112 lines
3.4 KiB
Rust
112 lines
3.4 KiB
Rust
use crate::{
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debug_print, error::*, DatabaseConnection, DbBackend, ExecResult, MockDatabase,
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QueryResult, Statement, Transaction,
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};
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use std::fmt::Debug;
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use std::sync::{
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atomic::{AtomicUsize, Ordering},
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Mutex,
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};
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#[derive(Debug)]
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pub struct MockDatabaseConnector;
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#[derive(Debug)]
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pub struct MockDatabaseConnection {
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counter: AtomicUsize,
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mocker: Mutex<Box<dyn MockDatabaseTrait>>,
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}
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pub trait MockDatabaseTrait: Send + Debug {
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fn execute(&mut self, counter: usize, stmt: Statement) -> Result<ExecResult, DbErr>;
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fn query(&mut self, counter: usize, stmt: Statement) -> Result<Vec<QueryResult>, DbErr>;
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fn drain_transaction_log(&mut self) -> Vec<Transaction>;
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fn get_database_backend(&self) -> DbBackend;
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}
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impl MockDatabaseConnector {
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#[allow(unused_variables)]
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pub fn accepts(string: &str) -> bool {
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#[cfg(feature = "sqlx-mysql")]
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if DbScheme::Mysql::accepts(string) {
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return true;
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}
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#[cfg(feature = "sqlx-postgres")]
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if DbScheme::Postgres::accepts(string) {
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return true;
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}
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#[cfg(feature = "sqlx-sqlite")]
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if DbScheme::Sqlite::accepts(string) {
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return true;
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}
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false
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}
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#[allow(unused_variables)]
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pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
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macro_rules! connect_mock_db {
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( $syntax: expr ) => {
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Ok(DatabaseConnection::MockDatabaseConnection(
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MockDatabaseConnection::new(MockDatabase::new($syntax)),
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))
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};
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}
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#[cfg(feature = "sqlx-mysql")]
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if crate::SqlxMySqlConnector::accepts(string) {
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return connect_mock_db!(DbBackend::MySql);
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}
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#[cfg(feature = "sqlx-postgres")]
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if crate::SqlxPostgresConnector::accepts(string) {
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return connect_mock_db!(DbBackend::Postgres);
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}
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#[cfg(feature = "sqlx-sqlite")]
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if crate::SqlxSqliteConnector::accepts(string) {
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return connect_mock_db!(DbBackend::Sqlite);
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}
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connect_mock_db!(DbBackend::Postgres)
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}
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}
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impl MockDatabaseConnection {
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pub fn new<M: 'static>(m: M) -> Self
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where
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M: MockDatabaseTrait,
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{
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Self {
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counter: AtomicUsize::new(0),
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mocker: Mutex::new(Box::new(m)),
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}
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}
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pub fn get_mocker_mutex(&self) -> &Mutex<Box<dyn MockDatabaseTrait>> {
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&self.mocker
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}
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pub async fn execute(&self, statement: Statement) -> Result<ExecResult, DbErr> {
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debug_print!("{}", statement);
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let counter = self.counter.fetch_add(1, Ordering::SeqCst);
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self.mocker.lock().unwrap().execute(counter, statement)
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}
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pub async fn query_one(&self, statement: Statement) -> Result<Option<QueryResult>, DbErr> {
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debug_print!("{}", statement);
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let counter = self.counter.fetch_add(1, Ordering::SeqCst);
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let result = self.mocker.lock().unwrap().query(counter, statement)?;
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Ok(result.into_iter().next())
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}
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pub async fn query_all(&self, statement: Statement) -> Result<Vec<QueryResult>, DbErr> {
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debug_print!("{}", statement);
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let counter = self.counter.fetch_add(1, Ordering::SeqCst);
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self.mocker.lock().unwrap().query(counter, statement)
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}
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pub fn get_database_backend(&self) -> DbBackend {
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self.mocker.lock().unwrap().get_database_backend()
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}
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}
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