From 4ba7b950acfad2d8fe398b22638c729cc337eb91 Mon Sep 17 00:00:00 2001
From: Mauro Cardillo <mauro.cardillo@vianov.it>
Date: Fri, 1 Sep 2023 23:48:18 +0200
Subject: [PATCH] Add some test for class FileSystem

---
 .../src/MemoryAdapter.cs                      |  9 +-
 .../FileSystem/FileSystemTest.cs              | 93 +++++++++++++++++++
 2 files changed, 97 insertions(+), 5 deletions(-)

diff --git a/src/FileSystem.Adapters.Memory/src/MemoryAdapter.cs b/src/FileSystem.Adapters.Memory/src/MemoryAdapter.cs
index 5b465a4..fae117d 100644
--- a/src/FileSystem.Adapters.Memory/src/MemoryAdapter.cs
+++ b/src/FileSystem.Adapters.Memory/src/MemoryAdapter.cs
@@ -191,13 +191,12 @@ public override async Task WriteFileAsync(string path, byte[] contents, bool ove
 
         public override async Task AppendFileAsync(string path, byte[] contents, CancellationToken cancellationToken = default)
         {
-            await GetFileAsync(path, cancellationToken);
-
-            var memoryFile = new MemoryFile();
+            var file = await GetFileAsync(path, cancellationToken);
 
-            await Task.Run(() => _files.TryGetValue(path, out var memoryFile));
+            var content = file.Content ?? Array.Empty<byte>();
+            file.Content = content.Concat(contents).ToArray();
 
-            memoryFile.Content = memoryFile.Content.Concat(contents).ToArray();
+            await Task.Run(() => _files[PrependRootPath(path)].Content = file.Content);
         }
     }
 }
diff --git a/tests/FileSystem.Tests/FileSystem/FileSystemTest.cs b/tests/FileSystem.Tests/FileSystem/FileSystemTest.cs
index 81d9fc6..b703ebb 100644
--- a/tests/FileSystem.Tests/FileSystem/FileSystemTest.cs
+++ b/tests/FileSystem.Tests/FileSystem/FileSystemTest.cs
@@ -474,6 +474,23 @@ public void FileSystem_WriteFile_IfOverwriteFile_Should_ReturnContentOverWrite()
         Assert.AreEqual("HelloWorldOverWrite", System.Text.Encoding.UTF8.GetString(file.Content));
     }
 
+    [TestMethod]
+    [TestCategory("UnitTest")]
+    public void FileSystem_WriteFileString_IfSuccess_Should_ReturnFileExists()
+    {
+        //Arrange
+        var memoryAdapter = new MemoryAdapter("memory-1", "/");
+
+        var fileSystem = new Maurosoft.FileSystem.FileSystem();
+        fileSystem.Adapters.Add(memoryAdapter);
+
+        //Act
+        fileSystem.WriteFile("memory-1://home/helloworld.txt", "HelloWorld");
+
+        //Assert
+        Assert.IsTrue(fileSystem.FileExists("memory-1://home/helloworld.txt"));
+    }
+
     [TestMethod]
     [TestCategory("UnitTest")]
     public void FileSystem_CopyFile_IfSuccess_Should_ReturnExistsDestinationFile()
@@ -553,4 +570,80 @@ public void FileSystem_CopyFile_AcrossAdapter_IfOverWriteSuccess_Should_ReturnCo
         //Assert
         Assert.AreEqual("HelloWorldNew", System.Text.Encoding.UTF8.GetString(file.Content));
     }
+
+    [TestMethod]
+    [TestCategory("UnitTest")]
+    public void FileSystem_AppendFileByte_IfSuccess_Should_ReturnNewContentFile()
+    {
+        //Arrange
+        var memoryAdapter = new MemoryAdapter("memory-1", "/");
+
+        var fileSystem = new Maurosoft.FileSystem.FileSystem();
+        fileSystem.Adapters.Add(memoryAdapter);
+        fileSystem.WriteFile("memory-1://home/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("HelloWorld"));
+
+        //Act
+        fileSystem.AppendFile("memory-1://home/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("AppendFile"));
+        var file = fileSystem.GetFile("memory-1://home/helloworld.txt");
+
+        //Assert
+        Assert.AreEqual("HelloWorldAppendFile", System.Text.Encoding.UTF8.GetString(file.Content));
+    }
+
+    [TestMethod]
+    [TestCategory("UnitTest")]
+    public void FileSystem_AppendFileString_IfSuccess_Should_ReturnNewContentFile()
+    {
+        //Arrange
+        var memoryAdapter = new MemoryAdapter("memory-1", "/");
+
+        var fileSystem = new Maurosoft.FileSystem.FileSystem();
+        fileSystem.Adapters.Add(memoryAdapter);
+        fileSystem.WriteFile("memory-1://home/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("HelloWorld"));
+
+        //Act
+        fileSystem.AppendFile("memory-1://home/helloworld.txt", "AppendFile");
+        var file = fileSystem.GetFile("memory-1://home/helloworld.txt");
+
+        //Assert
+        Assert.AreEqual("HelloWorldAppendFile", System.Text.Encoding.UTF8.GetString(file.Content));
+    }
+
+    [TestMethod]
+    [TestCategory("UnitTest")]
+    public void FileSystem_MoveFile_IfSuccess_Should_ReturnFileSourceNotExist()
+    {
+        //Arrange
+        var memoryAdapter = new MemoryAdapter("memory-1", "/");
+
+        var fileSystem = new Maurosoft.FileSystem.FileSystem();
+        fileSystem.Adapters.Add(memoryAdapter);
+        fileSystem.WriteFile("memory-1://home/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("HelloWorld"));
+
+        //Act
+        fileSystem.MoveFile("memory-1://home/helloworld.txt", "memory-1://home1/helloworld.txt");
+
+        //Assert
+        Assert.IsFalse(fileSystem.FileExists("memory-1://home/helloworld.txt"));
+    }
+
+    [TestMethod]
+    [TestCategory("UnitTest")]
+    public void FileSystem_MoveFile_IfOverWriteDestinationFile_Should_ReturnFileSourceNotExist()
+    {
+        //Arrange
+        var memoryAdapter = new MemoryAdapter("memory-1", "/");
+
+        var fileSystem = new Maurosoft.FileSystem.FileSystem();
+        fileSystem.Adapters.Add(memoryAdapter);
+        fileSystem.WriteFile("memory-1://home1/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("HelloWorld1"));
+        fileSystem.WriteFile("memory-1://home2/helloworld.txt", System.Text.Encoding.UTF8.GetBytes("HelloWorld2"));
+
+        //Act
+        fileSystem.MoveFile("memory-1://home1/helloworld.txt", "memory-1://home2/helloworld.txt", true);
+        var file = fileSystem.GetFile("memory-1://home2/helloworld.txt");
+
+        //Assert
+        Assert.AreEqual("HelloWorld1", System.Text.Encoding.UTF8.GetString(file.Content));
+    }
 }
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