public void ArgsValidator_IsPostCountInvalid(int numOfPosts)
{
string[] args = new string[] { "--posts", numOfPosts.ToString() };
var result = ArgsValidator.Validate(args, out numOfPosts);
Assert.IsFalse(result);
}
static void Main(string[] args)
{
args = new string[] { "--posts", "100" };
int numOfPosts;
var hackerNewsItems = new List <HackerNewsItem>();
var hackerNewsBaseUrl = "https://news.ycombinator.com/news?p=";
if (!ArgsValidator.Validate(args, out numOfPosts))
{
Environment.Exit(0);
}
int postsLeftToGet = numOfPosts;
int postsPerPage = 30;
int page = 1;
//this assumes 30 posts per page.
while (postsLeftToGet > postsPerPage)
{
hackerNewsItems.AddRange(Scraper.Scrape(hackerNewsBaseUrl + page++.ToString(), postsPerPage));
postsLeftToGet -= postsPerPage;
}
//get the remaining posts to get
hackerNewsItems.AddRange(Scraper.Scrape(hackerNewsBaseUrl + page++.ToString(), postsLeftToGet));
//now we'll use JsonConvert to serialize the object to json
System.Console.WriteLine(JsonConvert.SerializeObject(
hackerNewsItems,
new JsonSerializerSettings //use this serializer settings to output property names in camelCase
{
ContractResolver = new CamelCasePropertyNamesContractResolver()
}));
System.Console.WriteLine();
}
public void ArgsValidator_IncorrectUsageProducesFalse()
{
string[] args = new string[] { "somethingwrong", "2" };
int numOfPosts;
Assert.IsFalse(ArgsValidator.Validate(args, out numOfPosts));
args = new string[] { "2", "--posts" };
}
public void ArgsValidator_ArgsProducesCorrectNumOfPosts()
{
string[] args = new string[] { "--posts", "2" };
int numOfPosts;
Assert.IsTrue(ArgsValidator.Validate(args, out numOfPosts));
Assert.AreEqual(numOfPosts, 2);
}
