From 9ca50c3474b6280401eb16cab6c653650eb9438e Mon Sep 17 00:00:00 2001
From: Grisha Kostyuk <naspeh@gmail.com>
Date: Tue, 7 Dec 2021 14:14:19 +0200
Subject: [PATCH] copy ContentType and Metadata from source object (#4666)

---
 moto/s3/models.py        |  1 +
 tests/test_s3/test_s3.py | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/moto/s3/models.py b/moto/s3/models.py
index 361b283a5..34861a9df 100644
--- a/moto/s3/models.py
+++ b/moto/s3/models.py
@@ -2066,6 +2066,7 @@ class S3Backend(BaseBackend, CloudWatchMetricProvider):
             lock_until=key.lock_until,
         )
         self.tagger.copy_tags(key.arn, new_key.arn)
+        new_key.set_metadata(key.metadata)
 
         if acl is not None:
             new_key.set_acl(acl)
diff --git a/tests/test_s3/test_s3.py b/tests/test_s3/test_s3.py
index f6daa9d7a..9ae367f48 100644
--- a/tests/test_s3/test_s3.py
+++ b/tests/test_s3/test_s3.py
@@ -1042,6 +1042,27 @@ def test_copy_key_replace_metadata():
     bucket.get_key("new-key").get_metadata("momd").should.equal("Mometadatastring")
 
 
+@mock_s3
+def test_copy_key_with_metadata_boto3():
+    s3 = boto3.resource("s3", region_name=DEFAULT_REGION_NAME)
+    client = boto3.client("s3", region_name=DEFAULT_REGION_NAME)
+    s3.create_bucket(Bucket="foobar")
+
+    key = s3.Object("foobar", "the-key")
+    metadata = {"md": "Metadatastring"}
+    content_type = "application/json"
+    initial = key.put(Body=b"{}", Metadata=metadata, ContentType=content_type)
+
+    client.copy_object(
+        Bucket="foobar", CopySource="foobar/the-key", Key="new-key",
+    )
+
+    resp = client.get_object(Bucket="foobar", Key="new-key")
+    resp["Metadata"].should.equal(metadata)
+    resp["ContentType"].should.equal(content_type)
+    resp["ETag"].should.equal(initial["ETag"])
+
+
 @mock_s3
 def test_copy_key_replace_metadata_boto3():
     s3 = boto3.resource("s3", region_name=DEFAULT_REGION_NAME)