public async Task Search_ArgumentNullException_Query(string query)
{
var service = new WebSearchService(Enumerable.Empty <ISearchEngine>());
var ex = await Assert.ThrowsAsync <ArgumentNullException>(() => service.Search(query));
Assert.Equal(nameof(query), ex.ParamName);
}
public async Task Search_EmptySearchEngineMessage_TwoEngines()
{
var engine = EmptySearchEngine();
var service = new WebSearchService(
new List <ISearchEngine> {
engine, DelaySearchEngine(3000)
});
var model = await service.Search("query");
Assert.Equal(count, model.Items.Count());
Assert.Contains(WebSearchService.NotFoundMessage(engine.Name), model.Message);
}
public async Task Search_EmptySearchEngineMessage_OneEngine()
{
var engine = EmptySearchEngine();
var service = new WebSearchService(
new List <ISearchEngine> {
engine
});
var model = await service.Search("query");
Assert.Null(model.Items);
Assert.Contains(WebSearchService.NotFoundMessage(engine.Name), model.Message);
}
public async Task Search_IsFaultedMessage_OneEngine()
{
var engine = FaultSearchEngine();
var service = new WebSearchService(
new List <ISearchEngine> {
engine
});
var model = await service.Search("query");
Assert.Null(model.Items);
Assert.Contains(WebSearchService.IsFaultedMessage(
engine.Name, exceptionMessage), model.Message);
}
public async Task Search_HasOnlyFastestEngineFoundMessage_TwoEngines()
{
var workEngine = WorkSearchEngine();
var slowEngine = DelaySearchEngine(3000);
var service = new WebSearchService(
new List <ISearchEngine> {
slowEngine, workEngine
});
var model = await service.Search("query");
Assert.Equal(count, model.Items.Count());
Assert.Contains(WebSearchService.HasFoundMessage(
workEngine.Name, count), model.Message);
Assert.DoesNotContain(WebSearchService.HasFoundMessage(
slowEngine.Name, count), model.Message);
}