712 - {shinytest2} for tm_g_distribution (#726)

Part of #712

---------

Signed-off-by: André Veríssimo <211358+averissimo@users.noreply.github.com>
Co-authored-by: André Veríssimo <211358+averissimo@users.noreply.github.com>
Co-authored-by: Marcin <133694481+m7pr@users.noreply.github.com>

tests/testthat/test-shinytest2-tm_g_distribution.R

@@ -0,0 +1,129 @@
+app_driver_tm_g_distribution <- function() {
+  data <- teal.data::teal_data()
+  data <- within(data, {
+    ADSL <- rADSL
+  })
+  teal.data::datanames(data) <- c("ADSL")
+  teal.data::join_keys(data) <- teal.data::default_cdisc_join_keys[teal.data::datanames(data)]
+
+  vars1 <- teal.transform::choices_selected(
+    teal.transform::variable_choices(data[["ADSL"]], c("ARM", "COUNTRY", "SEX")),
+    selected = NULL
+  )
+
+  init_teal_app_driver(
+    data = data,
+    modules = tm_g_distribution(
+      dist_var = teal.transform::data_extract_spec(
+        dataname = "ADSL",
+        select = teal.transform::select_spec(
+          choices = teal.transform::variable_choices(data[["ADSL"]], c("AGE", "BMRKR1")),
+          selected = "BMRKR1",
+          multiple = FALSE,
+          fixed = FALSE
+        )
+      ),
+      strata_var = teal.transform::data_extract_spec(
+        dataname = "ADSL",
+        filter = teal.transform::filter_spec(
+          vars = vars1,
+          multiple = TRUE
+        )
+      ),
+      group_var = teal.transform::data_extract_spec(
+        dataname = "ADSL",
+        filter = teal.transform::filter_spec(
+          vars = vars1,
+          multiple = TRUE
+        )
+      ),
+      ggplot2_args = teal.widgets::ggplot2_args(
+        labs = list(subtitle = "Plot generated by Distribution Module")
+      ),
+      ggtheme = "classic",
+      freq = TRUE,
+      bins = 36,
+    )
+  )
+}
+
+testthat::test_that("e2e - tm_g_distribution: module is initialised with the specified defaults", {
+  skip_if_too_deep(5)
+
+  app_driver <- app_driver_tm_g_distribution()
+
+  app_driver$expect_no_shiny_error()
+
+  # Encodings in the Histogram tab
+  testthat::expect_equal(app_driver$get_active_module_input("dist_i-dataset_ADSL_singleextract-select"), "BMRKR1")
+  testthat::expect_null(app_driver$get_active_module_input("group_i-dataset_ADSL_singleextract-filter1-col"))
+  testthat::expect_null(app_driver$get_active_module_input("group_i-dataset_ADSL_singleextract-filter1-vals"))
+  testthat::expect_null(app_driver$get_active_module_input("strata_i-dataset_ADSL_singleextract-filter1-col"))
+  testthat::expect_equal(app_driver$get_active_module_input("bins"), 36)
+  testthat::expect_equal(app_driver$get_active_module_input("main_type"), "Frequency")
+  testthat::expect_equal(app_driver$get_active_module_input("ggtheme"), "classic")
+  testthat::expect_equal(app_driver$get_active_module_input("tabs"), "Histogram")
+
+  # Encodings in the QQplot tab
+  app_driver$set_active_module_input("tabs", "QQplot")
+  testthat::expect_true(app_driver$get_active_module_input("qq_line"))
+
+  app_driver$stop()
+})
+
+testthat::test_that("e2e - tm_g_distribution: histogram encoding inputs produce output without validation errors", {
+  skip_if_too_deep(5)
+
+  app_driver <- app_driver_tm_g_distribution()
+
+  app_driver$set_active_module_input("main_type", "Density")
+  app_driver$expect_validation_error() # test needs to be updated to remove validation error
+  app_driver$set_active_module_input("dist_tests", "Shapiro-Wilk")
+
+  # Encodings in the Histogram tab
+  app_driver$set_active_module_input("group_i-dataset_ADSL_singleextract-filter1-col", "ARM")
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input(
+    "group_i-dataset_ADSL_singleextract-filter1-vals",
+    c("A: Drug X", "C: Combination")
+  )
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("scales_type", "Free")
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("strata_i-dataset_ADSL_singleextract-filter1-col", "SEX")
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("strata_i-dataset_ADSL_singleextract-filter1-vals", c("F"))
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("bins", 50)
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("add_dens", FALSE)
+  app_driver$expect_no_validation_error()
+
+  app_driver$stop()
+})
+
+testthat::test_that("e2e - tm_g_distribution: qqplot encoding inputs produce output without validation errors", {
+  skip_if_too_deep(5)
+
+  app_driver <- app_driver_tm_g_distribution()
+
+  # Encodings in the QQplot tab
+  app_driver$set_active_module_input("main_type", "Density")
+  app_driver$expect_validation_error() # test needs to be updated to remove validation error
+  app_driver$set_active_module_input("dist_tests", "Shapiro-Wilk")
+  app_driver$expect_no_validation_error()
+
+  app_driver$set_active_module_input("tabs", "QQplot")
+  app_driver$set_active_module_input("t_dist", "normal")
+  app_driver$click(NS(app_driver$active_module_ns(), "params_reset"))
+
+  app_driver$expect_no_validation_error()
+
+  app_driver$stop()
+})