public void AppendingOwnsBuffer()
{
var countBefore = _cache.Count;
TextWriter writer1 = new SpoolWriter();
writer1.Write("hello");
TextWriter writer2 = new SpoolWriter();
writer2.Write("before");
writer2.Write(writer1);
writer2.Write("after");
writer1.Write("world");
Assert.AreEqual("helloworld", writer1.ToString());
Assert.AreEqual("beforehelloafter", writer2.ToString());
var _first = typeof(SpoolWriter).GetField("_first", BindingFlags.NonPublic | BindingFlags.Instance);
var _readonly = typeof(SpoolPage).GetField("_readonly", BindingFlags.NonPublic | BindingFlags.Instance);
var _nonreusable = typeof(SpoolPage).GetField("_nonreusable", BindingFlags.NonPublic | BindingFlags.Instance);
var pages1 = (SpoolPage)_first.GetValue(writer1);
var pages2 = (SpoolPage)_first.GetValue(writer2);
Assert.IsTrue((bool)_readonly.GetValue(pages1));
Assert.IsTrue((bool)_nonreusable.GetValue(pages1));
Assert.IsFalse((bool)_readonly.GetValue(pages1.Next));
Assert.IsFalse((bool)_nonreusable.GetValue(pages1.Next));
Assert.IsNull(pages1.Next.Next);
Assert.IsTrue((bool)_readonly.GetValue(pages2));
Assert.IsFalse((bool)_nonreusable.GetValue(pages2));
Assert.IsTrue((bool)_readonly.GetValue(pages2.Next));
Assert.IsTrue((bool)_nonreusable.GetValue(pages2.Next));
Assert.IsFalse((bool)_readonly.GetValue(pages2.Next.Next));
Assert.IsFalse((bool)_nonreusable.GetValue(pages2.Next.Next));
Assert.IsNull(pages2.Next.Next.Next);
var countBeforeCollect = _cache.Count;
// ReSharper disable RedundantAssignment
writer1 = null;
writer2 = null;
// ReSharper restore RedundantAssignment
GC.Collect();
GC.WaitForPendingFinalizers();
var countAfterCollect = _cache.Count;
Assert.AreEqual(0, countBefore);
Assert.AreEqual(0, countBeforeCollect);
Assert.AreEqual(3, countAfterCollect);
}
public void ToStringCombinesResults()
{
TextWriter writer = new SpoolWriter();
writer.Write("hello");
writer.Write("world");
Assert.AreEqual("helloworld", writer.ToString());
}
public void WritingCharacters()
{
TextWriter writer = new SpoolWriter();
writer.Write('a');
writer.Write(new[] { 'b', 'c', 'd' });
writer.Write(new[] { 'x', 'e', 'f', 'g', 'x' }, 1, 3);
Assert.AreEqual("abcdefg", writer.ToString());
}
public void AppendingOwnsBuffer()
{
var countBefore = _cache.Count;
TextWriter writer1 = new SpoolWriter();
writer1.Write("hello");
TextWriter writer2 = new SpoolWriter();
writer2.Write("before");
writer2.Write(writer1);
writer2.Write("after");
writer1.Write("world");
Assert.AreEqual("helloworld", writer1.ToString());
Assert.AreEqual("beforehelloafter", writer2.ToString());
var _first = typeof(SpoolWriter).GetField("_first", BindingFlags.NonPublic | BindingFlags.Instance);
var _readonly = typeof(SpoolPage).GetField("_readonly", BindingFlags.NonPublic | BindingFlags.Instance);
var _nonreusable = typeof(SpoolPage).GetField("_nonreusable", BindingFlags.NonPublic | BindingFlags.Instance);
var pages1 = (SpoolPage)_first.GetValue(writer1);
var pages2 = (SpoolPage)_first.GetValue(writer2);
Assert.IsTrue((bool)_readonly.GetValue(pages1));
Assert.IsTrue((bool)_nonreusable.GetValue(pages1));
Assert.IsFalse((bool)_readonly.GetValue(pages1.Next));
Assert.IsFalse((bool)_nonreusable.GetValue(pages1.Next));
Assert.IsNull(pages1.Next.Next);
Assert.IsTrue((bool)_readonly.GetValue(pages2));
Assert.IsFalse((bool)_nonreusable.GetValue(pages2));
Assert.IsTrue((bool)_readonly.GetValue(pages2.Next));
Assert.IsTrue((bool)_nonreusable.GetValue(pages2.Next));
Assert.IsFalse((bool)_readonly.GetValue(pages2.Next.Next));
Assert.IsFalse((bool)_nonreusable.GetValue(pages2.Next.Next));
Assert.IsNull(pages2.Next.Next.Next);
var countBeforeCollect = _cache.Count;
// ReSharper disable RedundantAssignment
writer1 = null;
writer2 = null;
// ReSharper restore RedundantAssignment
GC.Collect();
GC.WaitForPendingFinalizers();
var countAfterCollect = _cache.Count;
Assert.AreEqual(0, countBefore);
Assert.AreEqual(0, countBeforeCollect);
Assert.AreEqual(3, countAfterCollect);
}
public void Empty_and_null_writes_are_acceptable()
{
var writer = new SpoolWriter();
writer.Write("a");
writer.Write("");
writer.Write((string)null);
writer.Write("b");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("ab"));
}
public void Multiple_writes_are_combined()
{
var writer = new SpoolWriter();
writer.Write("Hello");
writer.Write(' ');
writer.Write("World");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("Hello World"));
}
public void Multiple_writes_are_combined()
{
var writer = new SpoolWriter();
writer.Write("Hello");
writer.Write(' ');
writer.Write("World");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("Hello World"));
}
public void StringWriterToSpoolWriter()
{
TextWriter writer1 = new StringWriter();
TextWriter writer2 = new SpoolWriter();
for (int index = 0; index != 5000; ++index)
{
writer1.Write(index);
}
writer2.Write("before");
writer1.WriteTo(writer2);
writer2.Write("after");
Assert.AreEqual("before" + _FiveThousandNumbers + "after", writer2.ToString());
}
public void Empty_and_null_writes_are_acceptable()
{
var writer = new SpoolWriter();
writer.Write("a");
writer.Write("");
writer.Write((string)null);
writer.Write("b");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("ab"));
}
public void Peek_and_read_return_characters_and_advance_appropriately()
{
var writer = new SpoolWriter();
writer.Write("ab");
writer.Write("c");
var reader = new SpoolReader(writer);
Assert.That(reader.Peek(), Is.EqualTo((int)'a'));
Assert.That(reader.Read(), Is.EqualTo((int)'a'));
Assert.That(reader.Peek(), Is.EqualTo((int)'b'));
Assert.That(reader.Read(), Is.EqualTo((int)'b'));
Assert.That(reader.Peek(), Is.EqualTo((int)'c'));
Assert.That(reader.Read(), Is.EqualTo((int)'c'));
Assert.That(reader.Peek(), Is.EqualTo(-1));
Assert.That(reader.Read(), Is.EqualTo(-1));
}
public override void DoMemento(TextWriterMemento memento)
{
foreach (var written in memento.Written)
{
_writer.Write(written);
}
}
public void DisposingWriter()
{
var countBefore = _cache.Count;
using (TextWriter writer = new SpoolWriter())
{
writer.Write("sending to the pool");
}
var countBetween = _cache.Count;
using (TextWriter writer = new SpoolWriter())
{
writer.Write("taking and returning to pool");
}
// force GC to ensure finalize doesn't push buffers into allocator again
GC.Collect();
GC.WaitForPendingFinalizers();
var countAfter = _cache.Count;
Assert.AreEqual(0, countBefore);
Assert.AreEqual(1, countBetween);
Assert.AreEqual(1, countAfter);
}
public void Peek_and_read_return_characters_and_advance_appropriately()
{
var writer = new SpoolWriter();
writer.Write("ab");
writer.Write("c");
var reader = new SpoolReader(writer);
Assert.That(reader.Peek(), Is.EqualTo((int)'a'));
Assert.That(reader.Read(), Is.EqualTo((int)'a'));
Assert.That(reader.Peek(), Is.EqualTo((int)'b'));
Assert.That(reader.Read(), Is.EqualTo((int)'b'));
Assert.That(reader.Peek(), Is.EqualTo((int)'c'));
Assert.That(reader.Read(), Is.EqualTo((int)'c'));
Assert.That(reader.Peek(), Is.EqualTo(-1));
Assert.That(reader.Read(), Is.EqualTo(-1));
}
public void StringReader_should_return_written_data()
{
var writer = new SpoolWriter();
writer.Write("Hello world");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("Hello world"));
}
public void MultiplePagesCombinedResult()
{
TextWriter writer = new SpoolWriter();
for (int index = 0; index != 5000; ++index)
{
writer.Write(index);
}
Assert.AreEqual(_FiveThousandNumbers, writer.ToString());
}
public void StringReader_should_return_written_data()
{
var writer = new SpoolWriter();
writer.Write("Hello world");
var reader = new SpoolReader(writer);
var content = reader.ReadToEnd();
Assert.That(content, Is.EqualTo("Hello world"));
}
public void SpoolWriterOriginatorBuildsMementoWithChanges()
{
var writer = new SpoolWriter();
var originator = TextWriterOriginator.Create(writer);
writer.Write("Alpha");
originator.BeginMemento();
writer.Write("B");
writer.Write("e");
writer.Write("t");
writer.Write("a");
var memento = originator.EndMemento();
writer.Write("Gamma");
var writer2 = new SpoolWriter();
writer2.Write("Delta");
TextWriterOriginator.Create(writer2).DoMemento(memento);
writer2.Write("Epsilon");
Assert.That(writer.ToString(), Is.EqualTo("AlphaBetaGamma"));
Assert.That(writer2.ToString(), Is.EqualTo("DeltaBetaEpsilon"));
}
public void SpoolWriterOriginatorBuildsMementoWithChanges()
{
var writer = new SpoolWriter();
var originator = TextWriterOriginator.Create(writer);
writer.Write("Alpha");
originator.BeginMemento();
writer.Write("B");
writer.Write("e");
writer.Write("t");
writer.Write("a");
var memento = originator.EndMemento();
writer.Write("Gamma");
var writer2 = new SpoolWriter();
writer2.Write("Delta");
TextWriterOriginator.Create(writer2).DoMemento(memento);
writer2.Write("Epsilon");
Assert.That(writer.ToString(), Is.EqualTo("AlphaBetaGamma"));
Assert.That(writer2.ToString(), Is.EqualTo("DeltaBetaEpsilon"));
}
public void WritingCharacters()
{
TextWriter writer = new SpoolWriter();
writer.Write('a');
writer.Write(new[] { 'b', 'c', 'd' });
writer.Write(new[] { 'x', 'e', 'f', 'g', 'x' }, 1, 3);
Assert.AreEqual("abcdefg", writer.ToString());
}
public void ToStringCombinesResults()
{
TextWriter writer = new SpoolWriter();
writer.Write("hello");
writer.Write("world");
Assert.AreEqual("helloworld", writer.ToString());
}
public void StringWriterToSpoolWriter()
{
TextWriter writer1 = new StringWriter();
TextWriter writer2 = new SpoolWriter();
for (int index = 0; index != 5000; ++index)
{
writer1.Write(index);
}
writer2.Write("before");
writer1.WriteTo(writer2);
writer2.Write("after");
Assert.AreEqual("before" + _FiveThousandNumbers + "after", writer2.ToString());
}
public void MultiplePagesCombinedResult()
{
TextWriter writer = new SpoolWriter();
for (int index = 0; index != 5000; ++index)
{
writer.Write(index);
}
Assert.AreEqual(_FiveThousandNumbers, writer.ToString());
}
public void DisposingWriter()
{
var countBefore = _cache.Count;
using (TextWriter writer = new SpoolWriter())
{
writer.Write("sending to the pool");
}
var countBetween = _cache.Count;
using (TextWriter writer = new SpoolWriter())
{
writer.Write("taking and returning to pool");
}
// force GC to ensure finalize doesn't push buffers into allocator again
GC.Collect();
GC.WaitForPendingFinalizers();
var countAfter = _cache.Count;
Assert.AreEqual(0, countBefore);
Assert.AreEqual(1, countBetween);
Assert.AreEqual(1, countAfter);
}
