BigDecimal adjustments.

More sensible use of MathContext, plus some BigDecimal tests.
Contributed by Erik Osheim. Closes SI-4981, no review.

1 files changed, 35 insertions, 0 deletions

diff --git a/test/files/run/bigDecimalTest.scala b/test/files/run/bigDecimalTest.scala
new file mode 100644
index 0000000000..480305d7d4
--- /dev/null
+++ b/test/files/run/bigDecimalTest.scala
@@ -0,0 +1,35 @@
+object Test {
+  def main(args: Array[String]): Unit = {
+
+    // SI-4981: avoid being limited by math context when not needed
+    val big = BigDecimal("32432875832753287583275382753288325325328532875325")
+    val f = big % BigDecimal(scala.math.Pi)
+
+    // SI-1812: use math context to limit decimal expansion
+    val a = BigDecimal(1) / BigDecimal(3)
+    val b = BigDecimal(1) / big
+
+    // SI-2199: implicit conversions from java.math.BigDecimal to BigDecimal
+    val c = BigDecimal(1) + (new java.math.BigDecimal(3))
+
+    // SI-2024: correctly use BigDecimal.valueOf
+    assert(BigDecimal(123) + 1.1 == BigDecimal("124.1"))
+
+    // SI-3206: BigDecimal cache errors
+    val d = BigDecimal(2, new java.math.MathContext(33))
+    val e = BigDecimal(2, new java.math.MathContext(34))
+    assert(d.mc != e.mc)
+
+    // SI-921
+    assert(BigDecimal(2) / BigDecimal(0.5) == BigDecimal(4))
+
+    // SI-2304: enforce equals/hashCode contract
+    assert(BigDecimal("2").hashCode == BigDecimal("2.00").hashCode)
+
+    // SI-4547: implicit conversion
+    assert(5 + BigDecimal(3) == BigDecimal(8))
+
+    // meaningless sanity check
+    List[BigDecimal](a, b, c, d, e, f) map (_.scale) foreach println
+  }
+}