fix: test resolve should be called when the last client is removed

packages/pg-pool/test/idle-timeout.js

@@ -25,6 +25,7 @@ describe('idle timeout', () => {
   it(
     'times out and removes clients when others are also removed',
     co.wrap(function* () {
+      let currentClient = 1
       const pool = new Pool({ idleTimeoutMillis: 10 })
       const clientA = yield pool.connect()
       const clientB = yield pool.connect()
@@ -35,7 +36,12 @@ describe('idle timeout', () => {
         pool.on('remove', () => {
           expect(pool.idleCount).to.equal(0)
           expect(pool.totalCount).to.equal(0)
-          resolve()
+
+          if (currentClient >= 2) {
+            resolve()
+          } else {
+            currentClient++
+          }
         })
       })