为CodeMirror编写测试

Question

我想为CodeMirror编写一个简单的测试

test(' codemirror ', () => {

    let text = document.createElement("div");

    let settings = {}

    codemirror(text, { ...settings, value: '' });
});

然而，当我运行这个程序时，我得到：

TypeError: document.body.createTextRange不是一个函数 在range (A:\frontend\node_modules\codemirror\lib\codemirror.js:94:25) at hasBadBidiRects (A:\frontend\node_modules\codemirror\lib\codemirror.js:1343:12) at buildLineContent (A:\frontend\node_modules\codemirror\lib\codemirror.js:1838:9) at updateExternalMeasurement (A:\frontend\node_modules\codemirror\lib\codemirror.js:2442:28) at prepareMeasureForLine (A:\frontend\node_modules\codemirror\lib\codemirror.js:2478:14)(A:\frontend\node_modules\codemirror\lib\codemirror.js:2451:34) at endOperation_R2 (A:\frontend\node_modules\codemirror\lib\codemirror.js:3766:24) at endOperations (A:\frontend\node_modules\codemirror\lib\codemirror.js:3732:7) at A:\frontend\node_modules\codemirror\lib\codemirror.js:3719:5 at finishOperation (A:\frontend\node_modules\codemirror\lib\codemirror.js:2132:5) at新代码镜的(A:\frontend\node_modules\codemirror\lib\codemirror.js:3716:3) endOperation $1 (A:\frontend\node_modules\codemirror\lib\codemirror.js:7448:3)在CodeMirror$1 (A:\frontend\node_modules\codemirror\lib\codemirror.js:7389:49)

我在这里做错什么了？

我的进口是这样的：

import codemirror from 'codemirror';

我用的是"codemirror"："5.25.0"，

Answer 1

我设法删除了一些函数，现在它开始工作了。不过，这不是一个很好的解决办法：

test(' codemirror test ', () => {

    let div = document.createElement("div");

    document.body.createTextRange = (elem) => {
        let textRange = {
            getBoundingClientRect: ()=>1,
            getClientRects: ()=>1
        }
        return textRange;
    }

    codemirror(div);
});