1 /*
2  * Copyright (C) 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 #ifndef ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_1_2_UTILS_TEST_MOCK_DEVICE_H
18 #define ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_1_2_UTILS_TEST_MOCK_DEVICE_H
19 
20 #include <android/hardware/neuralnetworks/1.2/IDevice.h>
21 #include <gmock/gmock.h>
22 #include <gtest/gtest.h>
23 #include <hidl/Status.h>
24 
25 namespace android::hardware::neuralnetworks::V1_2::utils {
26 
27 using CacheToken =
28         hidl_array<uint8_t, static_cast<uint32_t>(V1_2::Constant::BYTE_SIZE_OF_CACHE_TOKEN)>;
29 
30 class MockDevice final : public IDevice {
31   public:
32     static sp<MockDevice> create();
33 
34     // IBase methods below.
35     MOCK_METHOD(Return<void>, ping, (), (override));
36     MOCK_METHOD(Return<bool>, linkToDeathRet, ());
37     Return<bool> linkToDeath(const sp<hidl_death_recipient>& recipient, uint64_t /*cookie*/);
38 
39     // V1_0 methods below.
40     MOCK_METHOD(Return<void>, getCapabilities, (getCapabilities_cb cb), (override));
41     MOCK_METHOD(Return<void>, getSupportedOperations,
42                 (const V1_0::Model& model, getSupportedOperations_cb cb), (override));
43     MOCK_METHOD(Return<V1_0::ErrorStatus>, prepareModel,
44                 (const V1_0::Model& model, const sp<V1_0::IPreparedModelCallback>& callback),
45                 (override));
46     MOCK_METHOD(Return<V1_0::DeviceStatus>, getStatus, (), (override));
47 
48     // V1_1 methods below.
49     MOCK_METHOD(Return<void>, getCapabilities_1_1, (getCapabilities_1_1_cb cb), (override));
50     MOCK_METHOD(Return<void>, getSupportedOperations_1_1,
51                 (const V1_1::Model& model, getSupportedOperations_1_1_cb cb), (override));
52     MOCK_METHOD(Return<V1_0::ErrorStatus>, prepareModel_1_1,
53                 (const V1_1::Model& model, V1_1::ExecutionPreference preference,
54                  const sp<V1_0::IPreparedModelCallback>& callback),
55                 (override));
56 
57     // V1_2 methods below.
58     MOCK_METHOD(Return<void>, getVersionString, (getVersionString_cb cb), (override));
59     MOCK_METHOD(Return<void>, getType, (getType_cb cb), (override));
60     MOCK_METHOD(Return<void>, getCapabilities_1_2, (getCapabilities_1_2_cb cb), (override));
61     MOCK_METHOD(Return<void>, getSupportedExtensions, (getSupportedExtensions_cb cb), (override));
62     MOCK_METHOD(Return<void>, getSupportedOperations_1_2,
63                 (const V1_2::Model& model, getSupportedOperations_1_2_cb cb), (override));
64     MOCK_METHOD(Return<void>, getNumberOfCacheFilesNeeded, (getNumberOfCacheFilesNeeded_cb cb),
65                 (override));
66     MOCK_METHOD(Return<V1_0::ErrorStatus>, prepareModel_1_2,
67                 (const V1_2::Model& model, V1_1::ExecutionPreference preference,
68                  const hidl_vec<hidl_handle>& modelCache, const hidl_vec<hidl_handle>& dataCache,
69                  const CacheToken& token, const sp<V1_2::IPreparedModelCallback>& callback),
70                 (override));
71     MOCK_METHOD(Return<V1_0::ErrorStatus>, prepareModelFromCache,
72                 (const hidl_vec<hidl_handle>& modelCache, const hidl_vec<hidl_handle>& dataCache,
73                  const CacheToken& token, const sp<V1_2::IPreparedModelCallback>& callback),
74                 (override));
75 
76     // Helper methods.
77     void simulateCrash();
78 
79   private:
80     sp<hidl_death_recipient> mDeathRecipient;
81 };
82 
create()83 inline sp<MockDevice> MockDevice::create() {
84     auto mockDevice = sp<MockDevice>::make();
85 
86     // Setup default actions for each relevant call.
87     const auto ret = []() -> Return<bool> { return true; };
88 
89     // Setup default actions for each relevant call.
90     ON_CALL(*mockDevice, linkToDeathRet()).WillByDefault(testing::Invoke(ret));
91 
92     // These EXPECT_CALL(...).Times(testing::AnyNumber()) calls are to suppress warnings on the
93     // uninteresting methods calls.
94     EXPECT_CALL(*mockDevice, linkToDeathRet()).Times(testing::AnyNumber());
95 
96     return mockDevice;
97 }
98 
linkToDeath(const sp<hidl_death_recipient> & recipient,uint64_t)99 inline Return<bool> MockDevice::linkToDeath(const sp<hidl_death_recipient>& recipient,
100                                             uint64_t /*cookie*/) {
101     mDeathRecipient = recipient;
102     return linkToDeathRet();
103 }
104 
simulateCrash()105 inline void MockDevice::simulateCrash() {
106     ASSERT_NE(nullptr, mDeathRecipient.get());
107 
108     // Currently, the utils::Device will not use the `cookie` or `who` arguments, so we pass in 0
109     // and nullptr for these arguments instead. Normally, they are used by the hidl_death_recipient
110     // to determine which object is dead. However, the utils::Device code only pairs a single death
111     // recipient with a single HIDL interface object, so these arguments are redundant.
112     mDeathRecipient->serviceDied(0, nullptr);
113 }
114 
115 }  // namespace android::hardware::neuralnetworks::V1_2::utils
116 
117 #endif  // ANDROID_HARDWARE_INTERFACES_NEURALNETWORKS_1_2_UTILS_TEST_MOCK_DEVICE_H
118