/// <summary>
/// Saves books from the raw test data file.
/// </summary>
/// <param name="books"></param>
/// <returns></returns>
public static DbContextOptions <BookStoreContext> SeedWith(this DbContextOptions <BookStoreContext> source, string filePath)
{
var loadedBooks = BookJsonLoader.LoadBooks(filePath);
source.SeedWith(loadedBooks);
return(source);
}
public void TestBookLoadOk()
{
//SETUP
const string searchFile = "JsonBooks01*.json";
var testDataDir = TestFileHelpers.GetTestDataFileDirectory();
//ATTEMPT
var books = BookJsonLoader.LoadBooks(testDataDir, searchFile);
//VERIFY
books.Count().ShouldEqual(4);
}
public void TestCalcReviewsOk(params int [] voteVals)
{
//SETUP
var avgRating = voteVals.Average();
var numVotes = voteVals.Length;
//ATTEMPT
var reviews = BookJsonLoader.CalculateReviewsToMatch(avgRating, numVotes);
//VERIFY
reviews.Count.ShouldEqual(numVotes);
reviews.Average(x => x.NumStars).ShouldEqual(avgRating);
}
public void TestBookLoadBuildReviewsOk()
{
//SETUP
const string searchFile = "JsonBooks01*.json";
var testDataDir = TestData.GetTestDataDir();
//ATTEMPT
var books = BookJsonLoader.LoadBooks(testDataDir, searchFile);
//VERIFY
var expectedAveVotes = new[] { 5.0, 3.0, 4.0, 4.5 };
books.Select(x => x.Reviews.Average(y => y.NumStars)).ShouldEqual(expectedAveVotes);
}
public void TestLoadBooksOk()
{
//SETUP
var testsDir = TestData.GetCallingAssemblyTopLevelDir();
var dataDir = Path.GetFullPath($"{testsDir}{Path.DirectorySeparatorChar}..{Path.DirectorySeparatorChar}" +
$"{nameof(ExampleWebApp)}{Path.DirectorySeparatorChar}wwwroot{Path.DirectorySeparatorChar}{DbSetupHelpers.SeedFileSubDirectory}");
//ATTEMPT
var books = BookJsonLoader.LoadBooks(dataDir,
DbSetupHelpers.SeedDataSearchName).ToList();
//VERIFY
books.Count.ShouldEqual(53);
books.All(x => x.ActualPrice != 0).ShouldBeTrue();
}
public void TestBookLoadTagsOk()
{
//SETUP
const string searchFile = "JsonBooks01*.json";
var testDataDir = TestData.GetTestDataDir();
//ATTEMPT
var books = BookJsonLoader.LoadBooks(testDataDir, searchFile).ToList();
//VERIFY
books[0].Tags.Select(x => x.TagId).ShouldEqual(new[] { "Web" });
books[1].Tags.Select(x => x.TagId).ShouldEqual(new [] { "Web" });
books[2].Tags.Select(x => x.TagId).ShouldEqual(new[] { "Android" });
books[3].Tags.Select(x => x.TagId).ShouldEqual(new[] { "Microsoft .NET", "Web" });
books.SelectMany(x => x.Tags).Distinct().Count().ShouldEqual(3);
}
public static async Task <int> SeedDatabaseIfNoBooksAsync(this EfCoreContext context, string dataDirectory)
{
var numBooks = context.Books.Count();
if (numBooks == 0)
{
//the database is empty so we fill it from a json file
var books = BookJsonLoader.LoadBooks(Path.Combine(dataDirectory, SeedFileSubDirectory),
SeedDataSearchName).ToList();
context.Books.AddRange(books);
await context.SaveChangesAsync();
//We add this separately so that it has the highest Id. That will make it appear at the top of the default list
context.Books.Add(SpecialBook.CreateSpecialBook());
await context.SaveChangesAsync();
numBooks = books.Count + 1;
}
return(numBooks);
}
public static int SeedDatabase(this DataContext context, string dataDirectory)
{
if (!(context.GetService <IDatabaseCreator>() as RelationalDatabaseCreator).Exists())
{
throw new InvalidOperationException("The database does not exist. If you are using Migrations then run PMC command update-database to create it");
}
var numBooks = context.Books.Count();
if (numBooks == 0)
{
//the database is emply so we fill it from a json file
var books = BookJsonLoader.LoadBooks(Path.Combine(dataDirectory, SeedFileSubDirectory), SeedDataSearchName).ToList();
context.Books.AddRange(books);
context.SaveChanges();
//We add this separately so that it has the highest Id. That will make it appear at the top of the default list
context.Books.Add(SpecialBook.CreateSpecialBook());
context.SaveChanges();
numBooks = books.Count + 1;
}
return(numBooks);
}
