From c91a0a87d1497041b3f9f1c0e815c5f2d7422456 Mon Sep 17 00:00:00 2001
From: NeilKleistGao <neilkleist@gmail.com>
Date: Fri, 16 Aug 2024 20:56:09 +0800
Subject: [PATCH] WIP: Implement diff test

---
 .github/workflows/test.yml |   2 +-
 scripts/test.sh            |   1 +
 scripts/test_all.sh        |   1 +
 tests/DiffTests.cs         | 116 +++++++++++++++++++++++++++++++++++--
 tests/tests.csproj         |   1 +
 5 files changed, 116 insertions(+), 5 deletions(-)
 create mode 100755 scripts/test.sh
 create mode 100755 scripts/test_all.sh

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0dda122..88ae0fe 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,4 +8,4 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Test
-        run: dotnet test tests/tests.csproj
+        run: ./script/test_all.sh
diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 0000000..f84ca04
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1 @@
+dotnet test tests/tests.csproj --filter "DisplayName~%22$1.mario%22"
diff --git a/scripts/test_all.sh b/scripts/test_all.sh
new file mode 100755
index 0000000..856d0e8
--- /dev/null
+++ b/scripts/test_all.sh
@@ -0,0 +1 @@
+dotnet test tests/tests.csproj
diff --git a/tests/DiffTests.cs b/tests/DiffTests.cs
index 6fadb97..2179762 100644
--- a/tests/DiffTests.cs
+++ b/tests/DiffTests.cs
@@ -1,8 +1,116 @@
+using System.Diagnostics;
+
 namespace tests;
 
-public class DiffTests {
-  [Fact]
-  public void ExecuteDiffTests() {
-    Assert.True(true); // TODO
+public enum GitStatus {
+  Modified,
+  Renamed,
+  Added,
+  Other
+}
+
+enum TestResult {
+  Success,
+  Fail,
+  Timeout
+}
+
+public class GitDiffData: IDisposable {
+  private Dictionary<string, GitStatus> fileStatus = new Dictionary<string, GitStatus>();
+
+  public GitDiffData() {
+    var shell = new Process();
+    shell.StartInfo.FileName = "bash"; // TODO: different system
+    shell.StartInfo.UseShellExecute = false;
+    shell.StartInfo.RedirectStandardInput = true;
+    shell.StartInfo.RedirectStandardOutput = true;
+    shell.StartInfo.RedirectStandardError = false;
+    shell.StartInfo.CreateNoWindow = true;
+    shell.Start();
+    shell.StandardInput.WriteLine("git status --porcelain " + String.Join("/", System.Environment.CurrentDirectory, DiffTests.testPath));
+    shell.StandardInput.Close();
+    string res = shell.StandardOutput.ReadToEnd();
+    shell.WaitForExit();
+    shell.Close();
+
+    Array.ForEach(res.Split('\n'), line => {
+      if (line.Length < 3) { return; }
+
+      string s = line.TrimStart()[..2];
+      string path = line[(line.LastIndexOf("/") + 1)..];
+      path = path[..(path.Length - 1)];
+      if (path.EndsWith(DiffTests.testExtension)) {
+        var status = GitStatus.Other;
+        switch (s) {
+          case "A ":
+          case "??":
+            status = GitStatus.Added;
+            break;
+          case "M ":
+            status = GitStatus.Modified;
+            break;
+          case "R ":
+            status = GitStatus.Renamed;
+            break;
+        }
+        fileStatus[path] = status;
+      }
+    });
+  }
+
+  public void Dispose(){}
+
+  public bool NeedToTest(string filename) {
+    GitStatus s;
+    bool flag = fileStatus.TryGetValue(filename, out s);
+    return fileStatus.Count == 0 ? true : !flag && s != GitStatus.Other;
+  }
+}
+
+public class DiffTests: IClassFixture<GitDiffData> {
+  private readonly static int timeLimit = 3000; // ms
+
+  public readonly static string testPath = "../../../mario";
+  public readonly static string testExtension = ".mario";
+
+  private GitDiffData diffData;
+  public DiffTests(GitDiffData data) {
+    diffData = data;
+  }
+
+  [SkippableTheory]
+  [MemberData(nameof(GetFileList))]
+  public void ExecuteDiffTests(string filename) {
+    string caseName = filename[(filename.LastIndexOf("/") + 1)..];
+    Skip.IfNot(diffData.NeedToTest(caseName));
+    var reader = new StreamReader(filename);
+    var result = TestResult.Success;
+    DateTime begin = DateTime.Now;
+    // TODO: test
+    DateTime end = DateTime.Now;
+    int time = (end - begin).Milliseconds;
+    var color = ConsoleColor.Green;
+
+    if (result == TestResult.Success && time > timeLimit) {
+      color = ConsoleColor.Gray;
+    }
+    else if (result == TestResult.Fail) {
+      color = ConsoleColor.Red;
+    }
+    ConsoleColor backup = Console.ForegroundColor;
+    Console.ForegroundColor = color;
+    Console.WriteLine("> Case " + caseName + ": " + time.ToString() + " ms.");
+    Console.ForegroundColor = backup;
+    Console.WriteLine();
+    reader.Close();
+  }
+
+  public static IEnumerable<object[]> GetFileList() {
+    var directory = new DirectoryInfo(testPath);
+    foreach (FileInfo file in directory.GetFiles()) {
+      if (file.Extension == testExtension) {
+        yield return new object[] { file.FullName };
+      }
+    }
   }
 }
diff --git a/tests/tests.csproj b/tests/tests.csproj
index c93f164..7289938 100644
--- a/tests/tests.csproj
+++ b/tests/tests.csproj
@@ -19,6 +19,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
+    <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
   </ItemGroup>
 
   <ItemGroup>