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 // Destroying the display commits a display transaction.
41 EXPECT_CALL(*mFlinger.scheduler(), scheduleFrame(_)).Times(1);
42
43 // --------------------------------------------------------------------
44 // Invocation
45
46 EXPECT_EQ(NO_ERROR, mFlinger.destroyVirtualDisplay(existing.token()));
47
48 // --------------------------------------------------------------------
49 // Postconditions
50
51 // The display should have been removed from the current state.
52 EXPECT_FALSE(hasCurrentDisplayState(existing.token()));
53
54 // Ths display should still exist in the drawing state.
55 EXPECT_TRUE(hasDrawingDisplayState(existing.token()));
56
57 // The display transaction needed flags should be set.
58 EXPECT_TRUE(hasTransactionFlagSet(eDisplayTransactionNeeded));
59 }
60
TEST_F(DestroyDisplayTest,destroyDisplayHandlesUnknownDisplay)61 TEST_F(DestroyDisplayTest, destroyDisplayHandlesUnknownDisplay) {
62 // --------------------------------------------------------------------
63 // Preconditions
64
65 sp<BBinder> displayToken = sp<BBinder>::make();
66
67 // --------------------------------------------------------------------
68 // Invocation
69
70 EXPECT_EQ(NAME_NOT_FOUND, mFlinger.destroyVirtualDisplay(displayToken));
71 }
72
73 } // namespace
74 } // namespace android
75