Improve SGU logon resilience and client UX

2026-09-01 10:37:40 -06:00
parent 3d0897316d
commit da01343985
27 changed files with 869 additions and 37 deletions
@@ -0,0 +1,44 @@
+using System.Text;
+using SGU.AuthBroker.Core.Profiles;
+using Xunit;
+
+namespace SGU.AuthBroker.Core.Tests;
+
+public sealed class SguHtmlDecoderTests
+{
+    [Fact]
+    public void DecodesWindows1252WhenSguOmitsACharset()
+    {
+        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+        byte[] bytes = Encoding.GetEncoding(1252).GetBytes(
+            "<span>ANALISTA DE INMERSIÓN — FACULTAD DE INGENIERÍA</span>");
+
+        string decoded = SguHtmlDecoder.Decode(bytes);
+
+        Assert.Contains("INMERSIÓN", decoded, StringComparison.Ordinal);
+        Assert.Contains("INGENIERÍA", decoded, StringComparison.Ordinal);
+        Assert.Contains('—', decoded);
+        Assert.DoesNotContain('\uFFFD', decoded);
+    }
+
+    [Fact]
+    public void FallsBackWhenTheDeclaredUtf8CharsetIsIncorrect()
+    {
+        Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
+        byte[] bytes = Encoding.GetEncoding(1252).GetBytes("JESÚS GONZÁLEZ");
+
+        string decoded = SguHtmlDecoder.Decode(bytes, "utf-8");
+
+        Assert.Equal("JESÚS GONZÁLEZ", decoded);
+    }
+
+    [Fact]
+    public void HonorsValidUtf8WithoutADeclaration()
+    {
+        byte[] bytes = Encoding.UTF8.GetBytes("María del Carmen 🔐");
+
+        string decoded = SguHtmlDecoder.Decode(bytes);
+
+        Assert.Equal("María del Carmen 🔐", decoded);
+    }
+}