first commit

packages/@n8n/nodes-langchain/credentials/test/ChromaCloudApi.credentials.test.ts

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+import { ChromaCloudApi } from '../ChromaCloudApi.credentials';
+
+describe('ChromaCloudApi Credential', () => {
+	const chromaCloudApi = new ChromaCloudApi();
+
+	it('should have correct properties', () => {
+		expect(chromaCloudApi.name).toBe('chromaCloudApi');
+		expect(chromaCloudApi.displayName).toBe('ChromaDB Cloud');
+		expect(chromaCloudApi.documentationUrl).toBe('chroma');
+		expect(chromaCloudApi.properties).toHaveLength(4);
+
+		const baseUrlProp = chromaCloudApi.properties.find((p) => p.name === 'baseUrl');
+		expect(baseUrlProp).toBeDefined();
+		expect(baseUrlProp?.default).toBe('https://api.trychroma.com');
+		expect(baseUrlProp?.required).toBe(true);
+
+		expect(chromaCloudApi.test.request.baseURL).toBe('={{$credentials.baseUrl}}');
+		expect(chromaCloudApi.test.request.url).toBe('/api/v2');
+	});
+
+	it('should have correct authentication', () => {
+		expect(chromaCloudApi.authenticate).toBeDefined();
+		expect(chromaCloudApi.authenticate.type).toBe('generic');
+		expect((chromaCloudApi.authenticate.properties as any).headers).toBeDefined();
+		expect((chromaCloudApi.authenticate.properties as any).headers['x-chroma-token']).toBe(
+			'={{$credentials.apiKey}}',
+		);
+	});
+	const chromaCloudApi2 = new ChromaCloudApi();
+	it('should use changed baseUrl in test request when property is modified', () => {
+		const customBaseUrl = 'https://custom.chroma.example.com';
+
+		const baseUrlProp = chromaCloudApi2.properties.find((p) => p.name === 'baseUrl');
+		expect(baseUrlProp).toBeDefined();
+		baseUrlProp!.default = customBaseUrl;
+
+		expect(baseUrlProp!.default).toBe(customBaseUrl);
+
+		const baseURLExpression = chromaCloudApi2.test.request.baseURL;
+		expect(baseURLExpression).toBe('={{$credentials.baseUrl}}');
+
+		const credentials = { baseUrl: baseUrlProp!.default };
+		const resolvedBaseURL = baseURLExpression?.replace(
+			/=\{\{\$credentials\.(\w+)\}\}/,
+			(_, key) => credentials[key as keyof typeof credentials],
+		);
+		expect(resolvedBaseURL).toBe(customBaseUrl);
+	});
+});