Function observerTest

src/test/unit/mutation_observer_test.js:30–36

(name, options = {}, callback)

}

const observerTest = (name, options = {}, callback) => {
  test(name, async () => {
    install(options.html)
    await callback()
    uninstall()
  })
}

testGroup("MutationObserver", () => {
  observerTest("add character", { html: "a" }, async () => {