是否可以通过NSubstitute检查已接电话数量是否在一定范围内?
我想做类似的事情:
myMock.Received(r => r > 1 && r <= 5).MyMethod();
或者,如果我可以得到准确的接听电话数量,那么同样可以完成这项工作。我是单元测试重试和超时,并且基于系统负载和其他测试,运行重试的次数在单元测试执行期间可能会有所不同。
答案 0 :(得分:1)
NSubstitute API当前不完全支持此功能(但这是一个好主意!)。
使用unofficial .ReceivedCalls
扩展名可以做到这一点:
var calls = myMock.ReceivedCalls()
.Count(x => x.GetMethodInfo().Name == nameof(myMock.MyMethod));
Assert.InRange(calls, 1, 5);
使用Quantity
命名空间中的自定义NSubstitute.ReceivedExtensions
来实现此目的的更好方法:
// DISCLAIMER: draft code only. Review and test before using.
public class RangeQuantity : Quantity {
private readonly int min;
private readonly int maxInclusive;
public RangeQuantity(int min, int maxInclusive) {
// TODO: validate args, min < maxInclusive.
this.min = min;
this.maxInclusive = maxInclusive;
}
public override string Describe(string singularNoun, string pluralNoun) =>
$"between {min} and {maxInclusive} (inclusive) {((maxInclusive == 1) ? singularNoun : pluralNoun)}";
public override bool Matches<T>(IEnumerable<T> items) {
var count = items.Count();
return count >= min && count <= maxInclusive;
}
public override bool RequiresMoreThan<T>(IEnumerable<T> items) => items.Count() < min;
}
然后:
myMock.Received(new RangeQuantity(3,5)).MyMethod();
(请注意,您需要为此using NSubstitute.ReceivedExtensions;
。)