有没有办法在Flutter测试中伪造DateTime.now()? [英] Is there a way to fake DateTime.now() in a Flutter test?
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问题描述
我可以将时间传递给我的窗口小部件,但是应该让我的窗口小部件本身实例化时间,而不是从父窗口小部件接收DateTime.
I can pass in a time to my widget, but my widget is supposed to be instantiating the time in itself, not receiving a DateTime from a parent widget.
推荐答案
extension CustomizableDateTime on DateTime {
static DateTime customTime;
static DateTime get current {
if (customTime != null)
return customTime;
else
return DateTime.now();
}
}
只需在生产代码中使用 CustomizableDateTime.current
.您可以在测试中修改返回的值,例如: CustomizableDateTime.customTime = DateTime.parse("1969-07-20 20:18:04");
.无需使用第三方库.
Just use CustomizableDateTime.current
in the production code. You can modify the returned value in tests like that: CustomizableDateTime.customTime = DateTime.parse("1969-07-20 20:18:04");
. There is no need to use third party libraries.
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