这个测试怎么会失败呢?
[TestMethod]
public void Get_Code()
{
var expected = new List<int>();
expected.AddRange(new [] { 100, 400, 200, 900, 2300, 1900 });
var actual = new List<int>();
actual.AddRange(new [] { 100, 400, 200, 900, 2300, 1900 });
Assert.AreEqual(expected, actual);
// Assert.AreSame(expected, actual) fails
// Assert.IsTrue(expected.Equals(actual)) fails
}
当前回答
我尝试了这个线程中的其他答案，它们对我不起作用，我比较了对象的集合，这些对象的属性中存储了相同的值，但对象是不同的。
方法调用:
CompareIEnumerable(to, emailDeserialized.ToIndividual,
(x, y) => x.ToName == y.ToName && x.ToEmailAddress == y.ToEmailAddress);
比较方法:
private static void CompareIEnumerable<T>(IEnumerable<T> one, IEnumerable<T> two, Func<T, T, bool> comparisonFunction)
{
var oneArray = one as T[] ?? one.ToArray();
var twoArray = two as T[] ?? two.ToArray();
if (oneArray.Length != twoArray.Length)
{
Assert.Fail("Collections are not same length");
}
for (int i = 0; i < oneArray.Length; i++)
{
var isEqual = comparisonFunction(oneArray[i], twoArray[i]);
Assert.IsTrue(isEqual);
}
}
其他回答
List<AdminUser> adminDetailsExpected = new List<AdminUser>()
{
new AdminUser {firstName = "test1" , lastName = "test1" , userId =
"001test1" },
new AdminUser {firstName = "test2" , lastName = "test2" , userId =
"002test2" }
};
/ /行为
List<AdminUser> adminDetailsActual = RetrieveAdmin(); // your retrieve logic goes here
/ /维护
Assert.AreEqual(adminDetailsExpected.Count, adminDetailsActual.Count); //Test succeeds if the count matches else fails. This count can be used as a work around to test
我想这会有帮助
Assert.IsTrue(expected.SequenceEqual(actual));
我尝试了这个线程中的其他答案，它们对我不起作用，我比较了对象的集合，这些对象的属性中存储了相同的值，但对象是不同的。
方法调用:
CompareIEnumerable(to, emailDeserialized.ToIndividual,
(x, y) => x.ToName == y.ToName && x.ToEmailAddress == y.ToEmailAddress);
比较方法:
private static void CompareIEnumerable<T>(IEnumerable<T> one, IEnumerable<T> two, Func<T, T, bool> comparisonFunction)
{
var oneArray = one as T[] ?? one.ToArray();
var twoArray = two as T[] ?? two.ToArray();
if (oneArray.Length != twoArray.Length)
{
Assert.Fail("Collections are not same length");
}
for (int i = 0; i < oneArray.Length; i++)
{
var isEqual = comparisonFunction(oneArray[i], twoArray[i]);
Assert.IsTrue(isEqual);
}
}
要对集合进行断言，你应该使用CollectionAssert:
CollectionAssert.AreEqual(expected, actual);
List<T>不重写Equals，所以if Assert. T。AreEqual只调用Equals，它最终会使用引用相等。
如果你想检查每个包含相同的值集合，那么你应该使用:
CollectionAssert.AreEquivalent(expected, actual);
编辑:
“两个集合是等价的，如果它们有相同数量的相同元素，但顺序不同。元素相等是指它们的值相等，而不是指它们指向同一个对象。”——https://msdn.microsoft.com/en-us/library/ms243779.aspx
