fill out functional testing

Author: AArnott

.github/workflows/build.yml

@@ -136,6 +136,68 @@ jobs:
         git config --global user.name ci
         git config --global user.email me@ci.com
 
+    - name: Consume NB.GV from .NET build
+      shell: bash
+      run: >
+        PkgFileName=$(ls deployables-Windows/Nerdbank.GitVersioning.*nupkg)
+
+        NBGV_NuGetPackageVersion=$([[ $PkgFileName =~ Nerdbank.GitVersioning\.(.*)\.nupkg ]] && echo "${BASH_REMATCH[1]}")
+
+        echo "<configuration><packageSources><add key='local' value='deployables-Windows' /></packageSources></configuration>" > nuget.config &&
+        dotnet new classlib -o lib &&
+        cd lib &&
+        echo '{"version":"42.42"}' > version.json &&
+        git init &&
+        git add version.json &&
+        git commit -m "Initial commit" &&
+        mkdir lib && cd lib &&
+        for l in c# f# vb;
+        do
+          echo Testing language $l &&
+          dotnet new classlib -lang=$l &&
+          dotnet add package nerdbank.gitversioning -v $NBGV_NuGetPackageVersion &&
+          dotnet pack -c debug /p:TreatWarningsAsErrors=false &&
+          ls bin/debug/lib.42.42.1*.nupkg 1> /dev/null 2>&1 &&
+          rm -r *
+          if [ $? -ne 0 ]; then exit 1; fi
+        done
+
+    - name: Consume Cake.GitVersioning
+      shell: bash
+      run: >
+        PkgFileName=$(ls deployables-Windows/Cake.GitVersioning.*nupkg)
+
+        NBGV_NuGetPackageVersion=$([[ $PkgFileName =~ Cake.GitVersioning\.(.*)\.nupkg ]] && echo "${BASH_REMATCH[1]}")
+
+        echo $NBGV_NuGetPackageVersion
+
+        mkdir caketest &&
+        cd caketest &&
+        git init &&
+        dotnet new tool-manifest &&
+        dotnet tool install Cake.Tool
+
+        echo "#addin nuget:?package=Cake.GitVersioning&version=${NBGV_NuGetPackageVersion}&prerelease=true"
+
+        echo "#addin nuget:?package=Cake.GitVersioning&version=${NBGV_NuGetPackageVersion}&prerelease=true" > build.cake
+
+        echo "Information(GitVersioningGetVersion().Version.ToString());" >> build.cake
+
+        dotnet cake
+
+    - name: Use nbgv dotnet CLI tool
+      shell: bash
+      run: >
+        echo DOTNET_ROOT=$DOTNET_ROOT
+
+        PkgFileName=$(ls deployables-Windows/Nerdbank.GitVersioning.*nupkg)
+
+        NBGV_NuGetPackageVersion=$([[ $PkgFileName =~ Nerdbank.GitVersioning\.(.*)\.nupkg ]] && echo "${BASH_REMATCH[1]}")
+
+        dotnet tool install nbgv --tool-path . --version $NBGV_NuGetPackageVersion --add-source deployables-Windows &&
+        ./nbgv get-version -f json -p lib &&
+        ./nbgv get-version -f json -p lib | grep 42.42.1
+
   perf_testing:
     name: 🫏 Performance testing