1. A computer system for executing a system application test case of a runtime system in a server integrated environment, the computer system comprising: one or more computer processors; one or more computer-readable storage media; program instructions stored on the computer-readable storage media for execution by at least one of the one or more processors, the program instructions comprising: instructions to establish, by an integrated server environment, a transmission control protocol connection between a client development environment and a server integrated environment, based on a request, in the client development environment, to initiate execution of the system application test case, the instructions to establish are performed in parallel between the client development environment and the server integrated environment; instructions to issue, by the integrated server environment, a data transfer protocol transmission request to the server integrated environment for a description script of the system application test case, the data transfer protocol transmission request being Hypertext Transfer Protocol; instructions to transmit, by the integrated server environment, an extensible markup language of the requested description script to the client development environment, via a server component of the server integrated environment; instructions to issue, by the integrated server environment, a data transfer protocol transmission request to execute the test of system application test case in the server integrated environment, based on the transmitted description script; instructions to execute, by the integrated server environment, the system application test case in the server integrated environment, wherein the server component compiles test results of the executed system application test case in an extensible markup language document; and instructions to transmit, by the integrated server environment, the extensible markup language document of the compiled test results to the client development environment for display, the extensible markup language document comprising a plurality of logs identifying a system application test case condition.