public function testLocate()
{
$string = new Str('Hello Php World');
$this->assertFalse($string->locate('AA'));
$this->assertFalse($string->locate('L', 0, Str::CASE_SENSITIVE));
$this->assertEquals(10, $string->locate('W'));
$this->assertEquals(13, $string->locate('l', 5));
$this->expectsException(function () use($string) {
$string->locate([]);
}, Exception::class, null, Exception::INVALID_PARAMETER);
$this->expectsException(function () use($string) {
$string->locate('ss', 'aa');
}, Exception::class, null, Exception::INVALID_PARAMETER);
$this->expectsException(function () use($string) {
$string->locate('test', -2);
}, Exception::class, null, Exception::INVALID_PARAMETER);
$this->assertEquals(13, $string->locate('l', 0, Str::FROM_END));
$this->assertEquals(8, $string->locate('P', 0, Str::FROM_END));
$this->assertEquals(6, $string->locate('P', 0, Str::FROM_END | Str::CASE_SENSITIVE));
}
