Add unit tests for the config

.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"

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version: 6.0
+// swift-tools-version: 6.1
 
 import PackageDescription
 
@@ -38,14 +38,11 @@ let package = Package(
       .upToNextMinor(from: "1.6.2")
     ),
 
-    // TODO: Review which tag / Swift release to use
-    // - Initially it may be strict and sometimes "enforce" specific Xcode/Swift toolchains
-    // - For now pinned to the 6.1 release / Xcode 16.3
-    //
-    // It auto exports SwiftToolsSupport, so no need to directly depend on the former 🙏
+    // - Pinned to the the Swift 6.2 development / Xcode 16.3
+    // It auto exports SwiftToolsSupport, so no need to directly depend it 🙏
     .package(
       url: "https://github.com/apple/swift-package-manager",
-      revision: "swift-6.1-RELEASE"
+      revision: "swift-6.2-RELEASE"
     ),
     .package(
       url: "https://github.com/aus-der-Technik/FileMonitor",
@@ -67,20 +64,29 @@ let package = Package(
           name: "SwiftPMDataModel",
           package: "swift-package-manager"
         ),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
     .target(
       name: "SPMGraphLint",
       dependencies: [
         .target(name: "Core"),
         .target(name: "SPMGraphDescriptionInterface"),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
     .target(
       name: "SPMGraphTests",
       dependencies: [
         .target(name: "Core"),
         .target(name: "SPMGraphDescriptionInterface"),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
     .target(
@@ -94,6 +100,9 @@ let package = Package(
       ],
       resources: [
         .copy("Resources")
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
 
@@ -107,6 +116,9 @@ let package = Package(
           package: "swift-package-manager"
         ),
         .target(name: "Core"),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
 
@@ -119,6 +131,9 @@ let package = Package(
           name: "SwiftPMDataModel",
           package: "swift-package-manager"
         )
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
 
@@ -135,6 +150,9 @@ let package = Package(
           name: "ArgumentParser",
           package: "swift-argument-parser"
         ),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     ),
 
@@ -144,6 +162,43 @@ let package = Package(
       name: "SPMGraphExecutableTests",
       dependencies: [
         .target(name: "SPMGraphExecutable"),
+        .target(name: "FixtureSupport"),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
+      ]
+    ),
+    .testTarget(
+      name: "SPMGraphDescriptionInterfaceTests",
+      dependencies: [
+        .target(name: "SPMGraphDescriptionInterface"),
+        .target(name: "Core"),
+        .target(name: "FixtureSupport"),
+        .product(
+          name: "ArgumentParser",
+          package: "swift-argument-parser"
+        ),
+      ],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
+      ]
+    ),
+
+    // MARK: - Test support
+
+    .target(
+      name: "FixtureSupport",
+      dependencies: [
+        .target(name: "SPMGraphDescriptionInterface"),
+        .target(name: "Core"),
+        .product(
+          name: "ArgumentParser",
+          package: "swift-argument-parser"
+        ),
+      ],
+      resources: [.copy("Resources")],
+      swiftSettings: [
+        .enableExperimentalFeature("StrictConcurrency")
       ]
     )
   ]

README.md

@@ -1,7 +1,7 @@
 # `spmgraph`: SwiftPM dependency graphs supercharged ⚡
 
 [![CI status](https://github.com/getyourguide/spmgraph/actions/workflows/main.yml/badge.svg)](https://github.com/getyourguide/spmgraph/actions/workflows/main.yml)
-![Toolchain](https://img.shields.io/badge/Swift-6.0+%20%7C%20Xcode%2016%2B-orange?logo=swift&logoColor=white)
+![Toolchain](https://img.shields.io/badge/Swift-6.1+%20%7C%20Xcode%2016%3B-orange?logo=swift&logoColor=white)
 [![Mint](https://img.shields.io/badge/Mint-getyourguide%2Fspmgraph-40c8a7?logo=leaf&logoColor=white)](https://github.com/getyourguide/spmgraph#installation)
 [![Swift Package Manager](https://rawgit.com/jlyonsmith/artwork/master/SwiftPackageManager/swiftpackagemanager-compatible.svg)](https://swift.org/package-manager/)
 
@@ -151,8 +151,5 @@ mint install getyourguide/spmgraph
 ## Acknowledgments
 - Inspired by the work that the [Tuist](https://tuist.dev/) team does for the Apple developers community and their focus on leveraging the dependency graph to provide amazing features for engineers. Also, a source of inspiration for our shell abstraction layer.
 
-## Open roadmap
-- [ ] Cover the core logic of Lint, Map, and Visualize libs with tests
-
 ## Contributing
 Check the [CONTRIBUTING.md](./CONTRIBUTING.md) file.