public void CreateCSVFile_GivenFileNameAndManyCustomers_ShouldSaveManyContacts()
{
// Arrange
var customers = Builder <Customer> .CreateListOfSize(12).Build();
var fileSystem = Substitute.For <IFileSystem>();
var dublicates = Substitute.For <IDublicates>();
var csvFileGenerator = new CsvFileGenerator(fileSystem, dublicates);
var filename = "customers";
// Act
csvFileGenerator.CreateCsvFile(filename, customers);
// Assert
fileSystem.Received(12).WriteLine(filename, Arg.Any <string>());
}
public void FileSystem_GivenAllData_ShouldSaveBatchesOf20Customers()
{
// Arrange
var customers = GetCustomCustomerList();
var fileSystem = Substitute.For <IFileSystem>();
var dublicates = new Duplicates();
var csvFileGenerator = new CsvFileGenerator(fileSystem, dublicates);
var filename = "customers";
// Act
csvFileGenerator.GetBatchOfCustomers("customers", customers, 20);
// Assert
fileSystem.Received(20).WriteLine($"{filename}1.csv", Arg.Any <string>());
fileSystem.Received(12).WriteLine($"{filename}2.csv", Arg.Any <string>());
}
public void CreateCSVFile_GivenCustomerBatchOf10Or1500_ShouldSave2Files(int numberOfCustomers, int maximumLineLimit, int access)
{
// Arrange
var customers = Builder <Customer> .CreateListOfSize(numberOfCustomers).Build().ToList();
var filename = "customers";
var fileSystem = Substitute.For <IFileSystem>();
var dublicates = new Duplicates();
var csvFileGenerator = new CsvFileGenerator(fileSystem, dublicates);
// Act
csvFileGenerator.GetBatchOfCustomers("customers", customers, maximumLineLimit);
// Assert
fileSystem.Received(maximumLineLimit).WriteLine($"{filename}1.csv", Arg.Any <string>());
fileSystem.Received(access).WriteLine($"{filename}2.csv", Arg.Any <string>());
}