1 files changed, 20 insertions, 4 deletions
diff --git a/activesupport/test/core_ext/string_ext_test.rb b/activesupport/test/core_ext/string_ext_test.rb
index 2f4691817f..e32c178951 100644
--- a/activesupport/test/core_ext/string_ext_test.rb
+++ b/activesupport/test/core_ext/string_ext_test.rb
@@ -260,8 +260,24 @@ class StringInflectionsTest < ActiveSupport::TestCase
   end
 
   def test_remove
-    assert_equal "Summer", "Fast Summer".remove(/Fast /)
-    assert_equal "Summer", "Fast Summer".remove!(/Fast /)
+    original = "This is a good day to die"
+    assert_equal "This is a good day", original.remove(" to die")
+    assert_equal "This is a good day", original.remove(" to ", /die/)
+    assert_equal "This is a good day to die", original
+  end
+
+  def test_remove_for_multiple_occurrences
+    original = "This is a good day to die to die"
+    assert_equal "This is a good day", original.remove(" to die")
+    assert_equal "This is a good day to die to die", original
+  end
+
+  def test_remove!
+    original = "This is a very good day to die"
+    assert_equal "This is a good day to die", original.remove!(" very")
+    assert_equal "This is a good day to die", original
+    assert_equal "This is a good day", original.remove!(" to ", /die/)
+    assert_equal "This is a good day", original
   end
 
   def test_constantize
@@ -404,11 +420,11 @@ class StringConversionsTest < ActiveSupport::TestCase
   end
 
   def test_partial_string_to_time
-    with_env_tz "Europe/Moscow" do
+    with_env_tz "Europe/Moscow" do # use timezone which does not observe DST.
       now = Time.now
       assert_equal Time.local(now.year, now.month, now.day, 23, 50), "23:50".to_time
       assert_equal Time.utc(now.year, now.month, now.day, 23, 50), "23:50".to_time(:utc)
-      assert_equal Time.local(now.year, now.month, now.day, 18, 50), "13:50 -0100".to_time
+      assert_equal Time.local(now.year, now.month, now.day, 17, 50), "13:50 -0100".to_time
       assert_equal Time.utc(now.year, now.month, now.day, 23, 50), "22:50 -0100".to_time(:utc)
     end
   end