Update canonical data to latest version

exercises/anagram/AnagramTest.cs

@@ -1,4 +1,4 @@
-// This file was auto-generated based on version 1.4.1 of the canonical data.
+// This file was auto-generated based on version 1.5.0 of the canonical data.
 
 using Xunit;
 
@@ -47,6 +47,15 @@ public void Detects_three_anagrams()
         Assert.Equal(expected, sut.FindAnagrams(candidates));
     }
 
+    [Fact(Skip = "Remove to run test")]
+    public void Detects_multiple_anagrams_with_different_case()
+    {
+        var candidates = new[] { "Eons", "ONES" };
+        var sut = new Anagram("nose");
+        var expected = new[] { "Eons", "ONES" };
+        Assert.Equal(expected, sut.FindAnagrams(candidates));
+    }
+
     [Fact(Skip = "Remove to run test")]
     public void Does_not_detect_non_anagrams_with_identical_checksum()
     {
@@ -105,4 +114,13 @@ public void Words_are_not_anagrams_of_themselves_case_insensitive_()
         var sut = new Anagram("BANANA");
         Assert.Empty(sut.FindAnagrams(candidates));
     }
+
+    [Fact(Skip = "Remove to run test")]
+    public void Words_other_than_themselves_can_be_anagrams()
+    {
+        var candidates = new[] { "Listen", "Silent", "LISTEN" };
+        var sut = new Anagram("LISTEN");
+        var expected = new[] { "Silent" };
+        Assert.Equal(expected, sut.FindAnagrams(candidates));
+    }
 }

exercises/circular-buffer/CircularBufferTest.cs

@@ -1,4 +1,4 @@
-// This file was auto-generated based on version 1.1.0 of the canonical data.
+// This file was auto-generated based on version 1.2.0 of the canonical data.
 
 using System;
 using Xunit;
@@ -132,4 +132,18 @@ public void Overwrite_replaces_the_oldest_item_remaining_in_buffer_following_a_r
         Assert.Equal(4, buffer.Read());
         Assert.Equal(5, buffer.Read());
     }
+
+    [Fact(Skip = "Remove to run test")]
+    public void Initial_clear_does_not_affect_wrapping_around()
+    {
+        var buffer = new CircularBuffer<int>(capacity: 2);
+        buffer.Clear();
+        buffer.Write(1);
+        buffer.Write(2);
+        buffer.Overwrite(3);
+        buffer.Overwrite(4);
+        Assert.Equal(3, buffer.Read());
+        Assert.Equal(4, buffer.Read());
+        Assert.Throws<InvalidOperationException>(() => buffer.Read());
+    }
 }