fix: pass appPath to the env from karma.conf.js

Two different webpack compilations are started on `tns test` command - the one from `karma-webpack` and the second one from `nativescript-dev-webpack`. As the karma's webpack doesn't provide appPath to the env and there is a hardcoded `appPath` inside `webpack.config.js` (to `src` for example), it works only with that hardcoded path.

Rel to: #5070

Author: Fatme

lib/services/test-execution-service.ts

@@ -6,6 +6,7 @@ import { RunController } from "../controllers/run-controller";
 interface IKarmaConfigOptions {
 	debugBrk: boolean;
 	debugTransport: boolean;
+	appPath: string;
 }
 
 export class TestExecutionService implements ITestExecutionService {
@@ -156,6 +157,7 @@ export class TestExecutionService implements ITestExecutionService {
 		karmaConfig.projectDir = projectData.projectDir;
 		karmaConfig.bundle = true;
 		karmaConfig.debugBrk = this.$options.debugBrk;
+		karmaConfig.appPath = projectData.getAppDirectoryRelativePath();
 		karmaConfig.platform = platform.toLowerCase();
 		this.$logger.debug(JSON.stringify(karmaConfig, null, 4));
 

resources/test/karma.conf.js

@@ -99,6 +99,7 @@ function setWebpack(config, options) {
     const env = {};
     env[config.platform] = true;
     env.sourceMap = config.debugBrk;
+    env.appPath = config.appPath;
     options.webpack = require('./webpack.config')(env);
     delete options.webpack.entry;
     delete options.webpack.output.libraryTarget;