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Resolve lawrence-laz#2.

Author: lawrence-laz

Extensions.Configuration.Object.v3.ncrunchsolution

@@ -0,0 +1,7 @@
+<SolutionConfiguration>
+  <Settings>
+    <AllowParallelTestExecution>True</AllowParallelTestExecution>
+    <InstrumentationMode>Optimised</InstrumentationMode>
+    <SolutionConfigured>True</SolutionConfigured>
+  </Settings>
+</SolutionConfiguration>

src/Extensions.Configuration.Object/ObjectConfigurationProvider.cs

@@ -43,6 +43,10 @@ private void LoadRecursively(string currentKey, object section)
             {
                 base.Set(currentKey, section.ToString());
             }
+            else if (section is Enum) // Enum.
+            {
+                base.Set(currentKey, Enum.GetName(section.GetType(), section));
+            }
             else if (section is IDictionary dictionarySection) // Dictionary.
             {
                 foreach (DictionaryEntry item in dictionarySection)

test/Extensionsions.Configuration.Object.UnitTests/EnumTest.cs

@@ -0,0 +1,45 @@
+using AutoFixture.Xunit2;
+using FluentAssertions;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+using Xunit;
+
+namespace Extensions.Configuration.Object.UnitTests
+{
+    public class EnumTest
+    {
+        public enum TestEnum
+        {
+            Undefined = 0,
+            Foo,
+            Bar
+        }
+
+        public class TestOptions
+        {
+            public static string Test => "Test";
+
+            public TestEnum[] Property { get; set; }
+        }
+
+        [Theory, AutoData]
+        public void AddObject_WithEnum_ShoulBeSameInOptions(TestOptions expected)
+        {
+            // Arrange
+            var configuration = new ConfigurationBuilder()
+                .AddObject(expected)
+                .Build();
+
+            var serviceProvider = new ServiceCollection()
+                .Configure<TestOptions>(configuration)
+                .BuildServiceProvider();
+
+            // Act
+            var actual = serviceProvider.GetRequiredService<IOptions<TestOptions>>().Value;
+
+            // Assert
+            actual.Should().BeEquivalentTo(expected);
+        }
+    }
+}

test/Extensionsions.Configuration.Object.UnitTests/NullValueTest.cs

@@ -0,0 +1,29 @@
+using FluentAssertions;
+using Microsoft.Extensions.Configuration;
+using Xunit;
+
+namespace Extensions.Configuration.Object.UnitTests
+{
+    public class NullValueTest
+    {
+        class TestOptions
+        {
+            public object Actual { get; set; }
+        }
+
+        [Fact]
+        public void AddObject_WithFieldNullValue_ShouldReturnNull()
+        {
+            // Arrange
+            var configuration = new ConfigurationBuilder()
+                .AddObject(new TestOptions { Actual = null })
+                .Build();
+
+            // Act
+            var actual = configuration["Actual"];
+
+            // Assert
+            actual.Should().BeNull();
+        }
+    }
+}

test/Extensionsions.Configuration.Object.UnitTests/UnexpectedTest.cs

@@ -15,5 +15,23 @@ public void AddObject_WithNull_ShouldThrow()
             sut.Invoking(x => x.AddObject(null))
                 .Should().ThrowExactly<ArgumentNullException>();
         }
+
+        [Fact]
+        public void AddObject_OnNullConfigurationBuilder_ShouldThrow()
+        {
+            ConfigurationBuilder sut = null;
+
+            sut.Invoking(x => x.AddObject(default))
+                .Should().ThrowExactly<ArgumentNullException>();
+        }
+
+        [Fact]
+        public void Build_WithConfigurationObjectNotSet_ShouldThrow()
+        {
+            var sut = new ObjectConfigurationSource();
+
+            sut.Invoking(x => x.Build(default))
+                .Should().ThrowExactly<ArgumentNullException>();
+        }
     }
 }

test/Extensionsions.Configuration.Object.UnitTests/UnitTests.csproj

@@ -10,7 +10,9 @@
   <ItemGroup>
     <PackageReference Include="AutoFixture.Xunit2" Version="4.14.0" />
     <PackageReference Include="FluentAssertions" Version="5.10.3" />
-    <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.8" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.9" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.9" />
+    <PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="3.1.9" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">