public void NewsProcessor_Constructor_Calls_GetListOfStories()
{
var numberOfStories = 25;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
_dataRetrievalMock.Verify(m => m.GetListOfStories(), Times.Once);
}
public void NewsProcessor_GetNumberOfPages_NoPartialPage_CorrectValue()
{
var numberOfStories = 30;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
var result = newsProcessor.GetNumberOfPages();
Assert.AreEqual(3, result);
}
public void NewsProcessor_Constructor_Calls_GetStory_CorrectNumberOfTimes()
{
var numberOfStories = 25;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
_dataRetrievalMock.Verify(m => m.GetStory("1"), Times.Once);
_dataRetrievalMock.Verify(m => m.GetStory(It.IsAny <string>()), Times.Exactly(25));
}
public void NewsProcessor_GetNumberOfPages_Search_NoResults_Returns0()
{
var numberOfStories = 30;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
var result = newsProcessor.GetNumberOfPages("44");
// 0 records expected to match
Assert.AreEqual(0, result);
}
public void NewsProcessor_GetPageOfStories_UsesCachedValue()
{
var numberOfStories = 25;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
_dataRetrievalMock.Verify(m => m.GetStory("25"), Times.Once);
var results = newsProcessor.GetPageOfStories(1).ToList();
var story = results[0];
Assert.AreEqual("25", story.Id);
_dataRetrievalMock.Verify(m => m.GetStory("25"), Times.Once);
}
public void NewsProcessor_GetPageOfStories_PartialPage_ReturnsCorrectStories()
{
var numberOfStories = 25;
SetupTestData(numberOfStories);
var newsProcessor = new NewsProcessor(_dataRetrievalMock.Object);
var results = newsProcessor.GetPageOfStories(3).ToList();
Assert.AreEqual(5, results.Count());
// Expect stories 5 through 1
for (var i = 0; i < 5; i++)
{
var story = results[i];
Assert.AreEqual((5 - i).ToString(), story.Id);
Assert.AreEqual("Title" + (5 - i).ToString(), story.Title);
Assert.AreEqual("Url" + (5 - i).ToString(), story.Url);
}
}
