设置多个属性时 Mock Setup() 不起作用

Question

我有这个Moq:

readonly Mock<IHeartbeat> _mockIHeartbeat = new Mock<IHeartbeat>();

[Fact]
public async Task TestWatermarkCheck()
{
    WatermarkOffsets watermarkOffsets = new WatermarkOffsets(1, 10);
    Offset offset = new Offset(5);
    _mockIHeartbeat .Setup(x => x.GetWatermarks()).Returns(watermarkOffsets);
    _mockIHeartbeat .Setup(x => x.GetOffset()).Returns(offset);
    HealthCheckContext context = new HealthCheckContext();
    CancellationToken cancellationToken = default;
    Watermark watermark = new Watermark(_mockIHeartbeat.Object);
    HealthCheckResult watermarkHealthCheckResult = await watermark.CheckHealthAsync(context, cancellationToken);
watermarkHealthCheckResult.Status.ToString().Should().Be(HealthCheckResult.Healthy().Status.ToString());
    watermarkHealthCheckResult.Description.ToString().Should().Be("Low: 1 High: 10 Offset: 5");
}

这是 SUT：

public class CheckKafkaWatermark : IHealthCheck
{
    private readonly IHeartbeatCheckHealthHandler _healthHandler;

    public CheckKafkaWatermark(IHeartbeatCheckHealthHandler healthHandler)
    {
        _healthHandler = healthHandler;
    }

    public async Task<HealthCheckResult> CheckHealthAsync(
        HealthCheckContext context,
        CancellationToken cancellationToken = default)
    {
        return await Task.FromResult(HealthCheckResult.Healthy($"Low: {_healthHandler.GetWatermarks().Low.ToString()} High: {_healthHandler.GetWatermarks().High.ToString()} Offset: {HealthHandler.GetOffset().Value.ToString()}"));
    }
}

有了这个 _mockIHeartbeat.Setup(x => x.GetOffset().Returns(offset) 似乎没有得到设置。 IE。它始终显示为 0。

如何解决？

Answer 1

问题是我的 SUT 中有这一行：

return await Task.FromResult(HealthCheckResult.Healthy($"Low: {_healthHandler.GetWatermarks().Low.ToString()} High: {_healthHandler.GetWatermarks().High.ToString()} Offset: {HealthHandler.GetOffset().Value.ToString()}"));

我应该有：

return await Task.FromResult(HealthCheckResult.Healthy($"Low: {_healthHandler.GetWatermarks().Low.ToString()} High: {_healthHandler.GetWatermarks().High.ToString()} Offset: {_healthHandler.GetOffset().Value.ToString()}"));

顺便说一句，ToString() 在这里是多余的，所以我将行更改为

return await Task.FromResult(HealthCheckResult.Healthy($"Low: {_healthHandler.GetWatermarks().Low} High: {_healthHandler.GetWatermarks().High} Offset: {_healthHandler.GetOffset().Value}"));

设置多个属性时 Mock Setup() 不起作用

Mock Setup() does not work when setting multiple properties

.net

c#

unit-testing

moq