/**
  * Test Success Counting.
  *
  * @covers \DrupalReleaseDate\EstimateDistribution::__construct
  * @covers \DrupalReleaseDate\EstimateDistribution::success
  * @covers \DrupalReleaseDate\EstimateDistribution::getSuccessCount
  */
 public function testSuccessCount()
 {
     $estimates = new EstimateDistribution();
     $this->assertEquals(0, $estimates->getSuccessCount());
     $estimates->success(1);
     $this->assertEquals(1, $estimates->getSuccessCount());
     $estimates->success(1);
     $estimates->success(2);
     $this->assertEquals(3, $estimates->getSuccessCount());
 }