tests/testthat/test-add_files.R

In ThinkR-open/shinytemplate: A Framework for Robust Shiny Applications

expect_add_file <- function(
  fun,
  ext,
  pak,
  fp
) {
  fun_nms <- deparse(substitute(fun))

  name <- rand_name()
  # Be sure to remove all files in case there are
  remove_files("inst/app/www", ext)

  # Checking that check_name_length is throwing an error
  expect_error(
    fun(c("a", "b")),
  )

  # Launch the function
  fun(name, pkg = pak, open = FALSE)
  if (fun_nms == "add_js_input_binding") {
    name <- sprintf("input-%s", name)
  }
  if (fun_nms == "add_js_output_binding") {
    name <- sprintf("output-%s", name)
  }
  # Test that the file exists
  expect_exists(
    file.path(
      "inst/app/www",
      paste0(name, ".", ext)
    )
  )
  # Check that the file exsts
  ff <- list.files("inst/app/www/", pattern = name, full.names = TRUE)
  expect_equal(tools::file_ext(ff), ext)

  # Check content is not over-added
  l_ff <- length(readLines(ff))
  fun(name, pkg = pak, open = FALSE)
  expect_equal(l_ff, length(readLines(ff)))

  # Try another file in another dir
  bis <- paste0(name, rand_name())
  fun(bis, pkg = pak, open = FALSE, dir = normalizePath(fp))
  expect_exists(normalizePath(fp))
  ff <- list.files(
    normalizePath(fp),
    pattern = bis,
    full.names = TRUE
  )
  expect_equal(tools::file_ext(ff), ext)

  # Check that the extension is removed
  name <- rand_name()
  ter <- paste0(name, ".", ext)
  fun(
    ter,
    pkg = pkg,
    open = FALSE
  )
  expect_exists(
    file.path("inst/app/www")
  )
  ff <- list.files(
    "inst/app/www/",
    pattern = ter,
    full.names = TRUE
  )
  expect_equal(tools::file_ext(ff), ext)

  # Check content is not over-added
  l_ff <- length(readLines(ff))
  fun(name, pkg = pak, open = FALSE)
  expect_equal(l_ff, length(readLines(ff)))

  remove_files("inst/app/www", ext)
}

test_that("add_files", {
  with_dir(pkg, {
    expect_add_file(
      add_css_file,
      ext = "css",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_sass_file,
      ext = "sass",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_js_file,
      ext = "js",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_js_handler,
      ext = "js",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_js_input_binding,
      ext = "js",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_js_output_binding,
      ext = "js",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_html_template,
      ext = "html",
      pak = pkg,
      fp = fp
    )
    expect_add_file(
      add_partial_html_template,
      ext = "html",
      pak = pkg,
      fp = fp
    )
  })
})

test_that("add_ui_server_files", {
  with_dir(pkg, {
    remove_file("inst/app/ui.R")
    remove_file("inst/app/server.R")
    expect_warning(add_ui_server_files(pkg = pkg))
    expect_true(file.exists("inst/app/ui.R"))
    expect_true(file.exists("inst/app/server.R"))
    script <- list.files("inst/app/", pattern = "ui")
    expect_equal(tools::file_ext(script), "R")
    script <- list.files("inst/app/", pattern = "server")
    expect_equal(tools::file_ext(script), "R")

    # Check content is not over-added
    l_ui <- length(
      readLines(
        list.files(
          "inst/app/",
          pattern = "ui",
          full.names = TRUE
        )
      )
    )
    l_server <- length(
      readLines(
        list.files(
          "inst/app/",
          pattern = "server",
          full.names = TRUE
        )
      )
    )
    expect_warning(
      add_ui_server_files(pkg = pkg)
    )
    expect_equal(
      l_ui,
      length(
        readLines(
          list.files(
            "inst/app/",
            pattern = "ui",
            full.names = TRUE
          )
        )
      )
    )
    expect_equal(
      l_server,
      length(
        readLines(
          list.files(
            "inst/app/",
            pattern = "server",
            full.names = TRUE
          )
        )
      )
    )

    expect_warning(
      add_ui_server_files(pkg = pkg)
    )

    remove_file("inst/app/ui.R")
    remove_file("inst/app/server.R")
  })
})