public function testSum()
{
//
// Integers
//
$values = [1, 2, 3, 4, 4];
$result = Statistics::sum($values);
$expected = 14;
$this->assertIdentical($expected, $result);
//
// Floats
//
$values = [-1.0, 2.5, 3.25, 5.75];
$result = Statistics::sum($values);
$expected = 10.5;
$this->assertIdentical($expected, $result);
//
// Mixed
//
$values = [-2, 2.5, 3.25, 5.75, 0];
$result = Statistics::sum($values);
$expected = 9.5;
$this->assertIdentical($expected, $result);
}
public function testSum()
{
$stats = new Statistics([]);
$this->assertEquals(0, $stats->sum(), 'Empty set sum()');
$sets = $this->getSetData();
foreach ($sets as $name => $set) {
$stats->set($name, $set['set']);
$this->assertEquals($set['sum'], $stats->sum($name), 'Set ' . $name . ' sum()');
}
}
