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Merge pull request #53 from Trendyol/feature/fragment-stack-index-get…
…ter-with-tag Adds `getFragmentIndexInStackBySameType` function to `Navigator`
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30 changes: 3 additions & 27 deletions
30
medusalib/src/main/java/com/trendyol/medusalib/navigator/data/StackItem.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,31 +1,7 @@ | ||
| package com.trendyol.medusalib.navigator.data | ||
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| import android.os.Parcel | ||
| import android.os.Parcelable | ||
| import kotlinx.parcelize.Parcelize | ||
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| data class StackItem(val fragmentTag: String, val groupName: String = "") : Parcelable { | ||
| constructor(parcel: Parcel) : this( | ||
| requireNotNull(parcel.readString()), | ||
| requireNotNull(parcel.readString()) | ||
| ) | ||
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| override fun writeToParcel(parcel: Parcel, flags: Int) { | ||
| parcel.writeString(fragmentTag) | ||
| parcel.writeString(groupName) | ||
| } | ||
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| override fun describeContents(): Int { | ||
| return 0 | ||
| } | ||
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| companion object CREATOR : Parcelable.Creator<StackItem> { | ||
| override fun createFromParcel(parcel: Parcel): StackItem { | ||
| return StackItem(parcel) | ||
| } | ||
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| override fun newArray(size: Int): Array<StackItem?> { | ||
| return arrayOfNulls(size) | ||
| } | ||
| } | ||
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| } | ||
| @Parcelize | ||
| data class StackItem(val fragmentTag: String, val groupName: String = "") : Parcelable |
167 changes: 167 additions & 0 deletions
167
...rc/test/java/com/trendyol/medusalib/navigator/MultipleStackNavigatorBackstackOrderTest.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| package com.trendyol.medusalib.navigator | ||
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| import androidx.fragment.app.Fragment | ||
| import androidx.fragment.app.testing.launchFragmentInContainer | ||
| import com.google.common.truth.Truth.assertThat | ||
| import com.trendyol.medusalib.TestChildFragment | ||
| import com.trendyol.medusalib.TestParentFragment | ||
| import org.junit.Test | ||
| import org.junit.runner.RunWith | ||
| import org.robolectric.RobolectricTestRunner | ||
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| @RunWith(RobolectricTestRunner::class) | ||
| class MultipleStackNavigatorBackstackOrderTest { | ||
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| @Test | ||
| fun `given MultipleStackNavigator with empty stack and null as tag, when calling getFragmentIndexInStackBySameType, should return -1`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ TestChildFragment.newInstance("root 1") }), | ||
| ) | ||
| sut.initialize(null) | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType(null) | ||
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| // Then | ||
| assertThat(actual).isEqualTo(-1) | ||
| } | ||
| } | ||
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| @Test | ||
| fun `given MultipleStackNavigator with empty stack and nonnull tag, when calling getFragmentIndexInStackBySameType, should return -1`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ TestChildFragment.newInstance("root 1") }), | ||
| ) | ||
| sut.initialize(null) | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType("random-tag") | ||
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| // Then | ||
| assertThat(actual).isEqualTo(-1) | ||
| } | ||
| } | ||
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| @Test | ||
| fun `given MultipleStackNavigator with stack with single fragment and nonnull tag, when calling getFragmentIndexInStackBySameType for current fragment, should return 0`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ TestChildFragment.newInstance("root 1") }), | ||
| ) | ||
| sut.initialize(null) | ||
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| sut.start(TestChildFragment.newInstance("child fragment")) | ||
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| fragment.childFragmentManager.executePendingTransactions() | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType(sut.getCurrentFragment()?.tag) | ||
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| // Then | ||
| assertThat(actual).isEqualTo(0) | ||
| } | ||
| } | ||
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| @Test | ||
| fun `given MultipleStackNavigator with stack with multiple fragment and nonnull tag, when calling getFragmentIndexInStackBySameType for first child fragment, should return 2`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ TestChildFragment.newInstance("root 1") }), | ||
| ) | ||
| sut.initialize(null) | ||
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| val fragments = mutableListOf<Fragment>() | ||
| sut.observeDestinationChanges(fragment.viewLifecycleOwner) { | ||
| fragments.add(it) | ||
| } | ||
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| sut.start(TestChildFragment.newInstance("child fragment 1")) | ||
| sut.start(TestChildFragment.newInstance("child fragment 2")) | ||
| sut.start(TestChildFragment.newInstance("child fragment 3")) | ||
| fragment.childFragmentManager.executePendingTransactions() | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType(fragments[1].tag) | ||
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| // Then | ||
| assertThat(actual).isEqualTo(2) | ||
| } | ||
| } | ||
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| @Test | ||
| fun `given MultipleStackNavigator with stack with multiple fragment and nonnull tag, when calling getFragmentIndexInStackBySameType for last child fragment, should return 0`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf({ TestChildFragment.newInstance("root 1") }), | ||
| ) | ||
| sut.initialize(null) | ||
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| val fragments = mutableListOf<Fragment>() | ||
| sut.observeDestinationChanges(fragment.viewLifecycleOwner) { | ||
| fragments.add(it) | ||
| } | ||
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| sut.start(TestChildFragment.newInstance("child fragment 1")) | ||
| sut.start(TestChildFragment.newInstance("child fragment 2")) | ||
| fragment.childFragmentManager.executePendingTransactions() | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType(fragments[2].tag) | ||
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| // Then | ||
| assertThat(actual).isEqualTo(0) | ||
| } | ||
| } | ||
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| @Test | ||
| fun `given MultipleStackNavigator with stack with multiple root fragments and nonnull tag and switch tab, when calling getFragmentIndexInStackBySameType for first child in switched tab, should return 1`() { | ||
| launchFragmentInContainer<TestParentFragment>().onFragment { fragment -> | ||
| // Given | ||
| val sut = MultipleStackNavigator( | ||
| fragmentManager = fragment.childFragmentManager, | ||
| containerId = TestParentFragment.CONTAINER_ID, | ||
| rootFragmentProvider = listOf( | ||
| { TestChildFragment.newInstance("root 1") }, | ||
| { TestChildFragment.newInstance("root 2") }, | ||
| ), | ||
| ) | ||
| sut.initialize(null) | ||
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| val fragments = mutableListOf<Fragment>() | ||
| sut.observeDestinationChanges(fragment.viewLifecycleOwner) { | ||
| fragments.add(it) | ||
| } | ||
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| sut.start(TestChildFragment.newInstance("child fragment 1")) | ||
| sut.start(TestChildFragment.newInstance("child fragment 2")) | ||
| sut.switchTab(1) | ||
| sut.start(TestChildFragment.newInstance("child fragment 1")) | ||
| sut.start(TestChildFragment.newInstance("child fragment 1")) | ||
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| fragment.childFragmentManager.executePendingTransactions() | ||
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| // When | ||
| val actual = sut.getFragmentIndexInStackBySameType(fragments[4].tag) | ||
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| // Then | ||
| assertThat(actual).isEqualTo(1) | ||
| } | ||
| } | ||
| } |