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package scala.runtime
import org.junit.Assert._
import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
/** Tests for the runtime object ScalaRunTime */
@RunWith(classOf[JUnit4])
class ScalaRunTimeTest {
@Test
def testStingOf() {
import ScalaRunTime.stringOf
import scala.collection._
import parallel.ParIterable
assertEquals("null", stringOf(null))
assertEquals( "\"\"", stringOf(""))
assertEquals("abc", stringOf("abc"))
assertEquals("\" abc\"", stringOf(" abc"))
assertEquals("\"abc \"", stringOf("abc "))
assertEquals("""Array()""", stringOf(Array.empty[AnyRef]))
assertEquals("""Array()""", stringOf(Array.empty[Int]))
assertEquals("""Array(1, 2, 3)""", stringOf(Array(1, 2, 3)))
assertEquals("""Array(a, "", " c", null)""", stringOf(Array("a", "", " c", null)))
assertEquals("""Array(Array("", 1, Array(5)), Array(1))""",
stringOf(Array(Array("", 1, Array(5)), Array(1))))
val map = Map(1->"", 2->"a", 3->" a", 4->null)
assertEquals(s"""${map.stringPrefix}(1 -> "", 2 -> a, 3 -> " a", 4 -> null)""", stringOf(map))
assertEquals(s"""${map.stringPrefix}(1 -> "", 2 -> a)""", stringOf(map, 2))
val iterable = Iterable("a", "", " c", null)
assertEquals(s"""${iterable.stringPrefix}(a, "", " c", null)""", stringOf(iterable))
assertEquals(s"""${iterable.stringPrefix}(a, "")""", stringOf(iterable, 2))
val parIterable = ParIterable("a", "", " c", null)
assertEquals(s"""${parIterable.stringPrefix}(a, "", " c", null)""", stringOf(parIterable))
assertEquals(s"""${parIterable.stringPrefix}(a, "")""", stringOf(parIterable, 2))
val traversable = new Traversable[Int] {
def foreach[U](f: Int => U): Unit = (0 to 3).foreach(f)
}
assertEquals(s"${traversable.stringPrefix}(0, 1, 2, 3)", stringOf(traversable))
assertEquals(s"${traversable.stringPrefix}(0, 1)", stringOf(traversable, 2))
val tuple1 = Tuple1(0)
assertEquals("(0,)", stringOf(tuple1))
assertEquals("(0,)", stringOf(tuple1, 0))
assertEquals("(Array(0),)", stringOf(Tuple1(Array(0))))
val tuple2 = Tuple2(0, 1)
assertEquals("(0,1)", stringOf(tuple2))
assertEquals("(0,1)", stringOf(tuple2, 0))
assertEquals("(Array(0),1)", stringOf((Array(0), 1)))
val tuple3 = Tuple3(0, 1, 2)
assertEquals("(0,1,2)", stringOf(tuple3))
assertEquals("(0,1,2)", stringOf(tuple3, 0))
assertEquals("(Array(0),1,2)", stringOf((Array(0), 1, 2)))
val x = new Object {
override def toString(): String = "this is the stringOf string"
}
assertEquals(stringOf(x), "this is the stringOf string")
assertEquals(stringOf(x, 2), "this is the stringOf string")
}
}
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