public void CurrentCharacter_ReturnsNullCharacterOfData_FaterMoveToEndIsCalled()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
const char expectedCharacter = CharacterBuffer.NullCharacter;
// ACT
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
var actualCharacter = characterBuffer.CurrentCharacter;
// ASSERT
Assert.AreEqual(expectedCharacter, actualCharacter);
}
public void CurrentIndexPosition_ReturnsLastPosition_WhenClassConstructedWithDataAndMoveToEndCalled()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
int expectedIndexPosition = data.Length;
// ACT
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
var actualIndexPosition = characterBuffer.CurrentIndex;
// ASSERT
Assert.AreEqual(expectedIndexPosition, actualIndexPosition);
}
public void CurrentIndexPosition_ReturnsZero_WhenClassConstructedWithDataAndMoveToStartCalledAfterMoveToEnd()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
const int expectedCurrentPosition = 0;
// ACT
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
characterBuffer.MoveToStart();
var actualCurrentPosition = characterBuffer.CurrentIndex;
// ASSERT
Assert.AreEqual(expectedCurrentPosition, actualCurrentPosition);
}
public void PreviousCharacter_ReturnslastCharacter_AfterMoveToEnd()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
char expectedCharacter = data.ToCharArray(data.Length - 1, 1)[0];
// ACT
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
var actualCharacter = characterBuffer.PreviousCharacter;
// ASSERT
Assert.AreEqual(expectedCharacter, actualCharacter);
}
public void NextCharacter_ReturnsNullCharacter_AfterMoveToEndIsCalled()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
var characterBuffer = new CharacterBuffer(data);
const char expectedCharacter = CharacterBuffer.NullCharacter;
// ACT
characterBuffer.MoveToEnd();
var actualCharacter = characterBuffer.NextCharacter;
// ASSERT
Assert.AreEqual(actualCharacter, expectedCharacter);
}
public void MovePrevious_ReturnsTrue_WhenIndexIsNotAtStart()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
// ACT
var result = characterBuffer.MovePrevious();
// ASSERT
Assert.IsTrue(result);
}
public void MoveNext_ReturnsFalse_WhenIndexIsAtEnd()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
var characterBuffer = new CharacterBuffer(data);
characterBuffer.MoveToEnd();
// ACT
var result = characterBuffer.MoveNext();
// ASSERT
Assert.IsFalse(result);
}
public void GetToEnd_ReturnsEmptyString_AfterMoveToEndIsCalled()
{
// ARRANGE
const string data = Fakes.Literal.BasicLiteral;
var characterBuffer = new CharacterBuffer(data);
string expectedCharachter = string.Empty;
// ACT
characterBuffer.MoveToEnd();
string actualData = characterBuffer.GetToEnd();
// ASSERT
Assert.AreEqual(actualData, expectedCharachter);
}