public static void WhenProvidedNoSecretThrowsArgumentNullException()
{
ISecretGenerator generator = new DefaultSecretGenerator();
Assert.Throws <ArgumentNullException>(() => generator.GenerateSecret("", 5));
Assert.Throws <ArgumentNullException>(() => generator.GenerateSecret(null, 5));
}
public static void WhenProvidedAMessageLengthOfLessThanOneThrowArgumentOutOfBoundsException()
{
ISecretGenerator generator = new DefaultSecretGenerator();
Assert.Throws <ArgumentOutOfRangeException>(() => generator.GenerateSecret("mysecret", 0));
Assert.Throws <ArgumentOutOfRangeException>(() => generator.GenerateSecret("mysecret", -5));
}
public static void WhenProvidedASecretTheSameLengthAsTheMessageLengthReturnIt()
{
ISecretGenerator generator = new DefaultSecretGenerator();
var expected = "testy";
var actual = generator.GenerateSecret("testy", 5);
Assert.Equal(expected, actual);
}
public static void WhenProvidedASecretLongerThanTheMessageLengthReturnATruncatedSecret()
{
ISecretGenerator generator = new DefaultSecretGenerator();
var input = "thisismysuperlongsecret";
var expected = "thisismy";
var actual = generator.GenerateSecret(input, 8);
Assert.Equal(expected, actual);
}
public static void WhenProvidedASecretShorterThanTheMessageLengthReturnARepeatedSecret()
{
ISecretGenerator generator = new DefaultSecretGenerator();
var secret = "uzis";
var message = "meetmebythetree";
var expected = "uzisuzisuzisuzi";
var actual = generator.GenerateSecret(secret, message.Length);
Assert.Equal(expected, actual);
}
