Add unit tests for invalid transfomations in Layer
This CL extracts common set up logic for layer related tests to another
file so that it can be shared among tests.
Bug: 210837722
Test: atest libsurfaceflinger_unittest
Change-Id: I9fb08ad164d57369f503a35eca907393b1969547
diff --git a/services/surfaceflinger/tests/unittests/LayerTest.cpp b/services/surfaceflinger/tests/unittests/LayerTest.cpp
new file mode 100644
index 0000000..4974f90
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/LayerTest.cpp
@@ -0,0 +1,87 @@
+/*
+ * 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.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "LibSurfaceFlingerUnittests"
+
+#include <EffectLayer.h>
+#include <gtest/gtest.h>
+#include <ui/FloatRect.h>
+#include <ui/Transform.h>
+#include <limits>
+
+#include "LayerTestUtils.h"
+#include "TestableSurfaceFlinger.h"
+
+namespace android {
+namespace {
+
+class LayerTest : public BaseLayerTest {
+protected:
+ static constexpr const float MIN_FLOAT = std::numeric_limits<float>::min();
+ static constexpr const float MAX_FLOAT = std::numeric_limits<float>::max();
+ static constexpr const FloatRect LARGE_FLOAT_RECT{MIN_FLOAT, MIN_FLOAT, MAX_FLOAT, MAX_FLOAT};
+};
+
+INSTANTIATE_TEST_SUITE_P(PerLayerType, LayerTest,
+ testing::Values(std::make_shared<BufferStateLayerFactory>(),
+ std::make_shared<EffectLayerFactory>()),
+ PrintToStringParamName);
+
+TEST_P(LayerTest, layerVisibleByDefault) {
+ sp<Layer> layer = GetParam()->createLayer(mFlinger);
+ layer->updateGeometry();
+ layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
+ ASSERT_FALSE(layer->isHiddenByPolicy());
+}
+
+TEST_P(LayerTest, hideLayerWithZeroMatrix) {
+ sp<Layer> layer = GetParam()->createLayer(mFlinger);
+
+ layer_state_t::matrix22_t matrix{0, 0, 0, 0};
+ layer->setMatrix(matrix);
+ layer->updateGeometry();
+ layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
+
+ ASSERT_TRUE(layer->isHiddenByPolicy());
+}
+
+TEST_P(LayerTest, hideLayerWithInfMatrix) {
+ sp<Layer> layer = GetParam()->createLayer(mFlinger);
+
+ constexpr const float INF = std::numeric_limits<float>::infinity();
+ layer_state_t::matrix22_t matrix{INF, 0, 0, INF};
+ layer->setMatrix(matrix);
+ layer->updateGeometry();
+ layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
+
+ ASSERT_TRUE(layer->isHiddenByPolicy());
+}
+
+TEST_P(LayerTest, hideLayerWithNanMatrix) {
+ sp<Layer> layer = GetParam()->createLayer(mFlinger);
+
+ constexpr const float QUIET_NAN = std::numeric_limits<float>::quiet_NaN();
+ layer_state_t::matrix22_t matrix{QUIET_NAN, 0, 0, QUIET_NAN};
+ layer->setMatrix(matrix);
+ layer->updateGeometry();
+ layer->computeBounds(LARGE_FLOAT_RECT, ui::Transform(), 0.f);
+
+ ASSERT_TRUE(layer->isHiddenByPolicy());
+}
+
+} // namespace
+} // namespace android