test/ruby: suppress warnings

* test/ruby/test_array.rb: (need_continuation): suppress warnings
  to require continuation.

* test/ruby/test_continuation.rb: ditto.

* test/ruby/test_enum.rb: ditto.

* test/ruby/test_fiber.rb: ditto.

* test/ruby/test_hash.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48642 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_array.rb

@@ -805,7 +805,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_flatten_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     o = Object.new
     def o.to_ary() callcc {|k| @cont = k; [1,2,3]} end
     begin
@@ -819,7 +819,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_permutation_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = [1,2,3]
@@ -836,7 +836,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_product_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = [1,2,3]
@@ -853,7 +853,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_combination_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = [1,2,3]
@@ -870,7 +870,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_repeated_permutation_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = [1,2,3]
@@ -887,7 +887,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_repeated_combination_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = [1,2,3]
@@ -1365,7 +1365,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_sort_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     n = 1000
     cont = nil
     ary = (1..100).to_a
@@ -2030,7 +2030,7 @@ class TestArray < Test::Unit::TestCase
   end
 
   def test_reject_with_callcc
-    respond_to?(:callcc, true) or require 'continuation'
+    need_continuation
     bug9727 = '[ruby-dev:48101] [Bug #9727]'
     cont = nil
     a = [*1..10].reject do |i|
@@ -2495,4 +2495,11 @@ class TestArray < Test::Unit::TestCase
       skip e.message
     end
   end
+
+  private
+  def need_continuation
+    unless respond_to?(:callcc, true)
+      EnvUtil.suppress_warning {require 'continuation'}
+    end
+  end
 end

test/ruby/test_continuation.rb

@@ -1,5 +1,5 @@
 require 'test/unit'
-require 'continuation'
+EnvUtil.suppress_warning {require 'continuation'}
 require 'fiber'
 
 class TestContinuation < Test::Unit::TestCase

test/ruby/test_enum.rb

@@ -1,5 +1,5 @@
 require 'test/unit'
-require 'continuation'
+EnvUtil.suppress_warning {require 'continuation'}
 require 'stringio'
 
 class TestEnumerable < Test::Unit::TestCase

test/ruby/test_fiber.rb

@@ -1,6 +1,6 @@
 require 'test/unit'
 require 'fiber'
-require 'continuation'
+EnvUtil.suppress_warning {require 'continuation'}
 require 'tmpdir'
 
 class TestFiber < Test::Unit::TestCase

test/ruby/test_hash.rb

@@ -1,6 +1,6 @@
 # -*- coding: us-ascii -*-
 require 'test/unit'
-require 'continuation'
+EnvUtil.suppress_warning {require 'continuation'}
 
 class TestHash < Test::Unit::TestCase