public void Should_throw_directorynotfoundexception_when_directory_not_exist()
{
string missingDirectory = @"unknown\notfound.csv";
TestUtils.DeleteDirectory(missingDirectory);
Assert.Throws <DirectoryNotFoundException>(delegate
{
var contactsReader = new ContactsReader(missingDirectory);
});
}
public void Should_throw_filenotfoundexception_when_file_not_exist()
{
string missingFile = @"notfound.csv";
TestUtils.DeleteFile(missingFile);
Assert.Throws <FileNotFoundException>(delegate
{
var contactsReader = new ContactsReader(missingFile);
});
}
public static async Task <IEnumerable <Contacts> > ReadFromFile(string file)
{
var listOfContacts = new List <Contacts>();
using (var contactsReader = new ContactsReader(file))
{
while (!contactsReader.isEndOfStream())
{
var foundContact = await contactsReader.ReadContacts();
if (foundContact != null)
{
listOfContacts.Add(foundContact);
}
}
}
return(listOfContacts);
}
public async Task Should_use_a_streamreader_to_read_file()
{
string contactName = "robert simmons";
string contactPostalAddress = "Holborn, London";
string newContact = string.Format(CultureInfo.InvariantCulture, "{0}\t{1}", contactName, contactPostalAddress);
using (var memoryStream = new MemoryStream())
using (var streamWriter = new StreamWriter(memoryStream))
using (var streamReader = new StreamReader(memoryStream))
using (var contactsReader = new ContactsReader(streamReader, new char[] { '\t' }))
{
await streamWriter.WriteLineAsync(newContact);
await streamWriter.FlushAsync();
memoryStream.Position = 0; // Fix issue with NullReferenceException
var contact = await contactsReader.ReadContacts();
Assert.AreEqual(contactName, contact.Name);
Assert.AreEqual(contactPostalAddress, contact.PostalAddress);
}
}
