Improved testing of errors / warnings / messages

[jpdunc23]

simChef/tests/testthat/test-experiment.R

Line 1018 in b3d71a2

test_that("Capturing errors, warnings, and messages from user-defined functions works as expected", {

This block of tests appears to create non-deterministic snapshots, so for now it's skipped. We should switch to non-snapshot testing once #141 is complete.