assert.deepStrictEqual(actual, expected[, message])
测试 actual
和 expected
参数之间的深度相等。"深度" 相等意味着子对象的可枚举 "自有" 属性也按以下规则递归计算。
¥Tests for deep equality between the actual
and expected
parameters.
"Deep" equality means that the enumerable "own" properties of child objects
are recursively evaluated also by the following rules.