* ext/bigdecimal/bigdecimal.c (BigDecimal_sub):

  need to specify precision for converting Rational and Float.
  [ruby-dev:46544] [Bug #7404]

* ext/bigdecimal/bigdecimal.c (BigDecimal_mult): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_DoDivmod): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_divremain): ditto.

* test/bigdecimal/test_bigdecimal.rb: add tests for the above fixes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 40 insertions, 0 deletions

diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb
index 51d2e8f309..07c79a8874 100644
--- a/test/bigdecimal/test_bigdecimal.rb
+++ b/test/bigdecimal/test_bigdecimal.rb
@@ -652,6 +652,14 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(BigDecimal.new((2**100-1).to_s), x - 1)
   end
 
+  def test_sub_with_float
+    assert_kind_of(BigDecimal, BigDecimal.new("3") - 1.0)
+  end
+
+  def test_sub_with_rational
+    assert_kind_of(BigDecimal, BigDecimal.new("3") - 1.quo(3))
+  end
+
   def test_mult
     x = BigDecimal.new((2**100).to_s)
     assert_equal(BigDecimal.new((2**100 * 3).to_s), (x * 3).to_i)
@@ -660,6 +668,14 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(BigDecimal.new((2**200).to_s), (x * x).to_i)
   end
 
+  def test_mult_with_float
+    assert_kind_of(BigDecimal, BigDecimal.new("3") * 1.5)
+  end
+
+  def test_mult_with_rational
+    assert_kind_of(BigDecimal, BigDecimal.new("3") * 1.quo(3))
+  end
+
   def test_div
     x = BigDecimal.new((2**100).to_s)
     assert_equal(BigDecimal.new((2**100 / 3).to_s), (x / 3).to_i)
@@ -669,6 +685,14 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(-2, BigDecimal.new("2") / -1)
   end
 
+  def test_div_with_float
+    assert_kind_of(BigDecimal, BigDecimal.new("3") / 1.5)
+  end
+
+  def test_div_with_rational
+    assert_kind_of(BigDecimal, BigDecimal.new("3") / 1.quo(3))
+  end
+
   def test_mod
     x = BigDecimal.new((2**100).to_s)
     assert_equal(1, x % 3)
@@ -677,6 +701,14 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(-1, (-x) % -3)
   end
 
+  def test_mod_with_float
+    assert_kind_of(BigDecimal, BigDecimal.new("3") % 1.5)
+  end
+
+  def test_mod_with_rational
+    assert_kind_of(BigDecimal, BigDecimal.new("3") % 1.quo(3))
+  end
+
   def test_remainder
     x = BigDecimal.new((2**100).to_s)
     assert_equal(1, x.remainder(3))
@@ -685,6 +717,14 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(-1, (-x).remainder(-3))
   end
 
+  def test_remainder_with_float
+    assert_kind_of(BigDecimal, BigDecimal.new("3").remainder(1.5))
+  end
+
+  def test_remainder_with_rational
+    assert_kind_of(BigDecimal, BigDecimal.new("3").remainder(1.quo(3)))
+  end
+
   def test_divmod
     x = BigDecimal.new((2**100).to_s)
     assert_equal([(x / 3).floor, 1], x.divmod(3))