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use forgedb_parser::ast::*;
#[test]
fn test_detect_many_to_many() {
// Create a simple schema with M:N relations
let schema = Schema {
structs: vec![],
enums: vec![],
models: vec![
Model { position: None,
name: "Post".to_string(),
fields: vec![
Field { position: None,
name: "id".to_string(),
field_type: FieldType::Uuid,
auto_generate: true,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
Field { position: None,
name: "tags".to_string(),
field_type: FieldType::Relation(RelationType::OneToMany(
"Tag".to_string(),
)),
auto_generate: false,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
],
composite_indexes: vec![],
projections: Vec::new(),
soft_delete: false,
},
Model { position: None,
name: "Tag".to_string(),
fields: vec![
Field { position: None,
name: "id".to_string(),
field_type: FieldType::Uuid,
auto_generate: true,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
Field { position: None,
name: "posts".to_string(),
field_type: FieldType::Relation(RelationType::OneToMany(
"Post".to_string(),
)),
auto_generate: false,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
],
composite_indexes: vec![],
projections: Vec::new(),
soft_delete: false,
},
],
};
let m2m = schema.detect_many_to_many_relations();
assert_eq!(m2m.len(), 1);
assert_eq!(m2m[0].model1, "Post");
assert_eq!(m2m[0].field1, "tags");
assert_eq!(m2m[0].model2, "Tag");
assert_eq!(m2m[0].field2, "posts");
}
#[test]
fn test_no_m2m_with_fk() {
// Schema with 1:N relationship (should not be detected as M:N)
let schema = Schema {
structs: vec![],
enums: vec![],
models: vec![
Model { position: None,
name: "User".to_string(),
fields: vec![
Field { position: None,
name: "id".to_string(),
field_type: FieldType::Uuid,
auto_generate: true,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
Field { position: None,
name: "posts".to_string(),
field_type: FieldType::Relation(RelationType::OneToMany(
"Post".to_string(),
)),
auto_generate: false,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
],
composite_indexes: vec![],
projections: Vec::new(),
soft_delete: false,
},
Model { position: None,
name: "Post".to_string(),
fields: vec![
Field { position: None,
name: "id".to_string(),
field_type: FieldType::Uuid,
auto_generate: true,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
Field { position: None,
name: "author".to_string(),
field_type: FieldType::Relation(RelationType::RequiredReference(
"User".to_string(),
)),
auto_generate: false,
unique: false,
indexed: false,
constraints: vec![],
index_type: IndexType::Hash,
is_computed: false,
fulltext_indexed: false,
is_materialized: false,
},
],
composite_indexes: vec![],
projections: Vec::new(),
soft_delete: false,
},
],
};
// Should not detect M:N because User.posts has a corresponding FK in Post.author
let m2m = schema.detect_many_to_many_relations();
assert_eq!(m2m.len(), 0);
}