Application developers may want to test their code with simulated responses, including errors, from an object of type CloudBillingClient. To do so, construct an object of type CloudBillingClient 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"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eMockCloudBillingConnection\u003c/code\u003e class is 2.37.0-rc, with previous versions ranging down to 2.11.0 available.\u003c/p\u003e\n"],["\u003cp\u003eThis class allows application developers to test their code using simulated responses, including errors, from a \u003ccode\u003eCloudBillingClient\u003c/code\u003e object.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockCloudBillingConnection\u003c/code\u003e class implements several virtual functions using gMock's \u003ccode\u003eMOCK_METHOD()\u003c/code\u003e, including operations for billing accounts and project billing information.\u003c/p\u003e\n"],["\u003cp\u003eIt provides methods for interacting with billing accounts like getting, listing, updating, creating, and moving, as well as managing project billing information through getting, listing, and updating.\u003c/p\u003e\n"],["\u003cp\u003eThis mock object can be used to set and get IAM policies, and to test permissions using the Google Test framework.\u003c/p\u003e\n"]]],[],null,["# Class MockCloudBillingConnection (2.42.0-rc)\n\nVersion latestkeyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/billing/latest/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.41.0](/cpp/docs/reference/billing/2.41.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.40.0](/cpp/docs/reference/billing/2.40.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.39.0](/cpp/docs/reference/billing/2.39.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.38.0](/cpp/docs/reference/billing/2.38.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.37.0](/cpp/docs/reference/billing/2.37.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.36.0](/cpp/docs/reference/billing/2.36.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.35.0](/cpp/docs/reference/billing/2.35.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.34.0](/cpp/docs/reference/billing/2.34.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.33.0](/cpp/docs/reference/billing/2.33.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.32.0](/cpp/docs/reference/billing/2.32.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.31.0](/cpp/docs/reference/billing/2.31.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.30.0](/cpp/docs/reference/billing/2.30.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.29.0](/cpp/docs/reference/billing/2.29.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.28.0](/cpp/docs/reference/billing/2.28.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.27.0](/cpp/docs/reference/billing/2.27.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.26.0](/cpp/docs/reference/billing/2.26.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.25.1](/cpp/docs/reference/billing/2.25.1/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.24.0](/cpp/docs/reference/billing/2.24.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.23.0](/cpp/docs/reference/billing/2.23.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.22.1](/cpp/docs/reference/billing/2.22.1/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.21.0](/cpp/docs/reference/billing/2.21.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.20.0](/cpp/docs/reference/billing/2.20.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.19.0](/cpp/docs/reference/billing/2.19.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.18.0](/cpp/docs/reference/billing/2.18.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.17.0](/cpp/docs/reference/billing/2.17.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.16.0](/cpp/docs/reference/billing/2.16.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.15.1](/cpp/docs/reference/billing/2.15.1/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.14.0](/cpp/docs/reference/billing/2.14.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.13.0](/cpp/docs/reference/billing/2.13.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.12.0](/cpp/docs/reference/billing/2.12.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection)\n- [2.11.0](/cpp/docs/reference/billing/2.11.0/classgoogle_1_1cloud_1_1billing__v1__mocks_1_1MockCloudBillingConnection) \nA class to mock `CloudBillingConnection`. \nApplication developers may want to test their code with simulated responses, including errors, from an object of type `CloudBillingClient`. To do so, construct an object of type `CloudBillingClient` 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://cloud.google.com/cpp/docs/reference/bigquery/latest/bigquery-read-mock) 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 GetBillingAccount(google::cloud::billing::v1::GetBillingAccountRequest 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 ListBillingAccounts(google::cloud::billing::v1::ListBillingAccountsRequest)\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 UpdateBillingAccount(google::cloud::billing::v1::UpdateBillingAccountRequest 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 CreateBillingAccount(google::cloud::billing::v1::CreateBillingAccountRequest 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 ListProjectBillingInfo(google::cloud::billing::v1::ListProjectBillingInfoRequest)\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 GetProjectBillingInfo(google::cloud::billing::v1::GetProjectBillingInfoRequest 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 UpdateProjectBillingInfo(google::cloud::billing::v1::UpdateProjectBillingInfoRequest 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 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 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.\n\n### virtual MoveBillingAccount(google::cloud::billing::v1::MoveBillingAccountRequest 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."]]
