public function testIf()
{
$t = new \Test\Flow();
$this->assertSame($t->testIf1(), 1);
$this->assertSame($t->testIf2(), 0);
$this->assertSame($t->testIf3(), 1);
$this->assertSame($t->testIf4(), 0);
$this->assertSame($t->testIf5(), 1);
$this->assertSame($t->testIf6(), 0);
$this->assertSame($t->testIf7(), 1);
$this->assertSame($t->testIf8(), 0);
$this->assertSame($t->testIf9(), 1);
$this->assertSame($t->testIf10(), 654);
$this->assertSame($t->testIf12(), 987);
$this->assertSame($t->testIf13(), -12);
$this->assertSame($t->testIf14(), 74);
$this->assertSame($t->testIf15(), 89);
$this->assertTrue($t->testIf16(array()));
$this->assertTrue($t->testIf16(''));
$this->assertTrue($t->testIf16(null));
$this->assertFalse($t->testIf16(' '));
}