Tests: Add test for FrmEcho.

VAR.WebFormsCore.Tests/Code/ExtensionMethodsTests.cs

@@ -97,7 +97,7 @@ public class ExtensionMethodsTests
         fakeWebContext.ResponseObject(new object());
 
         Assert.Single(fakeWebContext.FakeWritePackages);
-        Assert.Equal("{ }", Encoding.UTF8.GetString(fakeWebContext.FakeWritePackages[0].Bin ?? Array.Empty<byte>()));
+        Assert.Equal("{ }", fakeWebContext.FakeWritePackages[0].ToString());
     }
     
     #endregion ResponseObject

VAR.WebFormsCore.Tests/Fakes/FakeWebContext.cs

@@ -1,3 +1,4 @@
+using System.Text;
 using VAR.WebFormsCore.Code;
 
 namespace VAR.WebFormsCore.Tests.Fakes;
@@ -21,12 +22,6 @@ public class FakeWebContext : IWebContext
     
     public Dictionary<string, string?> RequestForm { get; } = new();
     
-    public struct WritePackage
-    {
-        public string? Text { get; set; }
-        public byte[]? Bin { get; set; }
-    }
-
     public List<WritePackage> FakeWritePackages { get; } = new();
 
     public void ResponseWrite(string text)
@@ -79,4 +74,36 @@ public class FakeWebContext : IWebContext
     {
         throw new NotImplementedException();
     }
-}
+}
+
+public struct WritePackage
+{
+    public string? Text { get; set; }
+    public byte[]? Bin { get; set; }
+
+    public override string ToString()
+    {
+        if (Text != null)
+        {
+            return Text;
+        }
+
+        if (Bin == null)
+        {
+            return string.Empty;
+        }
+
+        string text = Encoding.UTF8.GetString(Bin ?? Array.Empty<byte>());
+        return text;
+    }
+}
+
+public static class WritePackageExtensions
+{
+    public static string ToString(this List<WritePackage> list, string separator)
+    {
+        IEnumerable<string> listStrings = list.Select(x => x.ToString());
+        string result = string.Join(separator, listStrings);
+        return result;
+    }
+}

VAR.WebFormsCore.Tests/Pages/FrmEchoTests.cs

@@ -0,0 +1,67 @@
+using VAR.WebFormsCore.Pages;
+using VAR.WebFormsCore.Tests.Fakes;
+using Xunit;
+
+namespace VAR.WebFormsCore.Tests.Pages;
+
+public class FrmEchoTests
+{
+    [Fact]
+    public void ProcessRequest__Empty__Empty()
+    {
+        FakeWebContext fakeWebContext = new();
+        FrmEcho frmEcho = new();
+        
+        frmEcho.ProcessRequest(fakeWebContext);
+
+        string result = fakeWebContext.FakeWritePackages.ToString("");
+        Assert.Equal(
+            expected:   """
+                        <pre><code>Header:{ }
+                        Query:{ }
+                        Form:{ }
+                        </code></pre>
+                        """,
+            actual: result);
+    }
+    
+    [Fact]
+    public void ProcessRequest__OneQueryParameterGet__FormData()
+    {
+        FakeWebContext fakeWebContext = new();
+        fakeWebContext.RequestQuery.Add("Test", "Value");
+        FrmEcho frmEcho = new();
+        
+        frmEcho.ProcessRequest(fakeWebContext);
+
+        string result = fakeWebContext.FakeWritePackages.ToString("");
+        Assert.Equal(
+            expected:   """
+                        <pre><code>Header:{ }
+                        Query:{ "Test": "Value" }
+                        Form:{ }
+                        </code></pre>
+                        """,
+            actual: result);
+    }
+    
+    [Fact]
+    public void ProcessRequest__OneFormParameterPost__FormData()
+    {
+        FakeWebContext fakeWebContext = new(requestMethod: "POST");
+        fakeWebContext.RequestForm.Add("Test", "Value");
+        FrmEcho frmEcho = new();
+        
+        frmEcho.ProcessRequest(fakeWebContext);
+
+        string result = fakeWebContext.FakeWritePackages.ToString("");
+        Assert.Equal(
+            expected:   """
+                        <pre><code>Header:{ }
+                        Query:{ }
+                        Form:{ "Test": "Value" }
+                        </code></pre>
+                        """,
+            actual: result);
+    }
+}