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Create stage fragment holder to hold fragment references by their ta…
…gs until they're destroyed. FragmentManagerController use this class to retrieve fragment instances if it can't find those instances in FragmentManager.
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mert.yuksel
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Jun 25, 2024
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36 changes: 36 additions & 0 deletions
36
medusalib/src/androidTest/java/com/trendyol/medusalib/TestChildFragment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package com.trendyol.medusalib | ||
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| import android.os.Bundle | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import android.widget.TextView | ||
| import androidx.fragment.app.Fragment | ||
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| private const val KEY_TITLE = "title" | ||
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| class TestChildFragment : Fragment() { | ||
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| var onFragmentVisibleAgain: (() -> Unit)? = null | ||
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| override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { | ||
| return TextView(requireContext()).apply { | ||
| text = requireArguments().getString(KEY_TITLE) | ||
| } | ||
| } | ||
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| override fun onHiddenChanged(hidden: Boolean) { | ||
| super.onHiddenChanged(hidden) | ||
| if (hidden.not() && view != null) { | ||
| onFragmentVisibleAgain?.invoke() | ||
| } | ||
| } | ||
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| companion object { | ||
| fun newInstance(title: String): TestChildFragment { | ||
| return TestChildFragment().apply { | ||
| arguments = Bundle().apply { putString(KEY_TITLE, title) } | ||
| } | ||
| } | ||
| } | ||
| } |
19 changes: 19 additions & 0 deletions
19
medusalib/src/androidTest/java/com/trendyol/medusalib/TestParentFragment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| package com.trendyol.medusalib | ||
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| import android.os.Bundle | ||
| import android.view.LayoutInflater | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import android.widget.FrameLayout | ||
| import androidx.fragment.app.Fragment | ||
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| class TestParentFragment : Fragment() { | ||
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| override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? { | ||
| return FrameLayout(requireContext()).apply { id = CONTAINER_ID } | ||
| } | ||
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| companion object { | ||
| const val CONTAINER_ID = 1_000 | ||
| } | ||
| } |
83 changes: 83 additions & 0 deletions
83
medusalib/src/androidTest/java/com/trendyol/medusalib/navigator/ConcurrentTransactionTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package com.trendyol.medusalib.navigator | ||
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| import androidx.fragment.app.testing.FragmentScenario | ||
| import androidx.fragment.app.testing.launchFragmentInContainer | ||
| import androidx.fragment.app.testing.withFragment | ||
| import androidx.lifecycle.Lifecycle | ||
| import androidx.test.espresso.Espresso.onView | ||
| import androidx.test.espresso.assertion.ViewAssertions.matches | ||
| import androidx.test.espresso.matcher.ViewMatchers.isDisplayed | ||
| import androidx.test.espresso.matcher.ViewMatchers.withText | ||
| import androidx.test.ext.junit.runners.AndroidJUnit4 | ||
| import com.trendyol.medusalib.TestChildFragment | ||
| import com.trendyol.medusalib.TestParentFragment | ||
| import com.trendyol.medusalib.navigator.transaction.NavigatorTransaction | ||
| import com.trendyol.medusalib.navigator.transaction.TransactionType | ||
| import org.junit.Test | ||
| import org.junit.runner.RunWith | ||
| import java.util.concurrent.CountDownLatch | ||
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| @RunWith(AndroidJUnit4::class) | ||
| class ConcurrentTransactionTest { | ||
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| @Test | ||
| fun givenNavigatorWithShowAndHideWhenFragmentResetsTheCurrentTabAndStartsAnotherFragmentThenItMustNotThrowAnyExceptions() { | ||
| // Given | ||
| val transaction = CountDownLatch(1) | ||
| var caughtException: Throwable? = null | ||
| var navigator: Navigator? = null | ||
| val scenario = launchFragmentInContainer<TestParentFragment>( | ||
| initialState = Lifecycle.State.INITIALIZED | ||
| ) | ||
| scenario.moveToState(Lifecycle.State.RESUMED) | ||
| val rootFragment = TestChildFragment.newInstance("Root") | ||
| val expectedFragment = TestChildFragment.newInstance("ExpectedFragment") | ||
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| scenario.withFragment { navigator = createNavigator(rootFragment = rootFragment) } | ||
| scenario.moveToState(Lifecycle.State.RESUMED) | ||
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| // When | ||
| rootFragment.onFragmentVisibleAgain = { | ||
| resetTabAndStartFragment(navigator!!, expectedFragment) | ||
| .onSuccess { transaction.countDown() } | ||
| .onFailure { | ||
| caughtException = it | ||
| transaction.countDown() | ||
| } | ||
| } | ||
| scenario.startAndDismissAFragment(navigator!!) | ||
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| transaction.await() | ||
| caughtException?.let { throw it } | ||
| scenario.moveToState(Lifecycle.State.RESUMED) | ||
| onView(withText("ExpectedFragment")).check(matches(isDisplayed())) | ||
| } | ||
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| private fun FragmentScenario<TestParentFragment>.startAndDismissAFragment(navigator: Navigator) { | ||
| onFragment { navigator.start(TestChildFragment.newInstance("SecondFragment")) } | ||
| moveToState(Lifecycle.State.RESUMED) | ||
| onFragment { navigator.goBack() } | ||
| } | ||
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| private fun resetTabAndStartFragment( | ||
| navigator: Navigator, | ||
| expectedFragment: TestChildFragment | ||
| ): Result<Unit> { | ||
| return runCatching { | ||
| navigator.resetCurrentTab(true) | ||
| navigator.start(expectedFragment) | ||
| } | ||
| } | ||
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| private fun TestParentFragment.createNavigator(rootFragment: TestChildFragment): MultipleStackNavigator { | ||
| return MultipleStackNavigator( | ||
| fragmentManager = this.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ rootFragment }), | ||
| navigatorConfiguration = NavigatorConfiguration( | ||
| defaultNavigatorTransaction = NavigatorTransaction(TransactionType.SHOW_HIDE) | ||
| ) | ||
| ).apply { this.initialize(null) } | ||
| } | ||
| } |
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