: 'cobertura', subdir: '.', file: 'cobertura.txt' },
+				{ type: 'lcovonly', subdir: '.', file: 'report-lcovonly.txt' },
+				{ type: 'teamcity', subdir: '.', file: 'teamcity.txt' },
+				{ type: 'text', subdir: '.', file: 'text.txt' },
+				{ type: 'text-summary', subdir: '.', file: 'text-summary.txt' },
+			]
 		},
 
 		// use the webpack config