public void FailsIfFileNotFound()
{
string fileName = Path.GetTempFileName();
File.Delete(fileName);
DelimitedFieldParser parser = new DelimitedFieldParser(fileName);
}
public void CanDetectEndOfData()
{
using (StringReader reader = new StringReader(string.Empty))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
Assert.IsTrue(parser.EndOfFile);
}
}
}
public void DelimitersCannotBeNull()
{
using (StringReader reader = new StringReader(string.Empty))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(null);
}
}
}
public void CanParseSingleField()
{
string text = "record 1";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
Assert.AreEqual("record 1", parser.ReadFields().ToString(string.Empty));
}
}
}
public void LastFieldIsEmpty()
{
string text = "a,bb,ccc,";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
Assert.AreEqual("a|bb|ccc|", parser.ReadFields().ToString("|"));
}
}
}
public void MultipleDelimiters()
{
string text = "a bb\tccc\tdddd";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(' ', '\t');
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
}
}
}
public void FailsIfExpectedDelimiterNotFound()
{
string text = "a,\"bb\"ccc";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.HasFieldsEnclosedInQuotes = true;
parser.ReadFields();
}
}
}
public void FailsIfUnmatchedQuotes()
{
string text = "\"aaa";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.HasFieldsEnclosedInQuotes = true;
Assert.AreEqual("aaa", parser.ReadFields().ToString("|"));
}
}
}
public void QuotedFieldIsEmpty()
{
string text = "a,bb,ccc,\"\",eeee";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.HasFieldsEnclosedInQuotes = true;
Assert.AreEqual("a|bb|ccc||eeee", parser.ReadFields().ToString("|"));
}
}
}
public void CanParseQuotedFields()
{
string text = "a,\"bb\",ccc";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.HasFieldsEnclosedInQuotes = true;
Assert.AreEqual("a|bb|ccc", parser.ReadFields().ToString("|"));
}
}
}
public void CanSqueezeDelimiters()
{
string text = "a bb ccc dddd";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(' ');
parser.SqueezeDelimiters = true;
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
}
}
}
public void DefaultPropertiesTest()
{
using (StringReader reader = new StringReader(string.Empty))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
Assert.IsFalse(parser.HasFieldsEnclosedInQuotes);
Assert.IsFalse(parser.IgnoreBlankLines);
Assert.IsFalse(parser.SqueezeDelimiters);
Assert.IsFalse(parser.TrimWhiteSpace);
Assert.AreEqual(0, parser.LineNumber);
}
}
}
public void CanTreatQuotesAsNormalChars()
{
string text = "Michael \"Magic\" Jordan";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.HasFieldsEnclosedInQuotes = false;
TextFields fields = parser.ReadFields();
Assert.AreEqual(1, fields.Count);
Assert.AreEqual(text, fields[0]);
}
}
}
public void CanParseMultipleFields()
{
string newLine = "\r\n";
string text = "a;bb;ccc;dddd" + newLine + "111;22;3";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(';');
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
Assert.AreEqual("111:22:3", parser.ReadFields().ToString(":"));
}
}
}
public void CanHandleUnixStyleNewLine()
{
string newLine = "\n";
string text = "a;bb;ccc;dddd" + newLine + "e;ff;ggg;hhhh";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(';');
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
Assert.AreEqual("e:ff:ggg:hhhh", parser.ReadFields().ToString(":"));
}
}
}
public void CanSkipCommentedLines()
{
string newLine = "\r\n";
string text = "#Comment line" + newLine + "a;bb;ccc;dddd";
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(';');
parser.SetCommentTokens("#");
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
}
}
}
public void DelimitersTest()
{
using (StringReader reader = new StringReader(string.Empty))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
char[] delimiters = { ',', ';' };
parser.SetDelimiters(delimiters);
delimiters[0] = '\t';
Assert.AreNotEqual('\t', parser.GetDelimiters()[0]);
}
}
}
public void ReaderRemainsOpen()
{
string text = "record 1";
StringReader reader = new StringReader(text);
DelimitedFieldParser parser = new DelimitedFieldParser(reader);
parser.ReadToEnd();
parser.Close();
// Not owned reader should remain open after closing parser.
Assert.AreEqual(-1, reader.Peek());
reader.Close();
}
public void CanTrimWhiteSpace()
{
string newLine = "\r\n";
string text = "a;bb ; ccc; dddd " + newLine;
using (StringReader reader = new StringReader(text))
{
using (DelimitedFieldParser parser = new DelimitedFieldParser(reader))
{
parser.SetDelimiters(';');
parser.TrimWhiteSpace = true;
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
}
}
}
public void CanReadFromFile()
{
string textFile = Path.GetTempFileName();
try
{
using (StreamWriter writer = new StreamWriter(textFile, false))
{
writer.WriteLine("a,bb,ccc,dddd");
}
using (DelimitedFieldParser parser = new DelimitedFieldParser(textFile))
{
parser.SetDelimiters(',');
Assert.AreEqual("a:bb:ccc:dddd", parser.ReadFields().ToString(":"));
}
}
finally
{
File.Delete(textFile);
}
}
