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RichardSzalay.MockHttp

7.1.052M downloads/morichardszalay/mockhttp ↗New releases in your daily digest, changelog included.

Testing layer for Microsoft's HttpClient library

Last release 2 months ago
08 Aug 2026
Ships unpredictably
gaps range from 8 days to 3.9 years
Some releases are documented
notes for 11 of 21 stable releases
2 versions withdrawn
withdrawn after publishing
127 years old
27 releases · first in 1900

Release timeline

27 releases since 1900

1900190219041906

Releases

7.1.08 Aug 2026Deprecated
Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…
7.1.0 - Fix support for streaming Content, such as used by Refit

Fix for matching content multiple times (thanks bubblecup-12!) 7.0.0 - Change target profiles to netstandard1.1, netstandard2.0, net5.0, net6.0 (BREAKING)

Change default fallback behaviour to throw an exception with a report of the match attempts

Add JSON and XML matchers

Add support for synchronous HttpClient.Send #104

Modernize source #41 and add SourceLink support #66

Fix matching of encoded URL paths #116

Throw a descriptive error when matching on a mocked request with no response #87 (thanks perfectsquircle!)

Fix race condition on outstanding requests exception message #96 (thanks jr01!) 6.0.0 - Assemblies are now strong named (binary BREAKING) #1 5.0.0 - Align with official recommendations on multi-targetting HttpClient:

Add netstandard2.0 target #61

Change .NET 4.5 target to use in-band System.Net.Http reference (BREAKING) #61

Remove PCL profile 111 (BREAKING) #18 4.0.0 - Default Fallback message now includes request method and URL (BREAKING)

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35

Added WithExactQueryString / WithExactFormData overloads. Fixes #37

Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45

Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39

HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29

Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1)

Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly

Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

7.0.012 Oct 2023Deprecated2 sources agree

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…

7.0.0 - Change target profiles to netstandard1.1, netstandard2.0, net5.0, net6.0 (BREAKING)

Change default fallback behaviour to throw an exception with a report of the match attempts
Add JSON and XML matchers
Add support for synchronous HttpClient.Send #104
Modernize source #41 and add SourceLink support #66
Fix matching of encoded URL paths #116
Throw a descriptive error when matching on a mocked request with no response #87 (thanks perfectsquircle!)
Fix race condition on outstanding requests exception message #96 (thanks jr01!) 6.0.0 - Assemblies are now strong named (binary BREAKING) #1 5.0.0 - Align with official recommendations on multi-targetting HttpClient:
Add netstandard2.0 target #61
Change .NET 4.5 target to use in-band System.Net.Http reference (BREAKING) #61
Remove PCL profile 111 (BREAKING) #18 4.0.0 - Default Fallback message now includes request method and URL (BREAKING)
Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35
Added WithExactQueryString / WithExactFormData overloads. Fixes #37
Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45
Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39
HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29
Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1)
Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly
Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

7.0.0-rc11 Jan 1900pre-releasewithdrawnDeprecated

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…

7.0.0 - Change target profiles to netstandard1.1, netstandard2.0, net5.0, net6.0 (BREAKING)

Change default fallback behaviour to throw an exception with a report of the match attempts
Add JSON and XML matchers
Add support for synchronous HttpClient.Send #104
Fix matching of encoded URL paths #116
Throw a descriptive error when matching on a mocked request with no response #87 (thanks perfectsquircle!)
Fix race condition on outstanding requests exception message #96 (thanks jr01!) 6.0.0 - Assemblies are now strong named (binary BREAKING) #1 5.0.0 - Align with official recommendations on multi-targetting HttpClient:
Add netstandard2.0 target #61
Change .NET 4.5 target to use in-band System.Net.Http reference (BREAKING) #61
Remove PCL profile 111 (BREAKING) #18 4.0.0 - Default Fallback message now includes request method and URL (BREAKING)
Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35
Added WithExactQueryString / WithExactFormData overloads. Fixes #37
Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45
Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39
HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29
Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1)
Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly
Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

6.0.018 Nov 2019Deprecated3 sources agree

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…

6.0.0 - Assemblies are now strong named (binary BREAKING) #1 5.0.0 - Align with official recommendations on multi-targetting HttpClient: - Add netstandard2.0 target #61 - Change .NET 4.5 target to use in-band System.Net.Http reference (BREAKING) #61 - Remove PCL profile 111 (BREAKING) #18 4.0.0 - Default Fallback message now includes request method and URL (BREAKING) - Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

5.0.018 Jun 2018Deprecated2 sources agree

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…

5.0.0 - Align with official recommendations on multi-targetting HttpClient: - Add netstandard2.0 target #61 - Change .NET 4.5 target to use in-band System.Net.Http reference (BREAKING) #61 - Remove PCL profile 111 (BREAKING) #18 4.0.0 - Default Fallback message now includes request method and URL (BREAKING) - Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

4.0.016 Apr 2018Deprecated

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.…

4.0.0 - Default Fallback message now includes request method and URL (BREAKING)

Deprecated FallbackMessage property removed (BREAKING) 3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

Additional notes

Default Fallback message now includes request method and URL (BREAKING) - Fixes #57
Deprecated FallbackMessage property removed (BREAKING)

Open source →

3.3.011 Mar 20182 sources agree

3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet pa

3.3.0 - Added overloads for including custom headers in the response (thanks Sascha Kiefer!) 3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

3.2.17 Sept 20172 sources agree

3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35

3.2.1 - XML documentation is now included in the NuGet package. Fixes #52 3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

3.2.031 Aug 20172 sources agree

3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35

3.2.0 - MockHttpMessageHandler now tracks successful matches. Fixes #35 - Added WithExactQueryString / WithExactFormData overloads. Fixes #37 - Added BackendDefinitionBehavior to allow matching Backend Definitions when Request Expectations exist, but don't match. Fixes #45 - Fixed typo in Response(HttpResponseMessage) obsolete message. Fixes #44 3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

3.1.029 Aug 2017

3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39

3.1.0 - Bump major version. Fixes #50 1.5.1 - Respond(HttpClient) now works as expected. Fixes #39 - HttpResponseMessage can be disposed without breaking future requests. Fixes #33 1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!) 1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler 1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21 1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa) 1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!) 1.2.0 - Changed PCL profile to support WP8.1 1.1.0 - Added MockHttpMessageHandler.Fallback and HttpClient passthrough support

Additional notes

Bump major version to work around bug in NuGet. Fixes #50

Open source →

1.5.122 Aug 2017

Respond(HttpClient) now works as expected. Fixes #39

Respond(HttpClient) now works as expected. Fixes #39
HttpResponseMessage can be disposed without breaking future requests. Fixes #33

Open source →

Additional notes

HttpResponseMessage can be disposed without breaking future requests. Fixes #33

1.5.0 - WithHeaders now also matches against Content-* headers (thanks Cory Lucas!)

1.4.0 - Cancellations and HttpClient timeouts are now supported. Fixes #29 - Added a .ToHttpClient() convenience method to HttpClientHandler

1.3.1 - Multiple requests to the same mocked handler now return unique response streams. Fixes #21

1.3.0 - Added support for .NET Core via the .NET Standard Library (1.1) - Relative URLs now match correctly on Xamarin Android 1.2.2 - Root absolute URLs defined with no trailing flash now match those with a slash (and vice versa)

1.2.1 - HttpResponseMessage.RequestMessage is now assigned correctly - Form/Query data matching now works with both + and %20 space encodings (thanks Jozef Izso!)

Open source →