Remove audbackend.checksum() and use MD5 sum

tests/conftest.py

@@ -4,6 +4,7 @@
 import pytest
 
 import audeer
+import audformat
 
 import audbackend
 
@@ -83,6 +84,34 @@ def owner(request):
     yield owner
 
 
+@pytest.fixture(scope="function")
+def parquet_file(tmpdir):
+    r"""Provide a parquet file with checksum stored in metadata.
+
+    ``audformat`` provides the possibility
+    to store a checksum,
+    based on the content of a parquet file,
+    in the metadata of that file.
+    The motivation is that a parquet file
+    cannot be written in a deterministic way
+    and the checksum is a way to track,
+    if the content has changed.
+
+    """
+    db = audformat.Database("mydb")
+    db.schemes["age"] = audformat.Scheme("int")
+    db["files"] = audformat.Table(audformat.filewise_index(["f1"]))
+    db["files"]["age"] = audformat.Column(scheme_id="age")
+    db["files"]["age"].set([40])
+    path = audeer.path(tmpdir, "files.parquet")
+    db["files"].save(
+        audeer.replace_file_extension(path, ""),
+        storage_format="parquet",
+    )
+
+    yield path
+
+
 @pytest.fixture(scope="function", autouse=False)
 def interface(tmpdir_factory, request):
     r"""Create a backend with interface.

tests/test_backend_artifactory.py

@@ -228,3 +228,23 @@ def test_open_close(host, repository):
     audbackend.backend.Artifactory.create(host, repository)
     backend.open()
     backend.close()
+
+
+@pytest.mark.parametrize(
+    "interface",
+    [(audbackend.backend.Artifactory, audbackend.interface.Maven)],
+    indirect=True,
+)
+def test_parquet_file(interface, parquet_file):
+    """Test uploading a parquet file with hash in metadata.
+
+    We need to make sure to hand the MD5 sum
+    to the deploy method of Artifactory,
+    not the checksum hash of the parquet file metadata.
+    See https://github.com/audeering/audbackend/issues/254.
+
+    """
+    dst_file = f"/{os.path.basename(parquet_file)}"
+    version = "1.0.0"
+    interface.put_file(parquet_file, dst_file, version)
+    assert interface.exists(dst_file, version)