public void GreaterThan(string text)
{
var sut = new WordReader(text);
NextWord(sut, WordType.GreaterThan);
sut.Read().Should().BeTrue();
sut.Read().Should().BeFalse();
}
public void Empty()
{
var sut = new WordReader("");
sut.Read().Should().BeFalse();
sut.AtEnd.Should().BeTrue();
}
public void Identifiers(string text)
{
var sut = new WordReader(text);
NextWord(sut, WordType.Variable, text.ToLower());
sut.Read().Should().BeFalse();
}
public void EndWith(string text, WordType wordType)
{
var sut = new WordReader(text);
NextWord(sut, wordType);
sut.Read().Should().BeFalse();
}
public void Strings()
{
var sut = new WordReader("'a' 'Alpha' ''");
NextWord(sut, WordType.String, "a");
NextWord(sut, WordType.String, "Alpha");
NextWord(sut, WordType.String, "");
sut.Read().Should().BeFalse();
}
private static void NextWord(WordReader sut, WordType wordType, string word = null)
{
sut.Read().Should().BeTrue();
sut.WordType.Should().Be(wordType);
if (word is not null)
{
sut.Word.Should().Be(word);
}
}
public void IdentifierEqualsIdentifier(string text, string identifier1, string identifier2)
{
var sut = new WordReader(text);
NextWord(sut, WordType.Variable, identifier1);
NextWord(sut, WordType.Equals);
NextWord(sut, WordType.Variable, identifier2);
sut.Read().Should().BeFalse();
}
public void Numbers()
{
var sut = new WordReader("1 57 609 -2 0");
NextWord(sut, WordType.Number, "1");
NextWord(sut, WordType.Number, "57");
NextWord(sut, WordType.Number, "609");
NextWord(sut, WordType.Number, "-2");
NextWord(sut, WordType.Number, "0");
sut.Read().Should().BeFalse();
}
public void KeyWords()
{
var sut = new WordReader("and,OR Not in Between IS Null");
NextWord(sut, WordType.And);
NextWord(sut, WordType.Comma);
NextWord(sut, WordType.Or);
NextWord(sut, WordType.Not);
NextWord(sut, WordType.In);
NextWord(sut, WordType.Between);
NextWord(sut, WordType.Is);
NextWord(sut, WordType.Null);
sut.Read().Should().BeFalse();
}
public void Operators()
{
var sut = new WordReader("= != < > <= >= <> ( )");
NextWord(sut, WordType.Equals);
NextWord(sut, WordType.NotEqualsTo);
NextWord(sut, WordType.LowerThan);
NextWord(sut, WordType.GreaterThan);
NextWord(sut, WordType.EqualOrLowerThan);
NextWord(sut, WordType.EqualOrGreaterThan);
NextWord(sut, WordType.NotEqualsTo);
NextWord(sut, WordType.OpenParenthesys);
NextWord(sut, WordType.CloseParenthesys);
sut.Read().Should().BeFalse();
}
