61 lines
2 KiB
Rust
61 lines
2 KiB
Rust
![]() |
// Copyright 2016 Mozilla
|
||
|
//
|
||
|
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
|
||
|
// this file except in compliance with the License. You may obtain a copy of the
|
||
|
// License at http://www.apache.org/licenses/LICENSE-2.0
|
||
|
// Unless required by applicable law or agreed to in writing, software distributed
|
||
|
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||
|
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
||
|
// specific language governing permissions and limitations under the License.
|
||
|
|
||
|
extern crate mentat_core;
|
||
|
extern crate mentat_query;
|
||
|
extern crate mentat_query_algebrizer;
|
||
|
extern crate mentat_query_parser;
|
||
|
extern crate mentat_query_translator;
|
||
|
extern crate mentat_sql;
|
||
|
|
||
|
use mentat_query::NamespacedKeyword;
|
||
|
|
||
|
use mentat_core::{
|
||
|
Attribute,
|
||
|
Entid,
|
||
|
Schema,
|
||
|
ValueType,
|
||
|
};
|
||
|
|
||
|
use mentat_query_parser::parse_find_string;
|
||
|
use mentat_query_algebrizer::algebrize;
|
||
|
use mentat_query_translator::{
|
||
|
cc_to_exists,
|
||
|
};
|
||
|
|
||
|
use mentat_sql::SQLQuery;
|
||
|
|
||
|
fn associate_ident(schema: &mut Schema, i: NamespacedKeyword, e: Entid) {
|
||
|
schema.entid_map.insert(e, i.clone());
|
||
|
schema.ident_map.insert(i.clone(), e);
|
||
|
}
|
||
|
|
||
|
fn add_attribute(schema: &mut Schema, e: Entid, a: Attribute) {
|
||
|
schema.schema_map.insert(e, a);
|
||
|
}
|
||
|
|
||
|
#[test]
|
||
|
fn test_exists() {
|
||
|
let mut schema = Schema::default();
|
||
|
associate_ident(&mut schema, NamespacedKeyword::new("foo", "bar"), 99);
|
||
|
add_attribute(&mut schema, 99, Attribute {
|
||
|
value_type: ValueType::String,
|
||
|
..Default::default()
|
||
|
});
|
||
|
|
||
|
let input = r#"[:find ?x :where [?x :foo/bar "yyy"]]"#;
|
||
|
let parsed = parse_find_string(input).unwrap();
|
||
|
let algebrized = algebrize(&schema, parsed);
|
||
|
let select = cc_to_exists(algebrized.cc);
|
||
|
let SQLQuery { sql, args } = select.to_sql_query().unwrap();
|
||
|
assert_eq!(sql, "SELECT 1 FROM `datoms` AS `datoms00` WHERE `datoms00`.a = 99 AND `datoms00`.v = $v0");
|
||
|
assert_eq!(args, vec![("$v0".to_string(), "yyy".to_string())]);
|
||
|
}
|