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      1 /*
      2  * Copyright (C) 2015 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 #include <gtest/gtest.h>
     18 #include "vehicle_test_fixtures.h"
     19 #include "hardware/vehicle.h"
     20 
     21 namespace tests {
     22 
     23 // Check if list_properties command exists.
     24 TEST_F(VehicleDevice, isThereListProperties) {
     25     ASSERT_TRUE(NULL != vehicle_device()->list_properties)
     26         << "list_properties() function is not implemented";
     27     std::cout << "Test succeeds.\n";
     28 }
     29 
     30 // HAL should provide atleast one property. The output of this command should be
     31 // used to verify the vailidity of the function.
     32 TEST_F(VehicleDevice, listPropertiesMoreThanOne) {
     33     vehicle_prop_config_t const* config;
     34     int num_configs = -1;
     35     config = vehicle_device()->list_properties(vehicle_device(), &num_configs);
     36     ASSERT_TRUE(num_configs > -1) << "list_properties() call failed.";
     37     ASSERT_TRUE(num_configs > 0) << "list_properties() returned zero items.";
     38     std::cout << "Number of properties reported: " << num_configs << "\n";
     39     for (int i = 0; i < num_configs; i++) {
     40         // Print each of the properties.
     41         const vehicle_prop_config_t& config_temp = config[i];
     42         std::cout << "Property ID: " << config_temp.prop << "\n";
     43         std::cout << "Property flags: " << config_temp.config_flags << "\n";
     44         std::cout << "Property change mode: " << config_temp.change_mode << "\n";
     45         std::cout << "Property min sample rate: " << config_temp.min_sample_rate << "\n";
     46         std::cout << "Property max sample rate: " << config_temp.max_sample_rate << "\n\n";
     47     }
     48 }
     49 
     50 // Test get() command.
     51 // The fields are hardcoded in the dummy implementation and here.
     52 TEST_F(VehicleDevice, getDriveState) {
     53     vehicle_prop_value_t data;
     54     data.prop = VEHICLE_PROPERTY_DRIVING_STATUS;
     55     // Set drive_state field to EINVAL so that we can check that its valid when
     56     // it comes back.
     57     data.value_type = -EINVAL;
     58     data.value.driving_status = -EINVAL;
     59     vehicle_device()->get(vehicle_device(), &data);
     60 
     61     // Check that retured values are not invalid.
     62     ASSERT_NE(data.value_type, -EINVAL) << "Drive state value type should be integer.";
     63     ASSERT_NE(data.value.driving_status, -EINVAL) << "Driving status should be positive.";
     64 
     65     std::cout << "Driving status value type: " << data.value_type << "\n"
     66               << "Driving status: " << data.value.driving_status << "\n";
     67 }
     68 
     69 // Test the workflows for subscribe and init/release.
     70 // Subscribe will return error before init() is called or after release() is
     71 // called.
     72 TEST_F(VehicleDevice, initTest) {
     73     // Test that init on a new device works. When getting an instance, we are
     74     // already calling 'open' on the device.
     75     int ret_code =
     76         vehicle_device()->init(vehicle_device(), callback_fn(), error_fn());
     77     ASSERT_EQ(ret_code, 0) << "ret code: " << ret_code;
     78 
     79     // Trying to init again should return an error.
     80     ret_code = vehicle_device()->init(vehicle_device(), callback_fn(), error_fn());
     81     ASSERT_EQ(ret_code, -EEXIST) << "ret code: " << ret_code;
     82 
     83     // Uninit should always return 0.
     84     ret_code = vehicle_device()->release(vehicle_device());
     85     ASSERT_EQ(ret_code, 0) << "ret code: " << ret_code;
     86 
     87     // We should be able to init again.
     88     ret_code = vehicle_device()->init(vehicle_device(), callback_fn(), error_fn());
     89     ASSERT_EQ(ret_code, 0) << "ret code: " << ret_code;
     90 
     91     // Finally release.
     92     ret_code = vehicle_device()->release(vehicle_device());
     93     ASSERT_EQ(ret_code, 0) << "ret_code: " << ret_code;
     94 }
     95 
     96 // Test that subscribe works.
     97 // We wait for 10 seconds while which the vehicle.c can post messages from
     98 // within it's own thread.
     99 TEST_F(VehicleDevice, subscribeTest) {
    100     // If the device is not init subscribe should fail off the bat.
    101     int ret_code = vehicle_device()->subscribe(vehicle_device(), VEHICLE_PROPERTY_DRIVING_STATUS,
    102             0, 0);
    103     ASSERT_EQ(ret_code, -EINVAL) << "Return code is: " << ret_code;
    104 
    105     // Let's init the device.
    106     ret_code = vehicle_device()->init(vehicle_device(), callback_fn(), error_fn());
    107     ASSERT_EQ(ret_code, 0) << "Return code is: " << ret_code;
    108 
    109     // Subscribe should now go through.
    110     ret_code = vehicle_device()->subscribe(vehicle_device(), VEHICLE_PROPERTY_DRIVING_STATUS, 0, 0);
    111     ASSERT_EQ(ret_code, 0) << "Return code is: " << ret_code;
    112 
    113     // We should start getting some messages thrown from the callback. Let's
    114     // wait for 20 seconds before unsubscribing.
    115     std::cout << "Sleeping for 20 seconds.";
    116     sleep(20);
    117     std::cout << "Waking from sleep.";
    118 
    119     // This property does not exist, so we should get -EINVAL.
    120     ret_code = vehicle_device()->unsubscribe(vehicle_device(), VEHICLE_PROPERTY_INFO_VIN);
    121     ASSERT_EQ(ret_code, -EINVAL) << "Return code is: " << ret_code;
    122 
    123     // This property exists, so we should get a success return code - also this
    124     // will be a blocking call.
    125     ret_code = vehicle_device()->unsubscribe(vehicle_device(), VEHICLE_PROPERTY_DRIVING_STATUS);
    126     ASSERT_EQ(ret_code, 0) << "Return code is: " << ret_code;
    127 }
    128 
    129 }  // namespace tests
    130