mentat/tx-parser/tests/parser.rs
Nick Alexander c165972684 Post: Reject at parse-time reversed attributes in direct notation with bad values.
This is an optimization that trades rejecting inputs earlier at the
cost of expressive error messages.  It should be possible to recover
the error messages, however.

This will reject input like `[:db/{add,retract} v :attribute/_reversed NOT-AN-ENTITY]`.
2017-06-08 10:30:31 -07:00

106 lines
4.5 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 edn;
extern crate combine;
extern crate mentat_tx;
extern crate mentat_tx_parser;
use edn::parse;
use edn::symbols::NamespacedKeyword;
use mentat_tx::entities::{
AtomOrLookupRefOrVectorOrMapNotation,
Entid,
EntidOrLookupRefOrTempId,
Entity,
OpType,
TempId,
};
use mentat_tx_parser::Tx;
#[test]
fn test_float_and_uuid() {
let expected_uuid = edn::Uuid::parse_str("267bab92-ee39-4ca2-b7f0-1163a85af1fb").expect("valid uuid");
let input = r#"
[[:db/add 101 :test/a #uuid "267bab92-ee39-4ca2-b7f0-1163a85af1fb"]
[:db/add 102 :test/b #f NaN]]
"#;
let edn = parse::value(input).expect("to parse test input");
let result = Tx::parse(&edn);
assert_eq!(result.unwrap(),
vec![
Entity::AddOrRetract {
op: OpType::Add,
e: EntidOrLookupRefOrTempId::Entid(Entid::Entid(101)),
a: Entid::Ident(NamespacedKeyword::new("test", "a")),
v: AtomOrLookupRefOrVectorOrMapNotation::Atom(edn::ValueAndSpan::new(edn::SpannedValue::Uuid(expected_uuid), edn::Span(23, 67))),
},
Entity::AddOrRetract {
op: OpType::Add,
e: EntidOrLookupRefOrTempId::Entid(Entid::Entid(102)),
a: Entid::Ident(NamespacedKeyword::new("test", "b")),
v: AtomOrLookupRefOrVectorOrMapNotation::Atom(edn::ValueAndSpan::new(edn::SpannedValue::Float(edn::OrderedFloat(std::f64::NAN)), edn::Span(91, 97))),
},
]);
}
#[test]
fn test_entities() {
let input = r#"
[[:db/add 101 :test/a "v"]
[:db/add "tempid" :test/a "v"]
[:db/retract 102 :test/b "w"]]"#;
let edn = parse::value(input).expect("to parse test input");
let result = Tx::parse(&edn);
assert_eq!(result.unwrap(),
vec![
Entity::AddOrRetract {
op: OpType::Add,
e: EntidOrLookupRefOrTempId::Entid(Entid::Entid(101)),
a: Entid::Ident(NamespacedKeyword::new("test", "a")),
v: AtomOrLookupRefOrVectorOrMapNotation::Atom(edn::ValueAndSpan::new(edn::SpannedValue::Text("v".into()), edn::Span(23, 26))),
},
Entity::AddOrRetract {
op: OpType::Add,
e: EntidOrLookupRefOrTempId::TempId(TempId::External("tempid".into())),
a: Entid::Ident(NamespacedKeyword::new("test", "a")),
v: AtomOrLookupRefOrVectorOrMapNotation::Atom(edn::ValueAndSpan::new(edn::SpannedValue::Text("v".into()), edn::Span(55, 58))),
},
Entity::AddOrRetract {
op: OpType::Retract,
e: EntidOrLookupRefOrTempId::Entid(Entid::Entid(102)),
a: Entid::Ident(NamespacedKeyword::new("test", "b")),
v: AtomOrLookupRefOrVectorOrMapNotation::Atom(edn::ValueAndSpan::new(edn::SpannedValue::Text("w".into()), edn::Span(86, 89))),
},
]);
}
#[test]
fn test_reverse_notation_illegal_nested_values() {
// Verify that we refuse to parse direct reverse notation with nested value maps or vectors.
let input = "[[:db/add 100 :test/_dangling {:test/many 13}]]";
let edn = parse::value(input).expect("to parse test input");
let result = Tx::parse(&edn);
// TODO: it would be much better to assert details about the error (here and below), but right
// now the error message isn't clear that the given value isn't valid for the backward attribute
// :test/_dangling.
assert!(result.is_err());
let input = "[[:db/add 100 :test/_dangling [:test/many 13]]]";
let edn = parse::value(input).expect("to parse test input");
let result = Tx::parse(&edn);
assert!(result.is_err());
}
// TODO: test error handling in select cases.