'use strict';

const { test, beforeEach, afterEach } = require('node:test');
const assert = require('node:assert/strict');
const fs = require('node:fs');
const os = require('node:os');
const path = require('node:path');
const { writeOutput } = require('../output');

let workspace;

beforeEach(() => {
    workspace = fs.mkdtempSync(path.join(os.tmpdir(), 'calc-version-'));
});

afterEach(() => {
    fs.rmSync(workspace, { recursive: true, force: true });
});

test('writeOutput 將 name=value 附加寫入輸出檔', () => {
    const file = path.join(workspace, 'output');
    writeOutput('version', '1.2.3', file);
    assert.equal(fs.readFileSync(file, 'utf8'), 'version=1.2.3\n');
});

test('writeOutput 以附加方式保留既有內容', () => {
    const file = path.join(workspace, 'output');
    fs.writeFileSync(file, 'existing=1\n');
    writeOutput('version', '1.2.3', file);
    assert.equal(fs.readFileSync(file, 'utf8'), 'existing=1\nversion=1.2.3\n');
});

test('writeOutput 在未提供輸出檔時丟出錯誤', () => {
    assert.throws(() => writeOutput('version', '1.2.3', undefined), /GITHUB_OUTPUT 未設定/);
});