Add screenshot diff tests for SPA widgets, including preferences,

charts, illustration, footer, spinner, etc.

Test: presubmit
Bug: 256770697
Change-Id: Ic5f143b9d3e4d052e7f1f728304bd545e5b3b7a9

packages/SettingsLib/Spa/screenshot/res/drawable/accessibility_captioning_banner.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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.
+-->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="412dp"
+    android:height="300dp"
+    android:viewportWidth="412"
+    android:viewportHeight="300">
+  <path
+      android:pathData="M383.9,300H28.1C12.6,300 0,287.4 0,271.9V28.1C0,12.6 12.6,0 28.1,0h355.8C399.4,0 412,12.6 412,28.1v243.8C412,287.4 399.4,300 383.9,300z"
+      android:fillColor="#FFFFFF"/>
+  <path
+      android:pathData="M79.2,179.6h53.6v8.5h-53.6z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M142.5,179.6h30.4v8.5h-30.4z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M79.2,195.5h79.2v8.5h-79.2z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M168.1,195.5h34.1v8.5h-34.1z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M211.9,195.5h34.1v8.5h-34.1z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M182.7,179.6h73.1v8.5h-73.1z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M265.5,179.6h26.8v8.5h-26.8z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M302.1,179.6h26.8v8.5h-26.8z"
+      android:fillColor="#1A73E8"/>
+  <path
+      android:pathData="M142.7,67.9h-11.5c-1.6,0 -2.9,1.3 -2.9,2.9H67.8c-7.9,0 -14.4,6.5 -14.4,14.4v132.4c0,7.9 6.5,14.4 14.4,14.4h276.4c7.9,0 14.4,-6.5 14.4,-14.4V85.2c0,-7.9 -6.5,-14.4 -14.4,-14.4H203.1c0,-1.6 -1.3,-2.9 -2.9,-2.9h-28.8c-1.6,0 -2.9,1.3 -2.9,2.9h-23C145.5,69.2 144.3,67.9 142.7,67.9zM344.2,73.7c6.4,0 11.5,5.2 11.5,11.5v132.4c0,6.3 -5.2,11.5 -11.5,11.5H67.8c-6.4,0 -11.5,-5.2 -11.5,-11.5V85.2c0,-6.3 5.2,-11.5 11.5,-11.5H344.2z"
+      android:fillColor="#DADCE0"/>
+</vector>

packages/SettingsLib/Spa/screenshot/src/com/android/settingslib/spa/screenshot/widget/button/ActionButtonsScreenshotTest.kt

@@ -0,0 +1,58 @@
+/*
+ * 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.settingslib.spa.screenshot
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Delete
+import androidx.compose.material.icons.outlined.Launch
+import androidx.compose.material.icons.outlined.WarningAmber
+import com.android.settingslib.spa.widget.button.ActionButton
+import com.android.settingslib.spa.widget.button.ActionButtons
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.junit.runners.Parameterized
+import platform.test.screenshot.DeviceEmulationSpec
+
+/** A screenshot test for ExampleFeature. */
+@RunWith(Parameterized::class)
+class ActionButtonsScreenshotTest(emulationSpec: DeviceEmulationSpec) {
+    companion object {
+        @Parameterized.Parameters(name = "{0}")
+        @JvmStatic
+        fun getTestSpecs() = DeviceEmulationSpec.PhoneAndTabletFull
+    }
+
+    @get:Rule
+    val screenshotRule =
+        SettingsScreenshotTestRule(
+            emulationSpec,
+            "frameworks/base/packages/SettingsLib/Spa/screenshot/assets"
+        )
+
+    @Test
+    fun test() {
+        screenshotRule.screenshotTest("actionButtons") {
+            val actionButtons = listOf(
+                ActionButton(text = "Open", imageVector = Icons.Outlined.Launch) {},
+                ActionButton(text = "Uninstall", imageVector = Icons.Outlined.Delete) {},
+                ActionButton(text = "Force stop", imageVector = Icons.Outlined.WarningAmber) {},
+            )
+            ActionButtons(actionButtons)
+        }
+    }
+}