using System;

using System.Collections.Generic;

using System.IO;

using System.Net;

using System.Threading.Tasks;

using Amazon.S3;

using Amazon.S3.Model;

using Moq;

using Xunit;

​

namespace YourNamespace.Tests

{

    public class S3PullRequestStoreTests

    {

        private readonly Mock<IAmazonS3> _amazonS3ClientMock;

        private readonly S3PullRequestStore _s3PullRequestStore;

​

        public S3PullRequestStoreTests()

        {

            _amazonS3ClientMock = new Mock<IAmazonS3>();

            _s3PullRequestStore = new S3PullRequestStore(_amazonS3ClientMock.Object);

        }

​

        [Fact]

        public async Task GetPullRequestesToSkipAsync_ShouldReturnList_WhenGetObjectSucceeds()

        {

            // Arrange

            var bucketName = "bucket-name";

            var environment = "test";

            var pullRequestFileName = $"{environment}/pullRequestesToSkip";

            var text = "[\"PR1\", \"PR2\", \"PR3\"]";

            var getObjectResponse = new GetObjectResponse

            {

                HttpStatusCode = HttpStatusCode.OK,

                ResponseStream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(text))

            };

            _s3PullRequestStore.GetType()

                .GetField("_bucketName", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)

                .SetValue(_s3PullRequestStore, bucketName);

            _s3PullRequestStore.GetType()

                .GetField("_environment", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)

                .SetValue(_s3PullRequestStore, environment);

            _amazonS3ClientMock.Setup(client => client.GetObjectAsync(It.IsAny<GetObjectRequest>()))

                .ReturnsAsync(getObjectResponse);

​

            // Act

            var result = await _s3PullRequestStore.GetPullRequestesToSkipAsync();

​

            // Assert

            Assert.Equal(new List<string> { "PR1", "PR2", "PR3" }, result);

            _amazonS3ClientMock.Verify(client => client.GetObjectAsync(It.Is<GetObjectRequest>(request => request.BucketName == bucketName && request.Key == pullRequestFileName)), Times.Once);

        }

​

        [Fact]

        public void GetPullRequestesToSkip_ShouldReturnList_WhenGetObjectSucceeds()

        {

            // Arrange

            var pullRequests = new List<string> { "PR1", "PR2", "PR3" };

            _amazonS3ClientMock.Setup(client => client.GetObjectAsync(It.IsAny<GetObjectRequest>()))

                .ReturnsAsync(new GetObjectResponse { HttpStatusCode = HttpStatusCode.OK, ResponseStream = new MemoryStream() });

            _s3PullRequestStore.GetType()

                .GetMethod("GetPullRequestesToSkipAsync", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)

                .SetupImplementation((Func<Task<List<string>>>)(() => Task.FromResult(pullRequests)));

​

            // Act

            var result = _s3PullRequestStore.GetPullRequestesToSkip();

​

            // Assert

            Assert.Equal(pullRequests, result);

            _amazonS3ClientMock.Verify(client => client.GetObjectAsync(It.IsAny<GetObjectRequest>()), Times.Never);

        }

​

        [Fact]

        public async Task SavePullRequestesToSkip_ShouldReturnTrue_WhenPutObjectSucceeds()

        {

            // Arrange

            var bucketName = "bucket-name";

            var environment = "test";

            var pullRequestFileName = $"{environment}/pullRequestesToSkip";

            var pullRequestNumbers = new List<string> { "PR1", "PR2", "PR3" };

            var putObjectResponse = new PutObjectResponse { HttpStatusCode = HttpStatusCode.OK };

            _s3PullRequestStore.GetType()

                .GetField("_bucketName", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)

                .SetValue(_s3PullRequestStore, bucketName);

            _amazonS3ClientMock.Setup(client => client.PutObjectAsync(It.IsAny<PutObjectRequest>()))

                .ReturnsAsync(putObjectResponse);

​

            // Act

            var result = await _s3PullRequestStore.SavePullRequestesToSkip(pullRequestNumbers);

​

            // Assert

            Assert.True(result);

            _amazonS3ClientMock.Verify(client => client.PutObjectAsync(It.Is<PutObjectRequest>(request => request.BucketName == bucketName && request.Key == pullRequestFileName)), Times.Once);

        }

​

        // Add more test methods for other public and private methods in the S3PullRequestStore class

    }

}

​