lib/tests: Test zstd:chunked format

lib/tests/it/main.rs

@@ -1262,10 +1262,8 @@ async fn test_container_write_derive() -> Result<()> {
     Ok(())
 }
 
-/// Test for zstd
-/// We need to handle the case of modified hardlinks into /sysroot
-#[tokio::test]
-async fn test_container_zstd() -> Result<()> {
+/// Implementation of a test case for non-gzip (i.e. zstd or zstd:chunked) compression
+async fn test_non_gzip(format: &str) -> Result<()> {
     let fixture = Fixture::new_v1()?;
     let baseimg = &fixture.export_container().await?.0;
     let basepath = &match baseimg.transport {
@@ -1277,7 +1275,7 @@ async fn test_container_zstd() -> Result<()> {
     let st = tokio::process::Command::new("skopeo")
         .args([
             "copy",
-            "--dest-compress-format=zstd",
+            &format!("--dest-compress-format={format}"),
             baseimg_ref.as_str(),
             &format!("oci:{zstd_image_path}"),
         ])
@@ -1303,6 +1301,18 @@ async fn test_container_zstd() -> Result<()> {
     Ok(())
 }
 
+/// Test for zstd
+#[tokio::test]
+async fn test_container_zstd() -> Result<()> {
+    test_non_gzip("zstd").await
+}
+
+/// Test for zstd:chunked
+#[tokio::test]
+async fn test_container_zstd_chunked() -> Result<()> {
+    test_non_gzip("zstd:chunked").await
+}
+
 /// Test for https://github.com/ostreedev/ostree-rs-ext/issues/405
 /// We need to handle the case of modified hardlinks into /sysroot
 #[tokio::test]