Hang when argument not supplied (#171)

.github/workflows/dotnet.yaml

@@ -38,7 +38,30 @@ jobs:
     - name: Build
       run: 'nix develop --command dotnet build --no-restore --configuration ${{matrix.config}}'
     - name: Test
-      run: 'nix develop --command dotnet test --no-build --verbosity normal --configuration ${{matrix.config}} --framework net8.0'
+      run: |
+          nix develop --command dotnet test --no-build --verbosity normal --configuration ${{matrix.config}} --framework net8.0 --filter 'FullyQualifiedName !~ FailingConsumer'
+
+  selftest-intended-failures:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 # so that NerdBank.GitVersioning has access to history
+    - name: Install Nix
+      uses: cachix/install-nix-action@v30
+      with:
+        extra_nix_config: |
+          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+    - name: Restore dependencies
+      run: nix develop --command dotnet restore
+    - name: Build
+      run: 'nix develop --command dotnet build --no-restore --configuration Release'
+    - name: Test using self
+      run: 'nix develop --command dotnet exec ./WoofWare.NUnitTestRunner/bin/Release/net6.0/WoofWare.NUnitTestRunner.dll ./FailingConsumer/bin/Release/net8.0/FailingConsumer.dll --trx TrxOut/out.trx || true'
+    - name: Munge output
+      run: 'nix develop --command xmlstarlet sel -N x="http://microsoft.com/schemas/VisualStudio/TeamTest/2010" -t -m "//x:UnitTestResult" -v "@testName" -o ": " -v ".//x:ErrorInfo/x:Message" -n TrxOut/out.trx > snapshot.txt'
+    - name: Check output matches expected
+      run: 'actual=$(cat snapshot.txt | sort) expected=$(cat FailingConsumer/expected.txt | sort) [ "$expected" == "$actual" ]'
 
   selftest:
     runs-on: ubuntu-latest