[ruby/bigdecimal] Let BigDecimal_DoDivmod use the same precision calculation as BigDecimal_divide

https://github.com/ruby/bigdecimal/commit/11cb2c8840

1 files changed, 7 insertions, 0 deletions

diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb
index 66b58aa124..26d346b364 100644
--- a/test/bigdecimal/test_bigdecimal.rb
+++ b/test/bigdecimal/test_bigdecimal.rb
@@ -1043,6 +1043,13 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_raise(ZeroDivisionError){BigDecimal("0").divmod(0)}
   end
 
+  def test_divmod_precision
+    a = BigDecimal('2e55')
+    b = BigDecimal('1.23456789e10')
+    q, r = a.divmod(b)
+    assert_equal((a/b), q)
+  end
+
   def test_divmod_error
     assert_raise(TypeError) { BigDecimal(20).divmod('2') }
   end