Add some test cases for tinycss2 code coverage.

Author: SimonSapin

An+B.json

@@ -54,12 +54,15 @@
 "- 14N-1 ", null,
 "3.1n-1", null,
 "3 n-1", null,
+"3n-1foo", null,
 
 "  n-1", [1, -1],
 " +n-1", [1, -1],
 " -n-1", [-1, -1],
 "+ n-1", null,
 "- n-1", null,
+" +n-1foo", null,
+" -n-1foo", null,
 
 
 "3N +1", [3, 1],
@@ -69,6 +72,8 @@
 "- 14n +1 ", null,
 "3.1N +1", null,
 "3 n +1", null,
+"3n foo", null,
+"3n + foo", null,
 
 "  n +1", [1, 1],
 " +N +1", [1, 1],

component_value_list.json

@@ -22,7 +22,8 @@
 	["ident", "red--"], ">"
 ],
 
-"red0 -red --red -\\-red\\ blue 0red -0red \u0000red _Red .red rêd r\\êd \u007F\u0080\u0081", [
+"\\- red0 -red --red -\\-red\\ blue 0red -0red \u0000red _Red .red rêd r\\êd \u007F\u0080\u0081", [
+	["ident", "-"], " ",
 	["ident", "red0"], " ",
 	["ident", "-red"], " ",
 	["ident", "--red"], " ",

declaration_list.json

@@ -17,6 +17,11 @@
     ["declaration", "a", [["ident", "b"]], false]
 ],
 
+"a:b; c+:d", [
+    ["declaration", "a", [["ident", "b"]], false],
+    ["error", "invalid"]
+],
+
 "@import 'foo.css'; a:b; @import 'bar.css'", [
     ["at-rule", "import", [" ", ["string", "foo.css"]], null],
     ["declaration", "a", [["ident", "b"]], false],

stylesheet_bytes.json

@@ -63,6 +63,12 @@
   ["at-rule", "�", [], null]],
  "utf-8"],
 
+{"css_bytes": "@charset \"ISO-8859-5\" ; @\u00E9",
+ "comment": "@charset has to match an exact byte pattern"},
+[[["at-rule", "charset", [" ", ["string", "ISO-8859-5"], " "], null],
+  ["at-rule", "�", [], null]],
+ "utf-8"],
+
 
 {"css_bytes": "@\u0000c\u0000h\u0000a\u0000r\u0000s\u0000e\u0000t\u0000 \u0000\"\u0000U\u0000T\u0000F\u0000-\u00001\u00006\u0000L\u0000E\u0000\"\u0000;\u0000@\u0000\u00e9\u0000",
  "comment": "@charset has to be ASCII-compatible itself"},
@@ -97,6 +103,13 @@
   ["at-rule", "é", [], null]],
  "iso-8859-2"],
 
+{"css_bytes": "@charset \"ISO-8859-5\"; @\u00E9",
+ "protocol_encoding": "kamoulox",
+ "comment": "Unknow protocol encoding falls back to @charset"},
+[[["at-rule", "charset", [" ", ["string", "ISO-8859-5"]], null],
+  ["at-rule", "щ", [], null]],
+ "iso-8859-5"],
+
 
 {"css_bytes": "@\u00E9", "environment_encoding": "ISO-8859-2"},
 [[["at-rule", "é", [], null]], "iso-8859-2"],
@@ -111,6 +124,13 @@
   ["at-rule", "щ", [], null]],
  "iso-8859-5"],
 
+{"css_bytes": "@charset \"kamoulox\"; @\u00E9",
+ "environment_encoding": "ISO-8859-2",
+ "comment": "@character with unknown encoding falls back to environment encoding"},
+[[["at-rule", "charset", [" ", ["string", "kamoulox"]], null],
+  ["at-rule", "é", [], null]],
+ "iso-8859-2"],
+
 {"css_bytes": "@\u00E9",
  "protocol_encoding": "ISO-8859-2",
  "environment_encoding": "ISO-8859-5",