use std::collections::HashSet;
use std::iter::FromIterator;
use std::sync::mpsc::channel;
use std::time::Duration;
use timely::dataflow::channels::pact::Pipeline;
use timely::dataflow::operators::Operator;
use declarative_dataflow::binding::Binding;
use declarative_dataflow::plan::Implementable;
use declarative_dataflow::server::Server;
use declarative_dataflow::{q, AttributeConfig, InputSemantics, Plan, Rule, TxData};
use declarative_dataflow::{Aid, Value};
use Value::{Eid, Number, String};
struct Case {
description: &'static str,
plan: Plan,
transactions: Vec<Vec<TxData>>,
expectations: Vec<Vec<(Vec<Value>, u64, isize)>>,
}
fn dependencies(case: &Case) -> HashSet<Aid> {
let mut deps = HashSet::new();
for binding in case.plan.into_bindings().iter() {
if let Binding::Attribute(binding) = binding {
deps.insert(binding.source_attribute.clone());
}
}
deps
}
fn run_cases(mut cases: Vec<Case>) {
for case in cases.drain(..) {
timely::execute_directly(move |worker| {
let mut server = Server::<u64, u64>::new(Default::default());
let (send_results, results) = channel();
dbg!(case.description);
let mut deps = dependencies(&case);
let plan = case.plan.clone();
for tx in case.transactions.iter() {
for datum in tx {
deps.insert(datum.2.clone());
}
}
worker.dataflow::<u64, _, _>(|scope| {
for dep in deps.iter() {
server
.context
.internal
.create_attribute(dep, AttributeConfig::tx_time(InputSemantics::Raw), scope)
.unwrap();
}
server
.test_single(
scope,
Rule {
name: "query".to_string(),
plan,
},
)
.inner
.sink(Pipeline, "Results", move |input| {
input.for_each(|_time, data| {
for datum in data.iter() {
send_results.send(datum.clone()).unwrap()
}
});
});
});
let mut transactions = case.transactions.clone();
let mut next_tx = 0;
for (tx_id, tx_data) in transactions.drain(..).enumerate() {
next_tx += 1;
server.transact(tx_data, 0, 0).unwrap();
server.advance_domain(None, next_tx).unwrap();
worker.step_while(|| server.is_any_outdated());
let mut expected: HashSet<(Vec<Value>, u64, isize)> =
HashSet::from_iter(case.expectations[tx_id].iter().cloned());
for _i in 0..expected.len() {
match results.recv_timeout(Duration::from_millis(400)) {
Err(_err) => {
panic!("No result.");
}
Ok(result) => {
if !expected.remove(&result) {
panic!("Unknown result {:?}.", result);
}
}
}
}
match results.recv_timeout(Duration::from_millis(400)) {
Err(_err) => {}
Ok(result) => {
panic!("Extraneous result {:?}", result);
}
}
}
});
}
}
#[test]
fn not() {
env_logger::init();
let data = vec![
TxData(1, 1, ":name".to_string(), String("Ivan".to_string())),
TxData(1, 1, ":age".to_string(), Number(10)),
TxData(1, 2, ":name".to_string(), String("Ivan".to_string())),
TxData(1, 2, ":age".to_string(), Number(20)),
TxData(1, 3, ":name".to_string(), String("Oleg".to_string())),
TxData(1, 3, ":age".to_string(), Number(10)),
TxData(1, 4, ":name".to_string(), String("Oleg".to_string())),
TxData(1, 4, ":age".to_string(), Number(20)),
TxData(1, 5, ":name".to_string(), String("Ivan".to_string())),
TxData(1, 5, ":age".to_string(), Number(10)),
TxData(1, 6, ":name".to_string(), String("Ivan".to_string())),
TxData(1, 6, ":age".to_string(), Number(20)),
];
run_cases(vec![
Case {
description: "[:find ?e :where [?e :name] (not [?e :name Ivan])]",
plan: q(
vec![0],
vec![
Binding::attribute(0, ":name", 1),
Binding::not(Binding::attribute(0, ":name", 2)),
Binding::not(Binding::constant(2, String("Ivan".to_string()))),
],
),
transactions: vec![data.clone()],
expectations: vec![vec![(vec![Eid(3)], 0, 1), (vec![Eid(4)], 0, 1)]],
},
Case {
description: "[:find ?e :where [?e :name ?n] (not [?e :name Ivan] [?e :age 10])]",
plan: q(
vec![0],
vec![
Binding::attribute(0, ":name", 1),
Binding::not(Binding::constant(1, String("Ivan".to_string()))),
],
),
transactions: vec![data.clone()],
expectations: vec![vec![(vec![Eid(3)], 0, 1), (vec![Eid(4)], 0, 1)]],
},
]);
}