Add coretest for android.view.InputDevice.

Add coretest cases for android.view.InputDevice, for parcel/unparcel
input device object.

Bug: 173326051
Test: atest InputDeviceTest
Change-Id: I5dea2783b11a195dc2eb8337aad77368b98cf068
diff --git a/tests/Input/Android.bp b/tests/Input/Android.bp
index 335c8d0..eacf5b2 100644
--- a/tests/Input/Android.bp
+++ b/tests/Input/Android.bp
@@ -9,14 +9,17 @@
 
 android_test {
     name: "InputTests",
-    srcs: ["src/**/*.kt"],
+    srcs: [
+        "src/**/*.java",
+        "src/**/*.kt",
+    ],
     platform_apis: true,
     certificate: "platform",
     static_libs: [
-            "androidx.test.ext.junit",
-            "androidx.test.rules",
-            "truth-prebuilt",
-            "ub-uiautomator",
-        ],
+        "androidx.test.ext.junit",
+        "androidx.test.rules",
+        "truth-prebuilt",
+        "ub-uiautomator",
+    ],
     test_suites: ["device-tests"],
 }
diff --git a/tests/Input/src/com/android/test/input/InputDeviceTest.java b/tests/Input/src/com/android/test/input/InputDeviceTest.java
new file mode 100644
index 0000000..6350077
--- /dev/null
+++ b/tests/Input/src/com/android/test/input/InputDeviceTest.java
@@ -0,0 +1,98 @@
+/*
+ * 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.
+ */
+
+package android.view;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import android.os.Parcel;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class InputDeviceTest {
+    private static final float DELTA = 0.01f;
+    private static final int DEVICE_ID = 1000;
+
+    private void assertMotionRangeEquals(InputDevice.MotionRange range,
+            InputDevice.MotionRange outRange) {
+        assertEquals(range.getAxis(), outRange.getAxis());
+        assertEquals(range.getSource(), outRange.getSource());
+        assertEquals(range.getMin(), outRange.getMin(), DELTA);
+        assertEquals(range.getMax(), outRange.getMax(), DELTA);
+        assertEquals(range.getFlat(), outRange.getFlat(), DELTA);
+        assertEquals(range.getFuzz(), outRange.getFuzz(), DELTA);
+        assertEquals(range.getResolution(), outRange.getResolution(), DELTA);
+    }
+
+    private void assertDeviceEquals(InputDevice device, InputDevice outDevice) {
+        assertEquals(device.getId(), outDevice.getId());
+        assertEquals(device.getGeneration(), outDevice.getGeneration());
+        assertEquals(device.getControllerNumber(), outDevice.getControllerNumber());
+        assertEquals(device.getName(), outDevice.getName());
+        assertEquals(device.getVendorId(), outDevice.getVendorId());
+        assertEquals(device.getProductId(), outDevice.getProductId());
+        assertEquals(device.getDescriptor(), outDevice.getDescriptor());
+        assertEquals(device.isExternal(), outDevice.isExternal());
+        assertEquals(device.getSources(), outDevice.getSources());
+        assertEquals(device.getKeyboardType(), outDevice.getKeyboardType());
+        assertEquals(device.getMotionRanges().size(), outDevice.getMotionRanges().size());
+
+        KeyCharacterMap keyCharacterMap = device.getKeyCharacterMap();
+        KeyCharacterMap outKeyCharacterMap = outDevice.getKeyCharacterMap();
+        assertTrue("keyCharacterMap not equal", keyCharacterMap.equals(outKeyCharacterMap));
+
+        for (int j = 0; j < device.getMotionRanges().size(); j++) {
+            assertMotionRangeEquals(device.getMotionRanges().get(j),
+                    outDevice.getMotionRanges().get(j));
+        }
+    }
+
+    private void assertInputDeviceParcelUnparcel(KeyCharacterMap keyCharacterMap) {
+        final InputDevice device =
+                new InputDevice(DEVICE_ID, 0 /* generation */, 0 /* controllerNumber */, "name",
+                0 /* vendorId */, 0 /* productId */, "descriptor", true /* isExternal */,
+                0 /* sources */, 0 /* keyboardType */, keyCharacterMap,
+                false /* hasVibrator */, false /* hasMicrophone */, false /* hasButtonUnderpad */,
+                true /* hasSensor */, false /* hasBattery */);
+
+        Parcel parcel = Parcel.obtain();
+        device.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+
+        InputDevice outDevice = InputDevice.CREATOR.createFromParcel(parcel);
+        assertDeviceEquals(device, outDevice);
+    }
+
+    @Test
+    public void testParcelUnparcelInputDevice_VirtualCharacterMap() {
+        final KeyCharacterMap keyCharacterMap =
+                KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
+        assertInputDeviceParcelUnparcel(keyCharacterMap);
+    }
+
+    @Test
+    public void testParcelUnparcelInputDevice_EmptyCharacterMap() {
+        final KeyCharacterMap keyCharacterMap = KeyCharacterMap.obtainEmptyMap(DEVICE_ID);
+        assertInputDeviceParcelUnparcel(keyCharacterMap);
+    }
+}