private void compareReaderImplementations(string fileName, Encoding enc)
{
string DataPath = "..\\..\\data\\";
EncodingOptions encOpts = new EncodingOptions();
encOpts.Encoding = enc;
Stream s1 = new FileStream(DataPath + fileName, FileMode.Open, FileAccess.Read);
PositionAwareStreamReader r1 = new PositionAwareStreamReader(s1, encOpts, false);
Stream s2 = new FileStream(DataPath + fileName, FileMode.Open, FileAccess.Read);
PositionAwareStreamReader r2 = new PositionAwareStreamReader(s2, encOpts, true);
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);
Assert.AreEqual(r1.Position, r2.Position, "Zeile " + lineNum + ", File: " + fileName);
}
}
void Read_All_Position(Encoding encoding)
{
MemoryStream stream = new MemoryStream(encoding.GetBytes(TestString));
PositionAwareStreamReader reader = new PositionAwareStreamReader(stream, encoding);
char[] buffer = new char[TestString.Length];
Assert.AreEqual(TestString.Length, reader.Read(buffer, 0, buffer.Length));
Assert.AreEqual(TestString, new string(buffer));
Assert.AreEqual(TestString.Length, reader.Position);
}
void Read_Fragment_Position(Encoding encoding)
{
MemoryStream stream = new MemoryStream(encoding.GetBytes(TestString));
PositionAwareStreamReader reader = new PositionAwareStreamReader(stream, encoding);
int charsToRead = TestString.Length / 2;
char[] buffer = new char[charsToRead];
Assert.AreEqual(charsToRead, reader.Read(buffer, 0, charsToRead));
Assert.AreEqual(TestString.Substring(0, charsToRead), new string(buffer));
Assert.AreEqual(charsToRead, reader.Position);
}
void Read_All_Position(Encoding encoding)
{
MemoryStream stream = new MemoryStream(encoding.GetBytes(TestString));
PositionAwareStreamReader reader = new PositionAwareStreamReader(stream, encoding);
char[] buffer = new char[TestString.Length];
Assert.AreEqual(TestString.Length, reader.Read(buffer, 0, buffer.Length));
Assert.AreEqual(TestString, new string(buffer));
Assert.AreEqual(TestString.Length, reader.Position);
}
void Read_Fragment_Position(Encoding encoding)
{
MemoryStream stream = new MemoryStream(encoding.GetBytes(TestString));
PositionAwareStreamReader reader = new PositionAwareStreamReader(stream, encoding);
int charsToRead = TestString.Length / 2;
char[] buffer = new char[charsToRead];
Assert.AreEqual(charsToRead, reader.Read(buffer, 0, charsToRead));
Assert.AreEqual(TestString.Substring(0, charsToRead), new string(buffer));
Assert.AreEqual(charsToRead, reader.Position);
}
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))
{
PositionAwareStreamReader r1 = new PositionAwareStreamReader(s1, encOpts, false);
PositionAwareStreamReader r2 = new PositionAwareStreamReader(s2, encOpts, true);
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);
}
}
}
}
