public void CalculateBullsAndCows_ifGuessLengthIsSmallerThanNUMBER_OF_DIGITS_ShouldReturnFalse()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 1, 1, 1, 1 };
string guess = GetRandomNumberAsString(BullsAndCows.NUMBER_OF_DIGITS - 1);
// Act
bool isValidGuess = game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.IsFalse(isValidGuess);
}
public void CalculateBullsAndCows_ifGuessLengthEqualsToNUMBER_OF_DIGITSAndGuessNumberParseSucceed_ShouldReturnTrue()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 1, 1, 1, 1 };
string guess = GetRandomNumberAsString(BullsAndCows.NUMBER_OF_DIGITS);
// Act
bool isValidGuess = game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.IsTrue(isValidGuess);
}
public void CalculateBullsAndCows_IfGuessNumberParseFails_ShouldReturnFalse()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 1, 1, 1, 1 };
string[] guesses = { "G123", "1G34", "12G4", "123G" };
for (int i = 0; i < guesses.Length; i++)
{
string guess = guesses[i];
bool isValidGuess = game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
Assert.IsFalse(isValidGuess);
}
}
public void CalculateBullsAndCows_Secret5694Guess5555_1Bull0Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 5, 6, 9, 4 };
string guess = "5555";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.AreEqual(1, bulls);
Assert.AreEqual(0, cows);
}
public void CalculateBullsAndCows_Secret4440Guess1234_0Bull1Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 4, 4, 4, 0 };
string guess = "1234";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.AreEqual(0, bulls);
Assert.AreEqual(1, cows);
}
public void CalculateBullsAndCows_Secret2424Guess4144_1Bull1Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 2, 4, 2, 4 };
string guess = "4144";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.AreEqual(1, bulls);
Assert.AreEqual(1, cows);
}
public void CalculateBullsAndCows_Secret1234Guess5678_0Bull0Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 1, 2, 3, 4 };
string guess = "5678";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.AreEqual(0, bulls);
Assert.AreEqual(0, cows);
}
public void CalculateBullsAndCows_Secret1234Guess1923_1Bull2Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 1, 2, 3, 4 };
string guess = "1923";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.AreEqual(1, bulls);
Assert.AreEqual(2, cows);
}
public void CalculateBullsAndCows_Secret0987Guess0987_ShouldNeverReturn3Bull1Cow()
{
// Arrange
BullsAndCows game = new BullsAndCows();
int bulls = 0;
int cows = 0;
int[] secret = { 0, 9, 8, 7 };
string guess = "0987";
// Act
game.CalculateBullsAndCows(secret, guess, out bulls, out cows);
// Assert
Assert.IsFalse(bulls == 3 && cows == 1);
}