Add String#squish and String#squish! to remove consecutive chunks of whitespace. Closes #11123 [jordi, Henrik N]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8878 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

1 files changed, 17 insertions, 0 deletions

diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb
index e1525d6170..19a30f1730 100644
--- a/activesupport/test/core_ext/string_ext_test.rb
+++ b/activesupport/test/core_ext/string_ext_test.rb
@@ -168,6 +168,23 @@ class StringInflectionsTest < Test::Unit::TestCase
     assert !s.end_with?('el')
   end
 
+  def test_string_squish
+    original = %{ A string with tabs(\t\t), newlines(\n\n), and
+                  many spaces(  ). }
+
+    expected = "A string with tabs( ), newlines( ), and many spaces( )."
+
+    # Make sure squish returns what we expect:
+    assert_equal original.squish,  expected
+    # But doesn't modify the original string:
+    assert_not_equal original, expected
+
+    # Make sure squish! returns what we expect:
+    assert_equal original.squish!, expected
+    # And changes the original string:
+    assert_equal original, expected
+  end
+
   if RUBY_VERSION < '1.9'
     def test_each_char_with_utf8_string_when_kcode_is_utf8
       old_kcode, $KCODE = $KCODE, 'UTF8'