tests/testthat/test-react.R

In shinybrms: Graphical User Interface ('shiny' App) for 'brms'

library(shinytest)

test_that(paste(
  "the app does not crash when switching the dataset after having selected",
  "outcome and distributional family (but no predictors) for the initial dataset."
), {
  skip_on_cran()
  skip_if_not_installed("lme4")
  skip_if_not_installed("MASS")
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "switchData_outcome.R"))
})

test_that(paste(
  "the app does not crash when switching to a dataset which differs from",
  "the initial dataset only in the name of a predictor variable."
), {
  skip_on_cran()
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "switchData_pred.R"))
})

test_that("uploading another dataset (here: the same dataset again) resets the custom priors.", {
  skip_on_cran()
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "switchData_same.R"))
})

test_that(paste(
  "switching to a dataset which differs from the initial dataset only in some values of the variables",
  "causes the default priors to be recomputed correctly and the custom priors to be reset."
), {
  skip_on_cran()
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "switchData_value.R"))
})

test_that(paste(
  "the app does not crash and the default priors are reset when switching the dataset after",
  "having built a working model for the initial dataset."
), {
  skip_on_cran()
  skip_if_not_installed("lme4")
  skip_if_not_installed("MASS")
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "switchData_prior.R"))
})

test_that("clearing the outcome resets the priors.", {
  skip_on_cran()
  skip_if_not_installed("MASS")
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "clearOutcome.R"))
})

test_that("clearing the distributional family resets the priors.", {
  skip_on_cran()
  skip_if_not_installed("MASS")
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "clearFamily.R"))
})

test_that("clearing the example dataset resets the priors, the selected outcome, and the selected predictors.", {
  skip_on_cran()
  skip_if_not_installed("MASS")
  
  shinytest::installDependencies()
  app_path <- system.file("shinybrms_app", package = "shinybrms")
  shinytest::expect_pass(shinytest::testApp(app_path, testnames = "clearData.R"))
})