In various embodiments, a method, system, and computer program product for injecting error code include logic and/or program instructions configured to determine, by a local processor, critical points in executing code of software under test on a remote system, build, by the local processor, a testcase to invoke the software under test on the remote system, determine, by the local processor, an appropriate response action for each critical point based on an error encountered at each critical point as reported by a remote processor of the remote system, cause, by the local processor, the remote processor to inject a critical point segment into the executing code at a corresponding critical point, and receive, by the local processor, a unique identifier of each critical point segment output by the remote processor in response to injecting the critical point segment into the executing code.