• Title/Summary/Keyword: Automata for Equivalent Class

Search Result 1, Processing Time 0.012 seconds

The Design and Implementation of Automata-based Testing Environments for Multi-thread Java Programs (Java 다중 스레드 프로그램을 위한 오토마타 기반 테스팅 환경의 설계 및 구현)

  • 서희석;정인상;김병만;권용래
    • Journal of KIISE:Software and Applications
    • /
    • v.29 no.12
    • /
    • pp.883-894
    • /
    • 2002
  • Classical deterministic testing controls the execution of concurrent programs based on the equivalence between specifications and programs. However, it is not directly applicable to a situation in which synchronization sequences, being valid but infeasible, are taken into account. To resolve this problem, we had proposed automata-based deterministic testing in our previous works, where a concurrent program is executed according to one of the sequences accepted by the automaton recognizing all sequences semantically equivalent to a given sequence. In this paper, we present the automata-based testing environment for Java multi-thread programs, and we design and implement "Deterministic Executor" in the testing environment. "Deterministic Executor" transforms a Java multi-thread program by applying automata-based deterministic testing, the transformed program presents testing results. "Deterministic Executor" uses "Automata Generator", which generates an equivalent automaton of a test sequence, and "Replay Controller", which controls the execution of programs according to the sequence accepted by the automaton. By illustrating automata-based testing procedures with a gas station example, we show how the proposed approach does works in a Java multi-threaded program.roach does works in a Java multi-threaded program.