/**
  * Test for postAnswer
  */
 public function testPostAnswer()
 {
     $user1 = factory(App\Models\User::class)->create();
     $user2 = factory(App\Models\User::class)->create();
     // create two battles
     $br = new BattleRequest();
     $br->challenger_id = $user1->id;
     $br->challenged_id = $user2->id;
     $br->save();
     // execute postAnswer()
     $this->actingAs($user1)->post('/request/' . $br->id, ['accepted' == TRUE]);
     $oP = OpenBattle::find($br->challenger_id);
     //checking the output
     $this->assertNotNull($oP);
     $this->assertEquals($user1->id, $oP->rapper1_id);
     $this->assertEquals($user2->id, $oP->rapper2_id);
 }