Assert.StartsWith Method
Definition
Important
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Overloads
| StartsWith(String, String, String) |
Tests whether the specified string begins with the specified substring and throws an exception if the test string does not start with the substring. |
| StartsWith(String, String, StringComparison, String) |
Tests whether the specified string begins with the specified substring and throws an exception if the test string does not start with the substring. |
StartsWith(String, String, String)
- Source:
- Assert.StartsWith.cs
Tests whether the specified string begins with the specified substring and throws an exception if the test string does not start with the substring.
public static void StartsWith(string? substring, string? value, string message = "");static member StartsWith : string * string * string -> unitPublic Shared Sub StartsWith (substring As String, value As String, Optional message As String = "")Parameters
- substring
- String
The string expected to be a prefix of value.
- value
- String
The string that is expected to begin with substring.
- message
- String
The message to include in the exception when value
does not begin with substring. The message is
shown in test results.
Exceptions
value is null, or substring is null,
or value does not start with substring.
Applies to
StartsWith(String, String, StringComparison, String)
- Source:
- Assert.StartsWith.cs
Tests whether the specified string begins with the specified substring and throws an exception if the test string does not start with the substring.
public static void StartsWith(string? substring, string? value, StringComparison comparisonType, string message = "");static member StartsWith : string * string * StringComparison * string -> unitPublic Shared Sub StartsWith (substring As String, value As String, comparisonType As StringComparison, Optional message As String = "")Parameters
- substring
- String
The string expected to be a prefix of value.
- value
- String
The string that is expected to begin with substring.
- comparisonType
- StringComparison
The comparison method to compare strings comparisonType.
- message
- String
The message to include in the exception when value
does not begin with substring. The message is
shown in test results.
Exceptions
value is null, or substring is null,
or value does not start with substring.
