1 /* <lambda>null2 * Copyright (C) 2025 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.settings.bluetooth 17 18 import android.content.Context 19 import androidx.fragment.app.FragmentActivity 20 import androidx.fragment.app.testing.EmptyFragmentActivity 21 import androidx.preference.Preference 22 import androidx.test.core.app.ActivityScenario 23 import androidx.test.core.app.ApplicationProvider 24 import com.google.common.truth.Truth.assertThat 25 import org.junit.Before 26 import org.junit.Rule 27 import org.junit.Test 28 import org.junit.runner.RunWith 29 import org.mockito.Mockito.spy 30 import org.mockito.junit.MockitoJUnit 31 import org.mockito.junit.MockitoRule 32 import org.robolectric.RobolectricTestRunner 33 34 @RunWith(RobolectricTestRunner::class) 35 class BluetoothDetailsFragmentTest { 36 @get:Rule val mockitoRule: MockitoRule = MockitoJUnit.rule() 37 38 private lateinit var activity: FragmentActivity 39 private lateinit var fragment: TestConfigurableFragment 40 private lateinit var context: Context 41 42 @Before 43 fun setUp() { 44 context = spy(ApplicationProvider.getApplicationContext<Context>()) 45 } 46 47 @Test 48 fun setPreferenceDisplayOrder_null_unchanged() = buildFragment { 49 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key1" }) 50 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key2" }) 51 52 fragment.setPreferenceDisplayOrder(null) 53 54 assertThat(this.displayedKeys).containsExactly("key1", "key2") 55 } 56 57 @Test 58 fun setPreferenceDisplayOrder_hideItem() = buildFragment { 59 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key1" }) 60 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key2" }) 61 62 fragment.setPreferenceDisplayOrder(mutableListOf("key2")) 63 64 assertThat(this.displayedKeys).containsExactly("key2") 65 } 66 67 @Test 68 fun setPreferenceDisplayOrder_hideAndReShownItem() = buildFragment { 69 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key1" }) 70 fragment.preferenceScreen.addPreference(Preference(context).apply { key = "key2" }) 71 72 fragment.setPreferenceDisplayOrder(mutableListOf("key2")) 73 fragment.setPreferenceDisplayOrder(mutableListOf("key2", "key1")) 74 75 assertThat(this.displayedKeys).containsExactly("key2", "key1") 76 } 77 78 private fun buildFragment(r: (() -> Unit)) { 79 ActivityScenario.launch(EmptyFragmentActivity::class.java).use { activityScenario -> 80 activityScenario.onActivity { activity: EmptyFragmentActivity -> 81 this@BluetoothDetailsFragmentTest.activity = activity 82 fragment = TestConfigurableFragment() 83 activity.supportFragmentManager.beginTransaction().add(fragment, null).commitNow() 84 fragment.setPreferenceScreen( 85 fragment.preferenceManager.createPreferenceScreen(context) 86 ) 87 r.invoke() 88 } 89 } 90 } 91 92 private val displayedKeys: List<String> 93 get() { 94 val keys: MutableList<String> = mutableListOf() 95 for (i in 0..<fragment.preferenceScreen.preferenceCount) { 96 if (fragment.preferenceScreen.getPreference(i).isVisible) { 97 keys.add(fragment.preferenceScreen.getPreference(i).key) 98 } 99 } 100 return keys 101 } 102 103 class TestConfigurableFragment : BluetoothDetailsConfigurableFragment() { 104 protected override fun getPreferenceScreenResId(): Int { 105 return 0 106 } 107 108 override fun getLogTag(): String { 109 return "TAG" 110 } 111 112 override fun getMetricsCategory(): Int { 113 return 0 114 } 115 } 116 } 117