wgc/dist/test/router/utils.test.js

The official CLI tool to manage the GraphQL Federation Platform Cosmo

import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { existsSync } from 'node:fs';
import { mkdir, rm } from 'node:fs/promises';
import { beforeAll, describe, expect, test } from 'vitest';
import { writeFeatureFlagConfigToFile, featureFlagsDir } from '../../src/commands/router/utils.js';
describe('writeFeatureFlagConfigToFile', () => {
    const basePath = join(tmpdir(), featureFlagsDir);
    beforeAll(async () => {
        if (existsSync(basePath)) {
            // Cleanup existing data, if any
            await rm(basePath, { recursive: true });
        }
        await mkdir(basePath, { recursive: true });
    });
    test('that when no special characters are found, it is written to the base path', async () => {
        const name = 'feature-flag';
        expect(existsSync(join(basePath, `${name}.json`))).toBe(false);
        await writeFeatureFlagConfigToFile(basePath, name, '');
        expect(existsSync(join(basePath, `${name}.json`))).toBe(true);
    });
    test.each(['feature/name', 'feature.name', 'feature/../name', '../name'])('that it throws when name contains invalid characters', async (name) => {
        expect(existsSync(join(basePath, `${name}.json`))).toBe(false);
        await expect(async () => await writeFeatureFlagConfigToFile(basePath, name, '')).rejects.toThrowError(`The feature flag name "${name}" contains invalid characters.`);
        expect(existsSync(join(basePath, `${name}.json`))).toBe(false);
    });
});
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