feat: add a test macro (#170)

tests/test_bucket_exists.rs

@@ -19,11 +19,8 @@ use minio::s3::response::{BucketExistsResponse, DeleteBucketResponse};
 use minio::s3::types::S3Api;
 use minio_common::test_context::TestContext;
 
-#[tokio::test(flavor = "multi_thread")]
-async fn bucket_exists() {
-    let ctx = TestContext::new_from_env();
-    let (bucket_name, _cleanup) = ctx.create_bucket_helper().await;
-
+#[minio_macros::test(no_cleanup)]
+async fn bucket_exists(ctx: TestContext, bucket_name: String) {
     let resp: BucketExistsResponse = ctx.client.bucket_exists(&bucket_name).send().await.unwrap();
     assert!(resp.exists());
     assert_eq!(resp.bucket(), bucket_name);