public void FixedWidthInputTest()
{
#region Setup
FixedWidthColumnReader reader = new FixedWidthColumnReader();
string filename = Path.Combine(InputDirectory, InputFile);
reader.LoadFile(filename);
var expectedStrings = new List<string[]>();
var expectedObjects = new List<object[]>();
var fields = new List<List<FixedWidthField>>();
List<FixedWidthField> row;
FixedWidthField temp, template;
/***********************************************************************************
* First row tests Seeker = FROM_START, Terminator = LENGTH, types int and float
* Data = "this is some text25 13373.133712/20/18342:32 PM12 November 1978 15:38:24"
***********************************************************************************/
expectedStrings.Add(new string[] {
"this is some text25 ",
"1337",
"3.1337",
"12/20/1834",
"2:32 PM",
"12 November 1978 15:38:24"
});
expectedObjects.Add(new object[] {
"this is some text25 ",
(int)1337,
(float)3.1337,
DateTime.Parse("12/20/1834"),
DateTime.Parse("2:32 PM"),
DateTime.Parse("12 November 1978 15:38:24")
});
row = new List<FixedWidthField>();
template = temp = new FixedWidthField(0, 25, FixedWidthTypes.STRING, FixedWidthPositions.FROM_START, FixedWidthTerminators.LENGTH);
row.Add(temp);
temp = new FixedWidthField(template);
temp.Start = 25;
temp.End = 4;
temp.Type = FixedWidthTypes.INT;
row.Add(temp);
temp = new FixedWidthField(template);
temp.Start = 29;
temp.End = 6;
temp.Type = FixedWidthTypes.FLOAT;
row.Add(temp);
temp = new FixedWidthField(template);
temp.Start = 35;
temp.End = 10;
temp.Type = FixedWidthTypes.DATETIME;
row.Add(temp);
temp = new FixedWidthField(template);
temp.Start = 45;
temp.End = 7;
temp.Type = FixedWidthTypes.DATETIME;
row.Add(temp);
temp = new FixedWidthField(template);
temp.Start = 52;
temp.End = 25;
temp.Type = FixedWidthTypes.DATETIME;
row.Add(temp);
fields.Add(row);
row = new List<FixedWidthField>();
/****************************************************************************************/
/***********************************************************************************
* Second row tests Seeker = FROM_CURRENT, otherwise same as first
* Data = "this is some text25 13373.133712/20/18342:32 PM12 November 1978 15:38:24"
**********************************************************************************/
expectedStrings.Add(expectedStrings[0]);
expectedObjects.Add(expectedObjects[0]);
foreach (FixedWidthField f in fields[0])
{
temp = new FixedWidthField(f);
temp.Seeker = FixedWidthPositions.FROM_CURRENT;
temp.Start = 0;
row.Add(temp);
}
fields.Add(row);
row = new List<FixedWidthField>();
/****************************************************************************************/
/***********************************************************************************
* Third row tests Seeker = FROM_START, Terminator = INDEX, types long and double
* Data = "this is some text25 13373.133712/20/18342:32 PM12 November 1978 15:38:24"
**********************************************************************************/
expectedStrings.Add(expectedStrings[0]);
expectedObjects.Add(new object[] {
"this is some text25 ",
(long)1337,
(double)3.1337,
DateTime.Parse("12/20/1834"),
DateTime.Parse("2:32 PM"),
DateTime.Parse("12 November 1978 15:38:24")
});
foreach (FixedWidthField f in fields[0])
{
temp = new FixedWidthField(f);
temp.Terminator = FixedWidthTerminators.INDEX;
//Used to be start index and length, converting to start index and end index
temp.End = temp.Start + temp.End;
if (temp.Type == FixedWidthTypes.FLOAT) temp.Type = FixedWidthTypes.DOUBLE;
if (temp.Type == FixedWidthTypes.INT) temp.Type = FixedWidthTypes.LONG;
row.Add(temp);
}
fields.Add(row);
row = new List<FixedWidthField>();
/****************************************************************************************/
/***********************************************************************************
* Fourth row tests Seeker = FROM_END, Terminator = NEWLINE, and overlapping records
* Data = "0123456789"
**********************************************************************************/
expectedStrings.Add(new string[] { "34", "0123456789" });
expectedObjects.Add(expectedStrings[expectedStrings.Count - 1] as object[]);
row.Add(new FixedWidthField(7, 2, FixedWidthTypes.STRING, FixedWidthPositions.FROM_END, FixedWidthTerminators.LENGTH));
row.Add(new FixedWidthField(0, 43847283, FixedWidthTypes.STRING, FixedWidthPositions.FROM_START, FixedWidthTerminators.NEWLINE));
fields.Add(row);
row = null;
/****************************************************************************************/
#endregion Setup
Assert.AreEqual(expectedObjects.Count, expectedStrings.Count);
Assert.AreEqual(expectedObjects.Count, fields.Count);
//eString and eObject refer to the same object!
var eObject = (reader as IEnumerable).GetEnumerator();
var eString = eObject as IEnumerator<List<string>>;
int count = expectedObjects.Count;
for (int i = 0; i < count; i++)
{
if (!eString.MoveNext())
{
Assert.Fail("Ran out of lines in input file {0}", InputFile);
}
reader.Columns = fields[i];
List<string> myRowStrings = eString.Current;
List<object> myRowObjects = eObject.Current as List<object>;
//Make sure same number of elements for current row in myRowStrings, myRowObjects,
//expectedObjects[i], expectedStrings[i], and fields[i]
Assert.AreEqual(myRowStrings.Count, myRowObjects.Count);
Assert.AreEqual(myRowObjects.Count, expectedObjects[i].Count());
Assert.AreEqual(expectedObjects[i].Count(), expectedStrings[i].Count());
Assert.AreEqual(expectedStrings[i].Count(), fields[i].Count());
int fieldCount = myRowStrings.Count;
for (int j = 0; j < fieldCount; j++)
{
Assert.AreEqual(expectedObjects[i][j], myRowObjects[j]);
Assert.AreEqual(expectedStrings[i][j], myRowStrings[j]);
}
}
}
