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      1 /*
      2  * Copyright (C) 2014 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_HAL_FINGERPRINT_TEST_COMMON__
     18 #define __ANDROID_HAL_FINGERPRINT_TEST_COMMON__
     19 
     20 #include <gtest/gtest.h>
     21 #include <hardware/hardware.h>
     22 #include <hardware/fingerprint.h>
     23 
     24 namespace tests {
     25 
     26 static const uint16_t kVersion = HARDWARE_MODULE_API_VERSION(1, 0);
     27 
     28 class FingerprintModule : public testing::Test {
     29  public:
     30     FingerprintModule() :
     31         fp_module_(NULL) {}
     32     ~FingerprintModule() {}
     33  protected:
     34     virtual void SetUp() {
     35         const hw_module_t *hw_module = NULL;
     36         ASSERT_EQ(0, hw_get_module(FINGERPRINT_HARDWARE_MODULE_ID, &hw_module))
     37                     << "Can't get fingerprint module";
     38         ASSERT_TRUE(NULL != hw_module)
     39                     << "hw_get_module didn't return a valid fingerprint module";
     40 
     41         fp_module_ = reinterpret_cast<const fingerprint_module_t*>(hw_module);
     42     }
     43     const fingerprint_module_t* fp_module() { return fp_module_; }
     44  private:
     45     const fingerprint_module_t *fp_module_;
     46 };
     47 
     48 class FingerprintDevice : public FingerprintModule {
     49  public:
     50     FingerprintDevice() :
     51         fp_device_(NULL) {}
     52     ~FingerprintDevice() {}
     53  protected:
     54     virtual void SetUp() {
     55         FingerprintModule::SetUp();
     56         hw_device_t *device = NULL;
     57         ASSERT_TRUE(NULL != fp_module()->common.methods->open)
     58                     << "Fingerprint open() is unimplemented";
     59         ASSERT_EQ(0, fp_module()->common.methods->open(
     60             (const hw_module_t*)fp_module(), NULL, &device))
     61                 << "Can't open fingerprint device";
     62         ASSERT_TRUE(NULL != device)
     63                     << "Fingerprint open() returned a NULL device";
     64         ASSERT_EQ(kVersion, device->version)
     65                     << "Unsupported version";
     66         fp_device_ = reinterpret_cast<fingerprint_device_t*>(device);
     67     }
     68     fingerprint_device_t* fp_device() { return fp_device_; }
     69  private:
     70     fingerprint_device_t *fp_device_;
     71 };
     72 
     73 }  // namespace tests
     74 
     75 #endif  // __ANDROID_HAL_FINGERPRINT_TEST_COMMON__
     76