RUST-665 Sync spec tests for dots and dollars in keys (#275)

Author: abr-egn

src/tests/spec/json/bson-corpus/document.json

@@ -17,6 +17,26 @@
             "description": "Single-character key subdoc",
             "canonical_bson": "160000000378000E0000000261000200000062000000",
             "canonical_extjson": "{\"x\" : {\"a\" : \"b\"}}"
+        },
+        {
+            "description": "Dollar-prefixed key in sub-document",
+            "canonical_bson": "170000000378000F000000022461000200000062000000",
+            "canonical_extjson": "{\"x\" : {\"$a\" : \"b\"}}"
+        },
+        {
+            "description": "Dollar as key in sub-document",
+            "canonical_bson": "160000000378000E0000000224000200000061000000",
+            "canonical_extjson": "{\"x\" : {\"$\" : \"a\"}}"
+        },
+        {
+            "description": "Dotted key in sub-document",
+            "canonical_bson": "180000000378001000000002612E62000200000063000000",
+            "canonical_extjson": "{\"x\" : {\"a.b\" : \"c\"}}"
+        },
+        {
+            "description": "Dot as key in sub-document",
+            "canonical_bson": "160000000378000E000000022E000200000061000000",
+            "canonical_extjson": "{\"x\" : {\".\" : \"a\"}}"
         }
     ],
     "decodeErrors": [

src/tests/spec/json/bson-corpus/top.json

@@ -3,9 +3,24 @@
     "bson_type": "0x00",
     "valid": [
         {
-            "description": "Document with keys that start with $",
+            "description": "Dollar-prefixed key in top-level document",
             "canonical_bson": "0F00000010246B6579002A00000000",
             "canonical_extjson": "{\"$key\": {\"$numberInt\": \"42\"}}"
+        },
+        {
+            "description": "Dollar as key in top-level document",
+            "canonical_bson": "0E00000002240002000000610000",
+            "canonical_extjson": "{\"$\": \"a\"}"
+        },
+        {
+            "description": "Dotted key in top-level document",
+            "canonical_bson": "1000000002612E620002000000630000",
+            "canonical_extjson": "{\"a.b\": \"c\"}"
+        },
+        {
+            "description": "Dot as key in top-level document",
+            "canonical_bson": "0E000000022E0002000000610000",
+            "canonical_extjson": "{\".\": \"a\"}"
         }
     ],
     "decodeErrors": [
@@ -199,14 +214,6 @@
             "description": "Bad $date (extra field)",
             "string": "{\"a\" : {\"$date\" : {\"$numberLong\" : \"1356351330501\"}, \"unrelated\": true}}"
         },
-        {
-            "description": "Bad DBRef (ref is number, not string)",
-            "string": "{\"x\" : {\"$ref\" : 42, \"$id\" : \"abc\"}}"
-        },
-        {
-            "description": "Bad DBRef (db is number, not string)",
-            "string": "{\"x\" : {\"$ref\" : \"a\", \"$id\" : \"abc\", \"$db\" : 42}}"
-        },
         {
             "description": "Bad $minKey (boolean, not integer)",
             "string": "{\"a\" : {\"$minKey\" : true}}"