public void Random_ZeroLength_Success()
{
// Act
var secret = Secret.Random(0);
// Assert
Assert.Equal(0, secret.Length);
}
public void WriteSecretIntoBuffer_Pointer_NullBuffer_Throws()
{
// Arrange
var secret = Secret.Random(16);
// Act & assert
ExceptionAssert.ThrowsArgumentNull(
testCode: () => secret.WriteSecretIntoBuffer(null, 100),
paramName: "buffer");
}
public void WriteSecretIntoBuffer_ArraySegment_Disposed_Throws()
{
// Arrange
var secret = Secret.Random(16);
secret.Dispose();
// Act & assert
Assert.Throws <ObjectDisposedException>(
testCode: () => secret.WriteSecretIntoBuffer(new ArraySegment <byte>(new byte[16])));
}
public void WriteSecretIntoBuffer_ArraySegment_IncorrectlySizedBuffer_Throws()
{
// Arrange
var secret = Secret.Random(16);
// Act & assert
ExceptionAssert.ThrowsArgument(
testCode: () => secret.WriteSecretIntoBuffer(new ArraySegment <byte>(new byte[100])),
paramName: "buffer",
exceptionMessage: Resources.FormatCommon_BufferIncorrectlySized(100, 16));
}
public void Random_LengthIsMultipleOf16_Success()
{
// Act
var secret = Secret.Random(32);
// Assert
Assert.Equal(32, secret.Length);
Guid *pGuids = stackalloc Guid[2];
secret.WriteSecretIntoBuffer((byte *)pGuids, 32);
Assert.NotEqual(Guid.Empty, pGuids[0]);
Assert.NotEqual(Guid.Empty, pGuids[1]);
Assert.NotEqual(pGuids[0], pGuids[1]);
}
public void WriteSecretIntoBuffer_Pointer_Disposed_Throws()
{
// Arrange
var secret = Secret.Random(16);
secret.Dispose();
// Act & assert
Assert.Throws <ObjectDisposedException>(
testCode: () =>
{
byte *pBuffer = stackalloc byte[16];
secret.WriteSecretIntoBuffer(pBuffer, 16);
});
}
public void WriteSecretIntoBuffer_Pointer_IncorrectlySizedBuffer_Throws()
{
// Arrange
var secret = Secret.Random(16);
// Act & assert
ExceptionAssert.ThrowsArgument(
testCode: () =>
{
byte *pBuffer = stackalloc byte[100];
secret.WriteSecretIntoBuffer(pBuffer, 100);
},
paramName: "bufferLength",
exceptionMessage: Resources.FormatCommon_BufferIncorrectlySized(100, 16));
}
public void Random_LengthIsNotMultipleOf16_Success()
{
// Act
var secret = Secret.Random(31);
// Assert
Assert.Equal(31, secret.Length);
Guid *pGuids = stackalloc Guid[2];
secret.WriteSecretIntoBuffer((byte *)pGuids, 31);
Assert.NotEqual(Guid.Empty, pGuids[0]);
Assert.NotEqual(Guid.Empty, pGuids[1]);
Assert.NotEqual(pGuids[0], pGuids[1]);
Assert.Equal(0, ((byte *)pGuids)[31]); // last byte shouldn't have been overwritten
}