Fix broken trace exporter test

Author: DylanRussell

opentelemetry-exporter-gcp-trace/tests/test_cloud_trace_exporter.py

@@ -550,6 +550,7 @@ def test_extract_multiple_links(self):
             ),
             attributes={"illegal_attr_value": dict(), "int_attr_value": 123},
         )
+        print(link3.attributes)
         self.assertEqual(
             _extract_links([link1, link2, link3]),
             ProtoSpan.Links(
@@ -571,6 +572,7 @@ def test_extract_multiple_links(self):
                         "span_id": span_id2,
                         "type": "TYPE_UNSPECIFIED",
                         "attributes": {
+                            "dropped_attributes_count": 1,
                             "attribute_map": {
                                 "int_attr_value": AttributeValue(int_value=123)
                             },

tox.ini

@@ -75,9 +75,7 @@ changedir = {env:PACKAGE_NAME}
 commands_pre =
   {toxinidir}/get_mock_server.sh {envbindir}
 
-commands = 
-  pip freeze 
-  pytest --junitxml={[constants]test_results_dir}/{envname}/junit.xml {posargs}
+commands = pytest --junitxml={[constants]test_results_dir}/{envname}/junit.xml {posargs}
 
 allowlist_externals = 
   bash