Eris\Quantifier\SizeTest::testProducesAListOfSizesIncreasingThemTriangularly PHP Method

    public function testProducesAListOfSizesIncreasingThemTriangularly()
    {
        $size = Size::withTriangleGrowth(1000);
        $this->assertEquals(0, $size->at(0));
        $this->assertEquals(1, $size->at(1));
        $this->assertEquals(3, $size->at(2));
        $this->assertEquals(6, $size->at(3));
        $this->assertEquals(10, $size->at(4));
    }