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More sensible use of MathContext, plus some BigDecimal tests. Contributed by Erik Osheim. Closes SI-4981, no review.
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object Test { | ||
def main(args: Array[String]): Unit = { | ||
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// SI-4981: avoid being limited by math context when not needed | ||
val big = BigDecimal("32432875832753287583275382753288325325328532875325") | ||
val f = big % BigDecimal(scala.math.Pi) | ||
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// SI-1812: use math context to limit decimal expansion | ||
val a = BigDecimal(1) / BigDecimal(3) | ||
val b = BigDecimal(1) / big | ||
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// SI-2199: implicit conversions from java.math.BigDecimal to BigDecimal | ||
val c = BigDecimal(1) + (new java.math.BigDecimal(3)) | ||
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// SI-2024: correctly use BigDecimal.valueOf | ||
assert(BigDecimal(123) + 1.1 == BigDecimal("124.1")) | ||
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// 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) | ||
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// SI-921 | ||
assert(BigDecimal(2) / BigDecimal(0.5) == BigDecimal(4)) | ||
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// SI-2304: enforce equals/hashCode contract | ||
assert(BigDecimal("2").hashCode == BigDecimal("2.00").hashCode) | ||
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// SI-4547: implicit conversion | ||
assert(5 + BigDecimal(3) == BigDecimal(8)) | ||
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// meaningless sanity check | ||
List[BigDecimal](a, b, c, d, e, f) map (_.scale) foreach println | ||
} | ||
} |