test/ruby/test_symbol.rb: tests for [Bug #8531]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41343 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 29 insertions, 1 deletions

diff --git a/test/ruby/test_symbol.rb b/test/ruby/test_symbol.rb
index 02cc804933..012c487fd4 100644
--- a/test/ruby/test_symbol.rb
+++ b/test/ruby/test_symbol.rb
@@ -33,7 +33,7 @@ class TestSymbol < Test::Unit::TestCase
     assert_inspect_evaled(':foo')
     assert_inspect_evaled(':foo!')
     assert_inspect_evaled(':bar?')
-    assert_inspect_evaled(':<<')
+    assert_inspect_evaled(":<<")
     assert_inspect_evaled(':>>')
     assert_inspect_evaled(':<=')
     assert_inspect_evaled(':>=')
@@ -114,6 +114,34 @@ class TestSymbol < Test::Unit::TestCase
     assert_raise(ArgumentError) { :foo.to_proc.call }
   end
 
+  def m_block_given?
+    block_given?
+  end
+
+  def m2_block_given?(m = nil)
+    if m
+      [block_given?, m.call(self)]
+    else
+      block_given?
+    end
+  end
+
+  def test_block_given_to_proc
+    bug8531 = '[Bug #8531]'
+    m = :m_block_given?.to_proc
+    assert(!m.call(self), "#{bug8531} without block")
+    assert(m.call(self) {}, "#{bug8531} with block")
+    assert(!m.call(self), "#{bug8531} without block second")
+  end
+
+  def test_block_persist_between_calls
+    bug8531 = '[Bug #8531]'
+    m = :m_block_given?.to_proc
+    m2 = :m2_block_given?.to_proc
+    assert_equal([true, false], m2.call(self) {}, "#{bug8531} nested with block")
+    assert_equal([false, false], m2.call(self), "#{bug8531} nested without block")
+  end
+
   def test_succ
     assert_equal(:fop, :foo.succ)
   end