public void FindEntry_should_return_null_when_the_requested_entry_does_not_exist()
{
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry("eastwind.world");
Assert.IsNull(foundEntry);
}
public void FindEntry_should_only_ecognize_entry_names_that_start_in_the_first_column_of_a_new_line()
{
string textThatIsInTheFileButNotAnEntryName = "CONNECT_DATA";
StringAssert.Contains(textThatIsInTheFileButNotAnEntryName, AddTnsNameTest.SAMPLE_FILE);
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(textThatIsInTheFileButNotAnEntryName);
Assert.IsNull(foundEntry);
}
public void FindEntry_should_return_position_of_the_requested_entry_when_it_does_exist()
{
string entryName = "SOUTHWIND.WORLD";
int startPosition = AddTnsNameTest.SAMPLE_FILE.IndexOf(entryName);
Assert.IsTrue(startPosition >= 0, "Entry should exist in sample file.");
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(entryName);
Assert.AreEqual(startPosition, foundEntry.StartPosition);
}
public void FindEntry_should_return_length_of_the_found_entry_definition()
{
string entryName = "SOUTHWIND.WORLD";
const int LENGTH_OF_SOUTHWIND_DEFINITION = 189; // this corresponds to the text of SAMPLE_FILE
int startPosition = AddTnsNameTest.SAMPLE_FILE.IndexOf(entryName);
Assert.IsTrue(startPosition >= 0, "Entry should exist in sample file.");
TnsParser parser = new TnsParser(AddTnsNameTest.SAMPLE_FILE);
TnsEntry foundEntry = parser.FindEntry(entryName);
Assert.AreEqual(LENGTH_OF_SOUTHWIND_DEFINITION, foundEntry.Length);
}
public List <TnsEntry> Parse(string TNSNamesContents)
{
string TNSPattern = @"([\w -] +)\s *= (?:\s |.) +?\)\s *\)\s *\)\s * ((?=[\w\-])|(?=$))";
Regex reTns = new Regex(TNSPattern, RegexOptions.Singleline | RegexOptions.IgnorePatternWhitespace);
MatchCollection matchCollection = reTns.Matches(TNSNamesContents);
var TnsEntries = new List <TnsEntry>();
foreach (Match match in matchCollection)
{
var tnsEntry = new TnsEntry();
string matchedValue = match.Value.Trim();
tnsEntry.Name = Regex.Match(matchedValue, @"^([^\s]+)", RegexOptions.IgnoreCase)?.Value.Trim();
tnsEntry.Host = Regex.Match(matchedValue, "(?<=HOST.+=) ([^)]*)", RegexOptions.IgnoreCase)?.Value.Trim();
tnsEntry.Port = Regex.Match(matchedValue, "(?<=PORT.+=) ([^)]*)", RegexOptions.IgnoreCase)?.Value.Trim();
tnsEntry.ServiceName = Regex.Match(matchedValue, "(?<=SERVICE_NAME.+=) ([^)]*)", RegexOptions.IgnoreCase)?.Value;
TnsEntries.Add(tnsEntry);
}
return(TnsEntries);
}
