fixed the bug that searchKeys would return value != -1 when the keys located in different json entry

For example, this json object, when looking for keys [‘a’, ‘c’],
searchKeys should return a negative value, use to return possible which
could cause wrong data for Get API
{
    "a": {
        "a": 1
    },
    "b": {
        "a": 3,
        "c": [1, 2]
    }
}

Author: onepill

parser.go

@@ -166,6 +166,9 @@ func searchKeys(data []byte, keys ...string) int {
 		case '{':
 			level++
 		case '}':
+			if keyLevel > 0 {
+				keyLevel--
+			}
 			level--
 		case '[':
 			// Do not search for keys inside arrays

parser_test.go

@@ -40,6 +40,7 @@ type GetTest struct {
 
 var getTests = []GetTest{
 	// Found key tests
+
 	GetTest{
 		desc:    "handling multiple nested keys with same name",
 		json:    `{"a":[{"b":1},{"b":2},3],"c":{"c":[1,2]}} }`,
@@ -255,6 +256,12 @@ var getTests = []GetTest{
 		path:    []string{"key"},
 		isFound: false,
 	},
+	GetTest{
+		desc:    "handling multiple keys with different name",
+		json:    `{"a":{"a":1},"b":{"a":3,"c":[1,2]}}`,
+		path:    []string{"a", "c"},
+		isFound: false,
+	},
 
 	// Error/invalid tests
 	GetTest{