tns test init --help doesn't show the available unit testing frameworks as the constant constants.TESTING_FRAMEWORKS that is used from the test-init.md file was deleted. On the other side, test-dependencies.json file was introduced in order to list all supported frameworks. So, this PR gets the supported unit testing framework names from test-dependencies.json file and prints them from test-init.md file.

Rel to: #5113

Author: Fatme

docs/man_pages/project/testing/test-init.md

@@ -17,7 +17,7 @@ General | `$ tns test init [--framework <Framework>]`
 
 ### Options
 
-* `--framework <Framework>` - Sets the unit testing framework to install. The following frameworks are available: <%= formatListOfNames(constants.TESTING_FRAMEWORKS, 'and') %>.
+* `--framework <Framework>` - Sets the unit testing framework to install. The following frameworks are available: <%= formatListOfNames(getUnitTestingFrameworkNames(), 'and') %>.
 
 <% if(isHtml) { %>
 

lib/common/services/micro-templating-service.ts

@@ -6,7 +6,8 @@ import { formatListOfNames } from '../helpers';
 export class MicroTemplateService implements IMicroTemplateService {
 	private dynamicCallRegex: RegExp;
 
-	constructor(private $injector: IInjector) {
+	constructor(private $injector: IInjector,
+		private $testInitializationService: ITestInitializationService) {
 		// Injector's dynamicCallRegex doesn't have 'g' option, which we need here.
 		// Use ( ) in order to use $1 to get whole expression later
 		this.dynamicCallRegex = new RegExp(util.format("(%s)", this.$injector.dynamicCallRegex.source), "g");
@@ -37,6 +38,7 @@ export class MicroTemplateService implements IMicroTemplateService {
 		localVariables["isConsole"] = !isHtml;
 		localVariables["isHtml"] = isHtml;
 		localVariables["formatListOfNames"] = formatListOfNames;
+		localVariables["getUnitTestingFrameworkNames"] = this.$testInitializationService.getFrameworkNames;
 		localVariables["isJekyll"] = false;
 
 		return localVariables;

lib/definitions/project.d.ts

@@ -376,6 +376,7 @@ interface ITestExecutionService {
 
 interface ITestInitializationService {
 	getDependencies(framework: string): IDependencyInformation[];
+	getFrameworkNames(): string[];
 }
 
 /**

lib/services/test-initialization-service.ts

@@ -1,4 +1,5 @@
 import * as path from "path";
+import * as fs from "fs";
 import { cache } from "../common/decorators";
 
 export class TestInitializationService implements ITestInitializationService {
@@ -27,6 +28,21 @@ export class TestInitializationService implements ITestInitializationService {
 
 		return targetFrameworkDependencies;
 	}
+
+	/**
+	 * This method is used from test-init.md file so it is not allowed to use "this" inside the method's body.
+	 */
+	@cache()
+	public getFrameworkNames(): string[] {
+		const configsPath = path.join(__dirname, "..", "..", "config");
+		const dependenciesPath = path.join(configsPath, "test-dependencies.json");
+		const allDependencies: { name: string, framework?: string }[] = JSON.parse(fs.readFileSync(dependenciesPath, { encoding: 'utf-8'}));
+		const frameworks = _.uniqBy(allDependencies, "framework")
+			.map(item => item && item.framework)
+			.filter(item => item);
+
+		return frameworks;
+	}
 }
 
 $injector.register("testInitializationService", TestInitializationService);