public async Task Get_NegativeOrZeroCountRequested_Returns400HttpError()
{
TopAgentsController controller = new TopAgentsController(null, null);
IActionResult actionResult = await controller.Get(0);
Assert.IsType <BadRequestObjectResult>(actionResult);
}
public async Task Get_PositiveCountRequested_TopAgentsAreRequestedFromTheProvider()
{
int requestedCount = 5;
Mock <IFilterParameterParser> filterParameterParser = new Mock <IFilterParameterParser>();
Mock <ITopAgentProvider> topAgentProvider = new Mock <ITopAgentProvider>();
TopAgentsController controller = new TopAgentsController(topAgentProvider.Object, filterParameterParser.Object);
IActionResult actionResult = await controller.Get(requestedCount);
topAgentProvider.Verify(p => p.GetTopAgents(requestedCount, It.IsAny <IEnumerable <string> >()));
}
public async Task Get_AnEmptyListListOfTopAgentsIsObtained_ReturnsEnEmptyList()
{
Mock <IFilterParameterParser> filterParameterParser = new Mock <IFilterParameterParser>();
Mock <ITopAgentProvider> topAgentProvider = new Mock <ITopAgentProvider>();
topAgentProvider
.Setup(p => p.GetTopAgents(It.IsAny <int>(), It.IsAny <IEnumerable <string> >()))
.Returns(Task.FromResult(Enumerable.Empty <TopAgent>()));
TopAgentsController controller = new TopAgentsController(topAgentProvider.Object, filterParameterParser.Object);
IActionResult actionResult = await controller.Get(10);
OkObjectResult okResult = Assert.IsType <OkObjectResult>(actionResult);
IEnumerable <TopAgent> topAgents = Assert.IsAssignableFrom <IEnumerable <TopAgent> >(okResult.Value);
Assert.Empty(topAgents);
}
public async Task Get_AListOfTopAgentsIsObtained_ReturnsListOfAgents()
{
TopAgent[] providedTopAgents = new TopAgent[] {
new TopAgent(1, "agent1", 1),
new TopAgent(2, "agent2", 2)
};
Mock <IFilterParameterParser> filterParameterParser = new Mock <IFilterParameterParser>();
Mock <ITopAgentProvider> topAgentProvider = new Mock <ITopAgentProvider>();
topAgentProvider
.Setup(p => p.GetTopAgents(It.IsAny <int>(), It.IsAny <IEnumerable <string> >()))
.Returns(Task.FromResult(providedTopAgents.AsEnumerable()));
TopAgentsController controller = new TopAgentsController(topAgentProvider.Object, filterParameterParser.Object);
IActionResult actionResult = await controller.Get(10);
OkObjectResult okResult = Assert.IsType <OkObjectResult>(actionResult);
IEnumerable <TopAgent> topAgents = Assert.IsAssignableFrom <IEnumerable <TopAgent> >(okResult.Value);
Assert.Equal(providedTopAgents, topAgents);
}