chore: Remove Sonar findings

Author: HofmeisterAn

src/Testcontainers/Builders/RootlessUnixEndpointAuthenticationProvider.cs

@@ -8,7 +8,7 @@ namespace DotNet.Testcontainers.Builders
 
   /// <inheritdoc cref="IDockerRegistryAuthenticationProvider" />
   [PublicAPI]
-  internal class RootlessUnixEndpointAuthenticationProvider : DockerEndpointAuthenticationProvider
+  internal partial class RootlessUnixEndpointAuthenticationProvider : DockerEndpointAuthenticationProvider
   {
     private const string DockerSocket = "docker.sock";
 
@@ -104,10 +104,17 @@ private interface IUserIdentity
 
     /// <inheritdoc cref="IUserIdentity" />
     [PublicAPI]
-    private sealed class Darwin : IUserIdentity
+    private sealed partial class Darwin : IUserIdentity
     {
-      [DllImport("libSystem")]
+      private const string LibraryName = "libSystem";
+
+#if NET7_0_OR_GREATER
+      [LibraryImport(LibraryName)]
+      private static partial ushort getuid();
+#else
+      [DllImport(LibraryName)]
       private static extern ushort getuid();
+#endif
 
       /// <inheritdoc />
       public ushort GetUid()
@@ -118,10 +125,17 @@ public ushort GetUid()
 
     /// <inheritdoc cref="IUserIdentity" />
     [PublicAPI]
-    private sealed class Linux : IUserIdentity
+    private sealed partial class Linux : IUserIdentity
     {
-      [DllImport("libc")]
+      private const string LibraryName = "libc";
+
+#if NET7_0_OR_GREATER
+      [LibraryImport(LibraryName)]
+      private static partial ushort getuid();
+#else
+      [DllImport(LibraryName)]
       private static extern ushort getuid();
+#endif
 
       /// <inheritdoc />
       public ushort GetUid()

src/Testcontainers/Containers/DockerContainer.cs

@@ -200,7 +200,11 @@ public TestcontainersStates State
 
         try
         {
+#if NETSTANDARD2_0
           return (TestcontainersStates)Enum.Parse(typeof(TestcontainersStates), _container.State.Status, true);
+#else
+          return Enum.Parse<TestcontainersStates>(_container.State.Status, true);
+#endif
         }
         catch (Exception)
         {
@@ -226,7 +230,11 @@ public TestcontainersHealthStatus Health
 
         try
         {
+#if NETSTANDARD2_0
           return (TestcontainersHealthStatus)Enum.Parse(typeof(TestcontainersHealthStatus), _container.State.Health.Status, true);
+#else
+          return Enum.Parse<TestcontainersHealthStatus>(_container.State.Health.Status, true);
+#endif
         }
         catch (Exception)
         {

src/Testcontainers/Containers/ResourceReaper.cs

@@ -363,15 +363,25 @@ await Task.Delay(TimeSpan.FromSeconds(RetryTimeoutInSeconds), ct)
                   if (indexOfNewLine == -1)
                   {
                     // We have not received the entire message yet. Read from stream again.
+#if NETSTANDARD2_0
                     await messageBuffer.WriteAsync(readBytes, 0, numberOfBytes, ct)
                       .ConfigureAwait(false);
+#else
+                    await messageBuffer.WriteAsync(readBytes.AsMemory(0, numberOfBytes), ct)
+                      .ConfigureAwait(false);
+#endif
 
                     hasAcknowledge = false;
                   }
                   else
                   {
+#if NETSTANDARD2_0
                     await messageBuffer.WriteAsync(readBytes, 0, indexOfNewLine, ct)
                       .ConfigureAwait(false);
+#else
+                    await messageBuffer.WriteAsync(readBytes.AsMemory(0, indexOfNewLine), ct)
+                      .ConfigureAwait(false);
+#endif
 
                     hasAcknowledge = "ack".Equals(Encoding.ASCII.GetString(messageBuffer.ToArray()), StringComparison.OrdinalIgnoreCase);
                     messageBuffer.SetLength(0);

src/Testcontainers/Testcontainers.csproj

@@ -5,6 +5,9 @@
     <Configurations>Debug;Release</Configurations>
     <RootNamespace>DotNet.Testcontainers</RootNamespace>
   </PropertyGroup>
+  <PropertyGroup>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="JetBrains.Annotations" VersionOverride="2023.3.0" PrivateAssets="All"/>
     <PackageReference Include="Docker.DotNet.Enhanced.X509"/>