[INTERNAL] Karma: Upgrade dependencies / Exclude thirdparty from cove…

…rage

karma-coverage to solve regression with karma-coverage v2.0.2:
karma-runner/karma-coverage#418

Use new karma-ui5 option "failOnEmptyTestPage".

Exclude thirdparty code from coverage preprocessing.
We don't want to collect coverage scores from thirdparty code.
Also, with karma-coverage v2.0.2+ there is an issue with instrumenting
sinon-4.js, as it contains a very large inline source map that causes
a heap out of memory error in @babel/core.

Change-Id: I8b74ce6fc6b149d0acc49af2275aa84320346562

lib/test/karma.conf.js

@@ -53,6 +53,43 @@ module.exports = function(config) {
 
 	};
 
+	/*
+	 * Some libraries require individual patterns in order to exclude thirdparty files.
+	 *
+	 * Defining exclude patterns is not straight-forward, see:
+	 * https://github.com/karma-runner/karma/issues/508#issuecomment-45029950
+	 *
+	 * Only single folder names can be excluded, not full paths like sap/ui/thirdparty.
+	 * Also sub-folders are not excluded, so those folder names need to be defined separately.
+	 *
+	 */
+	var coveragePatterns = {
+		/*
+		 * ace (sap/ui/codeeditor/js/ace)
+		 * snippets (sap/ui/codeeditor/js/ace/snippets)
+		 */
+		"sap.ui.codeeditor": "{src/*.js,src/**/!(ace|snippets)/*.js}",
+		/*
+		 * thirdparty (sap/ui/thirdparty)
+		 * hyphenopoly (sap/ui/thirdparty/hyphenopoly)
+		 * jqueryui (sap/ui/thirdparty/jqueryui)
+		 * js (sap/ui/thirdparty/mobiscroll/js)
+		 */
+		"sap.ui.core": "{src/*.js,src/**/!(thirdparty|hyphenopoly|jqueryui|mobiscroll|js)/*.js}",
+		/*
+		 * thirdparty (sap/ui/documentation/sdk/thirdparty)
+		 * google-code-prettify (sap/ui/documentation/sdk/thirdparty/google-code-prettify)
+		 */
+		"sap.ui.documentation": "{src/*.js,src/**/!(thirdparty|google-code-prettify)/*.js}",
+		/*
+		 * thirdparty (sap/ui/integration/thirdparty)
+		 * webcomponents (sap/ui/integration/thirdparty/webcomponents)
+		 * webcomponentsjs (sap/ui/integration/thirdparty/webcomponents/webcomponentsjs)
+		 * bundles (sap/ui/integration/thirdparty/webcomponents/webcomponentsjs/bundles)
+		 */
+		"sap.ui.integration": "{src/*.js,src/**/!(thirdparty|webcomponents|webcomponentsjs|bundles)/*.js}"
+	};
+
 	var chromeFlags = [
 		"--window-size=1280,1024"
 	];
@@ -71,7 +108,8 @@ module.exports = function(config) {
 					key: "hidepassed",
 					value: true
 				}
-			]
+			],
+			failOnEmptyTestPage: true
 		},
 
 		customLaunchers: {
@@ -168,10 +206,11 @@ module.exports = function(config) {
 
 	// CLI arg --coverage
 	if (config.coverage) {
+		var coveragePattern = coveragePatterns[config.lib] || "src/**/*.js";
+		var preprocessors = {};
+		preprocessors[coveragePattern] = ["coverage"];
 		config.set({
-			preprocessors: {
-				"src/**/*.js": ["coverage"]
-			},
+			preprocessors: preprocessors,
 
 			reporters: config.reporters.concat(["coverage"]),