public void HasIpAddressChanged_ShouldThrowException_WhenHttpRequestFailsToGetData(string oldIpAddress, string newIpAddress)
{
// Arrange
// IHttpClientFactory
var httpClientFactory = new Mock <IHttpClientFactory>();
var mockHttpMessageHandler = new Mock <HttpMessageHandler>();
mockHttpMessageHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.ReturnsAsync(new HttpResponseMessage
{
StatusCode = HttpStatusCode.OK,
Content = new StringContent(newIpAddress),
})
.Verifiable();
var client = new HttpClient(mockHttpMessageHandler.Object);
var expectedUrl = new Uri(IpAddressChangeDetector.IpifyUri);
client.BaseAddress = expectedUrl;
httpClientFactory.Setup(_ => _.CreateClient(It.IsAny <string>())).Returns(client);
// FileSystem
var mockFileSystem = new MockFileSystem();
var mockInputFile = new MockFileData(oldIpAddress);
mockFileSystem.AddFile(IpAddressChangeDetector.PreviousIpAddressFile, mockInputFile);
// Act and Assert
var sut = new IpAddressChangeDetector(httpClientFactory.Object, mockFileSystem, Mock.Of <ILogger>());
Assert.That(async() => { await sut.HasIpAddressChanged(); }, Throws.Exception.TypeOf <InvalidDataException>());
}
public async Task HasIpAddressChanged_ShouldDetectIsChanged(string oldIpAddress, string newIpAddress)
{
// Arrange
// IHttpClientFactory
var httpClientFactory = new Mock <IHttpClientFactory>();
var mockHttpMessageHandler = new Mock <HttpMessageHandler>();
mockHttpMessageHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.ReturnsAsync(new HttpResponseMessage
{
StatusCode = HttpStatusCode.OK,
Content = new StringContent(newIpAddress),
})
.Verifiable();
var client = new HttpClient(mockHttpMessageHandler.Object);
var expectedUrl = new Uri(IpAddressChangeDetector.IpifyUri);
client.BaseAddress = expectedUrl;
httpClientFactory.Setup(_ => _.CreateClient(It.IsAny <string>())).Returns(client);
// FileSystem
var mockFileSystem = new MockFileSystem();
var mockInputFile = new MockFileData(oldIpAddress);
mockFileSystem.AddFile(IpAddressChangeDetector.PreviousIpAddressFile, mockInputFile);
// Act
var sut = new IpAddressChangeDetector(httpClientFactory.Object, mockFileSystem, Mock.Of <ILogger>());
var result = await sut.HasIpAddressChanged();
// Assert
Assert.AreEqual(string.Compare(oldIpAddress, newIpAddress) != 0, result.IpAddressHasChanged);
Assert.AreEqual(oldIpAddress, result.OldIpAddress);
Assert.AreEqual(newIpAddress, result.NewIpAddress);
}
public void HasIpAddressChanged_ShouldThrowException_WhenHttpRequestThrowException()
{
// Arrange
// IHttpClientFactory
var httpClientFactory = new Mock <IHttpClientFactory>();
var client = new HttpClient(new ThrowingHandler());
var expectedUrl = new Uri(IpAddressChangeDetector.IpifyUri);
client.BaseAddress = expectedUrl;
httpClientFactory.Setup(_ => _.CreateClient(It.IsAny <string>())).Returns(client);
// FileSystem
var mockFileSystem = new MockFileSystem();
var mockInputFile = new MockFileData("");
mockFileSystem.AddFile(IpAddressChangeDetector.PreviousIpAddressFile, mockInputFile);
// Act and Assert
var sut = new IpAddressChangeDetector(httpClientFactory.Object, mockFileSystem, Mock.Of <ILogger>());
Assert.That(async() => { await sut.HasIpAddressChanged(); }, Throws.Exception.TypeOf <Exception>());
}