From 06ac09b2dad22acf152f3a8bd210be8b4b9e6bc5 Mon Sep 17 00:00:00 2001
From: Anders Bjerner <abjerner@skybrud.dk>
Date: Fri, 24 Mar 2023 20:41:38 +0100
Subject: [PATCH] Introduced new "TextCasingNamingStrategy" class

---
 .../Serialization/TextCasingNamingStrategy.cs | 35 ++++++++++++
 .../Json/Newtonsoft/NamingStrategyTests.cs    | 57 +++++++++++++++++++
 src/UnitTestProject1/UnitTestProject1.csproj  |  1 +
 3 files changed, 93 insertions(+)
 create mode 100644 src/Skybrud.Essentials/Json/Newtonsoft/Serialization/TextCasingNamingStrategy.cs
 create mode 100644 src/UnitTestProject1/Json/Newtonsoft/NamingStrategyTests.cs

diff --git a/src/Skybrud.Essentials/Json/Newtonsoft/Serialization/TextCasingNamingStrategy.cs b/src/Skybrud.Essentials/Json/Newtonsoft/Serialization/TextCasingNamingStrategy.cs
new file mode 100644
index 0000000..7779204
--- /dev/null
+++ b/src/Skybrud.Essentials/Json/Newtonsoft/Serialization/TextCasingNamingStrategy.cs
@@ -0,0 +1,35 @@
+using Newtonsoft.Json.Serialization;
+using Skybrud.Essentials.Strings;
+
+namespace Skybrud.Essentials.Json.Newtonsoft.Serialization {
+
+    /// <summary>
+    /// Custom implementation of <see cref="NamingStrategy"/> for converting property names to <see cref="TextCasing.CamelCase"/>.
+    /// </summary>
+    public class TextCasingNamingStrategy : NamingStrategy {
+
+        /// <summary>
+        /// Gets the casing the be used.
+        /// </summary>
+        public TextCasing Casing { get; }
+
+        /// <summary>
+        /// Initializes a new instance based on the specified <paramref name="casing"/>.
+        /// </summary>
+        /// <param name="casing">The casing the be used.</param>
+        public TextCasingNamingStrategy(TextCasing casing) {
+            Casing = casing;
+        }
+
+        /// <summary>
+        /// Resolves the specified property name.
+        /// </summary>
+        /// <param name="name">The property name to resolve.</param>
+        /// <returns>The resolved property name.</returns>
+        protected override string ResolvePropertyName(string name) {
+            return StringUtils.ToCasing(name, Casing);
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/src/UnitTestProject1/Json/Newtonsoft/NamingStrategyTests.cs b/src/UnitTestProject1/Json/Newtonsoft/NamingStrategyTests.cs
new file mode 100644
index 0000000..5a67d11
--- /dev/null
+++ b/src/UnitTestProject1/Json/Newtonsoft/NamingStrategyTests.cs
@@ -0,0 +1,57 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using Skybrud.Essentials.Json.Newtonsoft.Serialization;
+using Skybrud.Essentials.Strings;
+
+namespace UnitTestProject1.Json.Newtonsoft {
+
+    [TestClass]
+    public class NamingStrategyTests {
+
+        [TestMethod]
+        public void TestCasings() {
+
+            HelloValue value = new HelloValue("");
+
+            var samples = new[] {
+                new { Expected = "helloworld", Casing = TextCasing.LowerCase },
+                new { Expected = "HELLOWORLD", Casing = TextCasing.UpperCase },
+                new { Expected = "helloWorld", Casing = TextCasing.CamelCase },
+                new { Expected = "HelloWorld", Casing = TextCasing.PascalCase },
+                new { Expected = "hello-world", Casing = TextCasing.KebabCase },
+                new { Expected = "Hello-World", Casing = TextCasing.HeaderCase },
+                new { Expected = "HELLO-WORLD", Casing = TextCasing.TrainCase },
+                new { Expected = "hello_world", Casing = TextCasing.SnakeCase },
+                new { Expected = "HELLO_WORLD", Casing = TextCasing.ConstantCase }
+            };
+
+            foreach (var sample in samples) {
+
+                string expected = "{\"" + sample.Expected + "\":\"\"}";
+
+                JsonSerializerSettings settings = new JsonSerializerSettings {
+                    ContractResolver = new DefaultContractResolver { NamingStrategy = new TextCasingNamingStrategy(sample.Casing) }
+                };
+
+                string result = JsonConvert.SerializeObject(value, settings);
+
+                Assert.AreEqual(expected, result, sample.Casing.ToString());
+
+            }
+
+        }
+
+        public class HelloValue {
+
+            public string HelloWorld { get; }
+
+            public HelloValue(string helloWorld) {
+                HelloWorld = helloWorld;
+            }
+
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/src/UnitTestProject1/UnitTestProject1.csproj b/src/UnitTestProject1/UnitTestProject1.csproj
index 484d21d..919222a 100644
--- a/src/UnitTestProject1/UnitTestProject1.csproj
+++ b/src/UnitTestProject1/UnitTestProject1.csproj
@@ -92,6 +92,7 @@
     <Compile Include="Json\Newtonsoft\JObjectTests\UInt64Tests.cs" />
     <Compile Include="Json\Newtonsoft\JObjectTests\UInt32Tests.cs" />
     <Compile Include="Json\Newtonsoft\JObjectTests\UInt16Tests.cs" />
+    <Compile Include="Json\Newtonsoft\NamingStrategyTests.cs" />
     <Compile Include="Maps\DistanceTests.cs" />
     <Compile Include="Locations\LocationTests.cs" />
     <Compile Include="Maps\PointTests.cs" />