public BlogServiceTestsReadOnly()
{
// Create a service provider to be shared by all test methods
var serviceCollection = new ServiceCollection();
serviceCollection.AddEntityFramework().AddInMemoryDatabase();
_serviceProvider = serviceCollection.BuildServiceProvider();
// Create options to tell the context to use the InMemory database
var optionsBuilder = new DbContextOptionsBuilder<BloggingContext>();
optionsBuilder.UseInMemoryDatabase();
_contextOptions = optionsBuilder.Options;
// Insert the seed data that is expected by all test methods
using (var context = new BloggingContext(_serviceProvider, _contextOptions))
{
context.Blogs.Add(new Blog { Url = "http://sample.com/cats" });
context.Blogs.Add(new Blog { Url = "http://sample.com/catfish" });
context.Blogs.Add(new Blog { Url = "http://sample.com/dogs" });
context.SaveChanges();
}
}
public void Find_searches_url()
{
// All contexts that share the same service provider will share the same InMemory database
var options = CreateNewContextOptions();
// Insert seed data into the database using one instance of the context
using (var context = new BloggingContext(options))
{
context.Blogs.Add(new Blog { Url = "http://sample.com/cats" });
context.Blogs.Add(new Blog { Url = "http://sample.com/catfish" });
context.Blogs.Add(new Blog { Url = "http://sample.com/dogs" });
context.SaveChanges();
}
// Use a clean instance of the context to run the test
using (var context = new BloggingContext(options))
{
var service = new BlogService(context);
var result = service.Find("cat");
Assert.AreEqual(2, result.Count());
}
}
