public void CanReadFromFile()
{
string textFile = Path.GetTempFileName();
try
{
using (StreamWriter writer = new StreamWriter(textFile, false))
{
writer.WriteLine("01732Juan Perez [email protected]");
writer.WriteLine("02310Guillermo Diez [email protected]");
}
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(textFile))
{
parser.SetFieldWidths(5, 15, 0);
parser.TrimWhiteSpace = true;
Assert.AreEqual("01732:Juan Perez:[email protected]", parser.ReadFields().ToString(":"));
Assert.AreEqual("02310:Guillermo Diez:[email protected]", parser.ReadFields().ToString(":"));
}
}
finally
{
File.Delete(textFile);
}
}
public void FailsIfLineIsShorterThanExpected()
{
string text = "01732Juan Perez";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 15, 8);
parser.ReadFields();
}
}
}
public void CanParseMultipleFields()
{
string text = "01732Juan Perez 11052002";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 15, 8);
Assert.AreEqual(3, parser.GetFieldWidths().Length);
Assert.AreEqual("01732:Juan Perez :11052002", parser.ReadFields().ToString(":"));
}
}
}
public void CanParseSingleField()
{
string text = "single record";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
TextFields fields = parser.ReadFields();
Assert.AreEqual(1, fields.Count);
Assert.AreEqual(text, fields[0]);
}
}
}
public void DefaultPropertiesTest()
{
using (StringReader reader = new StringReader(string.Empty))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
Assert.IsFalse(parser.IgnoreBlankLines);
Assert.IsFalse(parser.TrimWhiteSpace);
Assert.AreEqual(0, parser.LineNumber);
Assert.AreEqual(1, parser.GetFieldWidths().Length);
Assert.AreEqual(0, parser.GetFieldWidths()[0]);
}
}
}
public void CanRemeberFieldWidths()
{
using (StringReader reader = new StringReader(""))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 3, 8);
int[] fieldWidths = parser.GetFieldWidths();
Assert.AreEqual(3, fieldWidths.Length);
Assert.AreEqual(5, fieldWidths[0]);
Assert.AreEqual(3, fieldWidths[1]);
Assert.AreEqual(8, fieldWidths[2]);
}
}
}
public void ReaderRemainsOpen()
{
string text = "01732Juan Perez 11052002";
StringReader reader = new StringReader(text);
FixedWidthFieldParser parser = new FixedWidthFieldParser(reader);
parser.ReadToEnd();
parser.Close();
// Not owned reader should remain open after closing parser.
Assert.AreEqual(-1, reader.Peek());
reader.Close();
}
public void VariableLengthField()
{
string newLine = "\r\n";
string text = "01732Juan Perez [email protected]" + newLine +
"02310Guillermo Diez [email protected]";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 15, 0);
parser.TrimWhiteSpace = true;
Assert.AreEqual("01732:Juan Perez:[email protected]", parser.ReadFields().ToString(":"));
Assert.AreEqual("02310:Guillermo Diez:[email protected]", parser.ReadFields().ToString(":"));
}
}
}
public void CanReadTypedFields()
{
string text = "01732Juan Perez 0100.0011/05/2002";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 15, 7, 10);
parser.TrimWhiteSpace = true;
TextFields fields = parser.ReadFields();
Assert.AreEqual(1732, fields.GetInt32(0));
Assert.AreEqual("Juan Perez", fields.GetString(1));
Assert.AreEqual(100.0f, fields.GetSingle(2));
Assert.AreEqual(new DateTime(2002, 11, 05), fields.GetDateTime(3));
}
}
}
public void AllCommentedLines()
{
string newLine = "\r\n";
string text = "# 01732Juan Perez [email protected]" + newLine +
"# 02310Guillermo Diez [email protected]";
using (StringReader reader = new StringReader(text))
{
using (FixedWidthFieldParser parser = new FixedWidthFieldParser(reader))
{
parser.SetFieldWidths(5, 15, 0);
parser.TrimWhiteSpace = true;
parser.SetCommentTokens("#");
Assert.IsFalse(parser.EndOfFile);
string line = parser.ReadLine();
Assert.IsNull(line);
Assert.IsTrue(parser.EndOfFile);
}
}
}
