public void EncryptAndDecryptEmptyString()
{
var plainText = string.Empty;
var key = L64.GenerateKey();
var cipherText = L64.Encrypt(plainText, key);
var decrypted = L64.Decrypt(cipherText, key);
Assert.That(plainText, Is.EqualTo(cipherText));
Assert.That(plainText, Is.EqualTo(decrypted));
}
public void RejectInvalidKeys()
{
var invalidKeys = new string[] { string.Empty, " ", "abcde" };
foreach (var invalidKey in invalidKeys)
{
var ex = Assert.Throws <ArgumentException>(() => L64.Encrypt(string.Empty, invalidKey));
Assert.That(ex.Message, Is.EqualTo($"Invalid key: '{invalidKey}'. Expected a shuffled version of '+/0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'"));
}
Assert.That(() => L64.Encrypt("pasta", null), Throws.ArgumentNullException.With.Property("ParamName").EqualTo("key"));
}
public void FailToDecryptWithWrongKey()
{
var plainText = "Foo Bar";
var key = L64.GenerateKey();
var invalidKey = L64.GenerateKey();
Assert.That(key, Is.Not.EqualTo(invalidKey));
var cipherText = L64.Encrypt(plainText, key);
var decrypted = L64.Decrypt(cipherText, invalidKey).Trim();
Assert.That(plainText, Is.Not.EqualTo(decrypted));
}
public void EncryptAndDecryptSimpleString()
{
var plainText = "Hello, World!";
var key = L64.GenerateKey();
var cipherText = L64.Encrypt(plainText, key);
var decrypted = L64.Decrypt(cipherText, key).Trim();
Assert.That(plainText, Is.Not.EqualTo(cipherText));
Assert.That(plainText, Is.Not.SameAs(cipherText));
Assert.That(plainText, Is.EqualTo(decrypted));
Assert.That(plainText, Is.Not.SameAs(decrypted));
Assert.That(decrypted, Is.Not.EqualTo(cipherText));
Assert.That(decrypted, Is.Not.SameAs(cipherText));
}
public void RejectInvalidTexts()
{
Assert.That(() => L64.Encrypt(null, null), Throws.ArgumentNullException.With.Property("ParamName").EqualTo("plaintext"));
Assert.That(() => L64.Decrypt(null, null), Throws.ArgumentNullException.With.Property("ParamName").EqualTo("ciphertext"));
}
