Write a function that will add two integers as input.
Example
1+2 => 3
int addition(int a, int b){
return a+b;
}
// See https://pub.dartlang.org/packages/test
import "package:test/test.dart";
import "package:solution/solution.dart";
void main() {
group("Tests", () {
test('1+1=', ()=> expect(addition(1, 1), equals(2)));
test('2+0=', ()=> expect(addition(2, 0), equals(2)));
test('123+321=', ()=> expect(addition(123, 321), equals(444)));
});
}