ImageHash/tests/ImageHash.Test/ImageHashExtensionsTest.cs at develop · coenm/ImageHash · GitHub

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namespace CoenM.ImageHash.Test

{

using System;

using System.Diagnostics.CodeAnalysis;

using System.IO;

using System.Threading.Tasks;

using CoenM.ImageHash.Test.Data;

using EasyTestFileXunit;

using FakeItEasy;

using FluentAssertions;

using SixLabors.ImageSharp;

using SixLabors.ImageSharp.PixelFormats;

using Xunit;

using Sut = CoenM.ImageHash.ImageHashExtensions;

[SuppressMessage("ReSharper", "InvokeAsExtensionMethod", Justification = "Testing static extension method class")]

[UsesEasyTestFile]

public class ImageHashExtensionsTest

{

private readonly IImageHash _hashAlgorithm;

public ImageHashExtensionsTest()

{

_hashAlgorithm = A.Fake<IImageHash>();

}

[Fact]

public async Task HashStreamShouldReadStreamAsImageAndPassDataToHashAlgorithmTest()

{

// arrange

A.CallTo(() => _hashAlgorithm.Hash(A<Image<Rgba32>>._)).Returns(0UL);

using Stream stream = await TestData.AlysonHannigan200x200_0.AsStream();

// act

var result = Sut.Hash(_hashAlgorithm, stream);

// assert

A.CallTo(() => _hashAlgorithm.Hash(A<Image<Rgba32>>._)).MustHaveHappenedOnceExactly();

result.Should().Be(0UL);

}

[Theory]

[InlineData(true, false)]

[InlineData(false, true)]

[InlineData(true, true)]

public void NullArgumentShouldThrowArgumentNullExceptionTest(bool hashImplIsNull, bool streamIsNull)

{

// arrange

IImageHash imageHashImplementation = hashImplIsNull ? null : A.Dummy<IImageHash>();

Stream stream = streamIsNull ? null : new MemoryStream();

// act

Action act = () => Sut.Hash(imageHashImplementation!, stream!);

// assert

act.Should().Throw<ArgumentNullException>();

}

ImageHash/tests/ImageHash.Test/ImageHashExtensionsTest.cs at develop · coenm/ImageHash · GitHub

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