public void CountLinesWithSystemNewLine(string text, int expectedLines)
{
using (var stream = new MemoryStream(Encoding.ASCII.GetBytes(text)))
using (var reader = new PositionAwareStreamReaderSystem(stream, new EncodingOptions()))
{
int lineCount = 0;
while (reader.ReadLine() != null)
{
lineCount += 1;
}
Assert.AreEqual(expectedLines, lineCount, $"Unexpected lines:\n{text}");
}
}
public void ReadLinesWithSystemNewLine(string text, int expectedLines)
{
using (var stream = new MemoryStream(Encoding.ASCII.GetBytes(text)))
using (var reader = new PositionAwareStreamReaderSystem(stream, new EncodingOptions()))
{
int lineCount = 0;
while (true)
{
string line = reader.ReadLine();
if (line == null)
{
break;
}
lineCount += 1;
StringAssert.StartsWith($"Line {lineCount}", line, $"Invalid line: {line}");
}
Assert.AreEqual(expectedLines, lineCount, $"Unexpected lines:\n{text}");
}
}
private void compareReaderImplementations(string fileName, Encoding enc, int maxPosition)
{
string DataPath = "..\\..\\data\\";
EncodingOptions encOpts = new EncodingOptions();
encOpts.Encoding = enc;
using (Stream s1 = new FileStream(DataPath + fileName, FileMode.Open, FileAccess.Read))
using (Stream s2 = new FileStream(DataPath + fileName, FileMode.Open, FileAccess.Read))
{
using (ILogStreamReader r1 = new PositionAwareStreamReaderLegacy(s1, encOpts))
using (ILogStreamReader r2 = new PositionAwareStreamReaderSystem(s2, encOpts))
{
for (int lineNum = 0; ; lineNum++)
{
string line1 = r1.ReadLine();
string line2 = r2.ReadLine();
if (line1 == null && line2 == null)
{
break;
}
Assert.AreEqual(line1, line2, "File " + fileName);
if (r1.Position != maxPosition)
{
Assert.AreEqual(r1.Position, r2.Position, "Line " + lineNum + ", File: " + fileName);
}
else
{
//Its desired that the position of the new implementation is 2 bytes ahead to fix the problem of empty lines every time a new line is appended.
Assert.AreEqual(r1.Position, r2.Position - 2, "Line " + lineNum + ", File: " + fileName);
}
}
}
}
}
