public void ReadCountersFromFile_ParsesTextCorrectly()
{
StringBuilder text = new StringBuilder();
string filePath = Path.GetTempFileName();
try
{
for (int i = 0; i < 255; i++)
{
string line = (i % 16 == 0) ? "#foo" :
(i % 50 == 0) ? string.Empty : ("foo" + string.Join(string.Empty, Enumerable.Repeat("a", i)));
text.AppendLine(line);
}
File.WriteAllText(filePath, text.ToString());
var lines = CounterFileParser.ReadCountersFromFile(filePath);
Assert.Equal(255 - (256 / 16) - (256 / 50), lines.Count);
}
finally
{
File.Delete(filePath);
}
}
public void ReadCountersFromFile_IgnoresDuplicates()
{
StringBuilder text = new StringBuilder();
string filePath = Path.GetTempFileName();
try
{
for (int i = 0; i < 255; i++)
{
string line = (i % 16 == 0) ? "#foo" :
(i % 7 == 0) ? string.Empty : "foo";
text.AppendLine(line);
}
File.WriteAllText(filePath, text.ToString());
var lines = CounterFileParser.ReadCountersFromFile(filePath);
Assert.Equal(1, lines.Count);
}
finally
{
File.Delete(filePath);
}
}
public void ReadCountersFromFile_StripsLeadingAndTrailingWhitespace()
{
StringBuilder text = new StringBuilder();
string filePath = Path.GetTempFileName();
try
{
text.AppendLine(" foo");
text.AppendLine("bar\t");
text.AppendLine(" \tfubar\t ");
File.WriteAllText(filePath, text.ToString());
var lines = CounterFileParser.ReadCountersFromFile(filePath);
Assert.Empty(lines.Except(new [] { "foo", "bar", "fubar" }));
}
finally
{
File.Delete(filePath);
}
}
