MSTest、NUnit、xUnit.net 属性和断言对照表

Marks a test method.

xUnit.net does not require an attribute for a test class; it looks for all test methods in all public (exported) classes in the assembly.

Assert.Throws

Record.Exception

xUnit.net has done away with the ExpectedException attribute in favor of Assert.Throws.

We believe that use of [SetUp]is generally bad. However, you can implement a parameterless constructor as a direct replacement. 

We believe that use of[TearDown] is generally bad. However, you can implementIDisposable.Dispose as a direct replacement.

To get per-fixture setup, implement IUseFixture<T> on your test class.

To get per-fixture teardown, implement IUseFixture<T> on your test class. 

Set the Skip parameter on the[Fact] attribute to temporarily skip a test.

Set the Timeout parameter on the [Fact] attribute to cause a test to fail if it takes too long to run. Note that the timeout value for xUnit.net is in milliseconds.

[Category]

Set arbitrary metadata on a test

Theory (data-driven test).

MSTest and xUnit.net support generic versions of this method

MSTest and xUnit.net support generic versions of this method

NotSame

Same

Contains 

(on CollectionAssert)

Contains

n/a

DoesNotContain 

(on CollectionAssert)

DoesNotContain

Ensures that the code does not throw any exceptions

xUnit.net alternative:

Assert.True(false, "message")

xUnit.net alternative: 

Assert.True(x > y)

GreaterOrEqual

n/a

Ensures that a value is in a given inclusive range (note: NUnit and MSTest have limited support for InRange on their AreEqual methods)

IsAssignableFrom

Empty

False

IsType

xUnit.net alternative:

Assert.True(double.IsNaN(x))

xUnit.net alternative: 

Assert.False(obj is Type);

NotEmpty

IsNotType

NotNull

Null

True

xUnit.net alternative: 

Assert.True(x < y)

LessOrEqual

NotInRange

Ensures that a value is not in a given inclusive range

Ensures that the code throws an exact exception

IsAssignableFrom

n/a