diff options
Diffstat (limited to 'test/bigdecimal/test_bigdecimal.rb')
| -rw-r--r-- | test/bigdecimal/test_bigdecimal.rb | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb index 055b0ff4f0..02467937e5 100644 --- a/test/bigdecimal/test_bigdecimal.rb +++ b/test/bigdecimal/test_bigdecimal.rb @@ -1210,11 +1210,35 @@ class TestBigDecimal < Test::Unit::TestCase end def test_BigMath_exp - n = 20 - assert_in_epsilon(Math.exp(n), BigMath.exp(BigDecimal("20"), n)) - assert_in_epsilon(Math.exp(40), BigMath.exp(BigDecimal("40"), n)) - assert_in_epsilon(Math.exp(-n), BigMath.exp(BigDecimal("-20"), n)) - assert_in_epsilon(Math.exp(-40), BigMath.exp(BigDecimal("-40"), n)) + prec = 20 + assert_in_epsilon(Math.exp(20), BigMath.exp(BigDecimal("20"), prec)) + assert_in_epsilon(Math.exp(40), BigMath.exp(BigDecimal("40"), prec)) + assert_in_epsilon(Math.exp(-20), BigMath.exp(BigDecimal("-20"), prec)) + assert_in_epsilon(Math.exp(-40), BigMath.exp(BigDecimal("-40"), prec)) + end + + def test_BigMath_exp_with_float + prec = 20 + assert_in_epsilon(Math.exp(20), BigMath.exp(20.0, prec)) + assert_in_epsilon(Math.exp(40), BigMath.exp(40.0, prec)) + assert_in_epsilon(Math.exp(-20), BigMath.exp(-20.0, prec)) + assert_in_epsilon(Math.exp(-40), BigMath.exp(-40.0, prec)) + end + + def test_BigMath_exp_with_fixnum + prec = 20 + assert_in_epsilon(Math.exp(20), BigMath.exp(20, prec)) + assert_in_epsilon(Math.exp(40), BigMath.exp(40, prec)) + assert_in_epsilon(Math.exp(-20), BigMath.exp(-20, prec)) + assert_in_epsilon(Math.exp(-40), BigMath.exp(-40, prec)) + end + + def test_BigMath_exp_with_rational + prec = 20 + assert_in_epsilon(Math.exp(20), BigMath.exp(Rational(40,2), prec)) + assert_in_epsilon(Math.exp(40), BigMath.exp(Rational(80,2), prec)) + assert_in_epsilon(Math.exp(-20), BigMath.exp(Rational(-40,2), prec)) + assert_in_epsilon(Math.exp(-40), BigMath.exp(Rational(-80,2), prec)) end def test_BigMath_exp_under_gc_stress |