treat comma as an operation in ParseOp

Author: absolutscottie

parser.go

@@ -316,7 +316,7 @@ func parseOp(value Expression, tokens []Token, pos *int) (Expression, error) {
 			return nil, errors.New("no value between ()")
 		}
 		return parseOp(op, tokens, pos)
-	case CloseParen, CloseBracket:
+	case CloseParen, CloseBracket, Comma:
 		return value, nil
 	default:
 		return nil, fmt.Errorf("invalid token after ident %d %s", tok.kind, tok.value)

parser_test.go

@@ -198,6 +198,18 @@ func TestParser(t *testing.T) {
 			src:      `{"field1":[]}`,
 			expected: false,
 		},
+		{
+			name: 		"ident IN value true",
+			exp:		`.field1 IN ["test"]`,
+			src: 		`{"field1":"test"}`,
+			expected:	true,
+		},
+		{
+			name: 		"ident IN value true multiple",
+			exp:		`.field1 IN ["test","foo","bar",]`,
+			src: 		`{"field1":"test"}`,
+			expected:	true,
+		},
 		{
 			name:     "array eq false",
 			exp:      `[] == ["test"]`,