c# - 如何将二维数组设置为单元测试的参数

Question

如果预期的变量是整数，它就像这样

[DataRow(2)]
[TestMethod]
public void TestMethod(int expected)
{
      // some code...
}

但是当有二维数组 int[,] 而不是 int 参数时应该怎么办？当我尝试这样做时

[DataRow(new int[,] { {0, 0}, {0, 0} })]
[TestMethod]
public void TestMethod(int[,] expected)
{
      // some code...
}

错误说

An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type

Answer 1

您可以使用 DynamicData Attribute 来实现它如下所示:

[DataTestMethod]
[DynamicData(nameof(TestDataMethod), DynamicDataSourceType.Method)]
public void TestMethod1(int[,] expected)
{
    // some code...
    var b = expected;
}

static IEnumerable<object[]> TestDataMethod()
{
    return new[] { new[] { new int[,] { { 0, 0 }, { 1, 1 } } } };
}

输出