Assert.ContainsSingle Method
Definition
Important
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Overloads
| ContainsSingle<T>(IEnumerable<T>, String, String) |
Tests whether the specified collection contains exactly one element. |
| ContainsSingle<T>(Func<T,Boolean>, IEnumerable<T>, String, String, String) |
Tests whether the specified collection contains exactly one element that matches the given predicate. |
| ContainsSingle<T>(Func<T,Boolean>, IEnumerable<T>, String) |
Tests whether the specified collection contains exactly one element that matches the given predicate. |
| ContainsSingle<T>(IEnumerable<T>, String, Object[]) |
Tests whether the specified collection contains exactly one element. |
| ContainsSingle<T>(IEnumerable<T>, String) |
Tests whether the specified collection contains exactly one element. |
| ContainsSingle<T>(IEnumerable<T>, Assert.AssertSingleInterpolatedStringHandler<T>) |
Tests whether the specified collection contains exactly one element. |
| ContainsSingle<T>(IEnumerable<T>) |
Tests whether the specified collection contains exactly one element. |
| ContainsSingle<T>(IEnumerable<T>, Assert.AssertSingleInterpolatedStringHandler<T>, String) |
Tests whether the specified collection contains exactly one element. |
ContainsSingle<T>(IEnumerable<T>, String, String)
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection, string? message = "", string collectionExpression = "");static member ContainsSingle : seq<'T> * string * string -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T), Optional message As String = "", Optional collectionExpression As String = "") As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- String
The message to display when the assertion fails.
- collectionExpression
- String
The syntactic expression of collection as given by the compiler via caller argument expression. Users shouldn't pass a value for this parameter.
Returns
The item.
Applies to
ContainsSingle<T>(Func<T,Boolean>, IEnumerable<T>, String, String, String)
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element that matches the given predicate.
public static T ContainsSingle<T>(Func<T,bool> predicate, System.Collections.Generic.IEnumerable<T> collection, string? message = "", string predicateExpression = "", string collectionExpression = "");static member ContainsSingle : Func<'T, bool> * seq<'T> * string * string * string -> 'TPublic Shared Function ContainsSingle(Of T) (predicate As Func(Of T, Boolean), collection As IEnumerable(Of T), Optional message As String = "", Optional predicateExpression As String = "", Optional collectionExpression As String = "") As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- String
The message to display when the assertion fails.
- predicateExpression
- String
The syntactic expression of predicate as given by the compiler via caller argument expression. Users shouldn't pass a value for this parameter.
- collectionExpression
- String
The syntactic expression of collection as given by the compiler via caller argument expression. Users shouldn't pass a value for this parameter.
Returns
The item that matches the predicate.
Applies to
ContainsSingle<T>(Func<T,Boolean>, IEnumerable<T>, String)
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element that matches the given predicate.
public static T ContainsSingle<T>(Func<T,bool> predicate, System.Collections.Generic.IEnumerable<T> collection, string message = "");static member ContainsSingle : Func<'T, bool> * seq<'T> * string -> 'TPublic Shared Function ContainsSingle(Of T) (predicate As Func(Of T, Boolean), collection As IEnumerable(Of T), Optional message As String = "") As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- String
The message format to display when the assertion fails.
Returns
The item that matches the predicate.
Applies to
ContainsSingle<T>(IEnumerable<T>, String, Object[])
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection, string? message, params object?[]? parameters);static member ContainsSingle : seq<'T> * string * obj[] -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T), message As String, ParamArray parameters As Object()) As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- String
The message format to display when the assertion fails.
- parameters
- Object[]
The parameters to format the message.
Returns
The item.
Applies to
ContainsSingle<T>(IEnumerable<T>, String)
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection, string? message);static member ContainsSingle : seq<'T> * string -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T), message As String) As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- String
The message to display when the assertion fails.
Returns
The item.
Applies to
ContainsSingle<T>(IEnumerable<T>, Assert.AssertSingleInterpolatedStringHandler<T>)
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertSingleInterpolatedStringHandler<T> message);static member ContainsSingle : seq<'T> * AssertSingleInterpolatedStringHandler -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T), ByRef message As Assert.AssertSingleInterpolatedStringHandler(Of T)) As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- Assert.AssertSingleInterpolatedStringHandler<T>
The message to display when the assertion fails.
Returns
The item.
Applies to
ContainsSingle<T>(IEnumerable<T>)
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection);static member ContainsSingle : seq<'T> -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T)) As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
Returns
The item.
Applies to
ContainsSingle<T>(IEnumerable<T>, Assert.AssertSingleInterpolatedStringHandler<T>, String)
- Source:
- Assert.Contains.cs
Tests whether the specified collection contains exactly one element.
public static T ContainsSingle<T>(System.Collections.Generic.IEnumerable<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertSingleInterpolatedStringHandler<T> message, string collectionExpression = "");static member ContainsSingle : seq<'T> * AssertSingleInterpolatedStringHandler * string -> 'TPublic Shared Function ContainsSingle(Of T) (collection As IEnumerable(Of T), ByRef message As Assert.AssertSingleInterpolatedStringHandler(Of T), Optional collectionExpression As String = "") As TType Parameters
- T
The type of the collection items.
Parameters
- collection
- IEnumerable<T>
The collection.
- message
- Assert.AssertSingleInterpolatedStringHandler<T>
The message to display when the assertion fails.
- collectionExpression
- String
The syntactic expression of collection as given by the compiler via caller argument expression. Users shouldn't pass a value for this parameter.
Returns
The item.
