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use env_logger;
use log_db;
use log_db::{LogReader, Record, RecordFieldType, RecordValue, DB};
use serial_test::serial;
use std::fs;
use std::path::Path;
const TEST_DATA_DIR: &str = "test_db_data";
const TEST_RESOURCES_DIR: &str = "tests/resources";
#[derive(Eq, PartialEq, Clone, Debug)]
enum Field {
Id,
Name,
Data,
}
#[test]
#[serial]
fn test_initialize() {
let _db = DB::configure()
.data_dir(TEST_DATA_DIR)
.fields(&vec![
(Field::Id, RecordFieldType::Int),
(Field::Name, RecordFieldType::String),
(Field::Data, RecordFieldType::Bytes),
])
.primary_key(Field::Id)
.initialize()
.expect("Failed to initialize DB instance");
// Clean up
std::fs::remove_dir_all(TEST_DATA_DIR.to_string()).unwrap();
}
#[test]
#[serial]
fn test_upsert_and_get_with_memtable() {
let mut db = DB::configure()
.data_dir(TEST_DATA_DIR)
.fields(&vec![
(Field::Id, RecordFieldType::Int),
(Field::Name, RecordFieldType::String),
(Field::Data, RecordFieldType::Bytes),
])
.primary_key(Field::Id)
.initialize()
.expect("Failed to initialize DB instance");
let record = Record {
values: vec![
RecordValue::Int(1),
RecordValue::String("Alice".to_string()),
RecordValue::Bytes(vec![0, 1, 2]),
],
};
db.upsert(&record).unwrap();
let result = db.get(&RecordValue::Int(1)).unwrap().unwrap();
// Check that the IDs match
assert!(match (&result.values[0], &record.values[0]) {
(RecordValue::Int(a), RecordValue::Int(b)) => a == b,
_ => false,
});
// Clean up
std::fs::remove_dir_all(TEST_DATA_DIR.to_string()).unwrap();
}
#[test]
#[serial]
fn test_upsert_and_get_without_memtable() {
let _ = env_logger::builder().is_test(true).try_init();
let mut db = DB::configure()
.data_dir(TEST_DATA_DIR)
.memtable_capacity(0)
.fields(&vec![
(Field::Id, RecordFieldType::Int),
(Field::Name, RecordFieldType::String),
(Field::Data, RecordFieldType::Bytes),
])
.primary_key(Field::Id)
.initialize()
.expect("Failed to initialize DB instance");
// Insert some records
let record0 = Record {
values: vec![
RecordValue::Int(0),
RecordValue::String("John".to_string()),
RecordValue::Bytes(vec![3, 4, 5]),
],
};
db.upsert(&record0).unwrap();
let record1 = Record {
values: vec![
RecordValue::Int(1),
RecordValue::String("Alice".to_string()),
RecordValue::Bytes(vec![0, 1, 2]),
],
};
db.upsert(&record1).unwrap();
let record2 = Record {
values: vec![
RecordValue::Int(1),
RecordValue::String("Bob".to_string()),
RecordValue::Bytes(vec![0, 1, 2]),
],
};
db.upsert(&record2).unwrap();
let record3 = Record {
values: vec![
RecordValue::Int(2),
RecordValue::String("George".to_string()),
RecordValue::Bytes(vec![]),
],
};
db.upsert(&record3).unwrap();
// Get with ID = 0
let result = db.get(&RecordValue::Int(0)).unwrap().unwrap();
// Should match record0
assert!(match (&result.values[0], &record0.values[0]) {
(RecordValue::Int(a), RecordValue::Int(b)) => a == b,
_ => false,
});
assert!(match (&result.values[1], &record0.values[1]) {
(RecordValue::String(a), RecordValue::String(b)) => a == b,
_ => false,
});
// Get with ID = 1
let result = db.get(&RecordValue::Int(1)).unwrap().unwrap();
// Should match record2
assert!(match (&result.values[0], &record2.values[0]) {
(RecordValue::Int(a), RecordValue::Int(b)) => a == b,
_ => false,
});
assert!(match (&result.values[1], &record2.values[1]) {
(RecordValue::String(a), RecordValue::String(b)) => a == b,
_ => false,
});
// Clean up
std::fs::remove_dir_all(TEST_DATA_DIR.to_string()).unwrap();
}
#[test]
#[serial]
fn test_upsert_fails_on_invalid_number_of_values() {
let mut db = DB::configure()
.data_dir(TEST_DATA_DIR)
.fields(&vec![
(Field::Id, RecordFieldType::Int),
(Field::Name, RecordFieldType::String),
(Field::Data, RecordFieldType::Bytes),
])
.primary_key(Field::Id)
.initialize()
.expect("Failed to initialize DB instance");
let record = Record {
// Missing primary key
values: vec![
RecordValue::String("Alice".to_string()),
RecordValue::Bytes(vec![0, 1, 2]),
],
};
assert!(db.upsert(&record).is_err());
// Clean up
std::fs::remove_dir_all(TEST_DATA_DIR.to_string()).unwrap();
}
#[test]
#[serial]
fn test_upsert_fails_on_invalid_value_type() {
let mut db = DB::configure()
.data_dir(TEST_DATA_DIR)
.fields(&vec![
(Field::Id, RecordFieldType::Int),
(Field::Name, RecordFieldType::String),
(Field::Data, RecordFieldType::Bytes),
])
.primary_key(Field::Id)
.initialize()
.expect("Failed to initialize DB instance");
let record = Record {
values: vec![
RecordValue::String("foo".to_string()),
RecordValue::String("bar".to_string()),
RecordValue::String("baz".to_string()),
],
};
assert!(db.upsert(&record).is_err());
// Clean up
std::fs::remove_dir_all(TEST_DATA_DIR.to_string()).unwrap();
}
#[test]
#[serial]
fn test_log_reader_fixture_db1() {
let _ = env_logger::builder().is_test(true).try_init();
let db_path = Path::new(TEST_RESOURCES_DIR).join("test_db1");
let mut file = fs::OpenOptions::new()
.read(true)
.open(&db_path)
.expect("Failed to open file");
let mut log_reader = LogReader::new(&mut file).unwrap();
// There are two records in the log with "schema": Int, Null
let last_record = log_reader.next().expect("Failed to read the last record");
assert!(match last_record.values.as_slice() {
[RecordValue::Int(10), RecordValue::Null] => true,
_ => false,
});
let first_record = log_reader.next().expect("Failed to read the first record");
assert!(match first_record.values.as_slice() {
// Note: the int value is equal to the escape byte
[RecordValue::Int(0x1D), RecordValue::Null] => true,
_ => false,
});
}
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