diff --git a/tests/cts.json b/tests/cts.json
index f4f27b2..ee6afd3 100644
--- a/tests/cts.json
+++ b/tests/cts.json
@@ -43,423 +43,423 @@
     "selector": "$.*.a",
     "document": {"x": {"a" : "Ax", "b" : "Bx"}, "y": {"a" : "Ay", "b" : "By"}},
     "result": ["Ax", "Ay"]
-    }, {
-      "name": "union child, double quotes",
-      "selector": "$[\"a\"]",
-      "document": {"a" : "A", "b" : "B"},
-      "result": ["A"]
-    }, {
-      "name": "union child absent, double quotes",
-      "selector": "$[\"c\"]",
-      "document": {"a" : "A", "b" : "B"},
-      "result": []
-    }, {
-      "name": "union child of array, double quotes",
-      "selector": "$[\"a\"]",
-      "document": ["first", "second"],
-      "result": []
-    }, {
-      "name": "union child, double quotes, embedded U+0000",
-      "selector": "$[\"\u0000\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0001",
-      "selector": "$[\"\u0001\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0002",
-      "selector": "$[\"\u0002\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0003",
-      "selector": "$[\"\u0003\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0004",
-      "selector": "$[\"\u0004\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0005",
-      "selector": "$[\"\u0005\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0006",
-      "selector": "$[\"\u0006\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0007",
-      "selector": "$[\"\u0007\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0008",
-      "selector": "$[\"\u0008\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0009",
-      "selector": "$[\"\u0009\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000A",
-      "selector": "$[\"\u000A\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000B",
-      "selector": "$[\"\u000B\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000C",
-      "selector": "$[\"\u000C\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000D",
-      "selector": "$[\"\u000D\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000E",
-      "selector": "$[\"\u000E\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+000F",
-      "selector": "$[\"\u000F\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0010",
-      "selector": "$[\"\u0010\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0011",
-      "selector": "$[\"\u0011\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0012",
-      "selector": "$[\"\u0012\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0013",
-      "selector": "$[\"\u0013\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0014",
-      "selector": "$[\"\u0014\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0015",
-      "selector": "$[\"\u0015\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0016",
-      "selector": "$[\"\u0016\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0017",
-      "selector": "$[\"\u0017\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0018",
-      "selector": "$[\"\u0018\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0019",
-      "selector": "$[\"\u0019\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001A",
-      "selector": "$[\"\u001A\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001B",
-      "selector": "$[\"\u001B\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001C",
-      "selector": "$[\"\u001C\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001D",
-      "selector": "$[\"\u001D\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001E",
-      "selector": "$[\"\u001E\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+001F",
-      "selector": "$[\"\u001F\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded U+0020",
-      "selector": "$[\"\u0020\"]",
-      "document": {"\u0020" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped double quote",
-      "selector": "$[\"\\\"\"]",
-      "document": {"\"" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped reverse solidus",
-      "selector": "$[\"\\\\\"]",
-      "document": {"\\" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped solidus",
-      "selector": "$[\"\\/\"]",
-      "document": {"/" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped backspace",
-      "selector": "$[\"\\b\"]",
-      "document": {"\u0008" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped form feed",
-      "selector": "$[\"\\f\"]",
-      "document": {"\u000C" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped line feed",
-      "selector": "$[\"\\n\"]",
-      "document": {"\u000A" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped carriage return",
-      "selector": "$[\"\\r\"]",
-      "document": {"\u000D" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped tab",
-      "selector": "$[\"\\t\"]",
-      "document": {"\u0009" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, escaped ☺",
-      "selector": "$[\"\\u263A\"]",
-      "document": {"☺" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, double quotes, invalid escaped ☺",
-      "selector": "$[\"\\u263a\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, invalid escaped single quote",
-      "selector": "$[\"\\'\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, embedded double quote",
-      "selector": "$[\"\"\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, double quotes, incomplete escape",
-      "selector": "$[\"\\\"]",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes",
-      "selector": "$['a']",
-      "document": {"a" : "A", "b" : "B"},
-      "result": ["A"]
-    }, {
-      "name": "union child absent, single quotes",
-      "selector": "$['c']",
-      "document": {"a" : "A", "b" : "B"},
-      "result": []
-    }, {
-      "name": "union child of array, single quotes",
-      "selector": "$['a']",
-      "document": ["first", "second"],
-      "result": []
-    }, {
-      "name": "union child, single quotes, embedded U+0000",
-      "selector": "$['\u0000']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0001",
-      "selector": "$['\u0001']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0002",
-      "selector": "$['\u0002']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0003",
-      "selector": "$['\u0003']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0004",
-      "selector": "$['\u0004']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0005",
-      "selector": "$['\u0005']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0006",
-      "selector": "$['\u0006']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0007",
-      "selector": "$['\u0007']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0008",
-      "selector": "$['\u0008']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0009",
-      "selector": "$['\u0009']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000A",
-      "selector": "$['\u000A']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000B",
-      "selector": "$['\u000B']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000C",
-      "selector": "$['\u000C']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000D",
-      "selector": "$['\u000D']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000E",
-      "selector": "$['\u000E']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+000F",
-      "selector": "$['\u000F']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0010",
-      "selector": "$['\u0010']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0011",
-      "selector": "$['\u0011']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0012",
-      "selector": "$['\u0012']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0013",
-      "selector": "$['\u0013']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0014",
-      "selector": "$['\u0014']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0015",
-      "selector": "$['\u0015']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0016",
-      "selector": "$['\u0016']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0017",
-      "selector": "$['\u0017']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0018",
-      "selector": "$['\u0018']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0019",
-      "selector": "$['\u0019']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001A",
-      "selector": "$['\u001A']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001B",
-      "selector": "$['\u001B']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001C",
-      "selector": "$['\u001C']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001D",
-      "selector": "$['\u001D']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001E",
-      "selector": "$['\u001E']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+001F",
-      "selector": "$['\u001F']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded U+0020",
-      "selector": "$['\u0020']",
-      "document": {"\u0020" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped single quote",
-      "selector": "$['\\'']",
-      "document": {"'" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped reverse solidus",
-      "selector": "$['\\\\']",
-      "document": {"\\" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped solidus",
-      "selector": "$['\\/']",
-      "document": {"/" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped backspace",
-      "selector": "$['\\b']",
-      "document": {"\u0008" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped form feed",
-      "selector": "$['\\f']",
-      "document": {"\u000C" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped line feed",
-      "selector": "$['\\n']",
-      "document": {"\u000A" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped carriage return",
-      "selector": "$['\\r']",
-      "document": {"\u000D" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped tab",
-      "selector": "$['\\t']",
-      "document": {"\u0009" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, escaped ☺",
-      "selector": "$['\\u263A']",
-      "document": {"☺" : "A"},
-      "result": ["A"]
-    }, {
-      "name": "union child, single quotes, invalid escaped ☺",
-      "selector": "$['\\u263a']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, invalid escaped double quote",
-      "selector": "$['\\\"']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, embedded single quote",
-      "selector": "$[''']",
-      "invalid_selector": true
-    }, {
-      "name": "union child, single quotes, incomplete escape",
-      "selector": "$['\\']",
-      "invalid_selector": true
-    }
+  }, {
+    "name": "union child, double quotes",
+    "selector": "$[\"a\"]",
+    "document": {"a" : "A", "b" : "B"},
+    "result": ["A"]
+  }, {
+    "name": "union child absent, double quotes",
+    "selector": "$[\"c\"]",
+    "document": {"a" : "A", "b" : "B"},
+    "result": []
+  }, {
+    "name": "union child of array, double quotes",
+    "selector": "$[\"a\"]",
+    "document": ["first", "second"],
+    "result": []
+  }, {
+    "name": "union child, double quotes, embedded U+0000",
+    "selector": "$[\"\u0000\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0001",
+    "selector": "$[\"\u0001\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0002",
+    "selector": "$[\"\u0002\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0003",
+    "selector": "$[\"\u0003\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0004",
+    "selector": "$[\"\u0004\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0005",
+    "selector": "$[\"\u0005\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0006",
+    "selector": "$[\"\u0006\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0007",
+    "selector": "$[\"\u0007\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0008",
+    "selector": "$[\"\u0008\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0009",
+    "selector": "$[\"\u0009\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000A",
+    "selector": "$[\"\u000A\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000B",
+    "selector": "$[\"\u000B\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000C",
+    "selector": "$[\"\u000C\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000D",
+    "selector": "$[\"\u000D\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000E",
+    "selector": "$[\"\u000E\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+000F",
+    "selector": "$[\"\u000F\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0010",
+    "selector": "$[\"\u0010\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0011",
+    "selector": "$[\"\u0011\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0012",
+    "selector": "$[\"\u0012\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0013",
+    "selector": "$[\"\u0013\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0014",
+    "selector": "$[\"\u0014\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0015",
+    "selector": "$[\"\u0015\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0016",
+    "selector": "$[\"\u0016\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0017",
+    "selector": "$[\"\u0017\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0018",
+    "selector": "$[\"\u0018\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0019",
+    "selector": "$[\"\u0019\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001A",
+    "selector": "$[\"\u001A\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001B",
+    "selector": "$[\"\u001B\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001C",
+    "selector": "$[\"\u001C\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001D",
+    "selector": "$[\"\u001D\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001E",
+    "selector": "$[\"\u001E\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+001F",
+    "selector": "$[\"\u001F\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded U+0020",
+    "selector": "$[\"\u0020\"]",
+    "document": {"\u0020" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped double quote",
+    "selector": "$[\"\\\"\"]",
+    "document": {"\"" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped reverse solidus",
+    "selector": "$[\"\\\\\"]",
+    "document": {"\\" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped solidus",
+    "selector": "$[\"\\/\"]",
+    "document": {"/" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped backspace",
+    "selector": "$[\"\\b\"]",
+    "document": {"\u0008" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped form feed",
+    "selector": "$[\"\\f\"]",
+    "document": {"\u000C" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped line feed",
+    "selector": "$[\"\\n\"]",
+    "document": {"\u000A" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped carriage return",
+    "selector": "$[\"\\r\"]",
+    "document": {"\u000D" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped tab",
+    "selector": "$[\"\\t\"]",
+    "document": {"\u0009" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, escaped ☺",
+    "selector": "$[\"\\u263A\"]",
+    "document": {"☺" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, double quotes, invalid escaped ☺",
+    "selector": "$[\"\\u263a\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, invalid escaped single quote",
+    "selector": "$[\"\\'\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, embedded double quote",
+    "selector": "$[\"\"\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, double quotes, incomplete escape",
+    "selector": "$[\"\\\"]",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes",
+    "selector": "$['a']",
+    "document": {"a" : "A", "b" : "B"},
+    "result": ["A"]
+  }, {
+    "name": "union child absent, single quotes",
+    "selector": "$['c']",
+    "document": {"a" : "A", "b" : "B"},
+    "result": []
+  }, {
+    "name": "union child of array, single quotes",
+    "selector": "$['a']",
+    "document": ["first", "second"],
+    "result": []
+  }, {
+    "name": "union child, single quotes, embedded U+0000",
+    "selector": "$['\u0000']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0001",
+    "selector": "$['\u0001']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0002",
+    "selector": "$['\u0002']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0003",
+    "selector": "$['\u0003']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0004",
+    "selector": "$['\u0004']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0005",
+    "selector": "$['\u0005']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0006",
+    "selector": "$['\u0006']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0007",
+    "selector": "$['\u0007']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0008",
+    "selector": "$['\u0008']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0009",
+    "selector": "$['\u0009']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000A",
+    "selector": "$['\u000A']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000B",
+    "selector": "$['\u000B']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000C",
+    "selector": "$['\u000C']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000D",
+    "selector": "$['\u000D']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000E",
+    "selector": "$['\u000E']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+000F",
+    "selector": "$['\u000F']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0010",
+    "selector": "$['\u0010']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0011",
+    "selector": "$['\u0011']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0012",
+    "selector": "$['\u0012']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0013",
+    "selector": "$['\u0013']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0014",
+    "selector": "$['\u0014']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0015",
+    "selector": "$['\u0015']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0016",
+    "selector": "$['\u0016']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0017",
+    "selector": "$['\u0017']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0018",
+    "selector": "$['\u0018']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0019",
+    "selector": "$['\u0019']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001A",
+    "selector": "$['\u001A']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001B",
+    "selector": "$['\u001B']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001C",
+    "selector": "$['\u001C']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001D",
+    "selector": "$['\u001D']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001E",
+    "selector": "$['\u001E']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+001F",
+    "selector": "$['\u001F']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded U+0020",
+    "selector": "$['\u0020']",
+    "document": {"\u0020" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped single quote",
+    "selector": "$['\\'']",
+    "document": {"'" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped reverse solidus",
+    "selector": "$['\\\\']",
+    "document": {"\\" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped solidus",
+    "selector": "$['\\/']",
+    "document": {"/" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped backspace",
+    "selector": "$['\\b']",
+    "document": {"\u0008" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped form feed",
+    "selector": "$['\\f']",
+    "document": {"\u000C" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped line feed",
+    "selector": "$['\\n']",
+    "document": {"\u000A" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped carriage return",
+    "selector": "$['\\r']",
+    "document": {"\u000D" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped tab",
+    "selector": "$['\\t']",
+    "document": {"\u0009" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, escaped ☺",
+    "selector": "$['\\u263A']",
+    "document": {"☺" : "A"},
+    "result": ["A"]
+  }, {
+    "name": "union child, single quotes, invalid escaped ☺",
+    "selector": "$['\\u263a']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, invalid escaped double quote",
+    "selector": "$['\\\"']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, embedded single quote",
+    "selector": "$[''']",
+    "invalid_selector": true
+  }, {
+    "name": "union child, single quotes, incomplete escape",
+    "selector": "$['\\']",
+    "invalid_selector": true
+  }
 ]}
\ No newline at end of file