import { MockInstance } from 'vitest';
import { initializeTelemetry } from './init.js';
import { TelemetryConfig } from './types.js';
const mocks = vi.hoisted(() => ({
mockGetConfig: vi.fn(),
MockNoOpTelemetryProvider: vi.fn(),
}));
vi.mock('../config.js', () => ({
getConfig: mocks.mockGetConfig,
}));
vi.mock('./noop.js', () => ({
NoOpTelemetryProvider: mocks.MockNoOpTelemetryProvider,
}));
describe('initializeTelemetry', () => {
const defaultTelemetryConfig: TelemetryConfig = {
provider: 'noop',
};
let consoleErrorSpy: MockInstance;
let consoleWarnSpy: MockInstance;
beforeEach(() => {
vi.clearAllMocks();
// Suppress console output
consoleErrorSpy = vi.spyOn(console, 'error').mockImplementation(() => {});
consoleWarnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {});
// Default mock implementations
mocks.MockNoOpTelemetryProvider.mockImplementation(() => ({
initialize: vi.fn(),
recordMetric: vi.fn(),
}));
});
afterEach(() => {
consoleErrorSpy.mockRestore();
consoleWarnSpy.mockRestore();
});
// NoOp tests
it('returns NoOpTelemetryProvider when provider is "noop"', () => {
mocks.mockGetConfig.mockReturnValue({
telemetry: { ...defaultTelemetryConfig, provider: 'noop' },
});
initializeTelemetry();
expect(mocks.MockNoOpTelemetryProvider).toHaveBeenCalled();
});
it('returns NoOpTelemetryProvider for unknown provider with warning', () => {
mocks.mockGetConfig.mockReturnValue({
telemetry: { ...defaultTelemetryConfig, provider: 'unknown-provider' },
});
initializeTelemetry();
expect(mocks.MockNoOpTelemetryProvider).toHaveBeenCalled();
expect(consoleErrorSpy).toHaveBeenCalled();
expect(consoleWarnSpy).toHaveBeenCalledWith('Falling back to NoOp telemetry provider');
});
});
