import { MockInstance } from 'vitest';
import { stubDefaultEnvVars } from '../testShared.js';
import { initializeTelemetry } from './init.js';
const mocks = vi.hoisted(() => ({
MockNoOpTelemetryProvider: vi.fn(),
}));
vi.mock('./noop.js', () => ({
NoOpTelemetryProvider: mocks.MockNoOpTelemetryProvider,
}));
describe('initializeTelemetry', () => {
let consoleErrorSpy: MockInstance;
let consoleWarnSpy: MockInstance;
beforeEach(() => {
vi.clearAllMocks();
vi.unstubAllEnvs();
stubDefaultEnvVars();
// 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();
vi.unstubAllEnvs();
});
// NoOp tests
it('returns NoOpTelemetryProvider when provider is "noop"', () => {
vi.stubEnv('TELEMETRY_PROVIDER', 'noop');
initializeTelemetry();
expect(mocks.MockNoOpTelemetryProvider).toHaveBeenCalled();
});
it('returns NoOpTelemetryProvider when provider is "custom" and module path is invalid', () => {
vi.stubEnv('TELEMETRY_PROVIDER', 'custom');
vi.stubEnv('TELEMETRY_PROVIDER_CONFIG', '{"module":"./invalid-module.js"}');
initializeTelemetry();
expect(mocks.MockNoOpTelemetryProvider).toHaveBeenCalled();
expect(consoleErrorSpy).toHaveBeenCalled();
expect(consoleWarnSpy).toHaveBeenCalledWith('Falling back to NoOp telemetry provider');
});
});
