public function test_formatters() { $this->assertEquals('foohoo boo', Formatter::to_lower('FooHoo Boo')); $this->assertEquals('FOOHOO BOO', Formatter::to_upper('FooHoo Boo')); $this->assertEquals('Foohoo boo', Formatter::to_upper_first('foohoo boo')); $this->assertEquals('Foohoo Boo', Formatter::to_upper_words('foohoo boo')); $this->assertEquals('foo', Formatter::trim(' foo ')); $this->assertEquals('1', Formatter::truncate('1234567890', 1)); $this->assertEquals('1234', Formatter::truncate('1234567890', 4)); }