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use links_notation::parse_lino_to_links;
use links_notation::LiNo;
#[test]
fn test_nested_self_referenced_object_in_pair_value() {
// Test case from PARSER_BUG.md
// This should parse a dict with two pairs, where the second pair's value
// is itself a self-referenced dict definition (obj_1: dict ...)
let notation = r#"(obj_0: dict ((str bmFtZQ==) (str ZGljdDE=)) ((str b3RoZXI=) (obj_1: dict ((str bmFtZQ==) (str ZGljdDI=)) ((str b3RoZXI=) obj_0))))"#;
let links = parse_lino_to_links(notation).expect("Failed to parse notation");
// Should parse exactly one top-level link
assert_eq!(links.len(), 1);
if let LiNo::Link { id, values } = &links[0] {
// Top-level link should have ID "obj_0"
assert_eq!(id, &Some("obj_0".to_string()));
// Should have: type marker + 2 pairs = 3 values
assert_eq!(values.len(), 3);
// First value is the type marker "dict"
match &values[0] {
LiNo::Ref(dict_type) => assert_eq!(dict_type, "dict"),
_ => panic!("Expected Ref for type marker"),
}
// Second and third values are the two pairs
let pair1 = &values[1];
let pair2 = &values[2];
// Pair 1: ((str bmFtZQ==) (str ZGljdDE=))
if let LiNo::Link {
id: pair1_id,
values: pair1_values,
} = pair1
{
assert_eq!(pair1_id, &None);
assert_eq!(pair1_values.len(), 2);
// First element of pair1: (str bmFtZQ==)
if let LiNo::Link {
id: elem1_id,
values: elem1_values,
} = &pair1_values[0]
{
assert_eq!(elem1_id, &None);
assert_eq!(elem1_values.len(), 2);
assert_eq!(elem1_values[0], LiNo::Ref("str".to_string()));
assert_eq!(elem1_values[1], LiNo::Ref("bmFtZQ==".to_string()));
} else {
panic!("Expected Link for pair1 element 0");
}
// Second element of pair1: (str ZGljdDE=)
if let LiNo::Link {
id: elem2_id,
values: elem2_values,
} = &pair1_values[1]
{
assert_eq!(elem2_id, &None);
assert_eq!(elem2_values.len(), 2);
assert_eq!(elem2_values[0], LiNo::Ref("str".to_string()));
assert_eq!(elem2_values[1], LiNo::Ref("ZGljdDE=".to_string()));
} else {
panic!("Expected Link for pair1 element 1");
}
} else {
panic!("Expected Link for pair1");
}
// Pair 2: ((str b3RoZXI=) (obj_1: dict ...))
// This is the critical test - the second element should be a self-referenced dict
if let LiNo::Link {
id: pair2_id,
values: pair2_values,
} = pair2
{
assert_eq!(pair2_id, &None);
assert_eq!(pair2_values.len(), 2);
// First element of pair2: (str b3RoZXI=)
if let LiNo::Link {
id: key_id,
values: key_values,
} = &pair2_values[0]
{
assert_eq!(key_id, &None);
assert_eq!(key_values.len(), 2);
assert_eq!(key_values[0], LiNo::Ref("str".to_string()));
assert_eq!(key_values[1], LiNo::Ref("b3RoZXI=".to_string()));
} else {
panic!("Expected Link for pair2 key");
}
// Second element of pair2: (obj_1: dict ((str bmFtZQ==) (str ZGljdDI=)) ((str b3RoZXI=) obj_0))
// THIS IS THE KEY TEST - obj_1 should have its ID preserved
if let LiNo::Link {
id: obj1_id,
values: obj1_values,
} = &pair2_values[1]
{
assert_eq!(
obj1_id,
&Some("obj_1".to_string()),
"obj_1 should have its ID preserved"
);
assert_eq!(
obj1_values.len(),
3,
"obj_1 should have 3 values (type marker + 2 pairs)"
);
// obj_1's type marker
assert_eq!(obj1_values[0], LiNo::Ref("dict".to_string()));
// obj_1's first pair: ((str bmFtZQ==) (str ZGljdDI=))
if let LiNo::Link {
values: obj1_pair1_values,
..
} = &obj1_values[1]
{
assert_eq!(obj1_pair1_values.len(), 2);
if let LiNo::Link {
values: k1_values, ..
} = &obj1_pair1_values[0]
{
assert_eq!(k1_values[0], LiNo::Ref("str".to_string()));
assert_eq!(k1_values[1], LiNo::Ref("bmFtZQ==".to_string()));
}
if let LiNo::Link {
values: v1_values, ..
} = &obj1_pair1_values[1]
{
assert_eq!(v1_values[0], LiNo::Ref("str".to_string()));
assert_eq!(v1_values[1], LiNo::Ref("ZGljdDI=".to_string()));
}
}
// obj_1's second pair: ((str b3RoZXI=) obj_0) - reference back to obj_0
if let LiNo::Link {
values: obj1_pair2_values,
..
} = &obj1_values[2]
{
assert_eq!(obj1_pair2_values.len(), 2);
if let LiNo::Link {
values: k2_values, ..
} = &obj1_pair2_values[0]
{
assert_eq!(k2_values[0], LiNo::Ref("str".to_string()));
assert_eq!(k2_values[1], LiNo::Ref("b3RoZXI=".to_string()));
}
// Should be a reference back to obj_0
assert_eq!(obj1_pair2_values[1], LiNo::Ref("obj_0".to_string()));
}
} else {
panic!("Expected Link for obj_1");
}
} else {
panic!("Expected Link for pair2");
}
} else {
panic!("Expected Link for top-level");
}
}
#[test]
fn test_self_reference_as_direct_child_works_correctly() {
// This pattern should work (and did work before)
let notation = r#"(obj_0: list (int 1) (int 2) (obj_1: list (int 3) (int 4) obj_0))"#;
let links = parse_lino_to_links(notation).expect("Failed to parse notation");
assert_eq!(links.len(), 1);
if let LiNo::Link { id, values } = &links[0] {
assert_eq!(id, &Some("obj_0".to_string()));
assert_eq!(values.len(), 4); // list + 1 + 2 + obj_1
// The fourth value should be obj_1 with a self-reference
if let LiNo::Link {
id: obj1_id,
values: obj1_values,
} = &values[3]
{
assert_eq!(obj1_id, &Some("obj_1".to_string()));
assert_eq!(obj1_values.len(), 4); // list + 3 + 4 + obj_0
assert_eq!(obj1_values[3], LiNo::Ref("obj_0".to_string()));
} else {
panic!("Expected Link for obj_1");
}
} else {
panic!("Expected Link for top-level");
}
}