1 files changed, 42 insertions, 0 deletions
diff --git a/actionpack/test/template/text_helper_test.rb b/actionpack/test/template/text_helper_test.rb
index 66fab20710..f58e474759 100644
--- a/actionpack/test/template/text_helper_test.rb
+++ b/actionpack/test/template/text_helper_test.rb
@@ -60,6 +60,20 @@ class TextHelperTest < ActionView::TestCase
     simple_format(text)
     assert_equal text_clone, text
   end
+  
+  def test_simple_format_does_not_modify_the_html_options_hash
+    options = { :class => "foobar"}
+    passed_options = options.dup
+    simple_format("some text", passed_options)
+    assert_equal options, passed_options
+  end
+  
+  def test_simple_format_does_not_modify_the_options_hash
+    options = { :wrapper_tag => :div, :sanitize => false }
+    passed_options = options.dup
+    simple_format("some text", {}, passed_options)
+    assert_equal options, passed_options
+  end
 
   def test_truncate_should_not_be_html_safe
     assert !truncate("Hello World!", :length => 12).html_safe?
@@ -92,6 +106,13 @@ class TextHelperTest < ActionView::TestCase
     assert_equal "\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 ...".force_encoding('UTF-8'),
       truncate("\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 \354\225\204\353\235\274\353\246\254\354\230\244".force_encoding('UTF-8'), :length => 10)
   end
+  
+  def test_truncate_does_not_modify_the_options_hash
+    options = { :length => 10 }
+    passed_options = options.dup
+    truncate("some text", passed_options)
+    assert_equal options, passed_options
+  end
 
   def test_highlight_should_be_html_safe
     assert highlight("This is a beautiful morning", "beautiful").html_safe?
@@ -182,6 +203,13 @@ class TextHelperTest < ActionView::TestCase
       highlight("<div>abc div</div>", "div", :highlighter => '<b>\1</b>')
     )
   end
+  
+  def test_highlight_does_not_modify_the_options_hash
+    options = { :highlighter => '<b>\1</b>', :sanitize => false }
+    passed_options = options.dup
+    highlight("<div>abc div</div>", "div", passed_options)
+    assert_equal options, passed_options
+  end
 
   def test_excerpt
     assert_equal("...is a beautiful morn...", excerpt("This is a beautiful morning", "beautiful", :radius => 5))
@@ -228,6 +256,13 @@ class TextHelperTest < ActionView::TestCase
   def test_excerpt_with_utf8
     assert_equal("...\357\254\203ciency could not be...".force_encoding('UTF-8'), excerpt("That's why e\357\254\203ciency could not be helped".force_encoding('UTF-8'), 'could', :radius => 8))
   end
+  
+  def test_excerpt_does_not_modify_the_options_hash
+    options = { :omission => "[...]",:radius => 5 }
+    passed_options = options.dup
+    excerpt("This is a beautiful morning", "beautiful", passed_options)
+    assert_equal options, passed_options
+  end
 
   def test_word_wrap
     assert_equal("my very very\nvery long\nstring", word_wrap("my very very very long string", :line_width => 15))
@@ -236,6 +271,13 @@ class TextHelperTest < ActionView::TestCase
   def test_word_wrap_with_extra_newlines
     assert_equal("my very very\nvery long\nstring\n\nwith another\nline", word_wrap("my very very very long string\n\nwith another line", :line_width => 15))
   end
+  
+  def test_word_wrap_does_not_modify_the_options_hash
+    options = { :line_width => 15 }
+    passed_options = options.dup
+    word_wrap("some text", passed_options)
+    assert_equal options, passed_options
+  end
 
   def test_pluralization
     assert_equal("1 count", pluralize(1, "count"))