Add unit tests for the config

.github/actions/lint/action.yml

@@ -36,6 +36,9 @@
       **For users that leverage the lint capability and rely on the `SPMGraphConfig.swift` file**.
 
       A custom build directory that enables CI controlling and caching of the package used to edit and load the SPMGraphConfig.
+      It defaults to a temporary directory, which works consistently for local runs and CI with clean builds.
+
+      - **Note**: Cache this directory in your CI and reuse whenever the `SPMGraphConfig.swift` is stable for reducing the build times.
 
       - **Warning**: Ensure this is consistent across commands, otherwise your configuration won't be correctly loaded!
     required: false
@@ -48,7 +51,7 @@
     - id: lint-dependency-graph
       name: Run spmgraph lint
       run: |
-        spmgraph lint ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.strict == 'true' && '--strict' || '' }} --output lint_output ${{ inputs.config-build-directory && '--config-build-directory ${{ inputs.config-build-directory }}' || '' }}
+        spmgraph lint ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.strict == 'true' && '--strict' || '' }} --output lint_output ${{ inputs.config-build-directory != '' && format('--config-build-directory "{0}"', inputs.config-build-directory) || '' }}
 
         # Set boolean output to indicate if lint failed or not
         echo "lint-failed=$(cat $GITHUB_WORKSPACE/.spmgraph_lint_result.txt)" >> $GITHUB_OUTPUT

.github/actions/tests/action.yml

@@ -33,6 +33,9 @@
       **For users that leverage the lint capability and rely on the `SPMGraphConfig.swift` file**.
 
       A custom build directory that enables CI controlling and caching of the package used to edit and load the SPMGraphConfig.
+      It defaults to a temporary directory, which works consistently for local runs and CI with clean builds.
+
+      - **Note**: Cache this directory in your CI and reuse whenever the `SPMGraphConfig.swift` is stable for reducing the build times.
 
       - **Warning**: Ensure this is consistent across commands, otherwise your configuration won't be correctly loaded!
     required: false
@@ -55,7 +58,7 @@
       name: Run spmgraph tests
       run: |
         # note: changed-files takes precedence over baseBranch
-        spmgraph tests ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} --baseBranch ${{ github.base_ref || 'main' }} --output ${{ inputs.output-format }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.changed-files && '--changed-files ${{ inputs.changed-files }}' || '' }} ${{ inputs.config-build-directory && '--config-build-directory ${{ inputs.config-build-directory }}' || '' }} ${{ inputs.experimental-ui-test-targets == 'true' && '--experimentalUITest' || '' }}
+        spmgraph tests ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} --baseBranch ${{ github.base_ref || 'main' }} --output ${{ inputs.output-format }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.changed-files && '--changed-files ${{ inputs.changed-files }}' || '' }} ${{ inputs.config-build-directory != '' && format('--config-build-directory "{0}"', inputs.config-build-directory) || '' }} ${{ inputs.experimental-ui-test-targets == 'true' && '--experimentalUITest' || '' }}
         if [ ! -s "$GITHUB_WORKSPACE/output.txt" ]; then
           echo "tests_needed=false" >> $GITHUB_OUTPUT
         else

.github/actions/visualize/action.yml

@@ -25,20 +25,12 @@ inputs:
     description: Minimum vertical spacing between the ranks (levels) of the graph. A double value in inches.
     type: number
     default: '3'
-  config-build-directory:
-    description: >
-      **For users that leverage the lint capability and rely on the `SPMGraphConfig.swift` file**.
-
-      A custom build directory that enables CI controlling and caching of the package used to edit and load the SPMGraphConfig.
-
-      - **Warning**: Ensure this is consistent across commands, otherwise your configuration won't be correctly loaded!
-    required: false
 
 runs:
   using: 'composite'
   steps:
     - name: Run spmgraph visualize
       run: |
-        spmgraph visualize ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.focused-module && '--focusedModule ${{ inputs.focused-module }}' || '' }} ${{ inputs.exclude-third-party-dependencies =='true' && '--excludeThirdPartyDependencies ${{ inputs.exclude-third-party-dependencies }}' || '' }} --outputFilePath ${{ inputs.output-file-path }} --rankSpacing ${{ inputs.rank-spacing }} ${{ inputs.config-build-directory && '--config-build-directory ${{ inputs.config-build-directory }}' || '' }}
+        spmgraph visualize ${{ inputs.package-directory }} ${{ inputs.verbose == 'true' && '-v' || '' }} ${{ inputs.excluded-suffixes && '--excludedSuffixes ${{ inputs.excluded-suffixes }}' || '' }} ${{ inputs.focused-module && '--focusedModule ${{ inputs.focused-module }}' || '' }} ${{ inputs.exclude-third-party-dependencies =='true' && '--excludeThirdPartyDependencies ${{ inputs.exclude-third-party-dependencies }}' || '' }} --outputFilePath ${{ inputs.output-file-path }} --rankSpacing ${{ inputs.rank-spacing }}
       shell: /bin/bash -e {0}
 

.github/workflows/pull-request.yml

@@ -10,13 +10,13 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:        
-  build_and_tests:
-    name: Build and run tests
-    runs-on: [self-hosted, macOS, ARM64, macstadium, bare-metal] # TODO: Replace with GitHub Action runners once it goes open source
+  build_xcode_16:
+    name: Build and run tests on Xcode 16.4
+    runs-on: [macos-orka-large] # TODO: Replace with GitHub Action runners once it goes open source
     permissions:
-        id-token: write
-        contents: read
-        checks: write
+      id-token: write
+      contents: read
+      checks: write
     steps:
     - name: Check out repository
       uses: actions/checkout@v4
@@ -35,15 +35,34 @@ jobs:
     - name: Run tests on Xcode 16.4
       env:
         IS_RUNNING_TESTS: 1
-      run: swift test
+      run: swift test --no-parallel
       timeout-minutes: 3
 
+  build_xcode_26:
+    name: Build and run tests on Xcode 26.0.1
+    runs-on: [macos-orka-large] # TODO: Replace with GitHub Action runners once it goes open source
+    permissions:
+      id-token: write
+      contents: read
+      checks: write
+
+    steps:
+    - name: Check out repository
+      uses: actions/checkout@v4
+      timeout-minutes: 2
+
     - name: Select Xcode 26.0 toolchain
       uses: ./.github/actions/xcode-version
       with:
-        xcode-version: '26.0'
+        xcode-version: '26.0.1'
       timeout-minutes: 2
 
     - name: Build spmgraph for Xcode 26.0
       run: swift build
       timeout-minutes: 3
+
+    - name: Run tests on Xcode 26.0
+      env:
+        IS_RUNNING_TESTS: 1
+      run: swift test --no-parallel
+      timeout-minutes: 3

.gitignore

@@ -6,3 +6,6 @@ xcuserdata/
 DerivedData/
 .swiftpm/config/registries.json
 .swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+
+# Fixture packages
+**/Fixtures/**/.swiftpm/

.swiftpm/xcode/xcshareddata/xcschemes/spmgraph-Package.xcscheme

@@ -124,8 +124,55 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      shouldAutocreateTestPlan = "YES">
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <TestPlans>
+         <TestPlanReference
+            reference = "container:spmgraph.xctestplan"
+            default = "YES">
+         </TestPlanReference>
+      </TestPlans>
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "SPMGraphExecutableTests"
+               BuildableName = "SPMGraphExecutableTests"
+               BlueprintName = "SPMGraphExecutableTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "SPMGraphLintTests"
+               BuildableName = "SPMGraphLintTests"
+               BlueprintName = "SPMGraphLintTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "SPMGraphDescriptionInterfaceTests"
+               BuildableName = "SPMGraphDescriptionInterfaceTests"
+               BlueprintName = "SPMGraphDescriptionInterfaceTests"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "FixtureSupport"
+               BuildableName = "FixtureSupport"
+               BlueprintName = "FixtureSupport"
+               ReferencedContainer = "container:">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
    </TestAction>
    <LaunchAction
       buildConfiguration = "Debug"