ci: add createPool getConnection tsc build test

Author: wellwelwel

test/tsc-build/mysql/createPool/callbacks/getConnection.ts

@@ -0,0 +1,13 @@
+import { mysql } from '../../../index';
+import { access } from '../../baseConnection';
+
+const pool = mysql.createPool(access);
+
+pool.getConnection((err, conn) => {
+  try {
+    // @ts-expect-error: The connection can't get another connection
+    conn.getConnection();
+  } catch (err) {
+    console.log('This error is expected', err);
+  }
+});

test/tsc-build/mysql/createPool/promise/getConnection.ts

@@ -0,0 +1,14 @@
+import { mysql } from '../../../index';
+import { access } from '../../baseConnection';
+
+(async () => {
+  const pool = mysql.createPool(access);
+  const conn = await pool.promise().getConnection();
+  
+  try {
+    // @ts-expect-error: The connection can't get another connection
+    conn.getConnection();
+  } catch (err) {
+    console.log('This error is expected', err);
+  }
+})();

test/tsc-build/promise/createPool/getConnection.ts

@@ -0,0 +1,16 @@
+import { mysqlp as mysql } from '../../index';
+import { access } from '../baseConnection';
+
+(async () => {
+  const pool = mysql.createPool(access);
+  const conn = await pool.getConnection();
+
+  conn.connection;
+
+  try {
+    // @ts-expect-error: The connection can't get another connection
+    conn.getConnection();
+  } catch (err) {
+    console.log('This error is expected', err);
+  }
+})();