Application developers may want to test their code with simulated responses, including errors, from an object of type InstanceAdminClient. To do so, construct an object of type InstanceAdminClient with an instance of this class. Then use the Google Test framework functions to program the behavior of this mock.
See Also
This example for how to test your application with GoogleTest. While the example showcases types from the BigQuery library, the underlying principles apply for any pair of *Client and *Connection.
Functions
virtual options()
This function is implemented using gMock's MOCK_METHOD().
Consult the gMock documentation to use this mock in your tests.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThis webpage details the \u003ccode\u003eMockInstanceAdminConnection\u003c/code\u003e class, which is designed to facilitate testing of \u003ccode\u003eInstanceAdminClient\u003c/code\u003e behavior by simulating responses and errors.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockInstanceAdminConnection\u003c/code\u003e class provides a range of virtual functions for managing instance configurations and instances, all implemented using gMock's \u003ccode\u003eMOCK_METHOD()\u003c/code\u003e to allow for customized mock behavior in tests.\u003c/p\u003e\n"],["\u003cp\u003eUsers can test their applications by using this mock class to set up expected behavior and outcomes, as outlined in the provided BigQuery example.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage displays the current latest release candidate, version 2.37.0-rc, and lists all previous versions down to 2.11.0, with links to each version's documentation.\u003c/p\u003e\n"]]],[],null,["# Class MockInstanceAdminConnection (2.11.0)\n\nVersion 2.11.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.41.0](/cpp/docs/reference/spanner/2.41.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.40.0](/cpp/docs/reference/spanner/2.40.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.39.0](/cpp/docs/reference/spanner/2.39.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.38.0](/cpp/docs/reference/spanner/2.38.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.37.0](/cpp/docs/reference/spanner/2.37.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.36.0](/cpp/docs/reference/spanner/2.36.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.35.0](/cpp/docs/reference/spanner/2.35.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.34.0](/cpp/docs/reference/spanner/2.34.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.33.0](/cpp/docs/reference/spanner/2.33.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.32.0](/cpp/docs/reference/spanner/2.32.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.31.0](/cpp/docs/reference/spanner/2.31.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.30.0](/cpp/docs/reference/spanner/2.30.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.29.0](/cpp/docs/reference/spanner/2.29.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.28.0](/cpp/docs/reference/spanner/2.28.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.27.0](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.26.0](/cpp/docs/reference/spanner/2.26.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.25.1](/cpp/docs/reference/spanner/2.25.1/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.24.0](/cpp/docs/reference/spanner/2.24.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.23.0](/cpp/docs/reference/spanner/2.23.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.22.1](/cpp/docs/reference/spanner/2.22.1/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.21.0](/cpp/docs/reference/spanner/2.21.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.20.0](/cpp/docs/reference/spanner/2.20.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.19.0](/cpp/docs/reference/spanner/2.19.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.18.0](/cpp/docs/reference/spanner/2.18.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.17.0](/cpp/docs/reference/spanner/2.17.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.16.0](/cpp/docs/reference/spanner/2.16.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.15.1](/cpp/docs/reference/spanner/2.15.1/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.14.0](/cpp/docs/reference/spanner/2.14.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.13.0](/cpp/docs/reference/spanner/2.13.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.12.0](/cpp/docs/reference/spanner/2.12.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection)\n- [2.11.0](/cpp/docs/reference/spanner/2.11.0/classgoogle_1_1cloud_1_1spanner__admin__mocks_1_1MockInstanceAdminConnection) \nA class to mock `InstanceAdminConnection`. \nApplication developers may want to test their code with simulated responses, including errors, from an object of type `InstanceAdminClient`. To do so, construct an object of type `InstanceAdminClient` with an instance of this class. Then use the Google Test framework functions to program the behavior of this mock.\n\n###### See Also\n\n[This example](https://googleapis.dev/cpp/google-cloud-bigquery/2.11.0/bigquery-read-mock.html) for how to test your application with GoogleTest. While the example showcases types from the BigQuery library, the underlying principles apply for any pair of `*Client` and `*Connection`.\n\nFunctions\n---------\n\n### virtual options()\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual ListInstanceConfigs(google::spanner::admin::instance::v1::ListInstanceConfigsRequest)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual GetInstanceConfig(google::spanner::admin::instance::v1::GetInstanceConfigRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual CreateInstanceConfig(google::spanner::admin::instance::v1::CreateInstanceConfigRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual UpdateInstanceConfig(google::spanner::admin::instance::v1::UpdateInstanceConfigRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual DeleteInstanceConfig(google::spanner::admin::instance::v1::DeleteInstanceConfigRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual ListInstanceConfigOperations(google::spanner::admin::instance::v1::ListInstanceConfigOperationsRequest)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual ListInstances(google::spanner::admin::instance::v1::ListInstancesRequest)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual GetInstance(google::spanner::admin::instance::v1::GetInstanceRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual CreateInstance(google::spanner::admin::instance::v1::CreateInstanceRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual UpdateInstance(google::spanner::admin::instance::v1::UpdateInstanceRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual DeleteInstance(google::spanner::admin::instance::v1::DeleteInstanceRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual SetIamPolicy(google::iam::v1::SetIamPolicyRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual GetIamPolicy(google::iam::v1::GetIamPolicyRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests.\n\n### virtual TestIamPermissions(google::iam::v1::TestIamPermissionsRequest const \\&)\n\nThis function is implemented using [gMock](https://google.github.io/googletest)'s `MOCK_METHOD()`.\nConsult the gMock documentation to use this mock in your tests."]]
