audacity/tests/SequenceTest.cpp

#include "Sequence.h"
#include "DirManager.h"
#include <wx/hash.h>
#include <vector>
#include <iostream>

class SequenceTest
{
private:
   Sequence *mSequence;
   DirManager *mDirManager;
   std::vector<float> mMemorySequence;

public:
   SequenceTest()
   {
      std::cout << "==> Testing Sequence\n";
      srand(time(NULL));
   }

   void SetUp()
   {
      DirManager::SetTempDir("/tmp/sequence-test-dir");
      mDirManager = new DirManager;

      mSequence = new Sequence(mDirManager, floatSample);

      mMemorySequence.clear();
   }

   void TearDown()
   {
      delete mSequence;
      delete mDirManager;
      mMemorySequence.clear();
   }

   void TestReferencing()
   {
      /* Thrash the Sequence through repeated appends, deletes, etc.
       * Then delete the sequence and ensure that all blocks have
       * been unreferenced to the point of deletion -- the dirmanager
       * should be empty. */

      std::cout << "\tafter thrashing the sequence and deleting it, all block files should have been deleted..." << std::flush;

      int appendBufLen = (int)(mSequence->GetMaxBlockSize() * 1.4);
      samplePtr appendBuf = NewSamples(appendBufLen, floatSample);
      int i;

      for(i = 0; i < 10; i++)
         mSequence->Append(appendBuf, floatSample, appendBufLen);

      for(i = 0; i < 10; i++)
      {
         Sequence *tmpSequence;

         /* append */

         mSequence->Append(appendBuf, floatSample, appendBufLen);

         /* copy/paste */

         int s0 = rand()%mSequence->GetNumSamples();
         int len = rand()%(mSequence->GetNumSamples() - s0);
         mSequence->Copy(s0, s0+len, &tmpSequence);

         int dest = rand()%mSequence->GetNumSamples();
         mSequence->Paste(dest, tmpSequence);
         delete tmpSequence;

         /* delete */

         int del = rand()%mSequence->GetNumSamples();
         int dellen = rand()%((mSequence->GetNumSamples()-del)/2);

         mSequence->Delete(del, dellen);
      }

      delete mSequence;
      mSequence = NULL;

      assert(mDirManager->blockFileHash->GetCount() == 0);

      std::cout << "ok\n";
   }

   void TestSetGarbageInput()
   {
      std::cout << "\tSequence::Set() should return false (and not crash) if given garbage input..." << std::flush;

      /* Create 10 samples in the sequence so the Set requests will
       * be valid */
      samplePtr appendBuf = NewSamples(10, floatSample);
      mSequence->Append(appendBuf, floatSample, 10);

      /* should fail, "set" buffer should not be null */
      assert(mSequence->Set(NULL, floatSample, 0, 10) == false);

      /* should fail, -5 is not a sample format */
      assert(mSequence->Set(appendBuf, (sampleFormat)-5, 0, 10) == false);

      /* should fail, -1 is not a valid offset */
      assert(mSequence->Set(appendBuf, floatSample, -1, 10) == false);

      /* should fail, the sequence is only 10 samples long */
      assert(mSequence->Set(appendBuf, floatSample, 0, 15) == false);

      std::cout << "ok\n";
   }

   void TestGetGarbageInput()
   {
      std::cout << "\tSequence::Get() should return false (and not crash) if given garbage input..." << std::flush;

      /* Create 10 samples in the sequence so the Set requests will
       * be valid */
      samplePtr appendBuf = NewSamples(10, floatSample);
      mSequence->Append(appendBuf, floatSample, 10);

      /* should fail, "get" buffer should not be null */
      assert(mSequence->Get(NULL, floatSample, 0, 10) == false);

      /* should fail, -1 is not a valid offset */
      assert(mSequence->Get(appendBuf, floatSample, -1, 10) == false);

      /* should fail, the sequence is only 10 samples long */
      assert(mSequence->Get(appendBuf, floatSample, 0, 15) == false);

      std::cout << "ok\n";
   }

};

int main()
{
   SequenceTest tester;

   tester.SetUp();
   tester.TestReferencing();
   tester.TearDown();

   tester.SetUp();
   tester.TestSetGarbageInput();
   tester.TearDown();

   tester.SetUp();
   tester.TestGetGarbageInput();
   tester.TearDown();

   return 0;
}

class wxWindow;

void ShowWarningDialog(wxWindow *parent,
                      wxString internalDialogName,
                      wxString message)
{
   std::cout << "warning: " << message << std::endl;
}

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// version control system. Please do not modify past this point.
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