public void ReturnEmptyCharWhenNoMoreSource()
{
var source = new SourceProgram(string.Empty);
char next = source.Inspect();
Assert.AreEqual('\0', next);
}
public void ReadCurrentCharShouldReturnNextCharAndAdvance()
{
var source = new SourceProgram("12");
var next = source.ReadCurrentCharacter();
Assert.AreEqual('1', next);
next = source.ReadCurrentCharacter();
Assert.AreEqual('2', next);
}
public void AdvanceShouldRemoveCharacter()
{
var source = new SourceProgram("Begin");
for (int i = 0; i < 5; i++)
{
source.Advance();
}
Assert.AreEqual('\0',source.Inspect());
}
public void AllowCreationWithEmptySource()
{
var source = new SourceProgram(string.Empty);
Assert.IsNotNull(source);
}
public void AdvanceOnEmptyShouldFail()
{
var source = new SourceProgram(string.Empty);
Assert.Throws<InvalidOperationException>(() => source.Advance());
}
/// <summary>
/// Initializes a new instance of the <see cref="MicroScanner"/> class.
/// </summary>
/// <param name="program">The program.</param>
public MicroScanner(string program)
{
this.program = program;
this.sourceProgram = new SourceProgram(this.program);
}
/// <summary>
/// Initializes a new instance of the <see cref="MicroScanner"/> class.
/// </summary>
/// <param name="program">The program.</param>
public MicroScanner(string program)
{
this.program = program;
this.sourceProgram = new SourceProgram(this.program);
}