From 824c9d250ce127c12f9afbc8d68fd484053b39e9 Mon Sep 17 00:00:00 2001
From: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date: Sun, 28 Apr 2024 11:24:01 -0500
Subject: [PATCH] Add net462 support to Tests.csproj

That's the only .NET Framework version supported by the MSTest.TestFramework
dependency.
---
 Tests/EncodeDecode.cs | 36 ++++++++++++++++++++++++++++++++++++
 Tests/Tests.csproj    | 10 ++++++++--
 2 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/Tests/EncodeDecode.cs b/Tests/EncodeDecode.cs
index 5476dcb..e1a1b03 100644
--- a/Tests/EncodeDecode.cs
+++ b/Tests/EncodeDecode.cs
@@ -3,7 +3,9 @@
 using System.Text;
 using NeoSmart.Utils;
 using System;
+#if NETCOREAPP
 using System.Buffers.Text;
+#endif
 using System.Buffers;
 
 namespace Tests
@@ -23,6 +25,29 @@ public void BasicTest()
             Assert.IsTrue(decoded.SequenceEqual(foo), "Decoded value mismatch!");
         }
 
+        [TestMethod]
+        public void DecodeFromArrayPadded1()
+        {
+            var encoding = new UTF8Encoding(false);
+            var foo = encoding.GetBytes("foo11");
+            var encoded = UrlBase64.Encode(foo, PaddingPolicy.Preserve);
+            Assert.AreEqual(Convert.ToBase64String(foo, Base64FormattingOptions.None).Replace('+', '-').Replace('/', '_'), encoded);
+            var decoded = UrlBase64.Decode(encoded);
+            CollectionAssert.AreEqual(foo, decoded);
+        }
+
+        [TestMethod]
+        public void DecodeFromArrayPadded2()
+        {
+            var encoding = new UTF8Encoding(false);
+            var foo = encoding.GetBytes("foo1");
+            var encoded = UrlBase64.Encode(foo, PaddingPolicy.Preserve);
+            Assert.AreEqual(Convert.ToBase64String(foo, Base64FormattingOptions.None).Replace('+', '-').Replace('/', '_'), encoded);
+            var decoded = UrlBase64.Decode(encoded);
+            CollectionAssert.AreEqual(foo, decoded.ToArray());
+        }
+
+#if NETCOREAPP
         [TestMethod]
         public void EncodeToSpan()
         {
@@ -75,6 +100,7 @@ public void DecodeFromSpanPadded1InsteadOf2()
             var decoded = UrlBase64.Decode(encoded.AsSpan(0, encoded.Length - 1));
             CollectionAssert.AreEqual(foo, decoded.ToArray());
         }
+#endif
 
         [TestMethod]
         public void VariableLengthTest()
@@ -108,6 +134,7 @@ public void VariableLengthTest()
             }
         }
 
+#if NETCOREAPP
         private static byte[] SystemEncodeUtf8(byte[] input)
         {
             var systemEncoded = new byte[UrlBase64.GetMaxEncodedLength(input.Length)];
@@ -152,6 +179,7 @@ public void Utf8VariableLengthTest()
                 }
             }
         }
+#endif
 
         [TestMethod]
         public void PaddingPolicyTest()
@@ -221,5 +249,13 @@ public static ReadOnlySpan<byte> TrimEnd(this ReadOnlySpan<byte> span, char trim
             for (; i >= 0 && span[i] == trim; --i) ;
             return span.Slice(0, i + 1);
         }
+
+        public static byte[] TrimEnd(this byte[] array, char trim)
+        {
+            int i = array.Length - 1;
+            for (; i >= 0 && array[i] == trim; --i) ;
+            Array.Resize(ref array, i + 1);
+            return array;
+        }
     }
 }
diff --git a/Tests/Tests.csproj b/Tests/Tests.csproj
index a6e7d9f..2d5a094 100644
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -1,17 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.0;net6</TargetFrameworks>
+    <TargetFrameworks>net462;netcoreapp3.0;net6</TargetFrameworks>
     <LangVersion>12.0</LangVersion>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' != 'net462'">
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0-preview-20170628-02" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.1.18" />
     <PackageReference Include="MSTest.TestFramework" Version="1.1.18" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'net462'">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="*" />
+    <PackageReference Include="MSTest.TestAdapter" Version="*" />
+    <PackageReference Include="MSTest.TestFramework" Version="*" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\UrlBase64\UrlBase64.csproj" />
   </ItemGroup>