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Add ExploreListRootFragment Unit Tests (#4810)
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Madhur Gupta
GitHub
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package fr.free.nrw.commons.explore
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import android.content.Context
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import android.view.LayoutInflater
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import android.view.View
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import android.widget.FrameLayout
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import androidx.fragment.app.FragmentManager
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import androidx.fragment.app.FragmentTransaction
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import com.google.android.material.tabs.TabLayout
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import com.nhaarman.mockitokotlin2.any
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import com.nhaarman.mockitokotlin2.times
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import fr.free.nrw.commons.Media
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import fr.free.nrw.commons.R
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import fr.free.nrw.commons.TestAppAdapter
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import fr.free.nrw.commons.TestCommonsApplication
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import fr.free.nrw.commons.contributions.MainActivity
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import fr.free.nrw.commons.explore.categories.media.CategoriesMediaFragment
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import fr.free.nrw.commons.media.MediaDetailPagerFragment
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import org.junit.Assert
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import org.junit.Before
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.mockito.ArgumentMatchers.anyInt
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import org.mockito.Mock
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import org.mockito.Mockito.`when`
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import org.mockito.Mockito.verify
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import org.mockito.MockitoAnnotations
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import org.powermock.reflect.Whitebox
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import org.robolectric.Robolectric
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import org.robolectric.RobolectricTestRunner
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import org.robolectric.RuntimeEnvironment
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import org.robolectric.annotation.Config
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import org.robolectric.annotation.LooperMode
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import org.wikipedia.AppAdapter
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import java.lang.reflect.Field
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@RunWith(RobolectricTestRunner::class)
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@Config(sdk = [21], application = TestCommonsApplication::class)
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@LooperMode(LooperMode.Mode.PAUSED)
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class ExploreListRootFragmentUnitTest {
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private lateinit var fragment: ExploreListRootFragment
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private lateinit var fragmentManager: FragmentManager
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private lateinit var context: Context
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private lateinit var view: View
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private lateinit var layoutInflater: LayoutInflater
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private lateinit var activity: MainActivity
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private lateinit var exploreFragment: ExploreFragment
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@Mock
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private lateinit var mediaDetails: MediaDetailPagerFragment
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@Mock
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private lateinit var listFragment: CategoriesMediaFragment
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@Mock
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private lateinit var childFragmentManager: FragmentManager
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@Mock
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private lateinit var childFragmentTransaction: FragmentTransaction
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@Mock
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private lateinit var container: FrameLayout
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@Mock
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private lateinit var tabLayout: TabLayout
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@Mock
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private lateinit var viewPager: ParentViewPager
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@Mock
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private lateinit var media: Media
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@Before
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fun setUp() {
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MockitoAnnotations.initMocks(this)
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context = RuntimeEnvironment.application.applicationContext
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AppAdapter.set(TestAppAdapter())
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activity = Robolectric.buildActivity(MainActivity::class.java).create().get()
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fragment = ExploreListRootFragment()
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fragmentManager = activity.supportFragmentManager
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val fragmentTransaction: FragmentTransaction = fragmentManager.beginTransaction()
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fragmentTransaction.add(fragment, null)
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fragmentTransaction.commitNowAllowingStateLoss()
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exploreFragment = ExploreFragment()
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layoutInflater = LayoutInflater.from(activity)
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view = fragment.onCreateView(layoutInflater, null, null) as View
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Whitebox.setInternalState(fragment, "mChildFragmentManager", childFragmentManager)
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Whitebox.setInternalState(fragment, "mParentFragment", exploreFragment)
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Whitebox.setInternalState(fragment, "mediaDetails", mediaDetails)
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Whitebox.setInternalState(fragment, "listFragment", listFragment)
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Whitebox.setInternalState(fragment, "container", container)
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Whitebox.setInternalState(exploreFragment, "tabLayout", tabLayout)
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Whitebox.setInternalState(exploreFragment, "viewPager", viewPager)
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`when`(childFragmentManager.beginTransaction()).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.hide(any())).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.add(anyInt(), any())).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.addToBackStack(any())).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.show(any())).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.replace(anyInt(), any())).thenReturn(childFragmentTransaction)
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`when`(childFragmentTransaction.remove(any())).thenReturn(childFragmentTransaction)
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}
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@Test
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@Throws(Exception::class)
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fun checkFragmentNotNull() {
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Assert.assertNotNull(fragment)
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}
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@Test
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@Throws(Exception::class)
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fun testOnViewCreated() {
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fragment.onViewCreated(view, null)
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).hide(mediaDetails)
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verify(childFragmentTransaction).add(R.id.explore_container, listFragment)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun `testSetFragment_Case fragment_isAdded && otherFragment != null`() {
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`when`(mediaDetails.isAdded).thenReturn(true)
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fragment.setFragment(mediaDetails, listFragment)
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).hide(listFragment)
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verify(childFragmentTransaction).show(mediaDetails)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun `testSetFragment_Case fragment_isAdded && otherFragment == null`() {
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`when`(mediaDetails.isAdded).thenReturn(true)
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fragment.setFragment(mediaDetails, null)
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).show(mediaDetails)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun `testSetFragment_Case fragment_isNotAdded && otherFragment != null`() {
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`when`(mediaDetails.isAdded).thenReturn(false)
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fragment.setFragment(mediaDetails, listFragment)
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).hide(listFragment)
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verify(childFragmentTransaction).add(R.id.explore_container, mediaDetails)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun `testSetFragment_Case fragment_isNotAdded && otherFragment == null`() {
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`when`(mediaDetails.isAdded).thenReturn(false)
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fragment.setFragment(mediaDetails, null)
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).replace(R.id.explore_container, mediaDetails)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun testOnMediaClicked() {
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fragment.onMediaClicked(0)
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verify(container).visibility = View.VISIBLE
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verify(tabLayout).visibility = View.GONE
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verify(childFragmentManager).beginTransaction()
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verify(childFragmentTransaction).hide(listFragment)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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verify(childFragmentTransaction).commit()
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verify(childFragmentManager).executePendingTransactions()
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}
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@Test
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@Throws(Exception::class)
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fun testGetMediaAtPosition() {
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`when`(listFragment.getMediaAtPosition(0)).thenReturn(media)
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Assert.assertEquals(fragment.getMediaAtPosition(0), media)
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}
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@Test
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@Throws(Exception::class)
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fun testGetMediaAtPositionCaseNull() {
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val field: Field = ExploreListRootFragment::class.java.getDeclaredField("listFragment")
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field.isAccessible = true
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field.set(fragment, null)
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Assert.assertEquals(fragment.getMediaAtPosition(0), null)
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}
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@Test
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@Throws(Exception::class)
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fun testGetTotalMediaCount() {
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`when`(listFragment.totalMediaCount).thenReturn(1)
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Assert.assertEquals(fragment.totalMediaCount, 1)
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}
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@Test
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@Throws(Exception::class)
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fun testGetTotalMediaCountCaseNull() {
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val field: Field = ExploreListRootFragment::class.java.getDeclaredField("listFragment")
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field.isAccessible = true
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field.set(fragment, null)
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Assert.assertEquals(fragment.totalMediaCount, 0)
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}
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@Test
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@Throws(Exception::class)
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fun testGetContributionStateAt() {
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Assert.assertEquals(fragment.getContributionStateAt(0), null)
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}
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@Test
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@Throws(Exception::class)
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fun testRefreshNominatedMedia() {
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`when`(listFragment.isVisible).thenReturn(false)
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fragment.refreshNominatedMedia(0)
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verify(childFragmentManager, times(2)).beginTransaction()
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verify(childFragmentTransaction).remove(mediaDetails)
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verify(childFragmentTransaction, times(2)).commit()
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verify(childFragmentManager, times(2)).executePendingTransactions()
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verify(container).visibility = View.VISIBLE
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verify(tabLayout).visibility = View.GONE
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verify(childFragmentTransaction).hide(listFragment)
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verify(childFragmentTransaction).addToBackStack("CONTRIBUTION_LIST_FRAGMENT_TAG")
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}
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@Test
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@Throws(Exception::class)
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fun testViewPagerNotifyDataSetChanged() {
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fragment.viewPagerNotifyDataSetChanged()
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verify(mediaDetails).notifyDataSetChanged()
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}
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@Test
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@Throws(Exception::class)
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fun `testBackPressed_Case null != mediaDetails && mediaDetails_isVisible_backButtonClicked`() {
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`when`(mediaDetails.isVisible).thenReturn(true)
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Assert.assertEquals(fragment.backPressed(), true)
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}
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@Test
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@Throws(Exception::class)
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fun `testBackPressed_Case null != mediaDetails && mediaDetails_isVisible_backButtonNotClicked`() {
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`when`(mediaDetails.isVisible).thenReturn(true)
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`when`(mediaDetails.backButtonClicked()).thenReturn(true)
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Assert.assertEquals(fragment.backPressed(), true)
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}
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@Test
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@Throws(Exception::class)
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fun `testBackPressed_Case null != mediaDetails && mediaDetails_isNotVisible`() {
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Assert.assertEquals(fragment.backPressed(), false)
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}
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}
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