Scala example source code file (bigints.scala)

This example Scala source code file (bigints.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

assert, assert, bigdecimal, bigdecimal, bigint, test, test_bigdecimal, test_bigdecimal, test_bigint, test_bigint, testcase, testconsolemain, testsuite

The Scala bigints.scala source code

//############################################################################
// BigInt, BigDecimal 
//############################################################################

//############################################################################

import testing.SUnit._

/** Test the Scala implementation of class <code>scala.BigDecimal.
*
*  @author Stephane Micheloud
*/
object Test extends TestConsoleMain {
  def suite = new TestSuite(
    Test_BigInt,
    Test_BigDecimal
  )
}

object Test_BigInt extends TestCase("BigInt") with Assert {
  override def enableStackTrace = false
  override def runTest {
    import BigInt._

    val x: BigInt = 1
    val y = x + 1
    val z = 1 + y
    assertEquals("int_add_bigint", 1+y, y+1)
    assertEquals("int_sub_bigint", 1-y, -(y-1))
    assertEquals("int_mul_bigint", 2*x*y, y*x*2)
    assertTrue("z_<=_3", z <= 3)
    assertFalse("3_<_z", 3 < z)
  }
}

object Test_BigDecimal extends TestCase("BigDecimal") with Assert {
  override def enableStackTrace = false
  override def runTest {
    import scala.BigDecimal, BigDecimal._

    val xi: BigDecimal = 1
    val xd: BigDecimal = 1.0
    val xf: BigDecimal = BigDecimal(1.0f)
    val xs: BigDecimal = BigDecimal("1.0")
    val xbi: BigDecimal = BigDecimal(scala.BigInt(1))

    val x: BigDecimal = 1
    val y = x + 1
    val z = 1 + y
    assertTrue("z_<=_3", z <= 3)
    assertFalse("3_<_z", 3 < z)

    val a: BigDecimal= Math.MAX_LONG
    val b: BigDecimal = 1
    val c = a - b
    assertFalse("c_>_MAX_LONG", c > Math.MAX_LONG)
    assertTrue("c_<=_MAX_LONG", c <= Math.MAX_LONG)
  }
}