diff --git a/test/Mockaco.AspNetCore.Tests/Extensions/StringExtensionsTests.cs b/test/Mockaco.AspNetCore.Tests/Extensions/StringExtensionsTests.cs
new file mode 100644
index 0000000..f3a053f
--- /dev/null
+++ b/test/Mockaco.AspNetCore.Tests/Extensions/StringExtensionsTests.cs
@@ -0,0 +1,32 @@
+namespace Mockaco.AspNetCore.Tests.Extensions;
+
+public class StringExtensionsTests
+{
+    [Fact]
+    public void Returns_False_For_Null_String()
+    {
+        string? stringValue = null;
+        Assert.False(stringValue.IsRemoteAbsolutePath());
+    }
+
+    [Fact]
+    public void Returns_False_For_Empty_String()
+    {
+        string? stringValue = "";
+        Assert.False(stringValue.IsRemoteAbsolutePath());
+    }
+
+    [Fact]
+    public void Returns_False_For_Relative_Path()
+    {
+        string? stringValue = ".";
+        Assert.False(stringValue.IsRemoteAbsolutePath());
+    }
+
+    [Fact]
+    public void Returns_True_For_Absolute_Path()
+    {
+        string? stringValue = "http://www.github.com";
+        Assert.True(stringValue.IsRemoteAbsolutePath());
+    }
+}
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