libs/gui/tests/WindowInfo_test.cpp

/*
 * Copyright 2018 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.
 */

#include <gmock/gmock-matchers.h>
#include <gtest/gtest.h>

#include <binder/Binder.h>
#include <binder/Parcel.h>

#include <gui/WindowInfo.h>

using std::chrono_literals::operator""s;

namespace android {

using gui::InputApplicationInfo;
using gui::TouchOcclusionMode;
using gui::WindowInfo;

namespace test {

TEST(WindowInfo, ParcellingWithoutToken) {
    WindowInfo i, i2;
    i.token = nullptr;

    Parcel p;
    ASSERT_EQ(OK, i.writeToParcel(&p));
    p.setDataPosition(0);
    i2.readFromParcel(&p);
    ASSERT_TRUE(i2.token == nullptr);
}

TEST(WindowInfo, Parcelling) {
    sp<IBinder> touchableRegionCropHandle = new BBinder();
    WindowInfo i;
    i.token = new BBinder();
    i.windowToken = new BBinder();
    i.id = 1;
    i.name = "Foobar";
    i.layoutParamsFlags = WindowInfo::Flag::SLIPPERY;
    i.layoutParamsType = WindowInfo::Type::INPUT_METHOD;
    i.dispatchingTimeout = 12s;
    i.frameLeft = 93;
    i.frameTop = 34;
    i.frameRight = 16;
    i.frameBottom = 19;
    i.surfaceInset = 17;
    i.globalScaleFactor = 0.3;
    i.alpha = 0.7;
    i.transform.set({0.4, -1, 100, 0.5, 0, 40, 0, 0, 1});
    i.touchOcclusionMode = TouchOcclusionMode::ALLOW;
    i.ownerPid = 19;
    i.ownerUid = 24;
    i.packageName = "com.example.package";
    i.inputConfig = WindowInfo::InputConfig::NOT_FOCUSABLE;
    i.displayId = 34;
    i.replaceTouchableRegionWithCrop = true;
    i.touchableRegionCropHandle = touchableRegionCropHandle;
    i.applicationInfo.name = "ApplicationFooBar";
    i.applicationInfo.token = new BBinder();
    i.applicationInfo.dispatchingTimeoutMillis = 0x12345678ABCD;
    i.focusTransferTarget = new BBinder();

    Parcel p;
    i.writeToParcel(&p);
    p.setDataPosition(0);
    WindowInfo i2;
    i2.readFromParcel(&p);
    ASSERT_EQ(i.token, i2.token);
    ASSERT_EQ(i.windowToken, i2.windowToken);
    ASSERT_EQ(i.id, i2.id);
    ASSERT_EQ(i.name, i2.name);
    ASSERT_EQ(i.layoutParamsFlags, i2.layoutParamsFlags);
    ASSERT_EQ(i.layoutParamsType, i2.layoutParamsType);
    ASSERT_EQ(i.dispatchingTimeout, i2.dispatchingTimeout);
    ASSERT_EQ(i.frameLeft, i2.frameLeft);
    ASSERT_EQ(i.frameTop, i2.frameTop);
    ASSERT_EQ(i.frameRight, i2.frameRight);
    ASSERT_EQ(i.frameBottom, i2.frameBottom);
    ASSERT_EQ(i.surfaceInset, i2.surfaceInset);
    ASSERT_EQ(i.globalScaleFactor, i2.globalScaleFactor);
    ASSERT_EQ(i.alpha, i2.alpha);
    ASSERT_EQ(i.transform, i2.transform);
    ASSERT_EQ(i.touchOcclusionMode, i2.touchOcclusionMode);
    ASSERT_EQ(i.ownerPid, i2.ownerPid);
    ASSERT_EQ(i.ownerUid, i2.ownerUid);
    ASSERT_EQ(i.packageName, i2.packageName);
    ASSERT_EQ(i.inputConfig, i2.inputConfig);
    ASSERT_EQ(i.displayId, i2.displayId);
    ASSERT_EQ(i.replaceTouchableRegionWithCrop, i2.replaceTouchableRegionWithCrop);
    ASSERT_EQ(i.touchableRegionCropHandle, i2.touchableRegionCropHandle);
    ASSERT_EQ(i.applicationInfo, i2.applicationInfo);
    ASSERT_EQ(i.focusTransferTarget, i2.focusTransferTarget);
}

TEST(WindowInfo, ParcelNameTruncation) {
    WindowInfo writeInfo;
    // Construct a long string with a 3-byte UTF-8 character ('あ') to test truncation.
    // 342 characters * 3 bytes/char = 1026 bytes, which is > 1024.
    std::string_view c = "あ";
    ASSERT_EQ(3u, c.size());
    std::string longName;
    longName.reserve(342 * 3);
    for (int i = 0; i < 342; i++) {
        longName.append(c);
    }

    ASSERT_GT(longName.length(), 1024u);
    writeInfo.name = longName;

    Parcel p;
    ASSERT_EQ(OK, writeInfo.writeToParcel(&p));
    p.setDataPosition(0);

    WindowInfo readInfo;
    ASSERT_EQ(OK, readInfo.readFromParcel(&p));

    // The name should be truncated to the last valid character boundary at or before 1024 bytes.
    // 1024 / 3 = 341.33. So, 341 characters should remain. 341 * 3 = 1023 bytes.
    EXPECT_EQ(readInfo.name.length(), 1024u);
    EXPECT_THAT(readInfo.name, testing::EndsWith("[TRUNC]"));
}

TEST(InputApplicationInfo, Parcelling) {
    InputApplicationInfo i;
    i.token = new BBinder();
    i.name = "ApplicationFooBar";
    i.dispatchingTimeoutMillis = 0x12345678ABCD;

    Parcel p;
    ASSERT_EQ(i.writeToParcel(&p), OK);
    p.setDataPosition(0);
    InputApplicationInfo i2;
    ASSERT_EQ(i2.readFromParcel(&p), OK);
    ASSERT_EQ(i, i2);
}

} // namespace test
} // namespace android