minio-rs/tests/test_object_compose.rs

// MinIO Rust Library for Amazon S3 Compatible Cloud Storage
// Copyright 2025 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use minio::s3::args::{ComposeObjectArgs, ComposeSource, StatObjectArgs};
use minio::s3::builders::ObjectContent;
use minio_common::rand_src::RandSrc;
use minio_common::test_context::TestContext;
use minio_common::utils::rand_object_name;

#[tokio::test(flavor = "multi_thread", worker_threads = 10)]
async fn compose_object() {
    let ctx = TestContext::new_from_env();
    let (bucket_name, _cleanup) = ctx.create_bucket_helper().await;
    let src_object_name = rand_object_name();

    let size = 16_u64;
    let r = RandSrc::new(size);
    let put_content = ObjectContent::new_from_stream(r, Some(size));
    ctx.client
        .put_object_content(&bucket_name, &src_object_name, put_content)
        .send()
        .await
        .unwrap();

    let mut s1 = ComposeSource::new(&bucket_name, &src_object_name).unwrap();
    s1.offset = Some(3);
    s1.length = Some(5);
    let mut sources: Vec<ComposeSource> = Vec::new();
    sources.push(s1);

    let object_name = rand_object_name();

    ctx.client
        .compose_object(
            &mut ComposeObjectArgs::new(&bucket_name, &object_name, &mut sources).unwrap(),
        )
        .await
        .unwrap();

    let resp = ctx
        .client
        .stat_object(&StatObjectArgs::new(&bucket_name, &object_name).unwrap())
        .await
        .unwrap();
    assert_eq!(resp.size, 5);
}