fix: add z.ai coding plan support (#1370)

tests/unit/ai-providers/zai-coding.test.js

@@ -0,0 +1,80 @@
+/**
+ * Tests for ZAICodingProvider
+ */
+
+import { ZAICodingProvider } from '../../../src/ai-providers/zai-coding.js';
+
+describe('ZAICodingProvider', () => {
+	let provider;
+
+	beforeEach(() => {
+		provider = new ZAICodingProvider();
+	});
+
+	describe('constructor', () => {
+		it('should initialize with correct name', () => {
+			expect(provider.name).toBe('Z.ai (Coding Plan)');
+		});
+
+		it('should initialize with correct coding endpoint baseURL', () => {
+			expect(provider.defaultBaseURL).toBe(
+				'https://api.z.ai/api/coding/paas/v4/'
+			);
+		});
+
+		it('should inherit from OpenAICompatibleProvider', () => {
+			expect(provider).toHaveProperty('generateText');
+			expect(provider).toHaveProperty('streamText');
+			expect(provider).toHaveProperty('generateObject');
+		});
+	});
+
+	describe('getRequiredApiKeyName', () => {
+		it('should return ZAI_API_KEY environment variable name', () => {
+			expect(provider.getRequiredApiKeyName()).toBe('ZAI_API_KEY');
+		});
+	});
+
+	describe('isRequiredApiKey', () => {
+		it('should return true as API key is required', () => {
+			expect(provider.isRequiredApiKey()).toBe(true);
+		});
+	});
+
+	describe('getClient', () => {
+		it('should create client with API key', () => {
+			const params = { apiKey: 'test-key' };
+			const client = provider.getClient(params);
+			expect(client).toBeDefined();
+		});
+
+		it('should use coding endpoint by default', () => {
+			const params = {
+				apiKey: 'test-key'
+			};
+			const client = provider.getClient(params);
+			expect(client).toBeDefined();
+			// The provider should use the coding endpoint
+		});
+
+		it('should throw error when API key is missing', () => {
+			expect(() => {
+				provider.getClient({});
+			}).toThrow('Z.ai (Coding Plan) API key is required.');
+		});
+	});
+
+	describe('validateAuth', () => {
+		it('should validate API key is present', () => {
+			expect(() => {
+				provider.validateAuth({});
+			}).toThrow('Z.ai (Coding Plan) API key is required');
+		});
+
+		it('should pass with valid API key', () => {
+			expect(() => {
+				provider.validateAuth({ apiKey: 'test-key' });
+			}).not.toThrow();
+		});
+	});
+});

tests/unit/ai-services-unified.test.js

@@ -261,6 +261,13 @@ jest.unstable_mockModule('../../src/ai-providers/index.js', () => ({
 		getRequiredApiKeyName: jest.fn(() => 'ZAI_API_KEY'),
 		isRequiredApiKey: jest.fn(() => true)
 	})),
+	ZAICodingProvider: jest.fn(() => ({
+		generateText: jest.fn(),
+		streamText: jest.fn(),
+		generateObject: jest.fn(),
+		getRequiredApiKeyName: jest.fn(() => 'ZAI_API_KEY'),
+		isRequiredApiKey: jest.fn(() => true)
+	})),
 	LMStudioProvider: jest.fn(() => ({
 		generateText: jest.fn(),
 		streamText: jest.fn(),