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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using Xunit;
using Xunit.Extensions;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Web.Helpers.AntiXsrf.Test
{
public class BinaryBlobTest
{
[Fact]
public void Ctor_BitLength()
{
// Act
BinaryBlob blob = new BinaryBlob(bitLength: 64);
byte[] data = blob.GetData();
// Assert
Assert.Equal(64, blob.BitLength);
Assert.Equal(64 / 8, data.Length);
Assert.NotEqual(new byte[64 / 8], data); // should not be a zero-filled array
}
[Theory]
[InlineData(24)]
[InlineData(33)]
public void Ctor_BitLength_Bad(int bitLength)
{
// Act & assert
var ex = Assert.Throws<ArgumentOutOfRangeException>(() => new BinaryBlob(bitLength));
Assert.Equal("bitLength", ex.ParamName);
}
[Fact]
public void Ctor_BitLength_ProducesDifferentValues()
{
// Act
BinaryBlob blobA = new BinaryBlob(bitLength: 64);
BinaryBlob blobB = new BinaryBlob(bitLength: 64);
// Assert
Assert.NotEqual(blobA.GetData(), blobB.GetData());
}
[Fact]
public void Ctor_Data()
{
// Arrange
byte[] expectedData = new byte[] { 0x01, 0x02, 0x03, 0x04 };
// Act
BinaryBlob blob = new BinaryBlob(32, expectedData);
// Assert
Assert.Equal(32, blob.BitLength);
Assert.Equal(expectedData, blob.GetData());
}
[Theory]
[InlineData((object[])null)]
[InlineData(new byte[] { 0x01, 0x02, 0x03 })]
public void Ctor_Data_Bad(byte[] data)
{
// Act & assert
var ex = Assert.Throws<ArgumentOutOfRangeException>(() => new BinaryBlob(32, data));
Assert.Equal("data", ex.ParamName);
}
[Fact]
public void Equals_DifferentData_ReturnsFalse()
{
// Arrange
object blobA = new BinaryBlob(32, new byte[] { 0x01, 0x02, 0x03, 0x04 });
object blobB = new BinaryBlob(32, new byte[] { 0x04, 0x03, 0x02, 0x01 });
// Act & assert
Assert.NotEqual(blobA, blobB);
}
[Fact]
public void Equals_NotABlob_ReturnsFalse()
{
// Arrange
object blobA = new BinaryBlob(32);
object blobB = "hello";
// Act & assert
Assert.NotEqual(blobA, blobB);
}
[Fact]
public void Equals_Null_ReturnsFalse()
{
// Arrange
object blobA = new BinaryBlob(32);
object blobB = null;
// Act & assert
Assert.NotEqual(blobA, blobB);
}
[Fact]
public void Equals_SameData_ReturnsTrue()
{
// Arrange
object blobA = new BinaryBlob(32, new byte[] { 0x01, 0x02, 0x03, 0x04 });
object blobB = new BinaryBlob(32, new byte[] { 0x01, 0x02, 0x03, 0x04 });
// Act & assert
Assert.Equal(blobA, blobB);
}
[Fact]
public void GetHashCodeTest()
{
// Arrange
byte[] blobData = new byte[] { 0x01, 0x02, 0x03, 0x04 };
int expectedHashCode = BitConverter.ToInt32(blobData, 0);
BinaryBlob blob = new BinaryBlob(32, blobData);
// Act
int actualHashCode = blob.GetHashCode();
// Assert
Assert.Equal(expectedHashCode, actualHashCode);
}
}
}
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