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/**
* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { describe, it, expect, vi } from 'vitest';
import { CodeAssistServer } from './server.js';
import { OAuth2Client } from 'google-auth-library';
vi.mock('google-auth-library');
describe('CodeAssistServer', () => {
it('should be able to be constructed', () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
expect(server).toBeInstanceOf(CodeAssistServer);
});
it('should call the generateContent endpoint', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
const mockResponse = {
response: {
candidates: [
{
index: 0,
content: {
role: 'model',
parts: [{ text: 'response' }],
},
finishReason: 'STOP',
safetyRatings: [],
},
],
},
};
vi.spyOn(server, 'callEndpoint').mockResolvedValue(mockResponse);
const response = await server.generateContent({
model: 'test-model',
contents: [{ role: 'user', parts: [{ text: 'request' }] }],
});
expect(server.callEndpoint).toHaveBeenCalledWith(
'generateContent',
expect.any(Object),
);
expect(response.candidates?.[0]?.content?.parts?.[0]?.text).toBe(
'response',
);
});
it('should call the generateContentStream endpoint', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
const mockResponse = (async function* () {
yield {
response: {
candidates: [
{
index: 0,
content: {
role: 'model',
parts: [{ text: 'response' }],
},
finishReason: 'STOP',
safetyRatings: [],
},
],
},
};
})();
vi.spyOn(server, 'streamEndpoint').mockResolvedValue(mockResponse);
const stream = await server.generateContentStream({
model: 'test-model',
contents: [{ role: 'user', parts: [{ text: 'request' }] }],
});
for await (const res of stream) {
expect(server.streamEndpoint).toHaveBeenCalledWith(
'streamGenerateContent',
expect.any(Object),
);
expect(res.candidates?.[0]?.content?.parts?.[0]?.text).toBe('response');
}
});
it('should call the onboardUser endpoint', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
const mockResponse = {
name: 'operations/123',
done: true,
};
vi.spyOn(server, 'callEndpoint').mockResolvedValue(mockResponse);
const response = await server.onboardUser({
tierId: 'test-tier',
cloudaicompanionProject: 'test-project',
metadata: {},
});
expect(server.callEndpoint).toHaveBeenCalledWith(
'onboardUser',
expect.any(Object),
);
expect(response.name).toBe('operations/123');
});
it('should call the loadCodeAssist endpoint', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
const mockResponse = {
// TODO: Add mock response
};
vi.spyOn(server, 'callEndpoint').mockResolvedValue(mockResponse);
const response = await server.loadCodeAssist({
metadata: {},
});
expect(server.callEndpoint).toHaveBeenCalledWith(
'loadCodeAssist',
expect.any(Object),
);
expect(response).toBe(mockResponse);
});
it('should return 0 for countTokens', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
const response = await server.countTokens({
model: 'test-model',
contents: [{ role: 'user', parts: [{ text: 'request' }] }],
});
expect(response.totalTokens).toBe(0);
});
it('should throw an error for embedContent', async () => {
const auth = new OAuth2Client();
const server = new CodeAssistServer(auth, 'test-project');
await expect(
server.embedContent({
model: 'test-model',
contents: [{ role: 'user', parts: [{ text: 'request' }] }],
}),
).rejects.toThrow();
});
});
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