Add tests

src/shared/__tests__/vsCodeSelectorUtils.test.ts

@@ -0,0 +1,44 @@
+import { stringifyVsCodeLmModelSelector, SELECTOR_SEPARATOR } from '../vsCodeSelectorUtils';
+import { LanguageModelChatSelector } from 'vscode';
+
+describe('vsCodeSelectorUtils', () => {
+	describe('stringifyVsCodeLmModelSelector', () => {
+		it('should join all defined selector properties with separator', () => {
+			const selector: LanguageModelChatSelector = {
+				vendor: 'test-vendor',
+				family: 'test-family',
+				version: 'v1',
+				id: 'test-id'
+			};
+
+			const result = stringifyVsCodeLmModelSelector(selector);
+			expect(result).toBe('test-vendor/test-family/v1/test-id');
+		});
+
+		it('should skip undefined properties', () => {
+			const selector: LanguageModelChatSelector = {
+				vendor: 'test-vendor',
+				family: 'test-family'
+			};
+
+			const result = stringifyVsCodeLmModelSelector(selector);
+			expect(result).toBe('test-vendor/test-family');
+		});
+
+		it('should handle empty selector', () => {
+			const selector: LanguageModelChatSelector = {};
+
+			const result = stringifyVsCodeLmModelSelector(selector);
+			expect(result).toBe('');
+		});
+
+		it('should handle selector with only one property', () => {
+			const selector: LanguageModelChatSelector = {
+				vendor: 'test-vendor'
+			};
+
+			const result = stringifyVsCodeLmModelSelector(selector);
+			expect(result).toBe('test-vendor');
+		});
+	});
+});