test: add unit tests that correct alias is added depending if @nativescript/core is at the root of node_modules

Author: Fatme

templates/webpack.config.spec.ts

@@ -1,7 +1,6 @@
 import * as proxyquire from 'proxyquire';
 import * as nsWebpackIndex from '../index';
 import { join } from 'path';
-import { skipPartiallyEmittedExpressions } from 'typescript';
 // With noCallThru enabled, `proxyquire` will not fall back to requiring the real module to populate properties that are not mocked.
 // This allows us to mock packages that are not available in node_modules.
 // In case you want to enable fallback for a specific object, just add `'@noCallThru': false`.
@@ -359,6 +358,27 @@ describe('webpack.config.js', () => {
                     expect(config.output.sourceMapFilename).toEqual(join("..", newSourceMapFolder, "[file].map"));
                 });
             });
+
+            describe(`alias for webpack.${type}.js (${platform})`, () => {
+                it('should add alias when @nativescript/core is at the root of node_modules', () => {
+                    nativeScriptDevWebpack.hasRootLevelScopedModules = () => true;
+                    const input = getInput({ platform });
+                    const config = webpackConfig(input);
+                    expect(config.resolve.alias['tns-core-modules']).toBe('@nativescript/core');
+                    if (type === 'angular') {
+                        expect(config.resolve.alias['nativescript-angular']).toBe('@nativescript/angular');
+                    }
+                });
+                it('shouldn\'t add alias when @nativescript/core is not at the root of node_modules', () => {
+                    nativeScriptDevWebpack.hasRootLevelScopedModules = () => false;
+                    const input = getInput({ platform });
+                    const config = webpackConfig(input);
+                    expect(config.resolve.alias['tns-core-modules']).toBeUndefined();
+                    if (type === 'angular') {
+                        expect(config.resolve.alias['nativescript-angular']).toBeUndefined();
+                    }
+                });
+            });
         });
     });
 });