function test_formatNum() { $test_data = array(array('test' => 1000, 'result' => '1,000'), array('test' => 1000.1, 'result' => '1,000.1'), array('test' => 1000.12, 'result' => '1,000.12'), array('test' => 1000.123, 'result' => '1,000.123'), array('test' => 123456789.123, 'result' => '123,456,789.123')); foreach ($test_data as $data) { $this->assertEquals($data['result'], FOX_math::formatNum($data['test'])); } }