Can one test Support v7 SearchView with Espresso on Android

For some reason on click() doesn't work for me.

I used this extension of expression for searchViews, written in kotlin:

 class SearchViewActionExtension {

    companion object {
        fun submitText(text: String): ViewAction {
            return object : ViewAction {
                override fun getConstraints(): Matcher<View> {
                    return allOf(isDisplayed(), isAssignableFrom(SearchView::class.java))
                }

                override fun getDescription(): String {
                    return "Set text and submit"
                }

                override fun perform(uiController: UiController, view: View) {
                    (view as SearchView).setQuery(text, true) //submit=true will fire search
                }
            }
        }
        fun typeText(text: String): ViewAction {
            return object : ViewAction {
                override fun getConstraints(): Matcher<View> {
                    return allOf(isDisplayed(), isAssignableFrom(SearchView::class.java))
                }

                override fun getDescription(): String {
                    return "Set text"
                }

                override fun perform(uiController: UiController, view: View) {
                    (view as SearchView).setQuery(text, false)
                }
            }
        }
    }
}

By calling setQuery with true for submit parameter it fires search right after.

Usage:

onView(withId(R.id.search_box))
            .perform(SearchViewActionExtension.submitText("search text"))

The solution depends on the initial state of the SearchView.If it is collapsed, you have to open it first:

onView(withId(R.id.your_search_menu_id)).perform(click());

Then you can type into it.

There are two ways:

1. By search autocomplete id, which is public

   onView(withId(android.support.design.R.id.search_src_text)).perform(typeText("something"));
   

2. By using the fact, that it is AutoCompleteTextView

   onView(isAssignableFrom(AutoCompleteTextView.class)).perform(typeText("something"));