public function testInsert()
{
$string = new Str('Keep Objective');
$this->expectsException(function () use($string) {
$string->insert('string', '30');
}, Exception::class, null, Exception::INVALID_PARAMETER);
$this->expectsException(function () use($string) {
$string->insert([], []);
}, Exception::class, null, Exception::INVALID_PARAMETER);
$this->expectsException(function () use($string) {
$string->insert(['array'], 30);
}, Exception::class, null, Exception::INVALID_PARAMETER);
$string = new Str('Objective');
$extendedString = $string->insert('Keep', 0);
$this->isInstanceOf(Str::class, $extendedString);
$this->assertEquals('KeepObjective', $extendedString->getInternalValue());
$string = (new Str('Keep'))->insert('Objective', 99);
$this->assertEquals('KeepObjective', $string->getInternalValue());
$string = (new Str('Keep'))->insert(new Str('Objective'), -2);
$this->assertEquals('KeObjectiveep', $string->getInternalValue());
$string = (new Str('Keep'))->insert('Objective', 3);
$this->assertEquals('KeeObjectivep', $string->getInternalValue());
}
