Added float extensions tests

src/ImageProcessor.UnitTests/Extensions/FloatExtensionsUnitTests.cs

@@ -0,0 +1,58 @@
+namespace ImageProcessor.UnitTests.Extensions
+{
+    using ImageProcessor.Common.Extensions;
+
+    using NUnit.Framework;
+
+    /// <summary>
+    /// The float extensions unit tests.
+    /// </summary>
+    public class FloatExtensionsUnitTests
+    {
+        /// <summary>
+        /// The when to byte.
+        /// </summary>
+        [TestFixture]
+        public class WhenToByte
+        {
+            /// <summary>
+            /// The then should constrain input to 255 given float more than 255.
+            /// </summary>
+            /// <param name="value">
+            /// The value.
+            /// </param>
+            [Test]
+            [TestCase(256)]
+            [TestCase(512)]
+            [TestCase(1024)]
+            public void ThenShouldConstrainInputTo255GivenFloatMoreThan255(float value)
+            {
+                // Arrange // Act
+                var result = value.ToByte();
+
+                // Assert
+                Assert.That(result, Is.EqualTo(255));
+            }
+
+            /// <summary>
+            /// The then should constrain input to 0 given float less than 0.
+            /// </summary>
+            /// <param name="value">
+            /// The value.
+            /// </param>
+            [Test]
+            [TestCase(-256)]
+            [TestCase(-512)]
+            [TestCase(-1024)]
+            public void ThenShouldConstrainInputTo0GivenFloatLessThan0(float value)
+            {
+                // Arrange // Act
+                var result = value.ToByte();
+
+                // Assert
+                Assert.That(result, Is.EqualTo(0));
+            }
+
+        } 
+    }
+}

src/ImageProcessor.UnitTests/ImageProcessor.UnitTests.csproj

@@ -58,6 +58,7 @@
   <ItemGroup>
     <Compile Include="AssertionHelpers.cs" />
     <Compile Include="Configuration\ImageProcessorBootstrapperTests.cs" />
+    <Compile Include="Extensions\FloatExtensionsUnitTests.cs" />
     <Compile Include="ImageFactoryUnitTests.cs">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Compile>