test.js

import { Selector } from "testcafe"

fixture`Test Bootstrap Select Dropdown instances with varying plugin parameter combinations for regular selects, multiselects and selects/multiselects with optgroups.`
  .page`http://localhost:8080/tests.html`

let instanceCount = 12

test(`Select (click) a random option from each drop-down menu and ensure the corresponding value is set on the <select> element.`, async t => {
  let i
  for (i = 0; i < instanceCount; i++) {
    let selectElement = Selector("#test_" + i)
    let dropdownButton = Selector("button").withAttribute(
      "id",
      new RegExp("bsd" + (i + 1) + "-[a-z0-9]*-button")
    )
    let dropdownItems = Selector("div")
      .withAttribute("id", new RegExp("bsd" + (i + 1) + "-[a-z0-9]*-container"))
      .find(".dropdown-item")
    let options = selectElement.find("option")
    let length = await options.count
    let n = Math.floor(Math.random() * length)
    let text = await options.nth(n).innerText
    let value = await options.nth(n).value
    console.log(" Test " + i + ': Select "' + text + '" (' + value + ").")
    await t
      .click(dropdownButton)
      .click(dropdownItems.withText(text))
      .expect(selectElement.value)
      .eql(value)
  }
})