void Test(String lfdText, params ExpectedLine[] expectedLines)
{
//
// Test using LfdReader
//
using (var reader = new LfdTextReader(new StringReader(lfdText)))
{
for (int i = 0; i < expectedLines.Length; i++)
{
var line = reader.ReadLine();
Assert.AreEqual(expectedLines[i].id, line.id);
if (expectedLines[i].fields == null || expectedLines[i].fields.Length == 0)
{
Assert.IsNull(line.fields);
}
else
{
Assert.AreEqual(expectedLines[i].fields.Length, line.fields.Length);
for (int fieldIndex = 0; fieldIndex < line.fields.Length; fieldIndex++)
{
Assert.AreEqual(expectedLines[i].fields[fieldIndex], line.fields[fieldIndex]);
}
}
}
Assert.IsNull(reader.ReadLine());
}
Byte[] linesAsBytes = Encoding.UTF8.GetBytes(lfdText);
//
// Test using LineParser
//
for (uint initialBufferSize = 1; initialBufferSize <= lfdText.Length; initialBufferSize++)
{
OffsetLineParser lineParser = new OffsetLineParser(new ByteArrayReference(initialBufferSize));
lineParser.Add(linesAsBytes, linesAsBytes.Length);
List <String> fields = new List <String>();
Byte[] lineBuffer;
Int32 lineOffset = 0, lineLength = 0;
for (int i = 0; i < expectedLines.Length; i++)
{
do
{
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
Assert.IsNotNull(lineBuffer);
fields.Clear();
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
} while (fields.Count == 0);
Assert.AreEqual(expectedLines[i].id, fields[0]);
if (expectedLines[i].fields == null || expectedLines[i].fields.Length == 0)
{
Assert.AreEqual(1, fields.Count);
}
else
{
Assert.AreEqual(expectedLines[i].fields.Length, fields.Count - 1);
for (int fieldIndex = 0; fieldIndex < fields.Count - 1; fieldIndex++)
{
Assert.AreEqual(expectedLines[i].fields[fieldIndex], fields[fieldIndex + 1]);
}
}
}
Assert.IsNull(lineParser.GetLine(ref lineOffset, ref lineLength));
}
}
public void GenericTestMethod()
{
StringBuilder builder = new StringBuilder();
builder.AppendLine("");
builder.AppendLine("LineWithNoValues \t ");
builder.AppendLine("Line1Fields \t field1 \t\t");
builder.AppendLine("Line2Fields \t field1 \t\tfield2 ");
builder.AppendLine("LineFieldWithWhitespace \t\t \t \"this ; is a long field\" \t");
builder.AppendLine("LineWithEmptyFields \t\t\"\" \"\" \t");
using (var reader = new LfdTextReader(new StringReader(builder.ToString())))
{
LfdLine line = reader.ReadLine();
Assert.AreEqual("LineWithNoValues", line.id);
line = reader.ReadLine();
Assert.AreEqual("Line1Fields", line.id);
Assert.AreEqual("field1", line.fields[0]);
line = reader.ReadLine();
Assert.AreEqual("Line2Fields", line.id);
Assert.AreEqual("field1", line.fields[0]);
Assert.AreEqual("field2", line.fields[1]);
line = reader.ReadLine();
Assert.AreEqual("LineFieldWithWhitespace", line.id);
Assert.AreEqual("this ; is a long field", line.fields[0]);
line = reader.ReadLine();
Assert.AreEqual("LineWithEmptyFields", line.id);
Assert.AreEqual(String.Empty, line.fields[0]);
Assert.AreEqual("", line.fields[1]);
Assert.IsNull(reader.ReadLine());
}
//
// Test using line parser
//
OffsetLineParser lineParser = new OffsetLineParser(new ByteArrayReference(1));
Byte[] linesAsBytes = Encoding.UTF8.GetBytes(builder.ToString());
lineParser.Add(linesAsBytes, linesAsBytes.Length);
List <String> fields = new List <String>();
Byte[] lineBuffer;
Int32 lineOffset = 0, lineLength = 0;
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual(0, fields.Count);
fields.Clear();
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual("LineWithNoValues", fields[0]);
fields.Clear();
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual("Line1Fields", fields[0]);
Assert.AreEqual("field1", fields[1]);
fields.Clear();
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual("Line2Fields", fields[0]);
Assert.AreEqual("field1", fields[1]);
Assert.AreEqual("field2", fields[2]);
fields.Clear();
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual("LineFieldWithWhitespace", fields[0]);
Assert.AreEqual("this ; is a long field", fields[1]);
fields.Clear();
lineBuffer = lineParser.GetLine(ref lineOffset, ref lineLength);
LfdLine.ParseLine(fields, lineBuffer, lineOffset, lineOffset + lineLength);
Assert.AreEqual("LineWithEmptyFields", fields[0]);
fields.Clear();
}
