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Running Tests using Mono Runtime

Running Runtime Tests

We currently only support running tests against coreclr. There are additional mono runtime tests in mono/mono, but they have not been moved over yet. Simply run the following command:

dotnet build /t:RunCoreClrTests $(REPO_ROOT)/src/mono/mono.proj

If you want to run individual tests, execute this command:

dotnet build /t:RunCoreClrTest /p:CoreClrTest="<TestName>" $(REPO_ROOT)/src/mono/mono.proj

Running Library Tests

Running library tests against Mono is straightforward regardless of configuration. Simply run the following commands:

  1. Build and set the RuntimeFlavor
./build.sh /p:RuntimeFlavor=mono

or on Windows

build.cmd /p:RuntimeFlavor=mono

  1. cd into the test library of your choice (cd src/libraries/<library>/tests)

  2. Run the tests

dotnet build /t:Test /p:RuntimeFlavor=mono

Patching Local dotnet (.dotnet-mono)

Another way to test mono out is by 'patching' a local dotnet with our runtime bits. This is a good way to write simple test programs and get a glimpse of how mono will work with the dotnet tooling.

To generate a local .dotnet-mono, execute this command:

dotnet build /t:PatchLocalMonoDotnet $(REPO_ROOT)/src/mono/mono.proj

You can then, for example, run our HelloWorld sample via:

dotnet build -c Release $(REPO_ROOT)/src/mono/netcore/sample/HelloWorld
MONO_ENV_OPTIONS="" COMPlus_DebugWriteToStdErr=1 \
$(REPO_ROOT)/.dotnet-mono/dotnet $(REPO_ROOT)/src/mono/netcore/sample/HelloWorld/bin/HelloWorld.dll