json-treeify/test/3.json-treeify-1.test.js

json-treeify: Get tree string(├└│─) via json, support browser|node, browser none dependencies!

let should = require('should');
let treeStr = require('../lib/json-treeify');
// correct
let testJson = {
    x: {
        y: [
            0,
            1,
            {
                z: 'helloZ中文中文中文中文中文中文'
            },
            [
                0,
                1,
                2,
                3
            ]
        ],
        z(a){}
    }
};

// circularObj 循环自引用
let circularObj = {};
circularObj.circularRef = circularObj;
circularObj.list = [circularObj, circularObj];
circularObj.a = {b: circularObj};


describe('Test \'./lib/json-treeify.js\':', () => {

    it('convert json to tree-string without throwing error, and return a string', function(done) {
        should.doesNotThrow(() => {
            treeStr('');
            treeStr();
            treeStr(null);
            treeStr(undefined);
        });

        should.doesNotThrow(() => {
            treeStr(testJson, {space: '\t'});
        });

        should.doesNotThrow(() => {
            treeStr(testJson, {needValueOut: false, vSpace: -1, space: -1, jsonName: ''});
        });

        should.doesNotThrow(() => {
            treeStr(testJson, {needValueOut: false, vSpace: 4, space: 9, jsonName: ''});
        });

        should.doesNotThrow(() => {
            treeStr(testJson, {needValueOut: false, vSpace: NaN, space: 9, jsonName: ''});
        });

        should.equal('string', typeof treeStr(testJson, null));

        should.equal(true, treeStr(testJson, {msReturnChar: true}).includes('\r'));
        
        done && done.call(this);
    });

    it('convert a circularObj to tree-string without throwing error', function(done) {
        should.doesNotThrow(() => {
            treeStr(circularObj);
        });

        done && done.call(this);
    });

    it('undefined,null,primitive type return a string', function(done) {
        should.equal('string', typeof treeStr(1));
        should.equal('string', typeof treeStr({}));
        should.equal('string', typeof treeStr([]));
        should.equal('string', typeof treeStr(null));
        should.equal('string', typeof treeStr(undefined));
        should.equal('string', typeof treeStr('abd13'));

        done && done.call(this);
    });

});