tests/testthat/test-statmismatch.R

In statnet/ergm.ego: Fit, Simulate and Diagnose Exponential-Family Random Graph Models to Egocentrically Sampled Network Data

#  File tests/testthat/test-statmismatch.R in package ergm.ego, 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 2015-2023 Statnet Commons
################################################################################

egos <- data.frame(egoIDcol = 1:12, x = rep(1:3, 4))
alters <- data.frame(egoIDcol = sample(1:12, 24, TRUE), x = rep(1:3, 8))

e <- egor(egos=egos,
          alters=alters,
          ID.vars=list(ego="egoIDcol"))

test_that("no stat mismatch error", {             
  expect_error(ergm.ego(e ~ nodefactor("x")), NA)
})

test_that("stat mismatch error", {
  e$alter$x[1] <- 4
  
  expect_error(ergm.ego(e ~ nodefactor("x")), "There appears to be a mismatch between estimated statistic and the sufficient statistic of the ERGM:")
})