public void GetProductsByProductId_ReturnsObjectFromJSONService()
{
// Arrange
const int TestProductId = 5;
var testJson = new NameValueCollection {
{ "test", "test" }
};
const string TestOutputApiResponse = "testresponse";
var expectedResult = new ProductsResponse();
// As per above, set up the mock API service but this time it's just going to return junk test data
// because we aren't testing the API service in this test.
var mockAPIService = new Mock <IAPIService>();
mockAPIService.Setup(a => a.GetData(testJson)).Returns(TestOutputApiResponse).Verifiable();
// Set up the Mock JSONService to return the expectedResult ProductsResponse object no matter what's passed into it
var mockJSONService = new Mock <IJSONService>();
mockJSONService.Setup(j => j.DeserialiseJSON <ProductsResponse>(It.IsAny <string>()))
.Returns(expectedResult);
var dataBroker = new APIDataBroker(mockAPIService.Object, mockJSONService.Object);
// Act
var result = dataBroker.GetProductsByProductId(TestProductId);
// Assert
// Verify that the string we set the Mock JSONService object to return was returned by the method under test,
// and verify that the DeserialiseJSON<ProductsResponse> method was called on the Mock JSONService.
Assert.AreEqual(expectedResult, result);
mockJSONService.Verify(j => j.DeserialiseJSON <ProductsResponse>(It.IsAny <string>()));
}
public void GetProductsByProductId_CallsAPIService()
{
// Arrange
const int TestProductId = 5;
const string TestOutputApiResponse = "testresponse";
var expectedJson = new NameValueCollection
{
{ "action", "getproducts" },
{ "pid", TestProductId.ToString() }
};
// Create the APIService mock and set it up to return the TestOutputApiResponse string when we pass it in the expectedJson,
// which is created to mirror the JSON the APIDataBroker is expected to create.
var mockAPIService = new Mock <IAPIService>();
mockAPIService.Setup(a => a.GetData(expectedJson)).Returns(TestOutputApiResponse).Verifiable();
var mockJSONService = new Mock <IJSONService>(); // In this test we don't care what JSON is returned so no setups for IJSONService.
var dataBroker = new APIDataBroker(mockAPIService.Object, mockJSONService.Object); // Instantiate the class under test
// Act
var result = dataBroker.GetProductsByProductId(TestProductId); // Invoke the method being tested.
// Assert
mockAPIService.Verify(a => a.GetData(expectedJson)); // Verify that APIService.GetData was called with the JSON we expect the APIDataBroker to pass to it.
}
