Application developers may want to test their code with simulated responses, including errors from a spanner::InstanceAdminClient. To do so, construct a spanner::InstanceAdminClient with an instance of this class. Then use the Google Test framework functions to program the behavior of this mock.
Functions
GetInstance(GetInstanceParams)
Return the metadata for the given instance.
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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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 used to mock \u003ccode\u003egoogle::cloud::spanner::InstanceAdminConnection\u003c/code\u003e for testing purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockInstanceAdminConnection\u003c/code\u003e allows developers to simulate responses and errors from a \u003ccode\u003espanner::InstanceAdminClient\u003c/code\u003e, using the Google Test framework to control its behavior.\u003c/p\u003e\n"],["\u003cp\u003eThe class provides several functions for testing such as \u003ccode\u003eGetInstance\u003c/code\u003e, \u003ccode\u003eCreateInstance\u003c/code\u003e, \u003ccode\u003eUpdateInstance\u003c/code\u003e, \u003ccode\u003eDeleteInstance\u003c/code\u003e, \u003ccode\u003eGetInstanceConfig\u003c/code\u003e, \u003ccode\u003eListInstanceConfigs\u003c/code\u003e, \u003ccode\u003eListInstances\u003c/code\u003e, \u003ccode\u003eGetIamPolicy\u003c/code\u003e, \u003ccode\u003eSetIamPolicy\u003c/code\u003e, \u003ccode\u003eTestIamPermissions\u003c/code\u003e, and \u003ccode\u003eoptions\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage also includes a list of available versions of the MockInstanceAdminConnection class, ranging from 2.37.0-rc (latest) to 2.11.0.\u003c/p\u003e\n"]]],[],null,["# Class MockInstanceAdminConnection (2.27.0)\n\nVersion 2.27.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.41.0](/cpp/docs/reference/spanner/2.41.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.40.0](/cpp/docs/reference/spanner/2.40.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.39.0](/cpp/docs/reference/spanner/2.39.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.38.0](/cpp/docs/reference/spanner/2.38.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.37.0](/cpp/docs/reference/spanner/2.37.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.36.0](/cpp/docs/reference/spanner/2.36.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.35.0](/cpp/docs/reference/spanner/2.35.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.34.0](/cpp/docs/reference/spanner/2.34.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.33.0](/cpp/docs/reference/spanner/2.33.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.32.0](/cpp/docs/reference/spanner/2.32.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.31.0](/cpp/docs/reference/spanner/2.31.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.30.0](/cpp/docs/reference/spanner/2.30.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.29.0](/cpp/docs/reference/spanner/2.29.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.28.0](/cpp/docs/reference/spanner/2.28.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.27.0](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.26.0](/cpp/docs/reference/spanner/2.26.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.25.1](/cpp/docs/reference/spanner/2.25.1/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.24.0](/cpp/docs/reference/spanner/2.24.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.23.0](/cpp/docs/reference/spanner/2.23.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.22.1](/cpp/docs/reference/spanner/2.22.1/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.21.0](/cpp/docs/reference/spanner/2.21.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.20.0](/cpp/docs/reference/spanner/2.20.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.19.0](/cpp/docs/reference/spanner/2.19.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.18.0](/cpp/docs/reference/spanner/2.18.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.17.0](/cpp/docs/reference/spanner/2.17.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.16.0](/cpp/docs/reference/spanner/2.16.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.15.1](/cpp/docs/reference/spanner/2.15.1/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.14.0](/cpp/docs/reference/spanner/2.14.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.13.0](/cpp/docs/reference/spanner/2.13.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.12.0](/cpp/docs/reference/spanner/2.12.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection)\n- [2.11.0](/cpp/docs/reference/spanner/2.11.0/classgoogle_1_1cloud_1_1spanner__mocks_1_1MockInstanceAdminConnection) \nA class to mock [`google::cloud::spanner::InstanceAdminConnection`](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner_1_1InstanceAdminConnection). \nApplication developers may want to test their code with simulated responses, including errors from a [`spanner::InstanceAdminClient`](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner_1_1InstanceAdminClient). To do so, construct a [`spanner::InstanceAdminClient`](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner_1_1InstanceAdminClient) with an instance of this class. Then use the Google Test framework functions to program the behavior of this mock.\n\nFunctions\n---------\n\n### GetInstance(GetInstanceParams)\n\nReturn the metadata for the given instance. \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### CreateInstance(CreateInstanceParams)\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### UpdateInstance(UpdateInstanceParams)\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### DeleteInstance(DeleteInstanceParams)\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### GetInstanceConfig(GetInstanceConfigParams)\n\nReturn the InstanceConfig with the given name. \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### ListInstanceConfigs(ListInstanceConfigsParams)\n\nReturns a one-pass input range with all the instance configs. \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### ListInstances(ListInstancesParams)\n\nReturns a one-pass input range with all the instances meeting the requirements in `params`. \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### GetIamPolicy(GetIamPolicyParams)\n\nDefine the interface for a google.spanner.v1.DatabaseAdmin.GetIamPolicy RPC. \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### SetIamPolicy(SetIamPolicyParams)\n\nDefine the interface for a google.spanner.v1.DatabaseAdmin.SetIamPolicy RPC. \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### TestIamPermissions(TestIamPermissionsParams)\n\nDefine the interface for a google.spanner.v1.DatabaseAdmin.TestIamPermissions RPC. \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 options()"]]
