public void TestFilter()
{
string[] filteredWords = { "de", "com" };
string text = "Bolo de chocolate com calda de morango";
TokenAssertions.AssertTokens(text, new WordFilter(filteredWords),
new Token("Bolo", 0),
new Token("chocolate", 8),
new Token("calda", 22),
new Token("morango", 31),
null);
}