public void EnumeratesLines()
{
var lines = Enumerable.Range(0, 10).Select(i => $"line {i}").ToArray();
var content = string.Join(Environment.NewLine, lines);
using (var streamReader = new StreamReader(new MemoryStream(Encoding.Default.GetBytes(content))))
{
var enumerable = new StreamReaderEnumerable(streamReader);
var actualLines = enumerable.ToList();
CollectionAssert.AreEqual(lines, actualLines);
}
}
public void DisposesWhenEnumerationIsCompleted()
{
var disposable = new TestDisposable();
var memoryStream = new TestMemoryStream(Encoding.Default.GetBytes("line1\r\nline2\r\nline3"));
var streamReader = new TestStreamReader(memoryStream);
var enumerable = new StreamReaderEnumerable(streamReader, disposable);
// complete enumeration
var lines = enumerable.ToList();
Assert.IsTrue(streamReader.DisposeCalled);
Assert.IsTrue(streamReader.DisposeCalledDisposingValue);
Assert.IsTrue(memoryStream.DisposeCalled);
Assert.IsTrue(memoryStream.DisposeCalledDisposingValue);
Assert.IsTrue(disposable.DisposeCalled);
}