public void WillNotReturnUrlReturnedByWikiUrlFetchServiceIfUrlAlreadyVisited()
{
var user = TestableUser.Create();
var category = new Category {
Slug = "test"
};
var categoryUrl = new CategoryUrl {
Url = "url",
DateRetrieved = DateTime.Now
};
var visit = new Visit {
CategoryUrl = categoryUrl
};
user.WikiUrlFetchService.Setup(s => s.GetUrl(category))
.Returns(new[] { categoryUrl });
user.Visits.Add(visit);
var url = user.GetNextVisit(category);
Assert.Null(url);
}
public void ThrowsExceptionWithNullCategory()
{
var user = TestableUser.Create();
var ex = Assert.Throws <ArgumentException>(() => user.GetNextVisit(null));
Assert.Equal("category", ex.ParamName);
}
public void WillReturnNullUrlIfWikiUrlFetchServiceDoesNotReturnAnyUrl()
{
var user = TestableUser.Create();
var category = new Category {
Slug = "test"
};
user.WikiUrlFetchService.Setup(s => s.GetUrl(category))
.Returns(new CategoryUrl[] { })
.Verifiable();
var url = user.GetNextVisit(category);
user.WikiUrlFetchService.Verify();
Assert.Null(url);
}
public void WillReturnUrlReturnedByWikiUrlFetchServiceIfUrlNotAlreadyVisited()
{
var user = TestableUser.Create();
var category = new Category {
Slug = "test"
};
var categoryUrl = new CategoryUrl {
Url = "url",
DateRetrieved = DateTime.Now
};
user.WikiUrlFetchService.Setup(s => s.GetUrl(category))
.Returns(new[] { categoryUrl });
var url = user.GetNextVisit(category);
Assert.True(user.Visits.Any(v => v.CategoryUrl == categoryUrl));
Assert.Same(categoryUrl, url);
}
public void WillCallWikiUrlFetchServiceToGetUrlForAGivenCategory()
{
var user = TestableUser.Create();
var category = new Category {
Slug = "test"
};
var categoryUrl = new CategoryUrl {
Url = "url",
DateRetrieved = DateTime.Now
};
user.WikiUrlFetchService.Setup(s => s.GetUrl(category))
.Returns(new[] { categoryUrl })
.Verifiable();
var url = user.GetNextVisit(category);
user.WikiUrlFetchService.Verify();
}
public void WillNotReturnSameUrlWhenCalledTwiceEvenIfWikiUrlFetchServiceHasOnlyOneUrlAvailable()
{
var user = TestableUser.Create();
var category = new Category {
Slug = "test"
};
var categoryUrl = new CategoryUrl {
Url = "url",
DateRetrieved = DateTime.Now
};
user.WikiUrlFetchService.Setup(s => s.GetUrl(category))
.Returns(new[] { categoryUrl });
var url1 = user.GetNextVisit(category);
var url2 = user.GetNextVisit(category);
Assert.NotNull(url1);
Assert.Null(url2);
}