public void BreakIteratorThatIsEmpty()
{
var locale = new Locale("de-DE");
string text = string.Empty;
using (var bi = BreakIterator.CreateCharacterInstance(locale))
{
bi.SetText(text);
Assert.AreEqual(locale, bi.Locale);
Assert.AreEqual(text, bi.Text);
Assert.AreEqual(0, bi.Boundaries.Length);
Assert.AreEqual(0, bi.Current);
Assert.AreEqual(BreakIterator.DONE, bi.MoveNext());
Assert.AreEqual(0, bi.MoveFirst());
Assert.AreEqual(0, bi.MoveLast());
Assert.AreEqual(BreakIterator.DONE, bi.MovePrevious());
// Default value is 0 when there was no rule applied.
Assert.AreEqual(0, bi.GetRuleStatus());
// When iterator is at DONE, it returns the default rule status vector.
CollectionAssert.AreEqual(new[] { 0 }, bi.GetRuleStatusVector());
}
}
public void BreakIteratorThatIsNull()
{
var locale = new Locale("de-DE");
using (var bi = BreakIterator.CreateCharacterInstance(locale))
{
Assert.Throws <ArgumentNullException>(() =>
{
bi.SetText(null);
});
}
}
public void CanSetNewText_Null()
{
var locale = new Locale("en-US");
var text = "Good-day, kind sir ! Can I have a glass of water? I am very parched.";
string secondText = null;
using (var bi = BreakIterator.CreateCharacterInstance(locale))
{
bi.SetText(text);
Assert.Throws <ArgumentNullException>(() => bi.SetText(secondText));
}
}
public void CreateChracterInstanceTest()
{
var locale = new Locale("de-DE");
var text = "Good-bye, dear!";
var expected = new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
using (var bi = BreakIterator.CreateCharacterInstance(locale))
{
bi.SetText(text);
Assert.AreEqual(locale, bi.Locale);
Assert.AreEqual(text, bi.Text);
CollectionAssert.AreEqual(expected, bi.Boundaries);
// Verify each boundary and rule status.
for (int i = 0; i < expected.Length; i++)
{
int current = bi.Current;
int status = bi.GetRuleStatus();
Assert.AreEqual(expected[i], current);
Assert.AreEqual(0, status);
int moveNext = bi.MoveNext();
int next = i + 1;
if (next < expected.Length)
{
Assert.AreEqual(expected[next], moveNext);
}
else
{
// Verify that the BreakIterator is exhausted because we've
// moved past every item.
Assert.AreEqual(BreakIterator.DONE, moveNext);
}
}
// Verify that the BreakIterator is exhausted because we've
// moved past every item, so current should be the last offset.
int lastIndex = expected.Length - 1;
Assert.AreEqual(expected[lastIndex], bi.Current);
}
}
