17. The apparatus of claim 16 , wherein the stopping condition is one of: an error event comprising detection of at least one error during the execution of the voice call interaction; an interaction transfer event comprising detection of a transfer of the voice call interaction to a customer support representative; an interaction termination event comprising detection of a termination of the voice call interaction; and a goal realization event comprising detection of a realization of a pre-determined goal for testing of the speech application.
16. An apparatus, comprising: at least one processor; and a memory having stored therein machine executable instructions, that when executed by the at least one processor, cause the apparatus to: generate a plurality of test scripts, a test script from among the plurality of test scripts generated by performing: initiating a voice call interaction with a speech application, the speech application comprising a network of interaction nodes; and repeatedly performing, until a stopping condition is encountered, the steps of: executing the voice call interaction with the speech application by traversing through one or more interaction nodes from among the network of interaction nodes until an interaction node requiring a response is encountered; selecting an utterance generation mode corresponding to the interaction node; determining a response to be provided corresponding to the interaction node of the speech application based on the utterance generation mode; and providing the response to the speech application, wherein the test script comprises instructions for traversing interaction nodes involved during a course of the voice call interaction, and, instructions for provisioning one or more responses to the speech application during the course of the voice call interaction; identify one or more test scripts from among the plurality of test scripts based on a pre-determined objective; and provide the one or more test scripts to a user for facilitating testing of the speech application.