diff --git a/tests/commands/create_multipart_upload.sh b/tests/commands/create_multipart_upload.sh
index 65a7a41..e3add78 100644
--- a/tests/commands/create_multipart_upload.sh
+++ b/tests/commands/create_multipart_upload.sh
@@ -122,5 +122,11 @@ create_multipart_upload_rest() {
     log 2 "put-object-retention returned code $result: $(cat "$TEST_FILE_FOLDER/output.txt")"
     return 1
   fi
+  log 5 "result: $(cat "$TEST_FILE_FOLDER/output.txt")"
+  if ! upload_id=$(get_element_text "$TEST_FILE_FOLDER/output.txt" "InitiateMultipartUploadResult" "UploadId"); then
+    log 2 "error getting upload ID: $upload_id"
+    return 1
+  fi
+  echo "$upload_id"
   return 0
 }
diff --git a/tests/rest_scripts/rest.sh b/tests/rest_scripts/rest.sh
index 6127ca1..41d59fd 100644
--- a/tests/rest_scripts/rest.sh
+++ b/tests/rest_scripts/rest.sh
@@ -101,6 +101,22 @@ log_rest() {
   fi
 }
 
+add_cr_parameters_and_header_fields() {
+  canonical_request+="$line
+"
+  if [[ "$line" == *":"* ]]; then
+    local key="${line%%:*}"
+    local value="${line#*:}"
+    if [ "$key" == "x-amz-content-sha256" ]; then
+      payload="$value"
+    fi
+    if [[ "$value" != "" ]]; then
+      param_list=$(add_parameter "$param_list" "$key" ";")
+      header_fields+=(-H "\"$key: $value\"")
+    fi
+  fi
+}
+
 build_canonical_request() {
   if [ $# -lt 0 ]; then
     log_rest 2 "'build_canonical_request' requires parameters"
@@ -111,19 +127,7 @@ build_canonical_request() {
   local payload=""
   header_fields=()
   for line in "$@"; do
-    canonical_request+="$line
-"
-    if [[ "$line" == *":"* ]]; then
-      local key="${line%%:*}"
-      local value="${line#*:}"
-      if [ "$key" == "x-amz-content-sha256" ]; then
-        payload="$value"
-      fi
-      if [[ "$value" != "" ]]; then
-        param_list=$(add_parameter "$param_list" "$key" ";")
-        header_fields+=(-H "\"$key: $value\"")
-      fi
-    fi
+    add_cr_parameters_and_header_fields
   done
   canonical_request+="
 $param_list
diff --git a/tests/rest_scripts/upload_part.sh b/tests/rest_scripts/upload_part.sh
index 6538eee..e8eb6e1 100755
--- a/tests/rest_scripts/upload_part.sh
+++ b/tests/rest_scripts/upload_part.sh
@@ -27,31 +27,45 @@ upload_id="$UPLOAD_ID"
 # shellcheck disable=SC2153
 data=$DATA_FILE
 
-payload_hash="$(sha256sum "$data" | awk '{print $1}')"
+if [ "$data" != "" ]; then
+  payload_hash="$(sha256sum "$data" | awk '{print $1}')"
+else
+  payload_hash="$(echo -n "" | sha256sum | awk '{print $1}')"
+fi
 
-  current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")
-  aws_endpoint_url_address=${AWS_ENDPOINT_URL#*//}
-  # shellcheck disable=SC2034
-  header=$(echo "$AWS_ENDPOINT_URL" | awk -F: '{print $1}')
-  # shellcheck disable=SC2154
-  canonical_request="PUT
-/$bucket_name/$key
-partNumber=$part_number&uploadId=$upload_id
-host:$aws_endpoint_url_address
-x-amz-content-sha256:$payload_hash
-x-amz-date:$current_date_time
-
-host;x-amz-content-sha256;x-amz-date
-$payload_hash"
+current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")
+# shellcheck disable=SC2034
+header=$(echo "$AWS_ENDPOINT_URL" | awk -F: '{print $1}')
+# shellcheck disable=SC2154
+cr_data=("PUT" "/$bucket_name/$key")
+query_params=""
+if [ "$part_number" != "" ]; then
+  query_params=$(add_parameter "$query_params" "partNumber=$part_number")
+fi
+if [ "$upload_id" != "" ]; then
+  query_params=$(add_parameter "$query_params" "uploadId=$upload_id")
+fi
+cr_data+=("$query_params")
+cr_data+=("host:$host" "x-amz-content-sha256:$payload_hash" "x-amz-date:$current_date_time")
+build_canonical_request "${cr_data[@]}"
 
 # shellcheck disable=SC2119
 create_canonical_hash_sts_and_signature
 
-curl_command+=(curl -isk -w "\"%{http_code}\"" "\"$AWS_ENDPOINT_URL/$bucket_name/$key?partNumber=$part_number&uploadId=$upload_id\""
--H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-date,Signature=$signature\""
--H "\"x-amz-content-sha256: $payload_hash\""
--H "\"x-amz-date: $current_date_time\""
--o "\"$OUTPUT_FILE\""
--T "\"$data\"")
+url="'$AWS_ENDPOINT_URL/$bucket_name/$key"
+if [ "$query_params" != "" ]; then
+  url+="?$query_params"
+fi
+url+="'"
+curl_command+=(curl -isk -w "\"%{http_code}\"" -X PUT "$url"
+-H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=$param_list,Signature=$signature\"")
+if [ "$data" == "" ]; then
+  curl_command+=(-H "\"Content-Length: 0\"")
+fi
+curl_command+=("${header_fields[@]}")
+curl_command+=(-o "$OUTPUT_FILE")
+if [ "$data" != "" ]; then
+  curl_command+=(-T "$data")
+fi
 # shellcheck disable=SC2154
 eval "${curl_command[*]}" 2>&1
diff --git a/tests/rest_scripts/upload_part_copy.sh b/tests/rest_scripts/upload_part_copy.sh
index d317ef3..38060b4 100755
--- a/tests/rest_scripts/upload_part_copy.sh
+++ b/tests/rest_scripts/upload_part_copy.sh
@@ -28,29 +28,34 @@ upload_id="$UPLOAD_ID"
 part_location=$PART_LOCATION
 
 current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")
-aws_endpoint_url_address=${AWS_ENDPOINT_URL#*//}
 # shellcheck disable=SC2034
 header=$(echo "$AWS_ENDPOINT_URL" | awk -F: '{print $1}')
 # shellcheck disable=SC2154
-canonical_request="PUT
-/$bucket_name/$key
-partNumber=$part_number&uploadId=$upload_id
-host:$aws_endpoint_url_address
-x-amz-content-sha256:UNSIGNED-PAYLOAD
-x-amz-copy-source:$part_location
-x-amz-date:$current_date_time
-
-host;x-amz-content-sha256;x-amz-copy-source;x-amz-date
-UNSIGNED-PAYLOAD"
+cr_data=("PUT" "/$bucket_name/$key")
+query_params=""
+if [ "$part_number" != "" ]; then
+  query_params=$(add_parameter "$query_params" "partNumber=$part_number")
+fi
+if [ "$upload_id" != "" ]; then
+  query_params=$(add_parameter "$query_params" "uploadId=$upload_id")
+fi
+cr_data+=("$query_params")
+cr_data+=("host:$host" "x-amz-content-sha256:UNSIGNED-PAYLOAD")
+cr_data+=("x-amz-copy-source:$part_location")
+cr_data+=("x-amz-date:$current_date_time")
+build_canonical_request "${cr_data[@]}"
 
 # shellcheck disable=SC2119
 create_canonical_hash_sts_and_signature
 
-curl_command+=(curl -ks -w "\"%{http_code}\"" -X PUT "\"$AWS_ENDPOINT_URL/$bucket_name/$key?partNumber=$part_number&uploadId=$upload_id\""
--H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=host;x-amz-content-sha256;x-amz-copy-source;x-amz-date,Signature=$signature\""
--H "\"x-amz-content-sha256: UNSIGNED-PAYLOAD\""
--H "\"x-amz-copy-source: $part_location\""
--H "\"x-amz-date: $current_date_time\""
--o "\"$OUTPUT_FILE\"")
+url="'$AWS_ENDPOINT_URL/$bucket_name/$key"
+if [ "$query_params" != "" ]; then
+  url+="?$query_params"
+fi
+url+="'"
+curl_command+=(curl -ks -w "\"%{http_code}\"" -X PUT "$url"
+-H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=$param_list,Signature=$signature\"")
+curl_command+=("${header_fields[@]}")
+curl_command+=(-o "$OUTPUT_FILE")
 # shellcheck disable=SC2154
 eval "${curl_command[*]}" 2>&1
\ No newline at end of file
diff --git a/tests/test_rest.sh b/tests/test_rest.sh
index fba4758..da7b3c0 100755
--- a/tests/test_rest.sh
+++ b/tests/test_rest.sh
@@ -73,10 +73,7 @@ test_file="test_file"
   run put_object "rest" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
   assert_success
 
-  run get_object "rest" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
-  assert_success
-
-  run compare_files "$TEST_FILE_FOLDER/$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  run download_and_compare_file "rest" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
   assert_success
 
   run delete_object "rest" "$BUCKET_ONE_NAME" "$test_file"
@@ -166,10 +163,7 @@ test_file="test_file"
     "$TEST_FILE_FOLDER/$test_file-0" "$TEST_FILE_FOLDER/$test_file-1" "$TEST_FILE_FOLDER/$test_file-2" "$TEST_FILE_FOLDER/$test_file-3"
   assert_success
 
-  run get_object "rest" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
-  assert_success
-
-  run compare_files "$TEST_FILE_FOLDER/$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
+  run download_and_compare_file "rest" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file" "$TEST_FILE_FOLDER/$test_file-copy"
   assert_success
 }
 
@@ -298,7 +292,7 @@ test_file="test_file"
   assert_success
 }
 
-@test "REST - upload part copy" {
+@test "REST - upload part copy (UploadPartCopy)" {
   run setup_bucket_and_large_file "$BUCKET_ONE_NAME" "$test_file"
   assert_success
 
@@ -382,9 +376,6 @@ test_file="test_file"
 }
 
 @test "REST - put object w/STREAMING-AWS4-HMAC-SHA256-PAYLOAD without content length" {
-  if [ "$DIRECT" != "true" ]; then
-    skip "https://github.com/versity/versitygw/issues/1043"
-  fi
   run setup_bucket_and_file "$BUCKET_ONE_NAME" "$test_file"
   assert_success
 
@@ -394,7 +385,7 @@ test_file="test_file"
 
 @test "REST - HeadObject does not return 405 with versioning, after file deleted" {
   if [ "$RECREATE_BUCKETS" == "false" ] || [[ ( -z "$VERSIONING_DIR" ) && ( "$DIRECT" != "true" ) ]]; then
-    skip
+    skip "test isn't valid for this configuration"
   fi
   run bucket_cleanup_if_bucket_exists "s3api" "$BUCKET_ONE_NAME"
   assert_success
@@ -420,7 +411,7 @@ test_file="test_file"
 
 @test "REST - HeadObject returns 405 when querying DeleteMarker" {
   if [ "$RECREATE_BUCKETS" == "false" ] || [[ ( -z "$VERSIONING_DIR" ) && ( "$DIRECT" != "true" ) ]]; then
-    skip
+    skip "test isn't valid for this configuration"
   fi
   run bucket_cleanup_if_bucket_exists "s3api" "$BUCKET_ONE_NAME"
   assert_success
@@ -533,3 +524,82 @@ test_file="test_file"
   run rest_check_legal_hold "$BUCKET_ONE_NAME" "$test_file"
   assert_success
 }
+
+@test "REST - UploadPartCopy w/o upload ID" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1226"
+  fi
+  run upload_part_copy_without_upload_id_or_part_number "$BUCKET_ONE_NAME" "$test_file" "1" "" \
+    400 "InvalidArgument" "This operation does not accept partNumber without uploadId"
+  assert_success
+}
+
+@test "REST - UploadPartCopy w/o part number" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1229"
+  fi
+  run upload_part_copy_without_upload_id_or_part_number "$BUCKET_ONE_NAME" "$test_file" "" "dummy" \
+    405 "MethodNotAllowed" "The specified method is not allowed against this resource"
+  assert_success
+}
+
+@test "REST - UploadPartCopy - ETag is quoted" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1235"
+  fi
+  run setup_bucket_and_file "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run put_object "rest" "$TEST_FILE_FOLDER/$test_file" "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run upload_part_copy_check_etag_header "$BUCKET_ONE_NAME" "$test_file"-mp "$BUCKET_ONE_NAME/$test_file"
+  assert_success
+}
+
+@test "REST - UploadPart - ETag is quoted" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1233"
+  fi
+  run setup_bucket_and_large_file "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run split_file "$TEST_FILE_FOLDER/$test_file" 4
+  assert_success
+
+  run create_multipart_upload_rest "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+  # shellcheck disable=SC2030
+  upload_id=$output
+
+  run upload_part_check_etag_header "$BUCKET_ONE_NAME" "$test_file" "$upload_id"
+  assert_success
+}
+
+@test "REST - UploadPart w/o part number" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1236"
+  fi
+  run setup_bucket_and_large_file "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run split_file "$TEST_FILE_FOLDER/$test_file" 4
+  assert_success
+
+  run upload_part_without_upload_id "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+}
+
+@test "REST - UploadPart w/o upload ID" {
+  if [ "$DIRECT" != "true" ]; then
+    skip "https://github.com/versity/versitygw/issues/1237"
+  fi
+  run setup_bucket_and_large_file "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+
+  run split_file "$TEST_FILE_FOLDER/$test_file" 4
+  assert_success
+
+  run upload_part_without_upload_id "$BUCKET_ONE_NAME" "$test_file"
+  assert_success
+}
diff --git a/tests/test_rest_checksum.sh b/tests/test_rest_checksum.sh
index 351e914..6bef37a 100755
--- a/tests/test_rest_checksum.sh
+++ b/tests/test_rest_checksum.sh
@@ -21,12 +21,10 @@ source ./tests/setup.sh
 source ./tests/util/util_head_object.sh
 source ./tests/util/util_setup.sh
 
+export RUN_USERS=true
 test_file="test_file"
 
 @test "REST - invalid checksum type" {
-  if [ "$DIRECT" != "true" ]; then
-    skip "https://github.com/versity/versitygw/issues/1104"
-  fi
   run setup_bucket_and_file "$BUCKET_ONE_NAME" "$test_file"
   assert_success
 
diff --git a/tests/test_s3api_multipart.sh b/tests/test_s3api_multipart.sh
index c97e12d..b6ca4a7 100755
--- a/tests/test_s3api_multipart.sh
+++ b/tests/test_s3api_multipart.sh
@@ -29,6 +29,8 @@ source ./tests/commands/get_object.sh
 source ./tests/commands/put_object.sh
 source ./tests/commands/list_multipart_uploads.sh
 
+export RUN_USERS=true
+
 # abort-multipart-upload
 @test "test_abort_multipart_upload" {
   local bucket_file="bucket-file"
@@ -115,10 +117,7 @@ source ./tests/commands/list_multipart_uploads.sh
   run multipart_upload_from_bucket "$BUCKET_ONE_NAME" "$bucket_file" "$TEST_FILE_FOLDER"/"$bucket_file" 4
   assert_success
 
-  run get_object "s3api" "$BUCKET_ONE_NAME" "$bucket_file-copy" "$TEST_FILE_FOLDER/$bucket_file-copy"
-  assert_success
-
-  run compare_files "$TEST_FILE_FOLDER"/$bucket_file-copy "$TEST_FILE_FOLDER"/$bucket_file
+  run download_and_compare_file "s3api" "$TEST_FILE_FOLDER/$bucket_file" "$BUCKET_ONE_NAME" "${bucket_file}-copy" "$TEST_FILE_FOLDER/$bucket_file-copy-two"
   assert_success
 }
 
diff --git a/tests/test_s3api_object.sh b/tests/test_s3api_object.sh
index a9ec7f8..bfd7a25 100755
--- a/tests/test_s3api_object.sh
+++ b/tests/test_s3api_object.sh
@@ -224,7 +224,7 @@ export RUN_USERS=true
 
 @test "directory objects can't contain data" {
   if [ "$DIRECT" == "true" ]; then
-    skip
+    skip "for direct, directory objects can contain data (though discouraged)"
   fi
   test_file="a"
 
@@ -239,7 +239,7 @@ export RUN_USERS=true
 @test "objects containing data can't be copied to directory objects with same name" {
   # operation is legal (though discouraged) for direct
   if [ "$DIRECT" == "true" ]; then
-    skip
+    skip "for direct, directory objects can contain data (though discouraged)"
   fi
   test_file="a"
 
diff --git a/tests/test_user_common.sh b/tests/test_user_common.sh
index 23f7130..0eef563 100755
--- a/tests/test_user_common.sh
+++ b/tests/test_user_common.sh
@@ -71,7 +71,7 @@ test_create_user_already_exists() {
 
 test_user_user() {
   if [ "$RECREATE_BUCKETS" == "false" ]; then
-    skip
+    skip "test not valid for static buckets"
   fi
 
   run setup_user_v2 "user" "1" "$BUCKET_ONE_NAME"
diff --git a/tests/util/util_multipart.sh b/tests/util/util_multipart.sh
index 645ce9e..aa0c892 100644
--- a/tests/util/util_multipart.sh
+++ b/tests/util/util_multipart.sh
@@ -221,7 +221,7 @@ run_and_verify_multipart_upload_with_valid_range() {
 
 create_upload_part_copy_rest() {
   if [ $# -ne 3 ]; then
-    log 2 "'run_and_verify_multipart_upload_with_valid_range' requires bucket, key, >20MB file"
+    log 2 "'create_upload_part_copy_rest' requires bucket, key, >20MB file"
     return 1
   fi
   if ! split_and_put_file "$1" "$2" "$3" 4; then
@@ -314,10 +314,10 @@ setup_multipart_upload_with_params() {
   os_name="$(uname)"
   if [[ "$os_name" == "Darwin" ]]; then
     now=$(date -u +"%Y-%m-%dT%H:%M:%S")
-    later=$(date -j -v +15S -f "%Y-%m-%dT%H:%M:%S" "$now" +"%Y-%m-%dT%H:%M:%S")
+    later=$(date -j -v +20S -f "%Y-%m-%dT%H:%M:%S" "$now" +"%Y-%m-%dT%H:%M:%S")
   else
     now=$(date +"%Y-%m-%dT%H:%M:%S")
-    later=$(date -d "$now 15 seconds" +"%Y-%m-%dT%H:%M:%S")
+    later=$(date -d "$now 20 seconds" +"%Y-%m-%dT%H:%M:%S")
   fi
 
   if ! create_test_files "$2"; then
diff --git a/tests/util/util_multipart_before_completion.sh b/tests/util/util_multipart_before_completion.sh
index 3e66e12..ced8701 100644
--- a/tests/util/util_multipart_before_completion.sh
+++ b/tests/util/util_multipart_before_completion.sh
@@ -434,3 +434,115 @@ list_check_multipart_upload_key() {
   fi
   return 0
 }
+
+upload_part_copy_without_upload_id_or_part_number() {
+  if [ $# -ne 7 ]; then
+    log 2 "'upload_part_copy_without_upload_id_or_part_number' requires bucket name, key, part number, upload ID, response code, error code, message"
+    return 1
+  fi
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" BUCKET_NAME="$1" OBJECT_KEY="$2" PART_NUMBER="$3" UPLOAD_ID="$4" PART_LOCATION="$BUCKET_ONE_NAME/$2-1" OUTPUT_FILE="$TEST_FILE_FOLDER/response.txt" ./tests/rest_scripts/upload_part_copy.sh); then
+    # shellcheck disable=SC2154
+    log 2 "error uploading part $i: $result"
+    return 1
+  fi
+  log 5 "result: $result"
+  if [ "$result" != "$5" ]; then
+    log 2 "expected '$5', was '$result' ($(cat "$TEST_FILE_FOLDER/response.txt"))"
+    return 1
+  fi
+  log 5 "error:  $(cat "$TEST_FILE_FOLDER/response.txt")"
+  if ! check_xml_error_contains "$TEST_FILE_FOLDER/response.txt" "$6" "$7"; then
+    log 2 "error checking XML response"
+    return 1
+  fi
+}
+
+upload_part_check_etag_header() {
+  if [ $# -ne 3 ]; then
+    log 2 "'upload_part_check_etag_header' requires bucket name, key, upload ID"
+    return 1
+  fi
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" BUCKET_NAME="$1" OBJECT_KEY="$2" PART_NUMBER="1" UPLOAD_ID="$3" OUTPUT_FILE="$TEST_FILE_FOLDER/response.txt" ./tests/rest_scripts/upload_part.sh); then
+    # shellcheck disable=SC2154
+    log 2 "error uploading part $i: $result"
+    return 1
+  fi
+  if [ "$result" != "200" ]; then
+    log 2 "expected '200', was '$result'"
+    return 1
+  fi
+  etag="$(grep -i "ETag: " "$TEST_FILE_FOLDER/response.txt" | awk '{print $2}' | tr -d '\r')"
+  if ! [[ "$etag" =~ ^\"[0-9a-f]+\" ]]; then
+    log 2 "etag pattern mismatch, etag ($etag) should be hex string surrounded by quotes"
+    return 1
+  fi
+  return 0
+}
+
+upload_part_copy_check_etag_header() {
+  if [ $# -ne 3 ]; then
+    log 2 "'upload_part_copy_check_etag_header' requires bucket, destination file, part location"
+    return 1
+  fi
+  if ! create_upload_and_get_id_rest "$1" "$2"; then
+    log 2 "error creating upload and getting ID"
+    return 1
+  fi
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" BUCKET_NAME="$1" OBJECT_KEY="$2" PART_NUMBER="1" UPLOAD_ID="$upload_id" PART_LOCATION="$3" OUTPUT_FILE="$TEST_FILE_FOLDER/response.txt" ./tests/rest_scripts/upload_part_copy.sh); then
+    # shellcheck disable=SC2154
+    log 2 "error uploading part: $result"
+    return 1
+  fi
+  if ! etag=$(get_element_text "$TEST_FILE_FOLDER/response.txt" "CopyPartResult" "ETag"); then
+    log 2 "error getting etag"
+    return 1
+  fi
+  log 5 "etag: $etag"
+  if ! [[ "$etag" =~ ^\"[0-9a-f]+\" ]]; then
+    log 2 "etag pattern mismatch, etag ($etag) should be hex string surrounded by quotes"
+    return 1
+  fi
+  return 0
+}
+
+upload_part_without_part_number() {
+  if [ $# -ne 2 ]; then
+    log 2 "'upload_part_without_upload_id' requires bucket name, key"
+    return 1
+  fi
+  if ! create_multipart_upload_rest "$1" "$2"; then
+    log 2 "error creating multpart upload"
+    return 1
+  fi
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" BUCKET_NAME="$1" OBJECT_KEY="$2" DATA_FILE="$TEST_FILE_FOLDER/$2" PART_NUMBER="" UPLOAD_ID="$upload_id" OUTPUT_FILE="$TEST_FILE_FOLDER/response.txt" ./tests/rest_scripts/upload_part.sh); then
+    # shellcheck disable=SC2154
+    log 2 "error uploading part $i: $result"
+    return 1
+  fi
+  if [ "$result" != "405" ]; then
+    log 2 "expected '405', was '$result' ($(cat "$TEST_FILE_FOLDER/response.txt"))"
+    return 1
+  fi
+  return 0
+}
+
+upload_part_without_upload_id() {
+  if [ $# -ne 2 ]; then
+    log 2 "'upload_part_without_part_number' requires bucket name, key"
+    return 1
+  fi
+  if ! create_multipart_upload_rest "$1" "$2"; then
+    log 2 "error creating multpart upload"
+    return 1
+  fi
+  if ! result=$(COMMAND_LOG="$COMMAND_LOG" BUCKET_NAME="$1" OBJECT_KEY="$2" DATA_FILE="$TEST_FILE_FOLDER/$2" PART_NUMBER="1" UPLOAD_ID="" OUTPUT_FILE="$TEST_FILE_FOLDER/response.txt" ./tests/rest_scripts/upload_part.sh); then
+    # shellcheck disable=SC2154
+    log 2 "error uploading part $i: $result"
+    return 1
+  fi
+  if [ "$result" != "405" ]; then
+    log 2 "expected '405', was '$result' ($(cat "$TEST_FILE_FOLDER/response.txt"))"
+    return 1
+  fi
+  return 0
+}
\ No newline at end of file