ci: run the unit and integration suites as separate steps

Keeps the signal readable when one of them fails, and makes the Testcontainers
step explicit about needing the runner's Docker daemon.

Author: louzoshi

.github/workflows/ci.yml

@@ -24,8 +24,17 @@ jobs:
       - name: Build
         run: dotnet build Trust-Finance.sln --configuration Release --no-restore
 
-      - name: Test
-        run: dotnet test Trust-Finance.sln --configuration Release --no-build --verbosity normal
+      - name: Unit tests
+        run: >
+          dotnet test Trust-Finance.Tests/Trust-Finance.Tests.csproj
+          --configuration Release --no-build --verbosity normal
+
+      # Testcontainers starts a real SQL Server via the Docker daemon that is
+      # preinstalled on the GitHub-hosted runners.
+      - name: Integration tests (Testcontainers + SQL Server)
+        run: >
+          dotnet test Trust-Finance.IntegrationTests/Trust-Finance.IntegrationTests.csproj
+          --configuration Release --no-build --verbosity normal
 
   web:
     name: Web (build)