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Full Document Test Cases

The input folder contains test cases for KDL parsers. The expected_kdl folder contains files with the same name as those in input with the expected output after being run through the parser and printed out again. If there's no file in expected_kdl with a name corresponding to one in input it indicates that parsing for that case should fail.

Translation Rules

By necessity, the files in expected_kdl are not identical to their corresponding inputs. They are instead pretty-printed according to the following rules:

  • All comments removed
  • Extra empty lines removed except for a newline after the last node
  • All nodes should be reformatted without escaped newlines
  • Node fields should be identifier <values> <properties> <children only if non-empty>
  • All values and all children must be in the same order as they were defined.
  • Properties must be in alphabetical order and separated by a single space.
  • All strings must be represented as regular strings, with appropriate escapes for invalid bare characters. That means that raw strings must be converted to plain strings, and escaped.
  • Any literal newlines or other ascii escape characters in escaped strings replaced with their escape sequences.
  • All identifiers must be unquoted unless they must be quoted. That means "foo" becomes foo, and "foo bar" stays that way.
  • Any duplicate properties must be removed, with only the rightmost one remaining. This also means duplicate properties must be allowed.
  • 4 space indents
  • All numbers must be converted to their simplest decimal representation. That means that hex, octal, and binary must all be converted to decimals. All floats must be represented using E notation, with a single digit left of the decimal point if the float is less than 1. While parsers are required to consume different number syntaxes, they are under no obligation to represent numbers in any particular way.

Data may be manipulated as you wish in order to output the expected KDL. This test suite verifies the ability to parse, not specific quirks about internal representations.

What to do if a test fails for you

This test suite was originally designed for a pre-1.0 version of the KDL specification. If you encounter a failure, it's likely that the test suite will need to be updated, rather than your parser itself. This test suite is NOT AUTHORITATIVE. If this test suite disagrees with the KDL spec in any way, the most desirable resolution is to send a PR to this repository to fix the test itself. Likewise, if you think a test succeeded but should not have, please send a PR.

If you think the disagreement is due to a genuine error or oversight in the KDL specification, please open an issue explaining the matter and the change will be considered for the next version of the KDL spec.