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# File tests/testthat/test-checkpointing.R in package ergm, part of the
# Statnet suite of packages for network analysis, https://statnet.org .
#
# This software is distributed under the GPL-3 license. It is free,
# open source, and has the attribution requirements (GPL Section 7) at
# https://statnet.org/attribution .
#
# Copyright 2003-2023 Statnet Commons
################################################################################
data(florentine)
set.seed(0)
niterations <- NA
tmpf <- tempfile()
checkpoints <- paste0(tmpf,"_00",1:2,".RData")
withr::local_file(checkpoints, {
test_that("checkpointing works",{
expect_error(gest <- ergm(flomarriage ~ kstar(1:2) + absdiff("wealth") + triangle, control=control.ergm(MCMLE.termination="Hummel", checkpoint=paste0(tmpf,"_%03d.RData"))), NA)
niterations <<- gest$iterations # Save for later.
})
test_that("resuming works",{
gest <- ergm(flomarriage ~ kstar(1:2) + absdiff("wealth") + triangle, control=control.ergm(MCMLE.termination="Hummel", resume=sprintf(paste0(tmpf,"_%03d.RData"),niterations)))
expect_equal(gest$iterations, 1) # It'll take at least 2 if resume fails.
})
})
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