[logging] chore: remove gcp-devrel-py-tools [(#3477)](GoogleCloudPlatform/python-docs-samples#3477)

Author: Takashi Matsuo

samples/snippets/export_test.py

@@ -16,12 +16,13 @@
 import random
 import string
 
-from gcp_devrel.testing import eventually_consistent
+import backoff
 from google.cloud import logging
 import pytest
 
 import export
 
+
 BUCKET = os.environ['CLOUD_STORAGE_BUCKET']
 TEST_SINK_NAME_TMPL = 'example_sink_{}'
 TEST_SINK_FILTER = 'severity>=CRITICAL'
@@ -53,12 +54,14 @@ def example_sink():
 
 
 def test_list(example_sink, capsys):
-    @eventually_consistent.call
-    def _():
+    @backoff.on_exception(backoff.expo, AssertionError, max_time=60)
+    def eventually_consistent_test():
         export.list_sinks()
         out, _ = capsys.readouterr()
         assert example_sink.name in out
 
+    eventually_consistent_test()
+
 
 def test_create(capsys):
     sink_name = TEST_SINK_NAME_TMPL.format(_random_id())

samples/snippets/requirements-test.txt

@@ -1,2 +1,2 @@
+backoff==1.10.0
 pytest==5.3.2
-gcp-devrel-py-tools==0.0.15

samples/snippets/snippets_test.py

@@ -12,12 +12,13 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from gcp_devrel.testing import eventually_consistent
+import backoff
 from google.cloud import logging
 import pytest
 
 import snippets
 
+
 TEST_LOGGER_NAME = 'example_log'
 
 
@@ -31,18 +32,20 @@ def example_log():
 
 
 def test_list(example_log, capsys):
-    @eventually_consistent.call
-    def _():
+    @backoff.on_exception(backoff.expo, AssertionError, max_time=120)
+    def eventually_consistent_test():
         snippets.list_entries(TEST_LOGGER_NAME)
         out, _ = capsys.readouterr()
         assert example_log in out
 
+    eventually_consistent_test()
+
 
 def test_write():
     snippets.write_entry(TEST_LOGGER_NAME)
 
 
-def test_delete(example_log):
-    @eventually_consistent.call
-    def _():
-        snippets.delete_logger(TEST_LOGGER_NAME)
+def test_delete(example_log, capsys):
+    snippets.delete_logger(TEST_LOGGER_NAME)
+    out, _ = capsys.readouterr()
+    assert TEST_LOGGER_NAME in out