---
source: crates/biome_json_parser/tests/spec_test.rs
expression: snapshot
---
## Input
```json
[nul]
```
## AST
```
JsonRoot {
bom_token: missing (optional),
value: JsonArrayValue {
l_brack_token: L_BRACK@0..1 "[" [] [],
elements: JsonArrayElementList [
JsonBogusValue {
items: [
IDENT@1..4 "nul" [] [],
],
},
],
r_brack_token: R_BRACK@4..5 "]" [] [],
},
eof_token: EOF@5..5 "" [] [],
}
```
## CST
```
0: JSON_ROOT@0..5
0: (empty)
1: JSON_ARRAY_VALUE@0..5
0: L_BRACK@0..1 "[" [] []
1: JSON_ARRAY_ELEMENT_LIST@1..4
0: JSON_BOGUS_VALUE@1..4
0: IDENT@1..4 "nul" [] []
2: R_BRACK@4..5 "]" [] []
2: EOF@5..5 "" [] []
```
## Diagnostics
```
incomplete_null.json:1:2 parse ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
× String values must be double quoted.
> 1 │ [nul]
│ ^^^
```