Generalized Goodness-of-Fit Test for Progressive Type-II Censored Data // Implements a generalized goodness-of-fit test based on spacings for general progressive Type-II censored data. The test statistic is based on the work of Qin et al. (2022) doi:10.1080/02664763.2020.1821613 and extends the methodology of Balakrishnan et al. (2003) doi:10.1007/978-1-4612-0103-8_8. Users can test data against any distribution by providing custom pdf, cdf, and survival functions. The package supports both normal approximation and Monte Carlo simulation approaches for computing p-values and critical values.