Support editor files (#57)

src/Exercism.TestRunner.CSharp/FilesParser.cs

@@ -1,3 +1,4 @@
+using System;
 using System.IO;
 using System.Linq;
 using System.Text.Json;
@@ -27,10 +28,13 @@ private static string ConfigJsonPath(this Options options) =>
     internal class Files
     {
         [JsonPropertyName("solution")]
-        public string[] Solution { get; set; }
+        public string[] Solution { get; set; } = Array.Empty<string>();
 
         [JsonPropertyName("test")]
-        public string[] Test { get; set; }
+        public string[] Test { get; set; } = Array.Empty<string>();
+
+        [JsonPropertyName("editor")]
+        public string[] Editor { get; set; } = Array.Empty<string>();
     }
 
     internal class Configuration

src/Exercism.TestRunner.CSharp/TestCompilation.cs

@@ -21,9 +21,10 @@ public static Compilation Compile(Options options, Files files) =>
         private static IEnumerable<SyntaxTree> SyntaxTrees(Options options, Files files)
         {
             var solutionFiles = files.Solution.Select(file => ParseSyntaxTree(file, options));
+            var editorFiles = files.Editor.Select(file => ParseSyntaxTree(file, options));
             var testFiles = files.Test.Select(file => ParseSyntaxTree(file, options).Rewrite());
 
-            return solutionFiles.Concat(testFiles);
+            return solutionFiles.Concat(editorFiles).Concat(testFiles);
         }
 
         private static SyntaxTree ParseSyntaxTree(string file, Options options)

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/.meta/config.json

@@ -0,0 +1,8 @@
+{
+  "files": {
+    "solution": ["Fake.cs"],
+    "test": ["FakeTests.cs"],
+    "editor": ["FakeTestsHelper.cs"],
+    "example": [".meta/Example.cs"]
+  }
+}

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/Fake.cs

@@ -0,0 +1,4 @@
+public static class Fake
+{
+    public static int Add(int x, int y) => x + y;
+}

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/Fake.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Remove="Example.cs" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
+    <PackageReference Include="Exercism.Tests" Version="0.1.0-alpha" />
+  </ItemGroup>
+
+</Project>

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/FakeTests.cs

@@ -0,0 +1,6 @@
+using Xunit;
+public class FakeTests
+{
+    [Fact]
+    public void Add_should_add_numbers() => FakeTestsHelper.AssertAdd(2, 1, 1);
+}

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/FakeTestsHelper.cs

@@ -0,0 +1,7 @@
+using Xunit;
+
+public static class FakeTestsHelper
+{
+    public static void AssertAdd(int expected, int x, int y) =>
+        Assert.Equal(expected, Fake.Add(x, y));
+}

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/EditorFiles/expected_results.json

@@ -0,0 +1,11 @@
+{
+  "version": 3,
+  "status": "pass",
+  "tests": [
+    {
+      "name": "Add should add numbers",
+      "status": "pass",
+      "test_code": "Assert.Equal(2, Fake.Add(1, 1))"
+    }
+  ]
+}

test/Exercism.TestRunner.CSharp.IntegrationTests/TestRunnerTests.cs

@@ -157,5 +157,12 @@ public void DownloadedSolution()
             var testRun = TestSolutionRunner.Run("DownloadedSolution");
             Assert.Equal(testRun.Expected, testRun.Actual);
         }
+
+        [Fact]
+        public void EditorFiles()
+        {
+            var testRun = TestSolutionRunner.Run("EditorFiles");
+            Assert.Equal(testRun.Expected, testRun.Actual);
+        }
     }
 }