| // WITH_STDLIB | |
| import kotlin.test.* | |
| val sb = StringBuilder() | |
| fun foo(s: String = "", vararg args: Any) { | |
| if (args == null) { | |
| sb.appendLine("Failed!") | |
| } else { | |
| sb.append("$s ") | |
| args.forEach { | |
| sb.append("$it") | |
| } | |
| sb.appendLine(", Correct!") | |
| } | |
| } | |
| fun box(): String { | |
| foo("Hello") | |
| foo("Hello", "World") | |
| foo() | |
| assertEquals(""" | |
| Hello , Correct! | |
| Hello World, Correct! | |
| , Correct! | |
| """.trimIndent(), sb.toString()) | |
| return "OK" | |
| } |