Add AppSettingsPreference for Spa

This is used in new App Info page.

To try:
1. adb shell am start -n com.android.settings/.spa.SpaActivity
2. Go to Apps -> All apps -> [One App] -> Additional settings in the app

Bug: 236346018
Test: Unit test & Manual with App Info page
Change-Id: I40a175d771c4c0f13986f8c615169c99ce1b0623

tests/spa_unit/src/com/android/settings/spa/app/appinfo/AppSettingsPreferenceTest.kt

@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * 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.android.settings.spa.app.appinfo
+
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.content.pm.ActivityInfo
+import android.content.pm.ApplicationInfo
+import android.content.pm.PackageManager
+import android.content.pm.PackageManager.ResolveInfoFlags
+import android.content.pm.ResolveInfo
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.assertIsEnabled
+import androidx.compose.ui.test.assertIsNotDisplayed
+import androidx.compose.ui.test.assertIsNotEnabled
+import androidx.compose.ui.test.hasText
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithText
+import androidx.compose.ui.test.onRoot
+import androidx.compose.ui.test.performClick
+import androidx.compose.ui.test.printToLog
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import com.android.settings.R
+import com.android.settings.testutils.waitUntilExists
+import com.android.settingslib.applications.AppUtils
+import com.android.settingslib.spaprivileged.model.app.userHandle
+import com.android.settingslib.spaprivileged.model.app.userId
+import com.google.common.truth.Truth.assertThat
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.ArgumentCaptor
+import org.mockito.ArgumentMatchers
+import org.mockito.Mock
+import org.mockito.Mockito.any
+import org.mockito.Mockito.eq
+import org.mockito.Mockito.verify
+import org.mockito.Spy
+import org.mockito.junit.MockitoJUnit
+import org.mockito.junit.MockitoRule
+import org.mockito.Mockito.`when` as whenever
+
+@RunWith(AndroidJUnit4::class)
+class AppSettingsPreferenceTest {
+    @JvmField
+    @Rule
+    val mockito: MockitoRule = MockitoJUnit.rule()
+
+    @get:Rule
+    val composeTestRule = createComposeRule()
+
+    @Spy
+    private val context: Context = ApplicationProvider.getApplicationContext()
+
+    @Mock
+    private lateinit var packageManager: PackageManager
+
+    @Before
+    fun setUp() {
+        whenever(context.packageManager).thenReturn(packageManager)
+    }
+
+    private fun mockResolveActivityAsUser(resolveInfo: ResolveInfo?) {
+        whenever(
+            packageManager.resolveActivityAsUser(any(), any<ResolveInfoFlags>(), eq(APP.userId))
+        ).thenReturn(resolveInfo)
+    }
+
+    @Test
+    fun callResolveActivityAsUser_withIntent() {
+        mockResolveActivityAsUser(null)
+
+        setContent()
+
+        val intentCaptor = ArgumentCaptor.forClass(Intent::class.java)
+        verify(packageManager).resolveActivityAsUser(
+            intentCaptor.capture(), any<ResolveInfoFlags>(), eq(APP.userId)
+        )
+        val intent = intentCaptor.value
+        assertThat(intent.action).isEqualTo(Intent.ACTION_APPLICATION_PREFERENCES)
+        assertThat(intent.`package`).isEqualTo(PACKAGE_NAME)
+    }
+
+    @Test
+    fun noResolveInfo_notDisplayed() {
+        mockResolveActivityAsUser(null)
+
+        setContent()
+
+        composeTestRule.onRoot().assertIsNotDisplayed()
+    }
+
+    @Test
+    fun noSettingsActivity_notDisplayed() {
+        mockResolveActivityAsUser(ResolveInfo())
+
+        setContent()
+
+        composeTestRule.onRoot().assertIsNotDisplayed()
+    }
+
+    @Test
+    fun hasSettingsActivity_displayed() {
+        mockResolveActivityAsUser(RESOLVE_INFO)
+
+        setContent()
+
+        composeTestRule.onNodeWithText(context.getString(R.string.app_settings_link))
+            .assertIsDisplayed()
+            .assertIsEnabled()
+    }
+
+    @Test
+    fun whenClick_startActivity() {
+        mockResolveActivityAsUser(RESOLVE_INFO)
+
+        setContent()
+        composeTestRule.onRoot().performClick()
+
+        val intentCaptor = ArgumentCaptor.forClass(Intent::class.java)
+        verify(context).startActivityAsUser(intentCaptor.capture(), eq(APP.userHandle))
+        val intent = intentCaptor.value
+        assertThat(intent.action).isEqualTo(Intent.ACTION_APPLICATION_PREFERENCES)
+        assertThat(intent.component).isEqualTo(ComponentName(PACKAGE_NAME, ACTIVITY_NAME))
+    }
+
+    private fun setContent() {
+        composeTestRule.setContent {
+            CompositionLocalProvider(LocalContext provides context) {
+                AppSettingsPreference(APP)
+            }
+        }
+    }
+
+    private companion object {
+        const val PACKAGE_NAME = "packageName"
+        const val ACTIVITY_NAME = "activityName"
+        const val UID = 123
+        val APP = ApplicationInfo().apply {
+            packageName = PACKAGE_NAME
+            uid = UID
+        }
+        val RESOLVE_INFO = ResolveInfo().apply {
+            activityInfo = ActivityInfo().apply {
+                packageName = PACKAGE_NAME
+                name = ACTIVITY_NAME
+            }
+        }
+    }
+}