IronRuby.Tests.Tests.MutableString_Append_Char C# (CSharp) Method

        public void MutableString_Append_Char() {
            var e = RubyEncoding.UTF8;

            MutableString x;
            x = MutableString.CreateMutable(e);
            Assert(x.IsEmpty);

            x.Append("αβ");
            Assert(x.GetCharCount() == 2);

            x.Append('γ');
            Assert(x.GetCharCount() == 3);

            x.Append('x', 0);
            Assert(x.GetCharCount() == 3);

            x.Append(new char[] { 'δ', 'f' });
            Assert(x.GetCharCount() == 5);

            x.Append(new char[] { });
            Assert(x.GetCharCount() == 5);

            x.Append(MS("g", e));
            Assert(x.GetCharCount() == 6);

            x.Append(MS("", e));
            Assert(x.GetCharCount() == 6);

            x.Append('h', 8);
            Assert(x.GetCharCount() == 14);

            x.Append("hijκλμν", 1, 3);
            Assert(x.GetCharCount() == 17);

            x.Append(MS("hijκλμν", e), 4, 3);
            Assert(x.GetCharCount() == 20);

            x.Append("zzzz");
            Assert(x.GetCharCount() == 24);

            Assert(x.Equals(MS("αβγδfghhhhhhhhijκλμνzzzz", e)));
        }