From 4e8d6c105c22c40f1abf1aab357419e8f4ef2f5b Mon Sep 17 00:00:00 2001
From: mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 17 Aug 2011 06:35:21 +0000
Subject: Merge branch '5172_bigdecimal_gc_issue' into trunk

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32996 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/bigdecimal/test_bigdecimal.rb | 45 +++++++++++++++++++++++++++++++++++++-
 test/bigdecimal/testbase.rb        |  7 ++++++
 2 files changed, 51 insertions(+), 1 deletion(-)

(limited to 'test/bigdecimal')

diff --git a/test/bigdecimal/test_bigdecimal.rb b/test/bigdecimal/test_bigdecimal.rb
index e3ae631820..a9524bb2ae 100644
--- a/test/bigdecimal/test_bigdecimal.rb
+++ b/test/bigdecimal/test_bigdecimal.rb
@@ -1086,7 +1086,7 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_equal(BigDecimal::SIGN_NEGATIVE_ZERO, BigDecimal.new("-1E-1" + "0" * 10000).sign)
   end
 
-  def test_gc
+  def test_split_under_gc_stress
     bug3258 = '[ruby-dev:41213]'
     stress, GC.stress = GC.stress, true
     10.upto(20) do |i|
@@ -1097,6 +1097,21 @@ class TestBigDecimal < Test::Unit::TestCase
     GC.stress = stress
   end
 
+  def test_coerce_under_gc_stress
+    expect = ":too_long_to_embed_as_string can't be coerced into BigDecimal"
+    under_gc_stress do
+      b = BigDecimal.new("1")
+      10.times do
+        begin
+          b.coerce(:too_long_to_embed_as_string)
+        rescue => e
+          assert_instance_of TypeError, e
+          assert_equal expect, e.message
+        end
+      end
+    end
+  end
+
   def test_INFINITY
     assert(BigDecimal::INFINITY.infinite?, "BigDecimal::INFINITY is not a infinity")
   end
@@ -1157,6 +1172,20 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_in_epsilon(Math.exp(-40), BigMath.exp(BigDecimal("-40"), n))
   end
 
+  def test_BigMath_exp_under_gc_stress
+    expect = ":too_long_to_embed_as_string can't be coerced into BigDecimal"
+    under_gc_stress do
+      10.times do
+        begin
+          BigMath.exp(:too_long_to_embed_as_string, 6)
+        rescue => e
+          assert_instance_of ArgumentError, e
+          assert_equal expect, e.message
+        end
+      end
+    end
+  end
+
   def test_BigMath_log_with_nil
     assert_raise(ArgumentError) do
       BigMath.log(nil, 20)
@@ -1241,4 +1270,18 @@ class TestBigDecimal < Test::Unit::TestCase
     assert_in_delta(Math.log(1e-42), BigMath.log(1e-42, 20))
     assert_in_delta(Math.log(1e-42), BigMath.log(BigDecimal("1e-42"), 20))
   end
+
+  def test_BigMath_log_under_gc_stress
+    expect = ":too_long_to_embed_as_string can't be coerced into BigDecimal"
+    under_gc_stress do
+      10.times do
+        begin
+          BigMath.log(:too_long_to_embed_as_string, 6)
+        rescue => e
+          assert_instance_of ArgumentError, e
+          assert_equal expect, e.message
+        end
+      end
+    end
+  end
 end
diff --git a/test/bigdecimal/testbase.rb b/test/bigdecimal/testbase.rb
index 275b1b2b5d..c014e61e92 100644
--- a/test/bigdecimal/testbase.rb
+++ b/test/bigdecimal/testbase.rb
@@ -17,4 +17,11 @@ module TestBigDecimalBase
       BigDecimal.mode(mode, !(@mode & mode).zero?)
     end
   end
+
+  def under_gc_stress
+    stress, GC.stress = GC.stress, true
+    yield
+  ensure
+    GC.stress = stress
+  end
 end
-- 
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