Test parsing of the CSS3 font-feature-settings property.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".

- Tests valid inputs.
PASS parseResultOf("valid_normal") is "normal"
PASS parseResultOf("valid_value_1") is "\"dlig\""
PASS parseResultOf("valid_value_2") is "\"swsh\" 2"
PASS parseResultOf("valid_value_on") is "\"smcp\""
PASS parseResultOf("valid_value_off") is "\"liga\" 0"
PASS parseResultOf("valid_value_omit") is "\"c2sc\""
PASS parseResultOf("valid_valuelist") is "\"tnum\", \"hist\""
PASS parseResultOf("valid_singlequote") is "\"PKRN\""
PASS parseResultOf("valid_unusual_tag") is "\"!@#$\""
PASS parseResultOf("valid_tag_space") is "\"a bc\""
PASS parseResultOf("valid_composite") is "\"dlig\", \"smcp\", \"lig \" 0"
- Tests invalid inputs.  Results should be "normal".
PASS parseResultOf("invalid_ident") is "normal"
PASS parseResultOf("invalid_cases") is "normal"
PASS parseResultOf("invalid_1") is "normal"
PASS parseResultOf("invalid_off") is "normal"
PASS parseResultOf("invalid_normal_duplicate") is "normal"
PASS parseResultOf("invalid_normal_list") is "normal"
PASS parseResultOf("invalid_longer_ident") is "normal"
PASS parseResultOf("invalid_longer_quote") is "normal"
PASS parseResultOf("invalid_negative") is "normal"
PASS parseResultOf("invalid_float") is "normal"
PASS parseResultOf("invalid_missing_comma") is "normal"
PASS parseResultOf("invalid_missing_comma_ident") is "normal"
PASS parseResultOf("invalid_comma") is "normal"
PASS parseResultOf("invalid_ending_comma") is "normal"
PASS parseResultOf("invalid_beginning_comma") is "normal"
PASS parseResultOf("invalid_on") is "normal"
PASS parseResultOf("invalid_0") is "normal"
- Tests inherit.
PASS parseResultOf("outer") is "\"dlig\""
PASS parseResultOf("inner") is "\"dlig\""
- Tests @font-face.
PASS fontFaceRuleValid is "\"liga\""
PASS fontFaceRuleInvalid is ""
PASS successfullyParsed is true

TEST COMPLETE