如何检查两个文件是否具有相同的内容?

2022-01-25 00:00:00 node.js compare javascript mocha.js should.js

我正在使用 mocha/supertest/should.js 来测试 REST 服务

I am using mocha/supertest/should.js to test REST Service

GET/files/<hash> 将文件作为流返回.

如何在 should.js 中断言文件内容相同?

How can I assert in should.js that file contents are the same?

it('should return file as stream', function (done) {
    var writeStream = fs.createWriteStream('test/fixtures/tmp.json');
    
    var req = api.get('/files/676dfg1430af3595');
    req.on('end', function(){
       var tmpBuf = fs.readFileSync('test/fixtures/tmp.json');
       var testBuf = fs.readFileSync('test/fixtures/test.json');
    
       // How to assert with should.js file contents are the same (tmpBuf == testBuf )
       // ...
    
       done();
    });
});

推荐答案

令人惊讶的是，没有人建议 Buffer.equals.从 v0.11 开始，这似乎是最快和最简单的方法.

Surprisingly, no one has suggested Buffer.equals. That seems to be the fastest and simplest approach and has been around since v0.11.

所以你的代码会变成 tmpBuf.equals(testBuf)

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