Move text-based char extensions to Text namespace (#7)

X10D.Tests/src/Core/CharTests.cs

@@ -1,23 +0,0 @@
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-
-namespace X10D.Tests.Core;
-
-/// <summary>
-///     Tests for <see cref="CharExtensions" />.
-/// </summary>
-[TestClass]
-public class CharTests
-{
-    [TestMethod]
-    public void Repeat()
-    {
-        const char character = 'a';
-        const int repeatCount = 10;
-
-        const string repeated = "aaaaaaaaaa";
-        string result = character.Repeat(repeatCount);
-
-        Assert.AreEqual(repeated, result);
-        Assert.ThrowsException<ArgumentOutOfRangeException>(() => character.Repeat(-1));
-    }
-}

X10D.Tests/src/Text/CharTests.cs

@@ -0,0 +1,37 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using X10D.Text;
+
+namespace X10D.Tests.Text;
+
+[TestClass]
+public class CharTests
+{
+    [TestMethod]
+    public void RepeatShouldBeCorrect()
+    {
+        const string expected = "aaaaaaaaaa";
+        string actual = 'a'.Repeat(10);
+
+        Assert.AreEqual(expected, actual);
+    }
+
+    [TestMethod]
+    public void RepeatOneCountShouldBeLength1String()
+    {
+        string repeated = 'a'.Repeat(1);
+        Assert.AreEqual(1, repeated.Length);
+        Assert.AreEqual("a", repeated);
+    }
+
+    [TestMethod]
+    public void RepeatZeroCountShouldBeEmpty()
+    {
+        Assert.AreEqual(string.Empty, 'a'.Repeat(0));
+    }
+
+    [TestMethod]
+    public void RepeatNegativeCountShouldThrow()
+    {
+        Assert.ThrowsException<ArgumentOutOfRangeException>(() => 'a'.Repeat(-1));
+    }
+}

X10D/src/Text/CharExtensions.cs

@@ -1,4 +1,4 @@
-namespace X10D;
+namespace X10D.Text;
 
 /// <summary>
 ///     Extension methods for <see cref="char" />.