fix(sqlite): support :memory:

Author: pi0

docs/2.connectors/sqlite.md

@@ -22,7 +22,7 @@ import sqlite from "db0/connectors/better-sqlite3";
 
 const db = createDatabase(
   sqlite({
-    /* options */
+    name: ":memory:",
   }),
 );
 ```
@@ -35,7 +35,10 @@ Working directory to create database. Default is current working directory of pr
 
 ### `name`
 
-Database (file) name. Default is `db`
+Database (file) name. Default is `db`.
+
+> [!NOTE]
+> You can use `:memory:` as name for in-memory storage.
 
 ### `path`
 

src/connectors/better-sqlite3.ts

@@ -16,6 +16,10 @@ export default function sqliteConnector(opts: ConnectorOptions) {
     if (_db) {
       return _db;
     }
+    if (opts.name === ":memory:") {
+      _db = new Database(":memory:");
+      return _db;
+    }
     const filePath = resolve(
       opts.cwd || ".",
       opts.path || `.data/${opts.name || "db"}.sqlite3`,

test/connectors/better-sqlite3.test.ts

@@ -5,12 +5,10 @@ import connector from "../../src/connectors/better-sqlite3";
 import { testConnector } from "./_tests";
 
 describe("connectors: better-sqlite3", () => {
-  const tmpDir = fileURLToPath(new URL(".tmp/better-sqlite3", import.meta.url));
-  rmSync(tmpDir, { recursive: true, force: true });
   testConnector({
     dialect: "sqlite",
     connector: connector({
-      cwd: tmpDir,
+      name: ":memory:",
     }),
   });
 });