commit 0ea0f82a7d89190ceff5701ea012ea7611291928
author Chia-I Wu <olv@google.com> Tue Oct 31 10:14:40 2017 -0700
committer Chia-I Wu <olv@google.com> Tue Nov 21 13:20:38 2017 -0800
tree 6dc50082f26700dc0a272bbcc5b0d3360add1e48
parent 0eaea31daa067bf95e0f0a7d3051e6d8a322747b

surfaceflinger: add more setLayer tests

Add LayerTransactionTest.
  SetZBasic
  SetZNegative

Test: SurfaceFlinger_test
Change-Id: I171175b063beb3b87d72f25d77c8ae1938359fa7

services/surfaceflinger/tests/Transaction_test.cpp

diff --git a/services/surfaceflinger/tests/Transaction_test.cpp b/services/surfaceflinger/tests/Transaction_test.cpp
index 508dc67..845bc73 100644
--- a/services/surfaceflinger/tests/Transaction_test.cpp
+++ b/services/surfaceflinger/tests/Transaction_test.cpp
@@ -48,10 +48,12 @@
     uint8_t a;
 
     static const Color RED;
+    static const Color GREEN;
     static const Color BLACK;
 };
 
 const Color Color::RED{255, 0, 0, 255};
+const Color Color::GREEN{0, 255, 0, 255};
 const Color Color::BLACK{0, 0, 0, 255};
 
 std::ostream& operator<<(std::ostream& os, const Color& color) {
@@ -583,6 +585,52 @@
     screenshot()->expectColor(Rect(0, 0, 64, 64), Color::RED);
 }
 
+TEST_F(LayerTransactionTest, SetZBasic) {
+    sp<SurfaceControl> layerR;
+    sp<SurfaceControl> layerG;
+    ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
+    ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
+    ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
+    ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
+
+    Transaction().setLayer(layerR, mLayerZBase + 1).apply();
+    {
+        SCOPED_TRACE("layerR");
+        screenshot()->expectColor(Rect(0, 0, 32, 32), Color::RED);
+    }
+
+    Transaction().setLayer(layerG, mLayerZBase + 2).apply();
+    {
+        SCOPED_TRACE("layerG");
+        screenshot()->expectColor(Rect(0, 0, 32, 32), Color::GREEN);
+    }
+}
+
+TEST_F(LayerTransactionTest, SetZNegative) {
+    sp<SurfaceControl> layerR;
+    sp<SurfaceControl> layerG;
+    ASSERT_NO_FATAL_FAILURE(layerR = createLayer("test R", 32, 32));
+    ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerR, Color::RED));
+    ASSERT_NO_FATAL_FAILURE(layerG = createLayer("test G", 32, 32));
+    ASSERT_NO_FATAL_FAILURE(fillLayerColor(layerG, Color::GREEN));
+
+    Transaction().setLayer(layerR, -1).setLayer(layerG, -2).apply();
+    {
+        SCOPED_TRACE("layerR");
+        sp<ScreenCapture> screenshot;
+        ScreenCapture::captureScreen(&screenshot, -2, -1);
+        screenshot->expectColor(Rect(0, 0, 32, 32), Color::RED);
+    }
+
+    Transaction().setLayer(layerR, -3).apply();
+    {
+        SCOPED_TRACE("layerG");
+        sp<ScreenCapture> screenshot;
+        ScreenCapture::captureScreen(&screenshot, -3, -1);
+        screenshot->expectColor(Rect(0, 0, 32, 32), Color::GREEN);
+    }
+}
+
 class LayerUpdateTest : public ::testing::Test {
 protected:
     virtual void SetUp() {