public void BingSearchEngine_GetSearchResultsAsync_MultipleResults_HappyPath()
{
// arrange
var searchTerm = "hello";
var urlSelector = "h2 > a";
var titleSelector = "h2 > a";
var captionSelector = "div.b_caption > p";
var searchResultSelector = "li.b_algo";
var htmlParserMock = new AngleSharpHtmlParser();
var queryStringEncoder = new QueryStringEncoder();
var bingEngineSearchSelector = new BingSearchEngineSelector(urlSelector, titleSelector, captionSelector);
var searchEngine = new SearchEngine(htmlParserMock,
bingEngineSearchSelector,
queryStringEncoder,
"https://www.bing.com/search?q=",
searchResultSelector);
// act
var results = searchEngine.GetSearchResults(searchTerm);
// assert
Assert.IsNotNull(results);
Assert.IsTrue(results.Count() > 1);
Assert.IsTrue(!String.IsNullOrEmpty(results.First().Url));
Assert.IsTrue(!String.IsNullOrEmpty(results.First().Title));
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddCors();
services.AddMediatR(Assembly.GetExecutingAssembly(),
Assembly.GetAssembly(typeof(GetSearchResultsQueryHandler)));
services.AddSingleton <IQueryStringEncoder, QueryStringEncoder>();
services.AddSingleton <IAngleSharpHtmlParser, AngleSharpHtmlParser>();
services.AddSingleton <IValidator <string>, SearchTermValidator>();
services.AddSingleton <Microsoft.Extensions.Caching.Memory.IMemoryCache, Microsoft.Extensions.Caching.Memory.MemoryCache>();
services.AddSingleton <ICacheWrapper, CacheWrapper>();
var provider = services.BuildServiceProvider();
var htmlParser = provider.GetService <IAngleSharpHtmlParser>();
var queryStringEncoder = provider.GetService <IQueryStringEncoder>();
var bingSelector = new BingSearchEngineSelector(Configuration.GetValue <string>("BingUrlSelector"),
Configuration.GetValue <string>("BingTitleSelector"),
Configuration.GetValue <string>("BingCaptionSelector"));
var yahooSelector = new YahooSearchEngineSelector(Configuration.GetValue <string>("YahooUrlSelector"),
Configuration.GetValue <string>("YahooTitleSelector"),
Configuration.GetValue <string>("YahooCaptionSelector"));
// Bing search
services.AddSingleton <ISearchEngine>(new SearchEngine(htmlParser,
bingSelector,
queryStringEncoder,
Configuration.GetValue <string>("BingUrl"),
Configuration.GetValue <string>("BingSearchResultSelector")
));
// Yahoo search
services.AddSingleton <ISearchEngine>(new SearchEngine(htmlParser,
yahooSelector,
queryStringEncoder,
Configuration.GetValue <string>("YahooUrl"),
Configuration.GetValue <string>("YahooSearchResultSelector")));
services.AddSwaggerGen(c => {
c.SwaggerDoc("v1", new OpenApiInfo
{
Version = "v1",
Title = "Blackdot Search API",
Description = "A meta search engine for investigation searches",
Contact = new OpenApiContact
{
Name = "Lee Walton",
Email = "*****@*****.**",
Url = new Uri("http://kitedeveloper.blogspot.com/"),
}
});
var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
c.IncludeXmlComments(xmlPath);
});
}
public void Init()
{
var config = new ConfigurationBuilder().AddJsonFile("appsettings.json").Build();
IServiceCollection services = new ServiceCollection();
services.AddSingleton <IAngleSharpHtmlParser, AngleSharpHtmlParser>();
services.AddSingleton <IQueryStringEncoder, QueryStringEncoder>();
var provider = services.BuildServiceProvider();
var htmlParser = provider.GetService <IAngleSharpHtmlParser>();
var queryStringEncoder = provider.GetService <IQueryStringEncoder>();
var bingSelector = new BingSearchEngineSelector(config.GetValue <string>("BingUrlSelector"),
config.GetValue <string>("BingTitleSelector"),
config.GetValue <string>("BingCaptionSelector"));
var yahooSelector = new YahooSearchEngineSelector(config.GetValue <string>("YahooUrlSelector"),
config.GetValue <string>("YahooTitleSelector"),
config.GetValue <string>("YahooCaptionSelector"));
// Bing search
services.AddSingleton <ISearchEngine>(new SearchEngine(htmlParser,
bingSelector,
queryStringEncoder,
config.GetValue <string>("BingUrl"),
config.GetValue <string>("BingSearchResultSelector")
));
// Yahoo search
services.AddSingleton <ISearchEngine>(new SearchEngine(htmlParser,
yahooSelector,
queryStringEncoder,
config.GetValue <string>("YahooUrl"),
config.GetValue <string>("YahooSearchResultSelector")));
services.AddMediatR(Assembly.GetExecutingAssembly(),
Assembly.GetAssembly(typeof(GetSearchResultsQueryHandler)));
services.AddSingleton <IValidator <string>, SearchTermValidator>();
provider = services.BuildServiceProvider();
this.mediator = provider.GetService <IMediator>();
}
