/// <summary>
/// Sorts a bunch of given names from the supplied file and writes a sorted list of names out to the destination file.
/// </summary>
public async Task <List <FullName> > SortNames(string sourcePath, string destinationPath)
{
// Get the contents of the file
var lines = (await _fileInteropService.ReadFromTextFile(sourcePath)).ToList();
// Sanity check, even through the file interop service should also protect from this.
if (lines?.Count < 1)
{
throw new Exception($"File ({sourcePath}) contains no elements.");
}
// Transform into the type we are working with
List <FullName> unsortedNames = new List <FullName>();
foreach (string line in lines)
{
var fullName = _fullNameFactory.CreateNewFullName(line);
unsortedNames.Add(fullName);
}
// Copy the result into a separate list for sorting and sort by the FullName sorting setup.
List <FullName> sortedNames = unsortedNames.ToList();
sortedNames.Sort();
// Write the results back out to the destination file
await _fileInteropService.WriteTextToFile(destinationPath, sortedNames);
return(sortedNames);
}
public void CreateNewFullName_WithSeparatorMissingFromInput_ThrowsInvalidNameException()
{
// We make a wrong assumption that the string is separated by ';'
// Arrange
string nameString = "Holey;Dooley";
// Act && Assert
Assert.Throws <InvalidNameException>(() => _fullNameFactory.CreateNewFullName(nameString));
// Or we instantiate the factory with the wrong separator -> ','
// Arrange
_fullNameFactory = new FullNameFactory(new [] { ',' });
nameString = "Holey Dooley";
// Act && Assert
Assert.Throws <InvalidNameException>(() => _fullNameFactory.CreateNewFullName(nameString));
}
public void CreateNewFullName_WithValidNameString_CreatesNewFullNameInstance()
{
// Arrange
string nameString = "James Smashing Bond";
// Act
var result = _fullNameFactory.CreateNewFullName(nameString);
// Assert
Assert.That(result.GivenNames, Is.EqualTo(new [] { "James", "Smashing" }));
Assert.That(result.LastName, Is.EqualTo("Bond"));
Assert.That(result.SeparatedBy, Is.EqualTo(_defaultSeparator));
Assert.That(result.ToText(), Is.EqualTo(nameString));
}
public void CreateNewFullName_WithValidNameAndAlternateSeparator_CreatesNewFullNameInstance()
{
// Test instantiation with a different separator
// Arrange
string nameString = "James,Smashing,Bond";
var altSeparator = new[] { ',' };
_fullNameFactory = new FullNameFactory(altSeparator);
// Act
var result = _fullNameFactory.CreateNewFullName(nameString);
// Assert
Assert.That(result.GivenNames, Is.EqualTo(new[] { "James", "Smashing" }));
Assert.That(result.LastName, Is.EqualTo("Bond"));
Assert.That(result.SeparatedBy, Is.EqualTo(altSeparator));
// Test this still represents a comma separated string.
Assert.That(result.ToText(), Is.EqualTo("James Smashing Bond"));
Assert.That(result.ToString(), Is.EqualTo(nameString));
}