improve error message when include assertions fail

assert [1, 3].includes?(2) fails with unhelpful "Asserting failed" message

assert_includes [1, 3], 2 fails with "Expected [1, 3] to include 2" which makes it easier to debug and more obvious what went wrong

1 files changed, 5 insertions, 5 deletions

diff --git a/activesupport/test/multibyte_chars_test.rb b/activesupport/test/multibyte_chars_test.rb
index 54429f4aab..5ff1543328 100644
--- a/activesupport/test/multibyte_chars_test.rb
+++ b/activesupport/test/multibyte_chars_test.rb
@@ -213,11 +213,11 @@ class MultibyteCharsUTF8BehaviourTest < ActiveSupport::TestCase
   end
 
   def test_should_know_if_one_includes_the_other
-    assert @chars.include?("")
-    assert @chars.include?("ち")
-    assert @chars.include?("わ")
-    assert !@chars.include?("こちわ")
-    assert !@chars.include?("a")
+    assert_includes @chars, ""
+    assert_includes @chars, "ち"
+    assert_includes @chars, "わ"
+    assert_not_includes @chars, "こちわ"
+    assert_not_includes @chars, "a"
   end
 
   def test_include_raises_when_nil_is_passed