title: OCUnit test cases not running
body: <p>If I create a new project which includes unit tests, the test cases get called. But when I'm adding tests to an existing project I'm getting the following in the log:</p>
  
  <blockquote>
  <pre><code>2013-05-21 19:41:08.814 otest[51593:7e03] Unknown Device Type. Using UIUserInterfaceIdiomPhone based on screen size
  Test Suite '/Users/impadmin/Library/Developer/Xcode/DerivedData/SmartDiary-frrybdtgyyjgewbialqsmxkwvlxs/Build/Products/Debug-iphonesimulator/testSmartDiary.octest(Tests)'
  </code></pre>
    
    <p>started at 2013-05-21 14:11:09 +0000
        Test Suite 'testShowContacts' started at 2013-05-21 14:11:09 +0000
        Test Suite 'testShowContacts' finished at 2013-05-21 14:11:09 +0000.
        Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.000) seconds</p>
  </blockquote>
  
  <p>I've added the <code>SenTestKit</code> to the frameworks, and then added the testing bundle via Add Target.
  Where am I going wrong?</p>
  
  <p>Let me add the method and its test case here:</p>
  
  <p>//the method to be tested</p>
  
  <pre><code>-(IBAction)addTask{
      if(!([mPriority.text isEqualToString:@"1"] ||[mPriority.text isEqualToString:@"2"] ||[mPriority.text isEqualToString:@"3"] ||[mPriority.text isEqualToString:@"4"] ||[mPriority.text isEqualToString:@"5"]))
      {
          NSLog(@"Enter valid Priority value");
      }
      else if ([mTaskName.text isEqualToString:@""]) {
              NSLog(@"Task name can't be blank");
          }
          else{
      sqlite3_stmt    *statement;
      const char *dbPath = [mDatabasePath UTF8String];
      //[[appViewController returnObject].mDatabasePath UTF8String];
  
      if (sqlite3_open(dbPath, &amp;mDiary) == SQLITE_OK)
      {
          NSLog(@"%@",mPriority.text);
  
          NSString *insertSQL2=[NSString stringWithFormat:@"INSERT INTO TODO VALUES(\"%@\",\"%@\",\"%@\",\"%@\",\"%@\")",mStartDate.text,mEndDate.text,mTaskName.text,mTaskDescription.text,mPriority.text];
          NSLog(@"%@",insertSQL2);
          const char *insert_stmt2 = [insertSQL2 UTF8String];
          sqlite3_prepare_v2(mDiary, insert_stmt2,
                             -1, &amp;statement, NULL);
          NSLog(@"%@",mPriority.text);
          if (sqlite3_step(statement) == SQLITE_DONE )
          { 
              mStartDate.text=@"";
              mEndDate.text=@"";
              mTaskName.text=@"";
              mTaskDescription.text=@"";
              mPriority.text=@"";
          }
          else {
  
              NSLog(@"failed to add");
          }
          sqlite3_finalize(statement);
          sqlite3_close(mDiary);
          }
      }
  
  
  }
  </code></pre>
  
  <p>//here's the test:</p>
  
  <pre><code>-(void)testAddTask
  {
      AddTaskViewController *obj;
      obj = [[AddTaskViewController alloc]init];
      obj.mTaskName.text = @"t1";
      obj.mTaskDescription.text = @"t2";
      obj.mStartDate.text = @"56987";
      obj.mEndDate.text = @"55425";
      obj.mPriority.text = @"3";
  
      [obj addTask];
      sqlite3_stmt *statement;
      const char *dbpath = [obj.mDatabasePath UTF8String];
      if (sqlite3_open(dbpath,&amp;mDiaryTest)== SQLITE_OK) {
          NSString *selectSQL = [NSString stringWithFormat:@"SELECT * FROM TODO WHERE mTaskName = \"%@\"",obj.mTaskName.text];
          const char *query_stmt = [selectSQL UTF8String];
          if (sqlite3_prepare_v2(mDiaryTest,
                                 query_stmt, -1, &amp;statement, NULL) == SQLITE_OK)
          {
              if(sqlite3_step(statement) == SQLITE_ROW)
              {
                  testString = [[NSString alloc]initWithUTF8String:(const char *) sqlite3_column_text(statement, 1)];
              }
          }
      }
      sqlite3_finalize(statement);
      sqlite3_close(mDiaryTest);
      NSLog(@"%@",testString);
      STAssertEquals(testString,@"t2",@"should be equal");
  
  }
  </code></pre>
  
  <p>I found that in target dependencies the project was unchecked. I checked it and tested again, whereupon I'm getting the following errors:</p>
  
  <pre><code>Undefined symbols for architecture i386:
    "_OBJC_CLASS_$_AddTaskViewController", referenced from:
        objc-class-ref in testAddTask.o
    "_sqlite3_close", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
    "_sqlite3_column_text", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
    "_sqlite3_finalize", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
    "_sqlite3_open", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
    "_sqlite3_prepare_v2", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
    "_sqlite3_step", referenced from:
        -[testAddTask testAddTask] in testAddTask.o
  ld: symbol(s) not found for architecture i386
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>I know this is probably going off topic, since the original question was entirely different, but can anyone please tell me why these errors are coming? I've added the necessary frameworks.</p>