Assert.IsEmpty Method

Definition

Namespace:: Microsoft.VisualStudio.TestTools.UnitTesting

Assembly:: Microsoft.VisualStudio.TestPlatform.TestFramework.dll

Assembly:: MSTest.TestFramework.dll

Package:: MSTest.TestFramework v3.11.0

Package:: MSTest.TestFramework v4.0.2

Package:: MSTest.TestFramework v4.1.0

Package:: MSTest.TestFramework v4.2.3

Package:: MSTest.TestFramework v4.4.0

Package:: MSTest.TestFramework v4.3.0

Package:: MSTest.TestFramework v3.10.5

Package:: MSTest.TestFramework v3.8.3

Package:: MSTest.TestFramework v3.9.3

Important

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Overloads

Name	Description
IsEmpty(IEnumerable)	Tests that the collection is empty.
IsEmpty(IEnumerable, String)	Tests that the collection is empty.
IsEmpty(IEnumerable, String, String)	Tests that the collection is empty.
IsEmpty<T>(Span<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)	Tests that the span is empty.
IsEmpty<T>(Span<T>, String, String)	Tests that the span is empty.
IsEmpty<T>(ReadOnlySpan<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)	Tests that the span is empty.
IsEmpty<T>(ReadOnlyMemory<T>, String, String)	Tests that the memory is empty.
IsEmpty<T>(ReadOnlyMemory<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)	Tests that the memory is empty.
IsEmpty<T>(Memory<T>, String, String)	Tests that the memory is empty.
IsEmpty<T>(ReadOnlySpan<T>, String, String)	Tests that the span is empty.
IsEmpty<T>(IEnumerable<T>, String, String)	Tests that the collection is empty.
IsEmpty<T>(IEnumerable<T>, String, Object[])	Tests that the collection is empty.
IsEmpty<T>(IEnumerable<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)	Tests that the collection is empty.
IsEmpty<T>(IEnumerable<T>, String)	Tests that the collection is empty.
IsEmpty<T>(Memory<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)	Tests that the memory is empty.
IsEmpty<T>(IEnumerable<T>, Assert.AssertCountInterpolatedStringHandler<T>)	Tests that the collection is empty.
IsEmpty<T>(IEnumerable<T>)	Tests that the collection is empty.

IsEmpty(IEnumerable)

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty(System.Collections.IEnumerable collection);

static member IsEmpty : System.Collections.IEnumerable -> unit

Public Shared Sub IsEmpty (collection As IEnumerable)

Parameters

collection: IEnumerable

The collection.

Applies to

IsEmpty(IEnumerable, String)

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty(System.Collections.IEnumerable collection, string? message);

static member IsEmpty : System.Collections.IEnumerable * string -> unit

Public Shared Sub IsEmpty (collection As IEnumerable, message As String)

Parameters

collection: IEnumerable

The collection.

message: String

The message format to display when the assertion fails.

Applies to

IsEmpty(IEnumerable, String, String)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.IsEmpty.cs

Tests that the collection is empty.

public static void IsEmpty(System.Collections.IEnumerable collection, string? message = "", string collectionExpression = "");

static member IsEmpty : System.Collections.IEnumerable * string * string -> unit

Public Shared Sub IsEmpty (collection As IEnumerable, Optional message As String = "", Optional collectionExpression As String = "")

Parameters

collection: IEnumerable

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.

Applies to

IsEmpty<T>(Span<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)

Tests that the span is empty.

public static void IsEmpty<T>(Span<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message, string collectionExpression = "");

static member IsEmpty : Span<'T> * AssertCountInterpolatedStringHandler * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As Span(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T), Optional collectionExpression As String = "")

Type Parameters

T

The type of the span items.

Parameters

collection: Span<T>

The span.

message: Assert.AssertCountInterpolatedStringHandler<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.

Applies to

IsEmpty<T>(Span<T>, String, String)

Tests that the span is empty.

public static void IsEmpty<T>(Span<T> collection, string? message = "", string collectionExpression = "");

static member IsEmpty : Span<'T> * string * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As Span(Of T), Optional message As String = "", Optional collectionExpression As String = "")

Type Parameters

T

The type of the span items.

Parameters

collection: Span<T>

The span.

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.

Applies to

IsEmpty<T>(ReadOnlySpan<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)

Tests that the span is empty.

public static void IsEmpty<T>(ReadOnlySpan<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message, string collectionExpression = "");

static member IsEmpty : ReadOnlySpan<'T> * AssertCountInterpolatedStringHandler * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As ReadOnlySpan(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T), Optional collectionExpression As String = "")

Type Parameters

T

The type of the span items.

Parameters

collection: ReadOnlySpan<T>

The span.

message: Assert.AssertCountInterpolatedStringHandler<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.

Applies to

IsEmpty<T>(ReadOnlyMemory<T>, String, String)

Tests that the memory is empty.

public static void IsEmpty<T>(ReadOnlyMemory<T> collection, string? message = "", string collectionExpression = "");

static member IsEmpty : ReadOnlyMemory<'T> * string * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As ReadOnlyMemory(Of T), Optional message As String = "", Optional collectionExpression As String = "")

Type Parameters

T

The type of the memory items.

Parameters

collection: ReadOnlyMemory<T>

The memory.

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.

Applies to

IsEmpty<T>(ReadOnlyMemory<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)

Tests that the memory is empty.

public static void IsEmpty<T>(ReadOnlyMemory<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message, string collectionExpression = "");

static member IsEmpty : ReadOnlyMemory<'T> * AssertCountInterpolatedStringHandler * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As ReadOnlyMemory(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T), Optional collectionExpression As String = "")

Type Parameters

T

The type of the memory items.

Parameters

collection: ReadOnlyMemory<T>

The memory.

message: Assert.AssertCountInterpolatedStringHandler<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.

Applies to

IsEmpty<T>(Memory<T>, String, String)

Tests that the memory is empty.

public static void IsEmpty<T>(Memory<T> collection, string? message = "", string collectionExpression = "");

static member IsEmpty : Memory<'T> * string * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As Memory(Of T), Optional message As String = "", Optional collectionExpression As String = "")

Type Parameters

T

The type of the memory items.

Parameters

collection: Memory<T>

The memory.

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.

Applies to

IsEmpty<T>(ReadOnlySpan<T>, String, String)

Tests that the span is empty.

public static void IsEmpty<T>(ReadOnlySpan<T> collection, string? message = "", string collectionExpression = "");

static member IsEmpty : ReadOnlySpan<'T> * string * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As ReadOnlySpan(Of T), Optional message As String = "", Optional collectionExpression As String = "")

Type Parameters

T

The type of the span items.

Parameters

collection: ReadOnlySpan<T>

The span.

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.

Applies to

IsEmpty<T>(IEnumerable<T>, String, String)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.IsEmpty.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection, string? message = "", string collectionExpression = "");

static member IsEmpty : seq<'T> * string * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T), Optional message As String = "", Optional collectionExpression As String = "")

Type 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.

Applies to

IsEmpty<T>(IEnumerable<T>, String, Object[])

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection, string? message, params object?[]? parameters);

static member IsEmpty : seq<'T> * string * obj[] -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T), message As String, ParamArray parameters As Object())

Type 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.

Applies to

IsEmpty<T>(IEnumerable<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.IsEmpty.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message, string collectionExpression = "");

static member IsEmpty : seq<'T> * AssertCountInterpolatedStringHandler * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T), Optional collectionExpression As String = "")

Type Parameters

T

The type of the collection items.

Parameters

collection: IEnumerable<T>

The collection.

message: Assert.AssertCountInterpolatedStringHandler<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.

Applies to

IsEmpty<T>(IEnumerable<T>, String)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection, string? message);

static member IsEmpty : seq<'T> * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T), message As String)

Type Parameters

T

The type of the collection items.

Parameters

collection: IEnumerable<T>

The collection.

message: String

The message to display when the assertion fails.

Applies to

IsEmpty<T>(Memory<T>, Assert.AssertCountInterpolatedStringHandler<T>, String)

Tests that the memory is empty.

public static void IsEmpty<T>(Memory<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message, string collectionExpression = "");

static member IsEmpty : Memory<'T> * AssertCountInterpolatedStringHandler * string -> unit

Public Shared Sub IsEmpty(Of T) (collection As Memory(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T), Optional collectionExpression As String = "")

Type Parameters

T

The type of the memory items.

Parameters

collection: Memory<T>

The memory.

message: Assert.AssertCountInterpolatedStringHandler<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.

Applies to

IsEmpty<T>(IEnumerable<T>, Assert.AssertCountInterpolatedStringHandler<T>)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection, ref Microsoft.VisualStudio.TestTools.UnitTesting.Assert.AssertCountInterpolatedStringHandler<T> message);

static member IsEmpty : seq<'T> * AssertCountInterpolatedStringHandler -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T), ByRef message As Assert.AssertCountInterpolatedStringHandler(Of T))

Type Parameters

T

The type of the collection items.

Parameters

collection: IEnumerable<T>

The collection.

message: Assert.AssertCountInterpolatedStringHandler<T>

The message to display when the assertion fails.

Applies to

IsEmpty<T>(IEnumerable<T>)

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Source:: Assert.Count.cs

Tests that the collection is empty.

public static void IsEmpty<T>(System.Collections.Generic.IEnumerable<T> collection);

static member IsEmpty : seq<'T> -> unit

Public Shared Sub IsEmpty(Of T) (collection As IEnumerable(Of T))

Type Parameters

T

The type of the collection items.

Parameters

collection: IEnumerable<T>

The collection.

Applies to

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