/** */ public function testGetDecimalPlaces() { $values = ['100' => -2, '0.0001' => 4, '10' => -1, '0.1' => 1, '1' => 0, '0.001' => 3]; foreach ($values as $was => $expected) { $is = NumberLib::getDecimalPlaces($was, 10); $this->assertSame($expected, $is); //, null, $was } }