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* @license
* Copyright 2025 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { vi, describe, it, expect, beforeEach } from 'vitest';
import {
ReleaseChannel,
getReleaseChannel,
isNightly,
isPreview,
isStable,
_clearCache,
} from './channel.js';
import * as packageJson from './package.js';
vi.mock('./package.js', () => ({
getPackageJson: vi.fn(),
}));
describe('channel', () => {
beforeEach(() => {
vi.resetAllMocks();
_clearCache();
});
describe('isStable', () => {
it('should return true for a stable version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0',
});
await expect(isStable('/test/dir')).resolves.toBe(true);
});
it('should return false for a nightly version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-nightly.1',
});
await expect(isStable('/test/dir')).resolves.toBe(false);
});
it('should return false for a preview version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-preview.1',
});
await expect(isStable('/test/dir')).resolves.toBe(false);
});
it('should return false if package.json is not found', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue(undefined);
await expect(isStable('/test/dir')).resolves.toBe(false);
});
it('should return false if version is not defined', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
});
await expect(isStable('/test/dir')).resolves.toBe(false);
});
});
describe('isNightly', () => {
it('should return false for a stable version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0',
});
await expect(isNightly('/test/dir')).resolves.toBe(false);
});
it('should return true for a nightly version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-nightly.1',
});
await expect(isNightly('/test/dir')).resolves.toBe(true);
});
it('should return false for a preview version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-preview.1',
});
await expect(isNightly('/test/dir')).resolves.toBe(false);
});
it('should return true if package.json is not found', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue(undefined);
await expect(isNightly('/test/dir')).resolves.toBe(true);
});
it('should return true if version is not defined', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
});
await expect(isNightly('/test/dir')).resolves.toBe(true);
});
});
describe('isPreview', () => {
it('should return false for a stable version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0',
});
await expect(isPreview('/test/dir')).resolves.toBe(false);
});
it('should return false for a nightly version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-nightly.1',
});
await expect(isPreview('/test/dir')).resolves.toBe(false);
});
it('should return true for a preview version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-preview.1',
});
await expect(isPreview('/test/dir')).resolves.toBe(true);
});
it('should return false if package.json is not found', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue(undefined);
await expect(isPreview('/test/dir')).resolves.toBe(false);
});
it('should return false if version is not defined', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
});
await expect(isPreview('/test/dir')).resolves.toBe(false);
});
});
describe('getReleaseChannel', () => {
it('should return STABLE for a stable version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0',
});
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.STABLE,
);
});
it('should return NIGHTLY for a nightly version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-nightly.1',
});
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.NIGHTLY,
);
});
it('should return PREVIEW for a preview version', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
version: '1.0.0-preview.1',
});
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.PREVIEW,
);
});
it('should return NIGHTLY if package.json is not found', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue(undefined);
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.NIGHTLY,
);
});
it('should return NIGHTLY if version is not defined', async () => {
vi.spyOn(packageJson, 'getPackageJson').mockResolvedValue({
name: 'test',
});
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.NIGHTLY,
);
});
});
describe('memoization', () => {
it('should only call getPackageJson once for the same cwd', async () => {
const spy = vi
.spyOn(packageJson, 'getPackageJson')
.mockResolvedValue({ name: 'test', version: '1.0.0' });
await expect(isStable('/test/dir')).resolves.toBe(true);
await expect(isNightly('/test/dir')).resolves.toBe(false);
await expect(isPreview('/test/dir')).resolves.toBe(false);
await expect(getReleaseChannel('/test/dir')).resolves.toBe(
ReleaseChannel.STABLE,
);
expect(spy).toHaveBeenCalledTimes(1);
});
it('should call getPackageJson again for a different cwd', async () => {
const spy = vi
.spyOn(packageJson, 'getPackageJson')
.mockResolvedValue({ name: 'test', version: '1.0.0' });
await expect(isStable('/test/dir1')).resolves.toBe(true);
await expect(isStable('/test/dir2')).resolves.toBe(true);
expect(spy).toHaveBeenCalledTimes(2);
});
});
});
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