From 97f7ea50a30d1dc1133d7703e6bd90ad209f75a1 Mon Sep 17 00:00:00 2001
From: "gcf-owl-bot[bot]" <78513119+gcf-owl-bot[bot]@users.noreply.github.com>
Date: Thu, 3 Feb 2022 10:20:44 +0000
Subject: [PATCH] chore: use gapic-generator-python 0.62.1 (#232)

- [ ] Regenerate this pull request now.

fix: resolve DuplicateCredentialArgs error when using credentials_file

committer: parthea
PiperOrigin-RevId: 425964861

Source-Link: https://github.com/googleapis/googleapis/commit/84b1a5a4f6fb2d04905be58e586b8a7a4310a8cf

Source-Link: https://github.com/googleapis/googleapis-gen/commit/4fb761bbd8506ac156f49bac5f18306aa8eb3aa8
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNGZiNzYxYmJkODUwNmFjMTU2ZjQ5YmFjNWYxODMwNmFhOGViM2FhOCJ9
---
 .../key_management_service/async_client.py    | 54 ++++++-------
 .../services/key_management_service/client.py | 54 ++++++-------
 .../key_management_service/transports/grpc.py |  5 +-
 .../transports/grpc_asyncio.py                |  5 +-
 .../kms_v1/test_key_management_service.py     | 76 ++++++++++++++++++-
 5 files changed, 136 insertions(+), 58 deletions(-)

diff --git a/google/cloud/kms_v1/services/key_management_service/async_client.py b/google/cloud/kms_v1/services/key_management_service/async_client.py
index 92b44094..f0d0543a 100644
--- a/google/cloud/kms_v1/services/key_management_service/async_client.py
+++ b/google/cloud/kms_v1/services/key_management_service/async_client.py
@@ -284,7 +284,7 @@ async def list_key_rings(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -376,7 +376,7 @@ async def list_crypto_keys(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -469,7 +469,7 @@ async def list_crypto_key_versions(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -561,7 +561,7 @@ async def list_import_jobs(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -651,7 +651,7 @@ async def get_key_ring(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -743,7 +743,7 @@ async def get_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -839,7 +839,7 @@ async def get_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -929,7 +929,7 @@ async def get_public_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1056,7 +1056,7 @@ async def get_import_job(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1157,7 +1157,7 @@ async def create_key_ring(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, key_ring_id, key_ring])
         if request is not None and has_flattened_params:
@@ -1271,7 +1271,7 @@ async def create_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, crypto_key_id, crypto_key])
         if request is not None and has_flattened_params:
@@ -1386,7 +1386,7 @@ async def create_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, crypto_key_version])
         if request is not None and has_flattened_params:
@@ -1594,7 +1594,7 @@ async def create_import_job(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, import_job_id, import_job])
         if request is not None and has_flattened_params:
@@ -1694,7 +1694,7 @@ async def update_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([crypto_key, update_mask])
         if request is not None and has_flattened_params:
@@ -1813,7 +1813,7 @@ async def update_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([crypto_key_version, update_mask])
         if request is not None and has_flattened_params:
@@ -1919,7 +1919,7 @@ async def update_crypto_key_primary_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, crypto_key_version_id])
         if request is not None and has_flattened_params:
@@ -2037,7 +2037,7 @@ async def destroy_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -2142,7 +2142,7 @@ async def restore_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -2252,7 +2252,7 @@ async def encrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, plaintext])
         if request is not None and has_flattened_params:
@@ -2350,7 +2350,7 @@ async def decrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, ciphertext])
         if request is not None and has_flattened_params:
@@ -2450,7 +2450,7 @@ async def asymmetric_sign(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, digest])
         if request is not None and has_flattened_params:
@@ -2550,7 +2550,7 @@ async def asymmetric_decrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, ciphertext])
         if request is not None and has_flattened_params:
@@ -2648,7 +2648,7 @@ async def mac_sign(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, data])
         if request is not None and has_flattened_params:
@@ -2752,7 +2752,7 @@ async def mac_verify(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, data, mac])
         if request is not None and has_flattened_params:
@@ -2824,8 +2824,8 @@ async def generate_random_bytes(
             location (:class:`str`):
                 The project-specific location in
                 which to generate random bytes. For
-                example, "projects/my-
-                project/locations/us-central1".
+                example,
+                "projects/my-project/locations/us-central1".
 
                 This corresponds to the ``location`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -2860,7 +2860,7 @@ async def generate_random_bytes(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([location, length_bytes, protection_level])
         if request is not None and has_flattened_params:
diff --git a/google/cloud/kms_v1/services/key_management_service/client.py b/google/cloud/kms_v1/services/key_management_service/client.py
index 3af40f42..0966aa0c 100644
--- a/google/cloud/kms_v1/services/key_management_service/client.py
+++ b/google/cloud/kms_v1/services/key_management_service/client.py
@@ -560,7 +560,7 @@ def list_key_rings(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -642,7 +642,7 @@ def list_crypto_keys(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -725,7 +725,7 @@ def list_crypto_key_versions(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -807,7 +807,7 @@ def list_import_jobs(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent])
         if request is not None and has_flattened_params:
@@ -887,7 +887,7 @@ def get_key_ring(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -969,7 +969,7 @@ def get_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1055,7 +1055,7 @@ def get_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1135,7 +1135,7 @@ def get_public_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1252,7 +1252,7 @@ def get_import_job(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -1343,7 +1343,7 @@ def create_key_ring(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, key_ring_id, key_ring])
         if request is not None and has_flattened_params:
@@ -1447,7 +1447,7 @@ def create_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, crypto_key_id, crypto_key])
         if request is not None and has_flattened_params:
@@ -1552,7 +1552,7 @@ def create_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, crypto_key_version])
         if request is not None and has_flattened_params:
@@ -1765,7 +1765,7 @@ def create_import_job(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([parent, import_job_id, import_job])
         if request is not None and has_flattened_params:
@@ -1855,7 +1855,7 @@ def update_crypto_key(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([crypto_key, update_mask])
         if request is not None and has_flattened_params:
@@ -1964,7 +1964,7 @@ def update_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([crypto_key_version, update_mask])
         if request is not None and has_flattened_params:
@@ -2062,7 +2062,7 @@ def update_crypto_key_primary_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, crypto_key_version_id])
         if request is not None and has_flattened_params:
@@ -2172,7 +2172,7 @@ def destroy_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -2269,7 +2269,7 @@ def restore_crypto_key_version(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name])
         if request is not None and has_flattened_params:
@@ -2371,7 +2371,7 @@ def encrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, plaintext])
         if request is not None and has_flattened_params:
@@ -2459,7 +2459,7 @@ def decrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, ciphertext])
         if request is not None and has_flattened_params:
@@ -2549,7 +2549,7 @@ def asymmetric_sign(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, digest])
         if request is not None and has_flattened_params:
@@ -2639,7 +2639,7 @@ def asymmetric_decrypt(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, ciphertext])
         if request is not None and has_flattened_params:
@@ -2727,7 +2727,7 @@ def mac_sign(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, data])
         if request is not None and has_flattened_params:
@@ -2821,7 +2821,7 @@ def mac_verify(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([name, data, mac])
         if request is not None and has_flattened_params:
@@ -2883,8 +2883,8 @@ def generate_random_bytes(
             location (str):
                 The project-specific location in
                 which to generate random bytes. For
-                example, "projects/my-
-                project/locations/us-central1".
+                example,
+                "projects/my-project/locations/us-central1".
 
                 This corresponds to the ``location`` field
                 on the ``request`` instance; if ``request`` is provided, this
@@ -2919,7 +2919,7 @@ def generate_random_bytes(
 
         """
         # Create or coerce a protobuf request object.
-        # Sanity check: If we got a request object, we should *not* have
+        # Quick check: If we got a request object, we should *not* have
         # gotten any keyword arguments that map to the request.
         has_flattened_params = any([location, length_bytes, protection_level])
         if request is not None and has_flattened_params:
diff --git a/google/cloud/kms_v1/services/key_management_service/transports/grpc.py b/google/cloud/kms_v1/services/key_management_service/transports/grpc.py
index 0fabb11e..742ac3cf 100644
--- a/google/cloud/kms_v1/services/key_management_service/transports/grpc.py
+++ b/google/cloud/kms_v1/services/key_management_service/transports/grpc.py
@@ -172,8 +172,11 @@ def __init__(
         if not self._grpc_channel:
             self._grpc_channel = type(self).create_channel(
                 self._host,
+                # use the credentials which are saved
                 credentials=self._credentials,
-                credentials_file=credentials_file,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
                 scopes=self._scopes,
                 ssl_credentials=self._ssl_channel_credentials,
                 quota_project_id=quota_project_id,
diff --git a/google/cloud/kms_v1/services/key_management_service/transports/grpc_asyncio.py b/google/cloud/kms_v1/services/key_management_service/transports/grpc_asyncio.py
index ccce24a4..659578be 100644
--- a/google/cloud/kms_v1/services/key_management_service/transports/grpc_asyncio.py
+++ b/google/cloud/kms_v1/services/key_management_service/transports/grpc_asyncio.py
@@ -217,8 +217,11 @@ def __init__(
         if not self._grpc_channel:
             self._grpc_channel = type(self).create_channel(
                 self._host,
+                # use the credentials which are saved
                 credentials=self._credentials,
-                credentials_file=credentials_file,
+                # Set ``credentials_file`` to ``None`` here as
+                # the credentials that we saved earlier should be used.
+                credentials_file=None,
                 scopes=self._scopes,
                 ssl_credentials=self._ssl_channel_credentials,
                 quota_project_id=quota_project_id,
diff --git a/tests/unit/gapic/kms_v1/test_key_management_service.py b/tests/unit/gapic/kms_v1/test_key_management_service.py
index 68c2de4e..8e44d7a5 100644
--- a/tests/unit/gapic/kms_v1/test_key_management_service.py
+++ b/tests/unit/gapic/kms_v1/test_key_management_service.py
@@ -539,25 +539,28 @@ def test_key_management_service_client_client_options_scopes(
 
 
 @pytest.mark.parametrize(
-    "client_class,transport_class,transport_name",
+    "client_class,transport_class,transport_name,grpc_helpers",
     [
         (
             KeyManagementServiceClient,
             transports.KeyManagementServiceGrpcTransport,
             "grpc",
+            grpc_helpers,
         ),
         (
             KeyManagementServiceAsyncClient,
             transports.KeyManagementServiceGrpcAsyncIOTransport,
             "grpc_asyncio",
+            grpc_helpers_async,
         ),
     ],
 )
 def test_key_management_service_client_client_options_credentials_file(
-    client_class, transport_class, transport_name
+    client_class, transport_class, transport_name, grpc_helpers
 ):
     # Check the case credentials file is provided.
     options = client_options.ClientOptions(credentials_file="credentials.json")
+
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
         client = client_class(client_options=options, transport=transport_name)
@@ -593,6 +596,75 @@ def test_key_management_service_client_client_options_from_dict():
         )
 
 
+@pytest.mark.parametrize(
+    "client_class,transport_class,transport_name,grpc_helpers",
+    [
+        (
+            KeyManagementServiceClient,
+            transports.KeyManagementServiceGrpcTransport,
+            "grpc",
+            grpc_helpers,
+        ),
+        (
+            KeyManagementServiceAsyncClient,
+            transports.KeyManagementServiceGrpcAsyncIOTransport,
+            "grpc_asyncio",
+            grpc_helpers_async,
+        ),
+    ],
+)
+def test_key_management_service_client_create_channel_credentials_file(
+    client_class, transport_class, transport_name, grpc_helpers
+):
+    # Check the case credentials file is provided.
+    options = client_options.ClientOptions(credentials_file="credentials.json")
+
+    with mock.patch.object(transport_class, "__init__") as patched:
+        patched.return_value = None
+        client = client_class(client_options=options, transport=transport_name)
+        patched.assert_called_once_with(
+            credentials=None,
+            credentials_file="credentials.json",
+            host=client.DEFAULT_ENDPOINT,
+            scopes=None,
+            client_cert_source_for_mtls=None,
+            quota_project_id=None,
+            client_info=transports.base.DEFAULT_CLIENT_INFO,
+            always_use_jwt_access=True,
+        )
+
+    # test that the credentials from file are saved and used as the credentials.
+    with mock.patch.object(
+        google.auth, "load_credentials_from_file", autospec=True
+    ) as load_creds, mock.patch.object(
+        google.auth, "default", autospec=True
+    ) as adc, mock.patch.object(
+        grpc_helpers, "create_channel"
+    ) as create_channel:
+        creds = ga_credentials.AnonymousCredentials()
+        file_creds = ga_credentials.AnonymousCredentials()
+        load_creds.return_value = (file_creds, None)
+        adc.return_value = (creds, None)
+        client = client_class(client_options=options, transport=transport_name)
+        create_channel.assert_called_with(
+            "cloudkms.googleapis.com:443",
+            credentials=file_creds,
+            credentials_file=None,
+            quota_project_id=None,
+            default_scopes=(
+                "https://www.googleapis.com/auth/cloud-platform",
+                "https://www.googleapis.com/auth/cloudkms",
+            ),
+            scopes=None,
+            default_host="cloudkms.googleapis.com",
+            ssl_credentials=None,
+            options=[
+                ("grpc.max_send_message_length", -1),
+                ("grpc.max_receive_message_length", -1),
+            ],
+        )
+
+
 @pytest.mark.parametrize("request_type", [service.ListKeyRingsRequest, dict,])
 def test_list_key_rings(request_type, transport: str = "grpc"):
     client = KeyManagementServiceClient(