public void When_reading_file_with_large_Lines_and_small_buffer_matches_result_of_streamreader()
{
var filename = $"{this.GetDataDirectory()}\\data\\LargeLineFile.txt";
var sw = new Stopwatch();
sw.Start();
using (var fileStreamEx = new FileStreamEx(filename, 1000))
{
fileStreamEx.ReadLine();
fileStreamEx.ReadLine();
Action a = () => fileStreamEx.ReadLine();
a.ShouldThrow<ArgumentException>();
}
sw.Stop();
Console.WriteLine("Time: " + sw.ElapsedMilliseconds);
}
public void When_reading_file_with_medium_Lines_and_large_buffer_matches_result_of_streamreader()
{
var filename = $"{this.GetDataDirectory()}\\data\\MediumLineFile.txt";
var sw = new Stopwatch();
sw.Start();
using (var fileStreamEx = new FileStreamEx(filename))
{
using (var streamEx = new StreamReader(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var streamText = streamEx.ReadLine();
var fileStreamText = line.Text;
streamText.ShouldBeEquivalentTo(fileStreamText);
}
}
}
sw.Stop();
Console.WriteLine("Time: " + sw.ElapsedMilliseconds);
}
public void When_checking_line_contains_characters_false_is_returned_if_they_do_not()
{
var filename = $"{this.GetDataDirectory()}\\data\\SingleLine.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var actual = line.Contains('Y');
actual.Should().BeFalse();
}
}
}
public void When_checking_line_IsNullOrEmpty_true_is_returned_if_line_does_not_contain_characters_other_than_spaces()
{
var filename = $"{this.GetDataDirectory()}\\data\\ThreeLinesWIthSeondEmpty.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
line = fileStreamEx.ReadLine(); // Not Empty
line = fileStreamEx.ReadLine(); // Empty
var actual = line.IsNullOrEmpty();
actual.Should().BeTrue();
}
}
public void When_stripping_characters_from_a_line_the_characters_are_removed()
{
var filename = $"{this.GetDataDirectory()}\\data\\SingleLine.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var newLine = line.Strip(' ', '.');
var expected = line.Text.Replace(" ", "").Replace(".", "");
expected.ShouldBeEquivalentTo(newLine.Text);
}
}
}
public void When_checking_end_of_a_line_returns_false_if_line_does_not_end_with_character_supplied()
{
var filename = $"{this.GetDataDirectory()}\\data\\SingleLine.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var found = line.EndsWith('Z');
found.Should().BeFalse();
}
}
}
public void When_checking_start_of_a_line_returns_true_if_line_starts_with_character_supplied()
{
var filename = $"{this.GetDataDirectory()}\\data\\SingleLineEndingWithSpace.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var found = line.StartsWith('T');
found.Should().BeTrue();
}
}
}
public void When_splitting_a_line_with_that_does_not_have_the_seperator_returns_a_single_item_array_of_Line_objects()
{
var filename = $"{this.GetDataDirectory()}\\data\\ThreeLinesWIthSeondEmpty.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var expectedParts = line.Text.Split('\t');
var columns = line.Split('\t');
columns.Count.Should().Be(expectedParts.Length);
for (int i = 0; i < expectedParts.Length; i++)
{
columns[i].Text.ShouldBeEquivalentTo(expectedParts[i]);
}
}
}
}
public void When_splitting_a_line_with_seperator_at_end_of_line_returns_an_array_of_Line_objects()
{
var filename = $"{this.GetDataDirectory()}\\data\\SingleLineEndingWithSpace.txt";
using (var fileStreamEx = new FileStreamEx(filename))
{
Line line;
while ((line = fileStreamEx.ReadLine()) != null)
{
var expectedParts = line.Text.Split(' ');
var columns = line.Split(' ');
columns.Count.Should().Be(expectedParts.Length);
for (int i = 0; i < expectedParts.Length; i++)
{
columns[i].Text.ShouldBeEquivalentTo(expectedParts[i]);
}
}
}
}