public void WhenNullOrWhiteSpaceFilename_ShouldNotWriteToProductionAndDebugFiles(string fileName)
{
//---------------Arrange-------------------
var fileSystem = Substitute.For <IFileSystem>();
var writer = new CompositeCsvFileWriter(fileSystem);
var customers = new CustomerTestDataFactory().CreateCustomers(5);
//---------------Act----------------
writer.Write(fileName, customers);
//---------------Assert ----------------------
fileSystem.DidNotReceive().WriteLine(Arg.Any <string>(), Arg.Any <string>());
fileSystem.DidNotReceive().WriteLine(Arg.Any <string>(), Arg.Any <string>());
}
public void WhenNoDuplicateCustomers_ShouldRemoveDuplicates()
{
//---------------Arrange-------------------
var expected = 12;
var totalRecords = 12;
var removeDuplicatesStrategy = new RemoveDuplicatesStrategy();
var customers = new CustomerTestDataFactory().CreateCustomers(totalRecords);
//---------------Act----------------
var result = removeDuplicatesStrategy.Apply(customers);
//---------------Assert ----------------------
Assert.AreEqual(expected, result.Count);
}
public void Apply_WhenDuplicateCustomers_ShouldReturnOriginalInput()
{
//---------------Arrange-------------------
var expected = 12;
var numberOfRecords = 12;
var strategy = new NullDuplicatesStrategy();
var duplicateCount = 2;
var customers = new CustomerTestDataFactory()
.CreateCustomersWithDuplicates(numberOfRecords, duplicateCount);
//---------------Act----------------
var result = strategy.Apply(customers);
//---------------Assert ----------------------
Assert.AreEqual(expected, result.Count);
Assert.AreEqual(result, customers);
}
public void WhenNotNullCustomers_ShouldWriteToProductionAndDebugFiles()
{
//---------------Arrange-------------------
var productionBatchSize = 15000;
var debugBatchSize = 20;
var numberOfRecords = 15003;
var fileName = "file.csv";
var fileSystem = Substitute.For <IFileSystem>();
var writer = new CompositeCsvFileWriter(fileSystem);
var customers = new CustomerTestDataFactory().CreateCustomersWithDuplicates(numberOfRecords, 2);
//---------------Act----------------
writer.Write(fileName, customers);
//---------------Assert ----------------------
fileSystem.Received(productionBatchSize).WriteLine("1_file.csv", Arg.Any <string>());
fileSystem.Received(2).WriteLine("2_file.csv", Arg.Any <string>());
fileSystem.Received(debugBatchSize).WriteLine("1_debug_file.csv", Arg.Any <string>());
fileSystem.Received(3).WriteLine("751_debug_file.csv", Arg.Any <string>());
}
