Add unit tests for VirtualMouseTest

/*

 * Copyright 2025 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.

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package android.hardware.input

import android.compat.testing.PlatformCompatChangeRule

import android.graphics.PointF

import android.platform.test.annotations.Presubmit

import com.android.server.testutils.whenever

import com.google.common.truth.Truth.assertThat

import libcore.junit.util.compat.CoreCompatChangeRule.DisableCompatChanges

import libcore.junit.util.compat.CoreCompatChangeRule.EnableCompatChanges

import org.junit.Before

import org.junit.Rule

import org.junit.Test

import org.junit.runner.RunWith

import org.mockito.Mock

import org.mockito.junit.MockitoJUnit

import org.mockito.junit.MockitoJUnitRunner

/** Tests for [VirtualMouse]. */

@Presubmit

@RunWith(MockitoJUnitRunner::class)

class VirtualMouseTest {

    @get:Rule val mockitoJunitRule = MockitoJUnit.rule()

    @get:Rule val compatChangeRule = PlatformCompatChangeRule()

    @Mock private lateinit var virtualMouseConfig: VirtualMouseConfig

    @Mock private lateinit var virtualInputDevice: IVirtualInputDevice

    private lateinit var virtualMouse: VirtualMouse

    @Before

    fun setup() {

        virtualMouse = VirtualMouse(virtualMouseConfig, virtualInputDevice)

    }

    @Test

    fun testCursorPosition_nullToNaN() {

        whenever(virtualInputDevice.getCursorPositionInLogicalDisplay()).thenReturn(null)

        whenever(virtualInputDevice.getCursorPositionInPhysicalDisplay()).thenReturn(null)

        val res = virtualMouse.cursorPosition

        assertThat(res).isEqualTo(PointF(Float.NaN, Float.NaN))

    }

    @Test

    @EnableCompatChanges(VirtualMouse.VIRTUAL_MOUSE_CURSOR_POTION_IN_LOGICAL_COORDINATES)

    fun testCursorPosition_CompatChangeEnabled() {

        whenever(virtualInputDevice.getCursorPositionInLogicalDisplay())

            .thenReturn(PointF(10f, 20f))

        val res = virtualMouse.cursorPosition

        assertThat(res).isEqualTo(PointF(10f, 20f))

    }

    @Test

    @DisableCompatChanges(VirtualMouse.VIRTUAL_MOUSE_CURSOR_POTION_IN_LOGICAL_COORDINATES)

    fun testCursorPosition_CompatChangeDisabled() {

        whenever(virtualInputDevice.getCursorPositionInPhysicalDisplay())

            .thenReturn(PointF(30f, 40f))

        val res = virtualMouse.cursorPosition

        assertThat(res).isEqualTo(PointF(30f, 40f))

    }

}