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"]],[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis page documents the \u003ccode\u003eMockLanguageServiceConnection\u003c/code\u003e class, which is designed to facilitate testing of \u003ccode\u003eLanguageServiceClient\u003c/code\u003e by simulating responses and potential errors.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of this class is 2.37.0-rc, and the page provides links to documentation for several other versions, ranging from 2.36.0 down to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockLanguageServiceConnection\u003c/code\u003e class uses gMock to mock 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, allowing developers to program mock behaviors for these functions.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMockLanguageServiceConnection\u003c/code\u003e class's mocked methods provide testing of \u003ccode\u003e*Client\u003c/code\u003e and \u003ccode\u003e*Connection\u003c/code\u003e pairs, and an example of BigQuery tests is linked to showcase the underlying principles of testing.\u003c/p\u003e\n"],["\u003cp\u003eeach of the listed functions, such as \u003ccode\u003eAnalyzeSentiment\u003c/code\u003e and \u003ccode\u003eAnalyzeEntities\u003c/code\u003e, take a \u003ccode\u003erequest\u003c/code\u003e parameter that is a const reference to a corresponding language v1 request object, and returns a \u003ccode\u003eStatusOr\u003c/code\u003e object containing the corresponding language v1 response object.\u003c/p\u003e\n"]]],[],null,[]]
