fork of https://github.com/rust-rocksdb/rust-rocksdb for nextgraph
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113 lines
3.6 KiB
113 lines
3.6 KiB
// Copyright 2018 Eugene P.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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extern crate rocksdb;
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use rocksdb::{checkpoint::Checkpoint, Options, DB};
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use std::fs::remove_dir_all;
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#[test]
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pub fn test_single_checkpoint() {
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const PATH_PREFIX: &str = "_rust_rocksdb_cp_single_";
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// Create DB with some data
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let db_path = format!("{}db1", PATH_PREFIX);
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let _ = remove_dir_all(&db_path);
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let mut opts = Options::default();
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opts.create_if_missing(true);
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let db = DB::open(&opts, &db_path).unwrap();
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db.put(b"k1", b"v1").unwrap();
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db.put(b"k2", b"v2").unwrap();
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db.put(b"k3", b"v3").unwrap();
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db.put(b"k4", b"v4").unwrap();
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// Create checkpoint
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let cp1 = Checkpoint::new(&db).unwrap();
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let cp1_path = format!("{}cp1", PATH_PREFIX);
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let _ = remove_dir_all(&cp1_path);
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cp1.create_checkpoint(&cp1_path).unwrap();
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// Verify checkpoint
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let cp = DB::open_default(&cp1_path).unwrap();
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assert_eq!(*cp.get(b"k1").unwrap().unwrap(), *b"v1");
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assert_eq!(*cp.get(b"k2").unwrap().unwrap(), *b"v2");
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assert_eq!(*cp.get(b"k3").unwrap().unwrap(), *b"v3");
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assert_eq!(*cp.get(b"k4").unwrap().unwrap(), *b"v4");
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let _ = remove_dir_all(&db_path);
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let _ = remove_dir_all(&cp1_path);
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}
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#[test]
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pub fn test_multi_checkpoints() {
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const PATH_PREFIX: &str = "_rust_rocksdb_cp_multi_";
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// Create DB with some data
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let db_path = format!("{}db1", PATH_PREFIX);
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let _ = remove_dir_all(&db_path);
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let mut opts = Options::default();
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opts.create_if_missing(true);
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let db = DB::open(&opts, &db_path).unwrap();
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db.put(b"k1", b"v1").unwrap();
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db.put(b"k2", b"v2").unwrap();
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db.put(b"k3", b"v3").unwrap();
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db.put(b"k4", b"v4").unwrap();
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// Create first checkpoint
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let cp1 = Checkpoint::new(&db).unwrap();
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let cp1_path = format!("{}cp1", PATH_PREFIX);
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let _ = remove_dir_all(&cp1_path);
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cp1.create_checkpoint(&cp1_path).unwrap();
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// Verify checkpoint
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let cp = DB::open_default(&cp1_path).unwrap();
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assert_eq!(*cp.get(b"k1").unwrap().unwrap(), *b"v1");
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assert_eq!(*cp.get(b"k2").unwrap().unwrap(), *b"v2");
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assert_eq!(*cp.get(b"k3").unwrap().unwrap(), *b"v3");
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assert_eq!(*cp.get(b"k4").unwrap().unwrap(), *b"v4");
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let _ = remove_dir_all(&cp1_path);
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// Change some existing keys
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db.put(b"k1", b"modified").unwrap();
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db.put(b"k2", b"changed").unwrap();
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// Add some new keys
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db.put(b"k5", b"v5").unwrap();
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db.put(b"k6", b"v6").unwrap();
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// Create another checkpoint
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let cp2 = Checkpoint::new(&db).unwrap();
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let cp2_path = format!("{}cp2", PATH_PREFIX);
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let _ = remove_dir_all(&cp2_path);
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cp2.create_checkpoint(&cp2_path).unwrap();
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// Verify second checkpoint
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let cp = DB::open_default(&cp2_path).unwrap();
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assert_eq!(*cp.get(b"k1").unwrap().unwrap(), *b"modified");
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assert_eq!(*cp.get(b"k2").unwrap().unwrap(), *b"changed");
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assert_eq!(*cp.get(b"k5").unwrap().unwrap(), *b"v5");
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assert_eq!(*cp.get(b"k6").unwrap().unwrap(), *b"v6");
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let _ = remove_dir_all(&db_path);
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let _ = remove_dir_all(&cp2_path);
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}
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