public void GetByExtension_ShouldReturnNotSupportedReaderWhenNoReaderFoundForGivenExtension()
{
var readers = new IDataReader[]
{
new OneReader(),
new TwoReader(),
new ThreeReader(),
};
var provider = new DataReaderProvider(readers);
var actualReader = provider.GetByExtension("test");
actualReader.Should().BeOfType <NotSupportedDataReader>();
}
private static MainViewModel InitializeViewModelWithDependencies()
{
const char CSV_COLUMN_DELIMETER = ',';
var readers = new IDataReader[]
{
new ExcelDataReader(),
new CsvDataReader(CSV_COLUMN_DELIMETER),
new JsonDataReader()
};
var readerProvider = new DataReaderProvider(readers);
var dataProvider = new FileDataProvider(readerProvider);
var calculator = new ScatterReportCalculator();
return(new MainViewModel(dataProvider, calculator));
}
public void GetByExtension_ShouldReturnReaderWhichTypeDecoratedWithGivenExtension()
{
var expectedReader = new OneReader();
var readers = new IDataReader[]
{
new TwoReader(),
expectedReader,
new ThreeReader()
};
var provider = new DataReaderProvider(readers);
var actualReader = provider.GetByExtension("csv");
actualReader.Should().BeSameAs(expectedReader);
}
public void GetByExtension_ShouldReturnSameReaderForTwoExtensionsWhenReaderSupportsGivenExtensions()
{
var expectedReader = new TwoReader();
var readers = new IDataReader[]
{
new OneReader(),
new ThreeReader(),
expectedReader
};
var provider = new DataReaderProvider(readers);
var xlsReader = provider.GetByExtension("xls");
var xlsxReader = provider.GetByExtension("xlsx");
xlsReader.Should().BeSameAs(expectedReader);
xlsReader.Should().BeSameAs(xlsxReader);
}