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236
.../androidTest/kotlin/com/rubensousa/dpadrecyclerview/test/tests/drag/DragHelperGridTest.kt
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| /* | ||
| * Copyright 2024 Rúben Sousa | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.rubensousa.dpadrecyclerview.test.tests.drag | ||
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| import androidx.fragment.app.testing.FragmentScenario | ||
| import androidx.fragment.app.testing.launchFragmentInContainer | ||
| import androidx.recyclerview.widget.RecyclerView | ||
| import androidx.test.platform.app.InstrumentationRegistry | ||
| import com.rubensousa.dpadrecyclerview.DpadDragHelper | ||
| import com.rubensousa.dpadrecyclerview.spacing.DpadGridSpacingDecoration | ||
| import com.rubensousa.dpadrecyclerview.test.RecyclerViewFragment | ||
| import com.rubensousa.dpadrecyclerview.test.TestAdapter | ||
| import com.rubensousa.dpadrecyclerview.test.TestAdapterConfiguration | ||
| import com.rubensousa.dpadrecyclerview.test.helpers.assertFocusAndSelection | ||
| import com.rubensousa.dpadrecyclerview.test.helpers.onRecyclerView | ||
| import com.rubensousa.dpadrecyclerview.test.helpers.waitForCondition | ||
| import com.rubensousa.dpadrecyclerview.testing.KeyEvents | ||
| import com.rubensousa.dpadrecyclerview.testing.R | ||
| import org.junit.Before | ||
| import org.junit.Test | ||
|
|
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| class DragHelperGridTest { | ||
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| private lateinit var fragmentScenario: FragmentScenario<RecyclerViewFragment> | ||
| private lateinit var dragHelper: DpadDragHelper<Int> | ||
| private lateinit var testAdapter: TestAdapter | ||
| private val numberOfItems = 50 | ||
| private val spanCount = 5 | ||
| private val dragStarted = mutableListOf<RecyclerView.ViewHolder>() | ||
| private var dragStopCount = 0 | ||
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| @Before | ||
| fun setup() { | ||
| fragmentScenario = launchFragment() | ||
| onRecyclerView("Setup RecyclerView ") { recyclerView -> | ||
| testAdapter = TestAdapter( | ||
| adapterConfiguration = TestAdapterConfiguration( | ||
| itemLayoutId = R.layout.dpadrecyclerview_test_item_grid, | ||
| numberOfItems = numberOfItems | ||
| ), | ||
| onViewHolderSelected = { | ||
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| }, | ||
| onViewHolderDeselected = { | ||
|
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| } | ||
| ) | ||
| recyclerView.apply { | ||
| adapter = testAdapter | ||
| setSpanCount(spanCount) | ||
| addItemDecoration( | ||
| DpadGridSpacingDecoration.create( | ||
| itemSpacing = resources.getDimensionPixelSize( | ||
| com.rubensousa.dpadrecyclerview.test.R.dimen.dpadrecyclerview_grid_spacing | ||
| ) | ||
| ) | ||
| ) | ||
| } | ||
| dragHelper = DpadDragHelper( | ||
| adapter = testAdapter, | ||
| callback = object : DpadDragHelper.DragCallback { | ||
| override fun onDragStarted(viewHolder: RecyclerView.ViewHolder) { | ||
| dragStarted.add(viewHolder) | ||
| } | ||
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| override fun onDragStopped() { | ||
| dragStopCount++ | ||
| } | ||
| } | ||
| ) | ||
| dragHelper.attachToRecyclerView(recyclerView) | ||
| } | ||
| } | ||
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| @Test | ||
| fun testDragStartRowToEndRow() { | ||
| // given | ||
| val endRowPosition = spanCount - 1 | ||
| startDragging(position = 0) | ||
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| // when | ||
| KeyEvents.pressRight(times = spanCount) | ||
|
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| // then | ||
| assertFocusAndSelection(position = endRowPosition) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index < spanCount - 1 -> index + 1 | ||
| index == spanCount - 1 -> 0 | ||
| else -> index | ||
| } | ||
| } | ||
| } | ||
|
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| @Test | ||
| fun testDragEndRowToStartRow() { | ||
| // given | ||
| val endRowPosition = spanCount - 1 | ||
| startDragging(position = endRowPosition) | ||
|
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| // when | ||
| KeyEvents.pressLeft(times = spanCount) | ||
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| // then | ||
| assertFocusAndSelection(position = 0) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index == 0 -> endRowPosition | ||
| index < spanCount -> index - 1 | ||
| else -> index | ||
| } | ||
| } | ||
| } | ||
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| @Test | ||
| fun testDragColumnTopToColumnBottom() { | ||
| // given | ||
| val topColumnPosition = spanCount - 1 | ||
| val bottomColumnPosition = topColumnPosition + spanCount | ||
| startDragging(position = topColumnPosition) | ||
|
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| // when | ||
| KeyEvents.pressDown(times = 1) | ||
|
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| // then | ||
| assertFocusAndSelection(position = bottomColumnPosition) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index < topColumnPosition -> index | ||
| index < bottomColumnPosition -> index + 1 | ||
| index == bottomColumnPosition -> topColumnPosition | ||
| else -> index | ||
| } | ||
| } | ||
| } | ||
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| @Test | ||
| fun testDragColumnBottomToColumnTop() { | ||
| // given | ||
| val topColumnPosition = spanCount - 1 | ||
| val bottomColumnPosition = topColumnPosition + spanCount | ||
| startDragging(position = bottomColumnPosition) | ||
|
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| // when | ||
| KeyEvents.pressUp(times = 1) | ||
|
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| // then | ||
| assertFocusAndSelection(position = bottomColumnPosition) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index < topColumnPosition -> index | ||
| index == topColumnPosition -> bottomColumnPosition | ||
| index < bottomColumnPosition -> index - 1 | ||
| index == bottomColumnPosition -> topColumnPosition | ||
| else -> index | ||
| } | ||
| } | ||
| } | ||
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| @Test | ||
| fun testDragStartToEnd() { | ||
| // given | ||
| startDragging(position = 0) | ||
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| // when | ||
| KeyEvents.pressDown(times = numberOfItems / spanCount) | ||
| KeyEvents.pressRight(times = spanCount) | ||
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| // then | ||
| assertFocusAndSelection(position = numberOfItems - 1) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index < numberOfItems - 1 -> index + 1 | ||
| else -> 0 | ||
| } | ||
| } | ||
| } | ||
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| @Test | ||
| fun testDragEndToStart() { | ||
| // given | ||
| startDragging(position = numberOfItems - 1) | ||
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| // when | ||
| KeyEvents.pressUp(times = numberOfItems / spanCount) | ||
| KeyEvents.pressLeft(times = spanCount) | ||
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| // then | ||
| assertFocusAndSelection(position = 0) | ||
| testAdapter.assertContents { index -> | ||
| when { | ||
| index == 0 -> numberOfItems - 1 | ||
| else -> index - 1 | ||
| } | ||
| } | ||
| } | ||
|
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| private fun startDragging(position: Int) { | ||
| InstrumentationRegistry.getInstrumentation().runOnMainSync { | ||
| dragHelper.startDrag(position) | ||
| } | ||
| } | ||
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| private fun stopDragging() { | ||
| InstrumentationRegistry.getInstrumentation().runOnMainSync { | ||
| dragHelper.stopDrag() | ||
| } | ||
| } | ||
|
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| private fun launchFragment(): FragmentScenario<RecyclerViewFragment> { | ||
| return launchFragmentInContainer<RecyclerViewFragment>( | ||
| themeResId = R.style.DpadRecyclerViewTestTheme | ||
| ).also { | ||
| fragmentScenario = it | ||
| waitForCondition("Waiting for layout pass") { recyclerView -> | ||
| !recyclerView.isLayoutRequested | ||
| } | ||
| } | ||
| } | ||
|
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| } |
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