public async Task CheckFailsWhenSourceCurrencyIsInvalid()
{
// Arrange
response.StatusCode = HttpStatusCode.BadRequest;
response.Content = new StringContent(@"{ ""error"": ""Base 'XXX' is not supported.""}");
requestData.Price = 1;
requestData.SourceCurrency = "XXX";
requestData.TargetCurrency = "USD";
var httpClient = new HttpClient(handlerMock.Object);
factoryMock.Setup(_ => _.CreateClient(It.IsAny <string>()))
.Returns(httpClient).Verifiable();
// Act
var controller = new GetCurrencyConversionDataController(factoryMock.Object);
var getDataController = await controller.GetPrice(requestData);
var expectedUri = new Uri("https://api.exchangeratesapi.io/latest?base=XXX&symbols=USD");
//Assert
Assert.NotNull(getDataController);
Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
handlerMock.Protected().Verify(
"SendAsync",
Times.Exactly(1),
ItExpr.Is <HttpRequestMessage>(req => req.Method == HttpMethod.Get && req.RequestUri == expectedUri),
ItExpr.IsAny <CancellationToken>());
}
public async Task CheckCorrectDataIsRetrievedSuccessfullyFromAPI()
{
// Arrange
response.StatusCode = HttpStatusCode.OK;
response.Content = new StringContent(@"{ ""rates"": {""USD"" : 1.3710144928 },""base"": ""GBP"",""date"": ""2021 - 03 - 25""}");
requestData.Price = 1;
requestData.SourceCurrency = "GBP";
requestData.TargetCurrency = "USD";
var httpClient = new HttpClient(handlerMock.Object);
factoryMock.Setup(_ => _.CreateClient(It.IsAny <string>()))
.Returns(httpClient).Verifiable();
// Act
var controller = new GetCurrencyConversionDataController(factoryMock.Object);
var getDataController = await controller.GetPrice(requestData);
var expectedUri = new Uri("https://api.exchangeratesapi.io/latest?base=GBP&symbols=USD");
//Assert
Assert.NotNull(getDataController);
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
handlerMock.Protected().Verify(
"SendAsync",
Times.Exactly(1),
ItExpr.Is <HttpRequestMessage>(req => req.Method == HttpMethod.Get && req.RequestUri == expectedUri),
ItExpr.IsAny <CancellationToken>());
}
public void CheckThrowsExceptionWhenSourceAndTargetCurrenciesAreEqual()
{
// Act
var ex = Assert.Throws <ArgumentException>(() => GetCurrencyConversionDataController.ValidateInput("GBP", "GBP"));
//Assert
Assert.Equal("Source and Target Currencies must be different.", ex.Message);
}
public void CheckThrowsExceptionWhenSourceOrTargetIsNull(string source, string target)
{
// Act
var ex = Assert.Throws <ArgumentNullException>(() => GetCurrencyConversionDataController.ValidateInput(source, target));
//Assert
Assert.Equal("Value cannot be null. (Parameter 'Input Currencies cannot be Null.')", ex.Message);
}