tests/testthat/test-golem-recommended.R

In martaint/InterCellar: InterCellar: an R-Shiny app for interactive analysis and exploration of cell-cell communication in single-cell transcriptomics

test_that("app ui", {
  ui <- app_ui()
  golem::expect_shinytaglist(ui)
  # Check that formals have not been removed
  fmls <- formals(app_ui)
  for (i in c("request")){
    expect_true(i %in% names(fmls))
  }
})

test_that("app server", {
  server <- app_server
  expect_is(server, "function")
  # Check that formals have not been removed
  fmls <- formals(app_server)
  for (i in c("input", "output", "session")){
    expect_true(i %in% names(fmls))
  }
})

# Configure this test to fit your need
test_that(
  "app launches",{
    skip_if_not(interactive())
    golem::expect_running(sleep = 5)
  }
)