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/**
* Tests for API client.
*/
import { describe, it, expect, vi, beforeEach } from 'vitest';
import { submitTranscription, getJobStatus, downloadScore } from '../../api/client';
// Mock fetch globally
const mockFetch = vi.fn();
global.fetch = mockFetch;
describe('API Client', () => {
beforeEach(() => {
mockFetch.mockClear();
});
describe('submitTranscription', () => {
it('should submit a YouTube URL for transcription', async () => {
const mockResponse = {
job_id: 'test-job-123',
status: 'queued',
created_at: '2025-01-01T00:00:00Z',
estimated_duration_seconds: 120,
websocket_url: 'ws://localhost:8000/api/v1/jobs/test-job-123/stream',
};
mockFetch.mockResolvedValueOnce({
ok: true,
status: 201,
json: async () => mockResponse,
});
const result = await submitTranscription('https://www.youtube.com/watch?v=dQw4w9WgXcQ');
expect(mockFetch).toHaveBeenCalledWith(
expect.stringContaining('/api/v1/transcribe'),
expect.objectContaining({
method: 'POST',
headers: expect.objectContaining({
'Content-Type': 'application/json',
}),
body: expect.stringContaining('youtube_url'),
})
);
expect(result).toEqual(mockResponse);
});
it('should handle invalid YouTube URL', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 400,
json: async () => ({
detail: 'Invalid YouTube URL format',
}),
});
await expect(
submitTranscription('https://invalid.com/video')
).rejects.toThrow();
});
it('should handle video unavailable error', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 422,
json: async () => ({
detail: 'Video too long (max 15 minutes)',
}),
});
await expect(
submitTranscription('https://www.youtube.com/watch?v=long-video')
).rejects.toThrow();
});
it('should handle network errors', async () => {
mockFetch.mockRejectedValueOnce(new Error('Network error'));
await expect(
submitTranscription('https://www.youtube.com/watch?v=dQw4w9WgXcQ')
).rejects.toThrow('Network error');
});
it('should include custom options', async () => {
mockFetch.mockResolvedValueOnce({
ok: true,
status: 201,
json: async () => ({}),
});
await submitTranscription('https://www.youtube.com/watch?v=dQw4w9WgXcQ', {
instruments: ['piano', 'guitar'],
});
const callBody = JSON.parse(mockFetch.mock.calls[0][1].body);
expect(callBody.options).toEqual({ instruments: ['piano', 'guitar'] });
});
});
describe('getJobStatus', () => {
it('should fetch job status', async () => {
const mockStatus = {
job_id: 'test-job-123',
status: 'processing',
progress: 50,
current_stage: 'transcription',
status_message: 'Transcribing audio',
};
mockFetch.mockResolvedValueOnce({
ok: true,
status: 200,
json: async () => mockStatus,
});
const result = await getJobStatus('test-job-123');
expect(mockFetch).toHaveBeenCalledWith(
expect.stringContaining('/api/v1/jobs/test-job-123')
);
expect(result).toEqual(mockStatus);
});
it('should handle job not found', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 404,
json: async () => ({
detail: 'Job not found',
}),
});
await expect(getJobStatus('nonexistent-id')).rejects.toThrow();
});
it('should handle completed job', async () => {
const mockStatus = {
job_id: 'test-job-123',
status: 'completed',
progress: 100,
result_url: '/api/v1/scores/test-job-123',
};
mockFetch.mockResolvedValueOnce({
ok: true,
status: 200,
json: async () => mockStatus,
});
const result = await getJobStatus('test-job-123');
expect(result.status).toBe('completed');
expect(result.result_url).toBeDefined();
});
it('should handle failed job with error details', async () => {
const mockStatus = {
job_id: 'test-job-123',
status: 'failed',
progress: 25,
error: {
message: 'Download failed',
stage: 'audio_download',
},
};
mockFetch.mockResolvedValueOnce({
ok: true,
status: 200,
json: async () => mockStatus,
});
const result = await getJobStatus('test-job-123');
expect(result.status).toBe('failed');
expect(result.error).toBeDefined();
if (!result.error) throw new Error('Expected error details');
expect(result.error.message).toBe('Download failed');
});
});
describe('downloadScore', () => {
it('should download MusicXML score', async () => {
const mockXML = '<?xml version="1.0"?><score-partwise></score-partwise>';
mockFetch.mockResolvedValueOnce({
ok: true,
status: 200,
text: async () => mockXML,
headers: new Headers({
'content-type': 'application/vnd.recordare.musicxml+xml',
}),
});
const result = await downloadScore('test-job-123');
expect(mockFetch).toHaveBeenCalledWith(
expect.stringContaining('/api/v1/scores/test-job-123')
);
expect(result).toBe(mockXML);
});
it('should handle score not available', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 404,
json: async () => ({
detail: 'Score not available',
}),
});
await expect(downloadScore('test-job-123')).rejects.toThrow();
});
it('should handle incomplete job', async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 404,
json: async () => ({
detail: 'Score not available',
}),
});
await expect(downloadScore('processing-job')).rejects.toThrow();
});
});
describe('WebSocket connection', () => {
it('should establish WebSocket connection', () => {
const mockWS = {
addEventListener: vi.fn(),
close: vi.fn(),
readyState: WebSocket.OPEN,
};
global.WebSocket = vi.fn(() => mockWS) as any;
const ws = new WebSocket('ws://localhost:8000/api/v1/jobs/test-job-123/stream');
expect(WebSocket).toHaveBeenCalledWith(
expect.stringContaining('test-job-123')
);
expect(ws.readyState).toBe(WebSocket.OPEN);
});
it('should handle WebSocket messages', () => {
const mockWS = {
addEventListener: vi.fn(),
close: vi.fn(),
};
global.WebSocket = vi.fn(() => mockWS) as any;
const ws = new WebSocket('ws://localhost:8000/api/v1/jobs/test-job-123/stream');
const onMessage = vi.fn();
ws.addEventListener('message', onMessage);
expect(mockWS.addEventListener).toHaveBeenCalledWith('message', onMessage);
});
it('should handle WebSocket errors', () => {
const mockWS = {
addEventListener: vi.fn(),
close: vi.fn(),
};
global.WebSocket = vi.fn(() => mockWS) as any;
const ws = new WebSocket('ws://localhost:8000/api/v1/jobs/test-job-123/stream');
const onError = vi.fn();
ws.addEventListener('error', onError);
expect(mockWS.addEventListener).toHaveBeenCalledWith('error', onError);
});
});
});
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