tegdb 0.5.0

The name TegridyDB (short for TegDB) is inspired by the Tegridy Farm in South Park and tries to correct some of the wrong database implementations, such as null support, implicit conversion support, etc.
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mod test_helpers {
    include!("../common/test_helpers.rs");
}
use test_helpers::run_with_both_backends;

use tegdb::Database;

#[test]
fn test_sql_integration_basic_operations() {
    let _ = run_with_both_backends("test_sql_integration_basic_operations", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Create table
        let create_sql =
            "CREATE TABLE products (id INTEGER PRIMARY KEY, name TEXT(32) NOT NULL, price REAL)";
        let result = db.execute(create_sql).unwrap();
        assert_eq!(result, 0); // CREATE TABLE returns 0 affected rows

        // Insert data
        let insert_sql =
            "INSERT INTO products (id, name, price) VALUES (1, 'Laptop', 999.99), (2, 'Mouse', 29.99)";
        let result = db.execute(insert_sql).unwrap();
        assert_eq!(result, 2); // 2 rows inserted

        // Select all
        let select_sql = "SELECT * FROM products";
        let result = db.query(select_sql).unwrap();
        assert_eq!(result.len(), 2);

        // Select with WHERE
        let select_where_sql = "SELECT name FROM products WHERE price > 50.0";
        let result = db.query(select_where_sql).unwrap();
        assert_eq!(result.columns(), ["name"]);
        assert_eq!(result.len(), 1);

        // Update
        let update_sql = "UPDATE products SET price = 899.99 WHERE name = 'Laptop'";
        let result = db.execute(update_sql).unwrap();
        assert_eq!(result, 1); // 1 row updated

        // Delete
        let delete_sql = "DELETE FROM products WHERE price < 50.0";
        let result = db.execute(delete_sql).unwrap();
        assert_eq!(result, 1); // 1 row deleted

        // Verify final state
        let final_select_sql = "SELECT * FROM products";
        let result = db.query(final_select_sql).unwrap();
        assert_eq!(result.len(), 1); // Only the laptop should remain
        Ok(())
    });
}

#[test]
fn test_sql_parser_edge_cases() {
    let _ = run_with_both_backends("test_sql_parser_edge_cases", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Test case-insensitive keywords
        db.execute("CREATE TABLE users (id INTEGER PRIMARY KEY, age INTEGER)")
            .unwrap();
        let sql = "select * from users where age > 18";
        let result = db.query(sql);
        assert!(result.is_ok());

        // Test with extra whitespace
        let sql = "   SELECT   *   FROM   users   WHERE   age   >   18   ";
        let result = db.query(sql);
        assert!(result.is_ok());

        // Test trailing semicolon
        let sql = "SELECT * FROM users;";
        let result = db.query(sql);
        assert!(result.is_ok());
        Ok(())
    });
}

#[test]
fn test_sql_integration_transaction_isolation() {
    let _ = run_with_both_backends("test_sql_integration_transaction_isolation", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Setup initial data
        db.execute("CREATE TABLE accounts (id INTEGER PRIMARY KEY, balance REAL)")
            .unwrap();
        db.execute("INSERT INTO accounts (id, balance) VALUES (1, 100.0), (2, 200.0)")
            .unwrap();

        // Test transaction isolation using explicit transactions
        {
            let mut tx = db.begin_transaction().unwrap();
            tx.execute("UPDATE accounts SET balance = 150.0 WHERE id = 1")
                .unwrap();

            let result = tx
                .query("SELECT balance FROM accounts WHERE id = 1")
                .unwrap();
            // Within the transaction, the change should be visible
            assert_eq!(result.len(), 1);

            tx.commit().unwrap();
        }
        Ok(())
    });
}

#[test]
fn test_sql_integration_constraints() {
    let _ = run_with_both_backends("test_sql_integration_constraints", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Create table with constraints
        let create_sql =
            "CREATE TABLE users (id INTEGER PRIMARY KEY, email TEXT(32) UNIQUE NOT NULL, age INTEGER)";
        db.execute(create_sql).unwrap();

        // Insert valid data
        let insert_sql = "INSERT INTO users (id, email, age) VALUES (1, 'alice@example.com', 30)";
        let result = db.execute(insert_sql);
        assert!(result.is_ok());

        // Try to insert duplicate primary key - should fail
        let duplicate_pk_sql =
            "INSERT INTO users (id, email, age) VALUES (1, 'bob@example.com', 25)";
        let result = db.execute(duplicate_pk_sql);
        assert!(result.is_err()); // Should fail due to primary key constraint
        Ok(())
    });
}

#[test]
fn test_sql_integration_complex_queries() {
    let _ = run_with_both_backends("test_sql_integration_complex_queries", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Create table
        let create_sql =
            "CREATE TABLE sales (id INTEGER PRIMARY KEY, product TEXT(32), amount REAL, date TEXT(32))";
        db.execute(create_sql).unwrap();

        // Insert test data
        let sales_data = vec![
            "INSERT INTO sales (id, product, amount, date) VALUES (1, 'Laptop', 1000.0, '2024-01-01')",
            "INSERT INTO sales (id, product, amount, date) VALUES (2, 'Mouse', 25.0, '2024-01-02')",
            "INSERT INTO sales (id, product, amount, date) VALUES (3, 'Laptop', 1200.0, '2024-01-03')",
            "INSERT INTO sales (id, product, amount, date) VALUES (4, 'Keyboard', 75.0, '2024-01-04')",
        ];

        for sql in sales_data {
            db.execute(sql).unwrap();
        }

        // Test complex WHERE conditions
        let complex_where_sql = "SELECT * FROM sales WHERE amount > 100.0 AND product = 'Laptop'";
        let result = db.query(complex_where_sql).unwrap();
        assert_eq!(result.len(), 2); // Should find both laptop sales
        Ok(())
    });
}

#[test]
fn test_sql_drop_table() {
    let _ = run_with_both_backends("test_sql_drop_table", |db_path| {
        let mut db = Database::open(db_path).unwrap();

        // Create table
        let create_sql = "CREATE TABLE temp_table (id INTEGER PRIMARY KEY, data TEXT(32))";
        db.execute(create_sql).unwrap();

        // Drop table
        let drop_sql = "DROP TABLE temp_table";
        let result = db.execute(drop_sql).unwrap();
        assert_eq!(result, 0); // DROP TABLE returns 0 affected rows
        Ok(())
    });
}

#[test]
fn test_plan_cache_select_pk_lookup() {
    let _ = run_with_both_backends("test_plan_cache_select_pk_lookup", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE users (id INTEGER PRIMARY KEY, name TEXT(32))")
            .unwrap();
        db.execute("INSERT INTO users (id, name) VALUES (1, 'Alice'), (2, 'Bob')")
            .unwrap();
        let stmt = db.prepare("SELECT name FROM users WHERE id = ?1").unwrap();
        let result1 = db
            .query_prepared(&stmt, &[tegdb::SqlValue::Integer(1)])
            .unwrap();
        assert_eq!(result1.rows().len(), 1);
        assert_eq!(
            result1.rows()[0][0],
            tegdb::SqlValue::Text("Alice".to_string())
        );
        let result2 = db
            .query_prepared(&stmt, &[tegdb::SqlValue::Integer(2)])
            .unwrap();
        assert_eq!(result2.rows().len(), 1);
        assert_eq!(
            result2.rows()[0][0],
            tegdb::SqlValue::Text("Bob".to_string())
        );
        Ok(())
    });
}

#[test]
fn test_plan_cache_select_pk_range_scan() {
    let _ = run_with_both_backends("test_plan_cache_select_pk_range_scan", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE nums (id INTEGER PRIMARY KEY, val INTEGER)")
            .unwrap();
        for i in 1..=5 {
            db.execute(&format!(
                "INSERT INTO nums (id, val) VALUES ({}, {})",
                i,
                i * 10
            ))
            .unwrap();
        }
        let stmt = db
            .prepare("SELECT id FROM nums WHERE id > ?1 AND id < ?2")
            .unwrap();
        let result = db
            .query_prepared(
                &stmt,
                &[tegdb::SqlValue::Integer(1), tegdb::SqlValue::Integer(5)],
            )
            .unwrap();
        let ids: Vec<_> = result.rows().iter().map(|r| r[0].clone()).collect();
        assert_eq!(
            ids,
            vec![
                tegdb::SqlValue::Integer(2),
                tegdb::SqlValue::Integer(3),
                tegdb::SqlValue::Integer(4)
            ]
        );
        Ok(())
    });
}

#[test]
fn test_plan_cache_select_table_scan_with_param() {
    let _ = run_with_both_backends("test_plan_cache_select_table_scan_with_param", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE items (id INTEGER PRIMARY KEY, tag TEXT(32))")
            .unwrap();
        db.execute("INSERT INTO items (id, tag) VALUES (1, 'foo'), (2, 'bar'), (3, 'foo')")
            .unwrap();
        let stmt = db.prepare("SELECT id FROM items WHERE tag = ?1").unwrap();
        let result = db
            .query_prepared(&stmt, &[tegdb::SqlValue::Text("foo".to_string())])
            .unwrap();
        let ids: Vec<_> = result.rows().iter().map(|r| r[0].clone()).collect();
        assert_eq!(
            ids,
            vec![tegdb::SqlValue::Integer(1), tegdb::SqlValue::Integer(3)]
        );
        Ok(())
    });
}

#[test]
fn test_plan_cache_insert_with_params() {
    let _ = run_with_both_backends("test_plan_cache_insert_with_params", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE t (id INTEGER PRIMARY KEY, val TEXT(32))")
            .unwrap();
        let stmt = db
            .prepare("INSERT INTO t (id, val) VALUES (?1, ?2)")
            .unwrap();
        let affected = db
            .execute_prepared(
                &stmt,
                &[
                    tegdb::SqlValue::Integer(1),
                    tegdb::SqlValue::Text("foo".to_string()),
                ],
            )
            .unwrap();
        assert_eq!(affected, 1);
        let affected = db
            .execute_prepared(
                &stmt,
                &[
                    tegdb::SqlValue::Integer(2),
                    tegdb::SqlValue::Text("bar".to_string()),
                ],
            )
            .unwrap();
        assert_eq!(affected, 1);
        let result1 = db.query("SELECT val FROM t WHERE id = 1").unwrap();
        assert_eq!(
            result1.rows()[0][0],
            tegdb::SqlValue::Text("foo".to_string())
        );
        let result2 = db.query("SELECT val FROM t WHERE id = 2").unwrap();
        assert_eq!(
            result2.rows()[0][0],
            tegdb::SqlValue::Text("bar".to_string())
        );
        Ok(())
    });
}

#[test]
fn test_plan_cache_update_with_params() {
    let _ = run_with_both_backends("test_plan_cache_update_with_params", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE t (id INTEGER PRIMARY KEY, val INTEGER)")
            .unwrap();
        db.execute("INSERT INTO t (id, val) VALUES (1, 10), (2, 20)")
            .unwrap();
        let stmt = db.prepare("UPDATE t SET val = ?1 WHERE id = ?2").unwrap();
        let affected = db
            .execute_prepared(
                &stmt,
                &[tegdb::SqlValue::Integer(100), tegdb::SqlValue::Integer(1)],
            )
            .unwrap();
        assert_eq!(affected, 1);
        let affected = db
            .execute_prepared(
                &stmt,
                &[tegdb::SqlValue::Integer(200), tegdb::SqlValue::Integer(2)],
            )
            .unwrap();
        assert_eq!(affected, 1);
        let result1 = db.query("SELECT val FROM t WHERE id = 1").unwrap();
        assert_eq!(result1.rows()[0][0], tegdb::SqlValue::Integer(100));
        let result2 = db.query("SELECT val FROM t WHERE id = 2").unwrap();
        assert_eq!(result2.rows()[0][0], tegdb::SqlValue::Integer(200));
        Ok(())
    });
}

#[test]
fn test_plan_cache_delete_with_params() {
    let _ = run_with_both_backends("test_plan_cache_delete_with_params", |db_path| {
        let mut db = Database::open(db_path).unwrap();
        db.execute("CREATE TABLE t (id INTEGER PRIMARY KEY, val TEXT(32))")
            .unwrap();
        db.execute("INSERT INTO t (id, val) VALUES (1, 'foo'), (2, 'bar'), (3, 'baz')")
            .unwrap();
        let stmt = db.prepare("DELETE FROM t WHERE id = ?1").unwrap();
        let affected = db
            .execute_prepared(&stmt, &[tegdb::SqlValue::Integer(2)])
            .unwrap();
        assert_eq!(affected, 1);
        let result = db.query("SELECT id FROM t").unwrap();
        let ids: Vec<_> = result.rows().iter().map(|r| r[0].clone()).collect();
        assert!(ids.contains(&tegdb::SqlValue::Integer(1)));
        assert!(ids.contains(&tegdb::SqlValue::Integer(3)));
        assert!(!ids.contains(&tegdb::SqlValue::Integer(2)));
        Ok(())
    });
}