Application developers may want to test their code with simulated responses, including errors, from an object of type LanguageServiceClient. To do so, construct an object of type LanguageServiceClient 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 2025-08-28 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eMockLanguageServiceConnection\u003c/code\u003e class allows developers to test their code with simulated responses, including errors, from a \u003ccode\u003eLanguageServiceClient\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe class uses gMock's \u003ccode\u003eMOCK_METHOD()\u003c/code\u003e for implementation, enabling the mocking of various functions like \u003ccode\u003eoptions()\u003c/code\u003e, \u003ccode\u003eAnalyzeSentiment()\u003c/code\u003e, \u003ccode\u003eAnalyzeEntities()\u003c/code\u003e, \u003ccode\u003eAnalyzeEntitySentiment()\u003c/code\u003e, \u003ccode\u003eAnalyzeSyntax()\u003c/code\u003e, \u003ccode\u003eClassifyText()\u003c/code\u003e, \u003ccode\u003eModerateText()\u003c/code\u003e, and \u003ccode\u003eAnnotateText()\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the API is 2.37.0-rc, and the webpage provides links to documentation for older versions, ranging down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe class is used in combination with the Google Test framework to program the behavior of the mock and provide test scenarios for the application code.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockLanguageServiceConnection\u003c/code\u003e class works as a pair with the \u003ccode\u003e*Client\u003c/code\u003e, allowing the application developer to simulate various responses and test their application code effectively.\u003c/p\u003e\n"]]],[],null,["# Class MockLanguageServiceConnection (2.42.0-rc)\n\nVersion latestkeyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/language/latest/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.41.0](/cpp/docs/reference/language/2.41.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.40.0](/cpp/docs/reference/language/2.40.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.39.0](/cpp/docs/reference/language/2.39.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.38.0](/cpp/docs/reference/language/2.38.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.37.0](/cpp/docs/reference/language/2.37.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.36.0](/cpp/docs/reference/language/2.36.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.35.0](/cpp/docs/reference/language/2.35.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.34.0](/cpp/docs/reference/language/2.34.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.33.0](/cpp/docs/reference/language/2.33.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.32.0](/cpp/docs/reference/language/2.32.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.31.0](/cpp/docs/reference/language/2.31.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.30.0](/cpp/docs/reference/language/2.30.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.29.0](/cpp/docs/reference/language/2.29.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.28.0](/cpp/docs/reference/language/2.28.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.27.0](/cpp/docs/reference/language/2.27.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.26.0](/cpp/docs/reference/language/2.26.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.25.1](/cpp/docs/reference/language/2.25.1/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.24.0](/cpp/docs/reference/language/2.24.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.23.0](/cpp/docs/reference/language/2.23.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.22.1](/cpp/docs/reference/language/2.22.1/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.21.0](/cpp/docs/reference/language/2.21.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.20.0](/cpp/docs/reference/language/2.20.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.19.0](/cpp/docs/reference/language/2.19.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.18.0](/cpp/docs/reference/language/2.18.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.17.0](/cpp/docs/reference/language/2.17.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.16.0](/cpp/docs/reference/language/2.16.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.15.1](/cpp/docs/reference/language/2.15.1/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.14.0](/cpp/docs/reference/language/2.14.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.13.0](/cpp/docs/reference/language/2.13.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.12.0](/cpp/docs/reference/language/2.12.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection)\n- [2.11.0](/cpp/docs/reference/language/2.11.0/classgoogle_1_1cloud_1_1language__v1__mocks_1_1MockLanguageServiceConnection) \nA class to mock `LanguageServiceConnection`. \nApplication developers may want to test their code with simulated responses, including errors, from an object of type `LanguageServiceClient`. To do so, construct an object of type `LanguageServiceClient` 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 AnalyzeSentiment(google::cloud::language::v1::AnalyzeSentimentRequest 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 AnalyzeEntities(google::cloud::language::v1::AnalyzeEntitiesRequest 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 AnalyzeEntitySentiment(google::cloud::language::v1::AnalyzeEntitySentimentRequest 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 AnalyzeSyntax(google::cloud::language::v1::AnalyzeSyntaxRequest 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 ClassifyText(google::cloud::language::v1::ClassifyTextRequest 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 ModerateText(google::cloud::language::v1::ModerateTextRequest 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 AnnotateText(google::cloud::language::v1::AnnotateTextRequest 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."]]
