cast: JSON is always UTF8

Author: mattrobenolt

__tests__/golden.test.ts

@@ -62,7 +62,7 @@ describe('golden', () => {
       aa: 'aa',
       ab: 'foo',
       ac: 'foo,bar',
-      ad: { ad: null },
+      ad: { ad: null, foo: 'ü' },
       ae: uint8ArrayFromHex(
         '0x0000000001020000000300000000000000000000000000000000000000000000000000F03F000000000000F03F00000000000000400000000000000000'
       ),

golden/database.json

@@ -514,7 +514,7 @@
         "2",
         "3",
         "7",
-        "12",
+        "25",
         "61",
         "25",
         "61",
@@ -529,7 +529,7 @@
         "2",
         "-1"
       ],
-      "values": "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"
+      "values": "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"
     }
   ]
 }

golden/test.sql

@@ -79,7 +79,7 @@ INSERT INTO `test` VALUES (
     'aa',
     'foo',
     'foo,bar',
-    '{"ad":null}',
+    '{"ad":null,"foo":"ü"}',
     ST_GeomFromText('LINESTRING(0 0, 1 1, 2 0)'),
     POINT(1, 1),
     ST_GeomFromText('LINESTRING(0 0, 1 1, 2 0)'),

src/cast.ts

@@ -23,7 +23,7 @@ export function cast(field: Field, value: any): any {
   }
 
   if (isJson(field)) {
-    return JSON.parse(value)
+    return JSON.parse(decodeUtf8(value))
   }
 
   if (isIntegral(field)) {