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Implement a basic migrator that works across backends
Signed-off-by: Victor Porof <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,138 @@ | ||
| // Copyright 2018-2019 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. | ||
|
|
||
| use std::fs; | ||
|
|
||
| use tempfile::Builder; | ||
|
|
||
| use rkv::{ | ||
| backend::{ | ||
| BackendEnvironmentBuilder, | ||
| Lmdb, | ||
| SafeMode, | ||
| }, | ||
| migrator::Migrator, | ||
| Rkv, | ||
| StoreOptions, | ||
| Value, | ||
| }; | ||
|
|
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| macro_rules! populate_store { | ||
| ($env:expr) => { | ||
| let store = $env.open_single("store", StoreOptions::create()).expect("opened"); | ||
| let mut writer = $env.write().expect("writer"); | ||
| store.put(&mut writer, "foo", &Value::I64(1234)).expect("wrote"); | ||
| store.put(&mut writer, "bar", &Value::Bool(true)).expect("wrote"); | ||
| store.put(&mut writer, "baz", &Value::Str("héllo, yöu")).expect("wrote"); | ||
| writer.commit().expect("committed"); | ||
| }; | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "new succeeded: EnvironmentDoesNotExistError")] | ||
| fn test_migrator_lmdb_to_safe_0() { | ||
| let mut builder = Lmdb::new(); | ||
| builder.set_check_if_env_exists(true); | ||
|
|
||
| let root = Builder::new().prefix("test_migrate_lmdb_to_safe").tempdir().expect("tempdir"); | ||
| let _ = Rkv::from_builder::<Lmdb>(root.path(), builder).expect("new succeeded"); | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "migrated: SourceEmpty")] | ||
| fn test_migrator_lmdb_to_safe_1() { | ||
| let root = Builder::new().prefix("test_migrate_lmdb_to_safe").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
||
| let src_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| let dst_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| Migrator::migrate_lmdb_to_safe_mode(&src_env, &dst_env).expect("migrated"); | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "migrated: DestinationNotEmpty")] | ||
| fn test_migrator_lmdb_to_safe_2() { | ||
| let root = Builder::new().prefix("test_migrate_lmdb_to_safe").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
||
| let src_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| populate_store!(&src_env); | ||
| let dst_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| populate_store!(&dst_env); | ||
| Migrator::migrate_lmdb_to_safe_mode(&src_env, &dst_env).expect("migrated"); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_migrator_lmdb_to_safe_3() { | ||
| let root = Builder::new().prefix("test_migrate_lmdb_to_safe").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
||
| let src_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| populate_store!(&src_env); | ||
| let dst_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| Migrator::migrate_lmdb_to_safe_mode(&src_env, &dst_env).expect("migrated"); | ||
|
|
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| let store = dst_env.open_single("store", StoreOptions::default()).expect("opened"); | ||
| let reader = dst_env.read().expect("reader"); | ||
| assert_eq!(store.get(&reader, "foo").expect("read"), Some(Value::I64(1234))); | ||
| assert_eq!(store.get(&reader, "bar").expect("read"), Some(Value::Bool(true))); | ||
| assert_eq!(store.get(&reader, "baz").expect("read"), Some(Value::Str("héllo, yöu"))); | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "new succeeded: EnvironmentDoesNotExistError")] | ||
| fn test_migrator_safe_to_lmdb_0() { | ||
| let mut builder = SafeMode::new(); | ||
| builder.set_check_if_env_exists(true); | ||
|
|
||
| let root = Builder::new().prefix("test_migrate_safe_to_lmdb").tempdir().expect("tempdir"); | ||
| let _ = Rkv::from_builder::<SafeMode>(root.path(), builder).expect("new succeeded"); | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "migrated: SourceEmpty")] | ||
| fn test_migrator_safe_to_lmdb_1() { | ||
| let root = Builder::new().prefix("test_migrate_safe_to_lmdb").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
||
| let src_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| let dst_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| Migrator::migrate_safe_mode_to_lmdb(&src_env, &dst_env).expect("migrated"); | ||
| } | ||
|
|
||
| #[test] | ||
| #[should_panic(expected = "migrated: DestinationNotEmpty")] | ||
| fn test_migrator_safe_to_lmdb_2() { | ||
| let root = Builder::new().prefix("test_migrate_safe_to_lmdb").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
||
| let src_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| populate_store!(&src_env); | ||
| let dst_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| populate_store!(&dst_env); | ||
| Migrator::migrate_safe_mode_to_lmdb(&src_env, &dst_env).expect("migrated"); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_migrator_safe_to_lmdb_3() { | ||
| let root = Builder::new().prefix("test_migrate_safe_to_lmdb").tempdir().expect("tempdir"); | ||
| fs::create_dir_all(root.path()).expect("dir created"); | ||
|
|
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| let src_env = Rkv::new::<SafeMode>(root.path()).expect("new succeeded"); | ||
| populate_store!(&src_env); | ||
| let dst_env = Rkv::new::<Lmdb>(root.path()).expect("new succeeded"); | ||
| Migrator::migrate_safe_mode_to_lmdb(&src_env, &dst_env).expect("migrated"); | ||
|
|
||
| let store = dst_env.open_single("store", StoreOptions::default()).expect("opened"); | ||
| let reader = dst_env.read().expect("reader"); | ||
| assert_eq!(store.get(&reader, "foo").expect("read"), Some(Value::I64(1234))); | ||
| assert_eq!(store.get(&reader, "bar").expect("read"), Some(Value::Bool(true))); | ||
| assert_eq!(store.get(&reader, "baz").expect("read"), Some(Value::Str("héllo, yöu"))); | ||
| } |