/* eslint-disable @typescript-eslint/no-explicit-any */
import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
import * as path from 'path';
import type { PathLike } from 'fs';
// ESM-safe fs mocks with throw capabilities
let existsSyncMock: (p: PathLike) => boolean;
let readFileSyncMock: (p: any, enc?: any) => string;
vi.mock('fs', async () => {
const actual = await vi.importActual<typeof import('fs')>('fs');
const existsDelegate: typeof actual.existsSync = (p: PathLike) =>
existsSyncMock ? existsSyncMock(p) : actual.existsSync(p);
const readDelegate: typeof actual.readFileSync = (p: any, enc?: any) =>
readFileSyncMock ? readFileSyncMock(p, enc) : (actual.readFileSync as any)(p, enc);
return { ...actual, existsSync: existsDelegate, readFileSync: readDelegate as any };
});
import { isESMProject, hasTsConfigPaths } from '../../src/utils/config-transformer.js';
describe('utils/config-transformer.throw.edge', () => {
const projDir = path.resolve(process.cwd(), 'proj-throw-edge');
const programDir = path.join(projDir, 'src');
beforeEach(() => {
existsSyncMock = () => false;
readFileSyncMock = () => '';
});
afterEach(() => {
vi.restoreAllMocks();
});
it('isESMProject: existsSync throws for package.json and tsconfig; function does not throw and returns false', () => {
const pj1 = path.join(programDir, 'package.json');
const pj2 = path.join(projDir, 'package.json');
const tc1 = path.join(programDir, 'tsconfig.json');
const tc2 = path.join(projDir, 'tsconfig.json');
existsSyncMock = (p) => {
const s = String(p);
if (s === pj1 || s === pj2 || s === tc1 || s === tc2) throw new Error('fs exists error');
return false;
};
// readFileSync should not be called, but if it is, make it throw too
readFileSyncMock = () => {
throw new Error('fs read error');
};
expect(isESMProject(path.join(programDir, 'main.ts'), projDir)).toBe(false);
});
it('isESMProject: readFileSync throws for package.json and tsconfig; function remains safe', () => {
const pj = path.join(programDir, 'package.json');
const tc = path.join(programDir, 'tsconfig.json');
existsSyncMock = (p) => {
const s = String(p);
return s === pj || s === tc;
};
readFileSyncMock = () => {
throw new Error('fs read error');
};
expect(isESMProject(path.join(programDir, 'main.ts'), projDir)).toBe(false);
});
it('hasTsConfigPaths: existsSync throws -> returns false', () => {
const tc = path.join(projDir, 'tsconfig.json');
existsSyncMock = (p) => {
const s = String(p);
if (s === tc) throw new Error('exists throw');
return false;
};
readFileSyncMock = () => '{ "compilerOptions": { "paths": {} } }';
expect(hasTsConfigPaths(projDir)).toBe(false);
});
it('hasTsConfigPaths: readFileSync throws -> returns false', () => {
const tc = path.join(projDir, 'tsconfig.json');
existsSyncMock = (p) => String(p) === tc;
readFileSyncMock = () => {
throw new Error('read throw');
};
expect(hasTsConfigPaths(projDir)).toBe(false);
});
});
