Dead simple tabs export for Chrome on Android

ChromeTabsSaver.kt

package fboldog.chrometabsaver

import android.content.Intent
import android.support.test.InstrumentationRegistry
import android.support.test.InstrumentationRegistry.getInstrumentation
import android.support.test.uiautomator.UiDevice
import org.junit.Test
import android.support.test.runner.AndroidJUnit4
import android.support.test.uiautomator.UiSelector
import android.util.Log
import org.junit.Assert.assertTrue
import org.junit.runner.RunWith

@RunWith(AndroidJUnit4::class)
class ChromeTabsSaver {

    @Test
    fun listTabs() {
        val urls = mutableListOf<String>()

        val device = UiDevice.getInstance(getInstrumentation());
        device.pressHome();

        val context = InstrumentationRegistry.getContext()
        val intent = context.packageManager.getLaunchIntentForPackage("com.android.chrome")

        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)    // Clear out any previous instances
        context.startActivity(intent)
        device.waitForWindowUpdate("com.android.chrome", 5000)

        val urlBar = device.findObject(UiSelector().resourceId("com.android.chrome:id/url_bar"))
        val toolbar = device.findObject(UiSelector().resourceId("com.android.chrome:id/location_bar"))

        assertTrue(urlBar != null)
        assertTrue(toolbar != null)

        var last = ""
        while(last != urlBar.text) {
            last = urlBar.text
            urls.add(last)
            toolbar.swipeRight(10)
        }

        Log.d(this.javaClass.simpleName, urls.joinToString("\n"))
    }
}