Add Actions (#1)

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://json.schemastore.org/dependabot-2.0.json
+version: 2
+updates:
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  - package-ecosystem: "nuget"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    ignore:
+      # Target the lowest version of FSharp.Core, for max compat
+      - dependency-name: "FSharp.Core"

.github/workflows/dotnet.yaml

@@ -0,0 +1,133 @@
+# yaml-language-server: $schema=https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/github-workflow.json
+name: .NET
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  DOTNET_NOLOGO: true
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+  NUGET_XMLDOC_MODE: ''
+  DOTNET_MULTILEVEL_LOOKUP: 0
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        config:
+          - Release
+          - Debug
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0 # so that NerdBank.GitVersioning has access to history
+    - name: Install Nix
+      uses: cachix/install-nix-action@V27
+      with:
+        extra_nix_config: |
+          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+    - name: Restore dependencies
+      run: nix develop --command dotnet restore
+    - name: Build
+      run: nix develop --command dotnet build --no-restore --configuration ${{matrix.config}}
+    - name: Test
+      run: nix develop --command dotnet test --no-build --verbosity normal --configuration ${{matrix.config}}
+
+  analyzers:
+    runs-on: ubuntu-latest
+    permissions:
+      security-events: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # so that NerdBank.GitVersioning has access to history
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Prepare analyzers
+        run: nix develop --command dotnet restore analyzers/analyzers.fsproj
+      - name: Build project
+        run: nix develop --command dotnet build ./TestRunner/TestRunner.fsproj
+      - name: Run analyzers
+        run: nix run .#fsharp-analyzers -- --project ./TestRunner/TestRunner.fsproj --analyzers-path ./.analyzerpackages/g-research.fsharp.analyzers/*/ --verbosity detailed --report ./analysis.sarif --treat-as-error GRA-STRING-001 GRA-STRING-002 GRA-STRING-003 GRA-UNIONCASE-001 GRA-INTERPOLATED-001 GRA-TYPE-ANNOTATE-001 GRA-VIRTUALCALL-001 GRA-IMMUTABLECOLLECTIONEQUALITY-001 GRA-JSONOPTS-001 GRA-LOGARGFUNCFULLAPP-001 GRA-DISPBEFOREASYNC-001 --exclude-analyzers PartialAppAnalyzer
+
+  build-nix:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Build
+        run: nix build
+
+  check-dotnet-format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Run Fantomas
+        run: nix run .#fantomas -- --check .
+
+  check-nix-format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Run Alejandra
+        run: nix develop --command alejandra --check .
+
+  linkcheck:
+    name: Check links
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Run link checker
+        run: nix develop --command markdown-link-check README.md
+
+  flake-check:
+    name: Check flake
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - name: Install Nix
+        uses: cachix/install-nix-action@V27
+        with:
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+      - name: Flake check
+        run: nix flake check
+
+  all-required-checks-complete:
+    needs: [check-dotnet-format, check-nix-format, build, build-nix, linkcheck, flake-check, analyzers]
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "All required checks complete."

README.md

@@ -0,0 +1 @@
+# Toy NUnit test runner

TestRunner/Filter.fs

@@ -161,7 +161,7 @@ module FilterIntermediate =
                 ConsumeBeforeInitialToken = false
                 ConsumeAfterFinalToken = false
                 BoundaryTokens = [ TokenType.CloseParen ]
-                Construct = Seq.exactlyOne
+                Construct = List.exactlyOne
             }
 
     let parse (s : string) : FilterIntermediate =

TestRunner/Program.fs

@@ -129,6 +129,11 @@ type TestFailure =
     | TestReturnedNonUnit of obj
     | TestThrew of exn
 
+    override this.ToString () =
+        match this with
+        | TestFailure.TestReturnedNonUnit ret -> $"Test returned a non-unit: %O{ret}"
+        | TestFailure.TestThrew exc -> $"Test threw: %s{exc.Message}\n  %s{exc.StackTrace}"
+
 [<RequireQualifiedAccess>]
 module TestFixture =
     let private runOne (test : MethodInfo) (args : obj[]) : Result<unit, TestFailure> =
@@ -229,7 +234,7 @@ module TestFixture =
                     for result in results do
                         match result with
                         | Error exc ->
-                            eprintfn $"Test failed: {exc}"
+                            eprintfn $"Test failed: %O{exc}"
                             Interlocked.Increment testFailures |> ignore<int>
                         | Ok () -> Interlocked.Increment testSuccess |> ignore<int>
 

analyzers/analyzers.fsproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.Build.NoTargets/1.0.80"> <!-- This is not a project we want to build. -->
+
+  <PropertyGroup>
+    <IsPackable>false</IsPackable>
+    <IsPublishable>false</IsPublishable>
+    <RestorePackagesPath>../.analyzerpackages/</RestorePackagesPath>
+    <TargetFramework>net6.0</TargetFramework>
+    <DisableImplicitNuGetFallbackFolder>true</DisableImplicitNuGetFallbackFolder>
+    <AutomaticallyUseReferenceAssemblyPackages>false</AutomaticallyUseReferenceAssemblyPackages> <!-- We don't want to build this project, so we do not need the reference assemblies for the framework we chose.-->
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageDownload Include="G-Research.FSharp.Analyzers" Version="[0.10.0]" />
+  </ItemGroup>
+
+</Project>