1 /*
2 * Copyright 2020 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #undef LOG_TAG
18 #define LOG_TAG "LibSurfaceFlingerUnittests"
19
20 #include "DisplayTransactionTestHelpers.h"
21
22 namespace android {
23 namespace {
24
25 class DestroyDisplayTest : public DisplayTransactionTest {};
26
TEST_F(DestroyDisplayTest,destroyDisplayClearsCurrentStateForDisplay)27 TEST_F(DestroyDisplayTest, destroyDisplayClearsCurrentStateForDisplay) {
28 using Case = NonHwcVirtualDisplayCase;
29
30 // --------------------------------------------------------------------
31 // Preconditions
32
33 // A virtual display exists
34 auto existing = Case::Display::makeFakeExistingDisplayInjector(this);
35 existing.inject();
36
37 // --------------------------------------------------------------------
38 // Call Expectations
39
40 // The call should notify the interceptor that a display was created.
41 EXPECT_CALL(*mSurfaceInterceptor, saveDisplayDeletion(_)).Times(1);
42
43 // Destroying the display invalidates the display state.
44 EXPECT_CALL(*mMessageQueue, invalidate()).Times(1);
45
46 // --------------------------------------------------------------------
47 // Invocation
48
49 mFlinger.destroyDisplay(existing.token());
50
51 // --------------------------------------------------------------------
52 // Postconditions
53
54 // The display should have been removed from the current state
55 EXPECT_FALSE(hasCurrentDisplayState(existing.token()));
56
57 // Ths display should still exist in the drawing state
58 EXPECT_TRUE(hasDrawingDisplayState(existing.token()));
59
60 // The display transaction needed flasg should be set
61 EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
62 }
63
TEST_F(DestroyDisplayTest,destroyDisplayHandlesUnknownDisplay)64 TEST_F(DestroyDisplayTest, destroyDisplayHandlesUnknownDisplay) {
65 // --------------------------------------------------------------------
66 // Preconditions
67
68 sp<BBinder> displayToken = new BBinder();
69
70 // --------------------------------------------------------------------
71 // Invocation
72
73 mFlinger.destroyDisplay(displayToken);
74 }
75
76 } // namespace
77 } // namespace android
78