Usage Analyzers (1xxx)

ID			Title
xUnit1000	v2 v3	Error	Test classes must be public
xUnit1001	v2 v3	Error	Fact methods cannot have parameters
xUnit1002	v2 v3	Error	Test methods cannot have multiple Fact or Theory attributes
xUnit1003	v2 v3	Error	Theory methods must have test data
xUnit1004	v2 v3	Info	Test methods should not be skipped
xUnit1005	v2 v3	Warning	Fact methods should not have test data
xUnit1006	v2 v3	Warning	Theory methods should have parameters
xUnit1007	v2 v3	Error	ClassData must point at a valid class
xUnit1008	v2 v3	Warning	Test data attribute should only be used on a Theory
xUnit1009	v2 v3	Error	InlineData values must match the number of method parameters
xUnit1010	v2 v3	Error	The value is not convertible to the method parameter type
xUnit1011	v2 v3	Error	There is no matching method parameter
xUnit1012	v2 v3	Warning	Null should not be used for value type parameters
xUnit1013	v2 v3	Warning	Public method should be marked as test
xUnit1014	v2 v3	Warning	MemberData should use nameof operator for member name
xUnit1015	v2 v3	Error	MemberData must reference an existing member
xUnit1016	v2 v3	Error	MemberData must reference a public member
xUnit1017	v2 v3	Error	MemberData must reference a static member
xUnit1018	v2 v3	Error	MemberData must reference a valid member kind
xUnit1019	v2 v3	Error	MemberData must reference a member providing a valid data type
xUnit1020	v2 v3	Error	MemberData must reference a property with a getter
xUnit1021	v2 v3	Warning	MemberData should not have parameters if the referenced member is not a method
xUnit1022	v2 v3	Error	Theory methods cannot have a parameter array
xUnit1023	v2 v3	Error	Theory methods cannot have default parameter values
xUnit1024	v2 v3	Error	Test methods cannot have overloads
xUnit1025	v2 v3	Warning	InlineData should be unique within the Theory it belongs to
xUnit1026	v2 v3	Warning	Theory methods should use all of their parameters
xUnit1027	v2 v3	Error	Collection definition classes must be public
xUnit1028	v2 v3	Error	Test method must have valid return type
xUnit1029	v2 v3	Error	Local functions cannot be test functions
xUnit1030	v2 v3	Warning	Do not call ConfigureAwait in test method
xUnit1031	v2 v3	Warning	Do not use blocking task operations in test method
xUnit1032	v2 v3	Error	Test classes cannot be nested within a generic class
xUnit1033	v2 v3	Info	Test classes decorated with 'Xunit.IClassFixture' or 'Xunit.ICollectionFixture' should add a constructor argument of type TFixture
xUnit1034	v2 v3	Warning	Null should only be used for nullable parameters
xUnit1035	v2 v3	Error	The value is not convertible to the method parameter type
xUnit1036	v2 v3	Error	There is no matching method parameter
xUnit1037	v2 v3	Error	There are fewer theory data type arguments than required by the parameters of the test method
xUnit1038	v2 v3	Error	There are more theory data type arguments than allowed by the parameters of the test method
xUnit1039	v2 v3	Error	The type argument to theory data is not compatible with the type of the corresponding test method parameter
xUnit1040	v2 v3	Warning	The type argument to theory data is nullable, while the type of the corresponding test method parameter is not
xUnit1041	v2 v3	Warning	Fixture arguments to test classes must have fixture sources
xUnit1042	v2 v3	Info	The member referenced by the MemberData attribute returns untyped data rows
xUnit1043	v2 v3	Error	Constructors on classes derived from FactAttribute must be public when used on test methods
xUnit1044	v2 v3	Info	Avoid using TheoryData type arguments that are not serializable
xUnit1045	v2 v3	Info	Avoid using TheoryData type arguments that might not be serializable
xUnit1046	v2 v3	Info	Avoid using TheoryDataRow arguments that are not serializable
xUnit1047	v2 v3	Info	Avoid using TheoryDataRow arguments that might not be serializable
xUnit1048	v2 v3	Warning	Avoid using 'async void' for test methods as it is deprecated in xUnit.net v3
xUnit1049	v2 v3	Error	Do not use 'async void' for test methods as it is no longer supported
xUnit1050	v2 v3	Info	The class referenced by the ClassData attribute returns untyped data rows
xUnit1051	v2 v3	Warning	Calls to methods which accept CancellationToken should use TestContext.Current.CancellationToken
xUnit1052	v2 v3	Warning	Avoid using 'TheoryData<...>' with types that implement 'ITheoryDataRow'

Assertion Analyzers (2xxx)

ID			Title
xUnit2000	v2 v3	Warning	Constants and literals should be the expected argument
xUnit2001	v2 v3	Hidden	Do not use invalid equality check
xUnit2002	v2 v3	Warning	Do not use null check on value type
xUnit2003	v2 v3	Warning	Do not use equality check to test for null value
xUnit2004	v2 v3	Warning	Do not use equality check to test for boolean conditions
xUnit2005	v2 v3	Warning	Do not use identity check on value type
xUnit2006	v2 v3	Warning	Do not use invalid string equality check
xUnit2007	v2 v3	Warning	Do not use typeof expression to check the type
xUnit2008	v2 v3	Warning	Do not use boolean check to match on regular expressions
xUnit2009	v2 v3	Warning	Do not use boolean check to check for substrings
xUnit2010	v2 v3	Warning	Do not use boolean check to check for string equality
xUnit2011	v2 v3	Warning	Do not use empty collection check
xUnit2012	v2 v3	Warning	Do not use Enumerable.Any() to check if a value exists in a collection
xUnit2013	v2 v3	Warning	Do not use equality check to check for collection size.
xUnit2014	v2 v3	Error	Do not use throws check to check for asynchronously thrown exception
xUnit2015	v2 v3	Warning	Do not use typeof expression to check the exception type
xUnit2016	v2 v3	Error	Keep precision in the allowed range when asserting equality of doubles or decimals.
xUnit2017	v2 v3	Warning	Do not use Contains() to check if a value exists in a collection
xUnit2018	v2 v3	Warning	Do not compare an object's exact type to an abstract class or interface
xUnit2019	v2 v3	Hidden	Do not use obsolete throws check to check for asynchronously thrown exception
xUnit2020	v2 v3	Warning	Do not use always-failing boolean assertion to fail a test
xUnit2021	v2 v3	Error	Async assertions should be awaited
xUnit2022	v2 v3	Info	Boolean assertions should not be negated
xUnit2023	v2 v3	Info	Do not use collection methods for single-item collections
xUnit2024	v2 v3	Info	Do not use boolean asserts for simple equality tests
xUnit2025	v2 v3	Info	The boolean assertion statement can be simplified
xUnit2026	v2 v3	Warning	Comparison of sets must be done with IEqualityComparer
xUnit2027	v2 v3	Warning	Comparison of sets to linear containers have undefined results
xUnit2028	v2 v3	Warning	Do not use Assert.Empty or Assert.NotEmpty with problematic types
xUnit2029	v2 v3	Warning	Do not use Assert.Empty to check if a value does not exist in a collection
xUnit2030	v2 v3	Warning	Do not use Assert.NotEmpty to check if a value exists in a collection
xUnit2031	v2 v3	Warning	Do not use Where clause with Assert.Single
xUnit2032	v2 v3	Info	Type assertions based on 'assignable from' are confusingly named

Extensibility Analyzers (3xxx)

ID			Title
xUnit3000	v2 v3	Error	Classes which cross AppDomain boundaries must derive directly or indirectly from LongLivedMarshalByRefObject
xUnit3001	v2 v3	Error	Classes that are marked as serializable (or created by the test framework at runtime) must have a public parameterless constructor
xUnit3002	v2 v3	Warning	Classes which are JSON serializable should not be tested for their concrete type
xUnit3003	v2 v3	Warning	Classes which extend FactAttribute (directly or indirectly) should provide a public constructor for source information