public void GivenTwoCallsWithSameArgument_ThenUnderlyingServiceShouldBeCalledOnce()
{
var underlyingCacheDecorator = A.Fake <ISearchEngine>();
var cacheDecorator = new SearchEngineCachingDecorator(underlyingCacheDecorator, _memoryCache);
cacheDecorator.GetSearchResultsForTerm("Hello");
cacheDecorator.GetSearchResultsForTerm("Hello");
A.CallTo(() => underlyingCacheDecorator.GetSearchResultsForTerm(A <string> ._)).MustHaveHappenedOnceExactly();
}
public void GivenACallToNameProperty_ThenUnderlyingServiceNameShouldBeReturned()
{
var underlyingCacheDecorator = A.Fake <ISearchEngine>();
A.CallTo(() => underlyingCacheDecorator.Name).Returns("The Dude");
var memoryCache = A.Fake <IMemoryCache>();
var cacheDecorator = new SearchEngineCachingDecorator(underlyingCacheDecorator, memoryCache);
var name = cacheDecorator.Name;
name.Should().Be("The Dude");
}
public void GivenTwoCallsWithSameArgument_TheSameObjectShouldBeReturnedBothTimes()
{
var underlyingCacheDecorator = A.Fake <ISearchEngine>();
List <SearchResult> expected = new List <SearchResult> {
new SearchResult {
Title = "The Dude abides"
}
};
A.CallTo(() => underlyingCacheDecorator.GetSearchResultsForTerm(A <string> ._)).Returns(
expected
);
var cacheDecorator = new SearchEngineCachingDecorator(underlyingCacheDecorator, _memoryCache);
var responseOne = cacheDecorator.GetSearchResultsForTerm("Hello");
var responseTwo = cacheDecorator.GetSearchResultsForTerm("Hello");
responseOne.Should().BeEquivalentTo(expected);
responseTwo.Should().BeEquivalentTo(expected);
}
