public void CPISubstringOutsideBMP()
{
CodePointIndexedString cpi = new CodePointIndexedString("𒆠ab");
Assert.AreEqual("𒆠", cpi.Substring(0, 1));
Assert.AreEqual("𒆠a", cpi.Substring(0, 2));
Assert.AreEqual("𒆠ab", cpi.Substring(0, 3));
Assert.AreEqual("ab", cpi.Substring(1, 2));
Assert.AreEqual("b", cpi.Substring(2, 1));
}
public void CPISubstringBMP()
{
CodePointIndexedString cpi = new CodePointIndexedString("abc");
Assert.AreEqual("a", cpi.Substring(0, 1));
Assert.AreEqual("ab", cpi.Substring(0, 2));
Assert.AreEqual("abc", cpi.Substring(0, 3));
Assert.AreEqual("bc", cpi.Substring(1, 2));
Assert.AreEqual("c", cpi.Substring(2, 1));
}
public void CPIMixed()
{
CodePointIndexedString cpi = new CodePointIndexedString("𒆠ab𒆡c");
Assert.AreEqual(5, cpi.Length);
Assert.AreEqual("𒆠", cpi.AtIndex(0));
Assert.AreEqual("a", cpi.AtIndex(1));
Assert.AreEqual("b", cpi.AtIndex(2));
Assert.AreEqual("𒆡", cpi.AtIndex(3));
Assert.AreEqual("c", cpi.AtIndex(4));
}
public void CPIOutsideBMP()
{
CodePointIndexedString cpi = new CodePointIndexedString("𒆠𒆡");
Assert.AreEqual(2, cpi.Length);
}
public void CPIInsideBMP()
{
CodePointIndexedString cpi = new CodePointIndexedString("abc");
Assert.AreEqual(3, cpi.Length);
}
