text: /*
   *
   *    Copyright (c) 2020 Project CHIP Authors
   *
   *    Licensed under the Apache License, Version 2.0 (the "License");
   *    you may not use this file except in compliance with the License.
   *    You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *    Unless required by applicable law or agreed to in writing, software
   *    distributed under the License is distributed on an "AS IS" BASIS,
   *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *    See the License for the specific language governing permissions and
   *    limitations under the License.
   */
  #include <mdns/minimal/records/Ptr.h>
  
  #include <support/UnitTestRegistration.h>
  
  #include <nlunit-test.h>
  
  namespace {
  
  using namespace chip;
  using namespace mdns::Minimal;
  using namespace chip::Encoding;
  
  void TestPtrResourceRecord(nlTestSuite * inSuite, void * inContext)
  {
      uint8_t headerBuffer[HeaderRef::kSizeBytes];
      uint8_t dataBuffer[128];
  
      const QNamePart kName[] = { "some", "test", "local" };
      const QNamePart kPtr[]  = { "ptr", "addr" };
  
      HeaderRef header(headerBuffer);
  
      BigEndian::BufferWriter output(dataBuffer, sizeof(dataBuffer));
      PtrResourceRecord record(kName, kPtr);
  
      record.SetTtl(123);
  
      header.Clear();
  
      const uint8_t expectedOutput[] = {
          4, 's', 'o', 'm', 'e',      // QNAME part: some
          4, 't', 'e', 's', 't',      // QNAME part: test
          5, 'l', 'o', 'c', 'a', 'l', // QNAME part: local
          0,                          // QNAME ends
          0, 12,                      // QType PTR
          0, 1,                       // QClass IN
          0, 0,   0,   123,           // TTL
          0, 10,                      // data size - size data
          3, 'p', 't', 'r',           // QNAME part: ptr
          4, 'a', 'd', 'd', 'r',      // QNAME part: addr
          0                           // QNAME ends
      };
  
      NL_TEST_ASSERT(inSuite, record.Append(header, ResourceType::kAnswer, output));
      NL_TEST_ASSERT(inSuite, header.GetAnswerCount() == 1);
      NL_TEST_ASSERT(inSuite, header.GetAuthorityCount() == 0);
      NL_TEST_ASSERT(inSuite, header.GetAdditionalCount() == 0);
      NL_TEST_ASSERT(inSuite, output.Needed() == sizeof(expectedOutput));
      NL_TEST_ASSERT(inSuite, memcmp(dataBuffer, expectedOutput, sizeof(expectedOutput)) == 0);
  }
  
  const nlTest sTests[] = {
      NL_TEST_DEF("TestPtrResourceRecord", TestPtrResourceRecord), //
      NL_TEST_SENTINEL()                                           //
  };
  
  } // namespace
  
  int TestPtrResourceRecord(void)
  {
      nlTestSuite theSuite = { "PtrResourceRecord", sTests, nullptr, nullptr };
      nlTestRunner(&theSuite, nullptr);
      return nlTestRunnerStats(&theSuite);
  }
  
  CHIP_REGISTER_TEST_SUITE(TestPtrResourceRecord)
  