tests: manage client and replace value for testing

Author: Laure-di

scaleway/scaleway/instance/v1/tests/cassettes/instance_volume.cassette.yaml

@@ -6,7 +6,6 @@
 from scaleway.instance.v1 import IpType
 from scaleway.instance.v1.custom_api import InstanceUtilsV1API
 from scaleway.instance.v1 import AttachServerVolumeRequestVolumeType
-from scaleway_core.client import Client
 from scaleway.instance.v1.types import (
     VolumeVolumeType,
     BootType,
@@ -15,6 +14,7 @@
 )
 from scaleway.block.v1alpha1 import BlockV1Alpha1API
 from scaleway.block.v1alpha1.types import Volume, CreateVolumeRequestFromEmpty
+from tests.utils import initialize_client_test
 from vcr_config import scw_vcr
 
 server_name = f"test-sdk-python-fixture"
@@ -30,20 +30,11 @@
 
 @pytest.fixture(scope="module")
 def instance_block_api() -> tuple[InstanceUtilsV1API, BlockV1Alpha1API]:
-    if os.getenv("CI", "false") == "true":  # running in GitHub Actions
-        client = Client(
-            access_key="SCWXXXXXXXXXXXXXXXXX",
-            secret_key="11111111-1111-1111-1111-111111111111",
-            default_project_id="11111111-1111-1111-1111-111111111111",
-            default_organization_id="11111111-1111-1111-1111-111111111111",
-        )
-    else:
-        client = Client.from_config_file_and_env()
+    client = initialize_client_test()
     instance_api = InstanceUtilsV1API(client)
     block_api = BlockV1Alpha1API(client)
     return instance_api, block_api
 
-
 @pytest.fixture(scope="module")
 @scw_vcr.use_cassette
 def instance_volume(