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// Copyright 2018 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
// 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.
#![cfg(all(feature = "db-dup-sort", feature = "db-int-key"))]
#![allow(clippy::many_single_char_names)]
use std::fs;
use serde_derive::Serialize;
use tempfile::Builder;
use rkv::{backend::SafeMode, PrimitiveInt, Rkv, StoreOptions, Value};
#[test]
fn test_multi_integer_keys() {
let root = Builder::new()
.prefix("test_integer_keys")
.tempdir()
.expect("tempdir");
fs::create_dir_all(root.path()).expect("dir created");
let k = Rkv::new::<SafeMode>(root.path()).expect("new succeeded");
let s = k
.open_multi_integer("s", StoreOptions::create())
.expect("open");
macro_rules! test_integer_keys {
($store:expr, $key:expr) => {{
let mut writer = k.write().expect("writer");
$store
.put(&mut writer, $key, &Value::Str("hello1"))
.expect("write");
$store
.put(&mut writer, $key, &Value::Str("hello2"))
.expect("write");
$store
.put(&mut writer, $key, &Value::Str("hello3"))
.expect("write");
let vals = $store
.get(&writer, $key)
.expect("read")
.map(|result| result.expect("ok"))
.map(|(_, v)| v)
.collect::<Vec<Value>>();
assert_eq!(
vals,
vec![
Value::Str("hello1"),
Value::Str("hello2"),
Value::Str("hello3")
]
);
writer.commit().expect("committed");
let reader = k.read().expect("reader");
let vals = $store
.get(&reader, $key)
.expect("read")
.map(|result| result.expect("ok"))
.map(|(_, v)| v)
.collect::<Vec<Value>>();
assert_eq!(
vals,
vec![
Value::Str("hello1"),
Value::Str("hello2"),
Value::Str("hello3")
]
);
}};
}
// The integer module provides only the u32 integer key variant
// of IntegerStore, so we can use it without further ado.
test_integer_keys!(s, std::u32::MIN);
test_integer_keys!(s, std::u32::MAX);
// If you want to use another integer key variant, you need to implement
// a newtype, implement PrimitiveInt, and implement or derive Serialize
// for it. Here we do so for the i32 type.
// DANGER! Doing this enables you to open a store with multiple,
// different integer key types, which may result in unexpected behavior.
// Make sure you know what you're doing!
let t = k
.open_multi_integer("s", StoreOptions::create())
.expect("open");
#[derive(Serialize)]
struct I32(i32);
impl PrimitiveInt for I32 {}
test_integer_keys!(t, I32(std::i32::MIN));
test_integer_keys!(t, I32(std::i32::MAX));
let u = k
.open_multi_integer("s", StoreOptions::create())
.expect("open");
#[derive(Serialize)]
struct U16(u16);
impl PrimitiveInt for U16 {}
test_integer_keys!(u, U16(std::u16::MIN));
test_integer_keys!(u, U16(std::u16::MAX));
let v = k
.open_multi_integer("s", StoreOptions::create())
.expect("open");
#[derive(Serialize)]
struct U64(u64);
impl PrimitiveInt for U64 {}
test_integer_keys!(v, U64(std::u64::MIN));
test_integer_keys!(v, U64(std::u64::MAX));
}