/** * @author Andreas Glaser */ public function testIsBlank() { $this->assertTrue(StringHelper::isBlank(' ')); $this->assertTrue(StringHelper::isBlank(' ')); $this->assertTrue(StringHelper::isBlank(null)); $this->assertFalse(StringHelper::isBlank('a')); $this->assertFalse(StringHelper::isBlank(' a ')); $this->assertFalse(StringHelper::isBlank(0)); }