Support running on downloaded solution (#55)

src/Exercism.TestRunner.CSharp/FilesParser.cs

@@ -1,4 +1,5 @@
 using System.IO;
+using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 
@@ -16,7 +17,11 @@ private static string ConfigJson(Options options) =>
             File.ReadAllText(options.ConfigJsonPath());
 
         private static string ConfigJsonPath(this Options options) =>
-            Path.Combine(options.InputDirectory, ".meta", "config.json");
+            new[]
+            {
+                Path.Combine(options.InputDirectory, ".meta", "config.json"),
+                Path.Combine(options.InputDirectory, ".exercism", "config.json")
+            }.First(File.Exists);
     }
 
     internal class Files

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/DownloadedSolution/.exercism/Example.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/DownloadedSolution/.exercism/config.json

@@ -0,0 +1,7 @@
+{
+  "files": {
+    "solution": ["Fake.cs"],
+    "test": ["FakeTests.cs"],
+    "example": [".meta/Example.cs"]
+  }
+}

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

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

test/Exercism.TestRunner.CSharp.IntegrationTests/Solutions/DownloadedSolution/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

@@ -150,5 +150,12 @@ public void UseCultureAttribute()
             var testRun = TestSolutionRunner.Run("UseCultureAttribute");
             Assert.Equal(testRun.Expected, testRun.Actual);
         }
+
+        [Fact]
+        public void DownloadedSolution()
+        {
+            var testRun = TestSolutionRunner.Run("DownloadedSolution");
+            Assert.Equal(testRun.Expected, testRun.Actual);
+        }
     }
 }