PHPUnit - Error: Call to a member function assertEquals() on float
$this->assertEquals(21.960784313725, $float);
You should use assertEqualsWithDelta():
$this->assertEqualsWithDelta(21.960784313725, $float, 0.0001);
$this->assertEquals(21.960784313725, $float);
You should use assertEqualsWithDelta():
$this->assertEqualsWithDelta(21.960784313725, $float, 0.0001);