111 lines
3.5 KiB
Rust
111 lines
3.5 KiB
Rust
// Copyright 2016 Mozilla
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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// this file except in compliance with the License. You may obtain a copy of the
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// License at http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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extern crate core_traits;
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extern crate edn;
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extern crate mentat_core;
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extern crate mentat_query_algebrizer;
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extern crate mentat_query_projector;
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extern crate query_projector_traits;
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use core_traits::{Attribute, Entid, ValueType};
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use mentat_core::Schema;
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use edn::query::Keyword;
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use mentat_query_algebrizer::{algebrize, parse_find_string, Known};
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use mentat_query_projector::query_projection;
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// These are helpers that tests use to build Schema instances.
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fn associate_ident(schema: &mut Schema, i: Keyword, e: Entid) {
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schema.entid_map.insert(e, i.clone());
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schema.ident_map.insert(i, e);
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}
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fn add_attribute(schema: &mut Schema, e: Entid, a: Attribute) {
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schema.attribute_map.insert(e, a);
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}
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fn prepopulated_schema() -> Schema {
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let mut schema = Schema::default();
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associate_ident(&mut schema, Keyword::namespaced("foo", "name"), 65);
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associate_ident(&mut schema, Keyword::namespaced("foo", "age"), 68);
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associate_ident(&mut schema, Keyword::namespaced("foo", "height"), 69);
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add_attribute(
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&mut schema,
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65,
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Attribute {
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value_type: ValueType::String,
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multival: false,
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..Default::default()
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},
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);
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add_attribute(
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&mut schema,
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68,
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Attribute {
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value_type: ValueType::Long,
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multival: false,
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..Default::default()
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},
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);
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add_attribute(
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&mut schema,
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69,
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Attribute {
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value_type: ValueType::Long,
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multival: false,
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..Default::default()
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},
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);
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schema
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}
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#[test]
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fn test_aggregate_unsuitable_type() {
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let schema = prepopulated_schema();
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let query = r#"[:find (avg ?e)
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:where
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[?e :foo/age ?a]]"#;
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// While the query itself algebrizes and parses…
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let parsed = parse_find_string(query).expect("query input to have parsed");
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let algebrized = algebrize(Known::for_schema(&schema), parsed).expect("query algebrizes");
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// … when we look at the projection list, we cannot reconcile the types.
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assert!(query_projection(&schema, &algebrized).is_err());
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}
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#[test]
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fn test_the_without_max_or_min() {
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let schema = prepopulated_schema();
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let query = r#"[:find (the ?e) ?a
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:where
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[?e :foo/age ?a]]"#;
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// While the query itself algebrizes and parses…
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let parsed = parse_find_string(query).expect("query input to have parsed");
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let algebrized = algebrize(Known::for_schema(&schema), parsed).expect("query algebrizes");
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// … when we look at the projection list, we cannot reconcile the types.
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let projection = query_projection(&schema, &algebrized);
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assert!(projection.is_err());
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use query_projector_traits::errors::ProjectorError;
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match projection.err().expect("expected failure") {
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ProjectorError::InvalidProjection(s) => {
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assert_eq!(s.as_str(), "Warning: used `the` without `min` or `max`.");
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}
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_ => panic!(),
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}
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}
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