test: increase code coverage threshold

Author: chintankavathia

karma.shared.cjs

@@ -49,7 +49,7 @@ module.exports.buildConfig = (config, { name, testSuite }) => ({
     reporters: [{ type: 'html' }, { type: 'cobertura' }, { type: 'text-summary' }],
     check: {
       global: {
-        lines: 70 // TODO: increase once every test is migrated
+        lines: 90
       }
     }
   },

projects/element-translate-ng/translate/si-no-translate.spec.ts

@@ -5,7 +5,7 @@
 import { TestBed } from '@angular/core/testing';
 
 import { injectSiTranslateService } from './si-translate.inject';
-import { SiTranslateService } from './si-translate.service';
+import { getBrowserLanguage, SiTranslateService } from './si-translate.service';
 
 describe('SiNoTranslate', () => {
   let service: SiTranslateService;
@@ -36,4 +36,29 @@ describe('SiNoTranslate', () => {
   it('should translate sync', () => {
     expect(service.translateSync('VALUE-3')).toBe('VALUE-3');
   });
+
+  it('should return language code from different browser locales', () => {
+    // Mock different browser languages
+    const originalNavigator = window.navigator;
+
+    // Test German
+    Object.defineProperty(window, 'navigator', {
+      value: { ...originalNavigator, language: 'de-DE' },
+      writable: true
+    });
+    expect(getBrowserLanguage()).toBe('de');
+
+    // Test French
+    Object.defineProperty(window, 'navigator', {
+      value: { ...originalNavigator, language: 'fr-FR' },
+      writable: true
+    });
+    expect(getBrowserLanguage()).toBe('fr');
+
+    // Restore original navigator
+    Object.defineProperty(window, 'navigator', {
+      value: originalNavigator,
+      writable: true
+    });
+  });
 });