diff --git a/test/unit/user_test.rb b/test/unit/user_test.rb
index 7fe66824d..d7cc68794 100644
--- a/test/unit/user_test.rb
+++ b/test/unit/user_test.rb
@@ -54,8 +54,7 @@ class UserTest < ActiveSupport::TestCase
     u = User.new
     u.mail = ''
     assert !u.valid?
-    assert_equal I18n.translate('activerecord.errors.messages.blank'),
-                 u.errors[:mail].to_s
+    assert_include I18n.translate('activerecord.errors.messages.blank'), u.errors[:mail]
   end
 
   def test_login_length_validation
@@ -110,8 +109,7 @@ class UserTest < ActiveSupport::TestCase
       u.login = 'NewUser'
       u.password, u.password_confirmation = "password", "password"
       assert !u.save
-      assert_equal I18n.translate('activerecord.errors.messages.taken'),
-                   u.errors[:login].to_s
+      assert_include I18n.translate('activerecord.errors.messages.taken'), u.errors[:login]
     end
   end
 
@@ -125,8 +123,7 @@ class UserTest < ActiveSupport::TestCase
     u.login = 'newuser2'
     u.password, u.password_confirmation = "password", "password"
     assert !u.save
-    assert_equal I18n.translate('activerecord.errors.messages.taken'),
-                 u.errors[:mail].to_s
+    assert_include I18n.translate('activerecord.errors.messages.taken'), u.errors[:mail]
   end
 
   def test_update
diff --git a/test/unit/version_test.rb b/test/unit/version_test.rb
index 2cab5598f..3195ab614 100644
--- a/test/unit/version_test.rb
+++ b/test/unit/version_test.rb
@@ -33,8 +33,8 @@ class VersionTest < ActiveSupport::TestCase
   def test_invalid_effective_date_validation
     v = Version.new(:project => Project.find(1), :name => '1.1', :effective_date => '99999-01-01')
     assert !v.save
-    assert_equal I18n.translate('activerecord.errors.messages.not_a_date'),
-                 v.errors[:effective_date].to_s
+    assert_include I18n.translate('activerecord.errors.messages.not_a_date'),
+                   v.errors[:effective_date]
   end
 
   def test_progress_should_be_0_with_no_assigned_issues
diff --git a/test/unit/wiki_page_test.rb b/test/unit/wiki_page_test.rb
index 5c49c9854..607718e2c 100644
--- a/test/unit/wiki_page_test.rb
+++ b/test/unit/wiki_page_test.rb
@@ -85,18 +85,18 @@ class WikiPageTest < ActiveSupport::TestCase
     # A page that doesn't exist
     page.parent_title = 'Unknown title'
     assert !page.save
-    assert_equal I18n.translate('activerecord.errors.messages.invalid'),
-                 page.errors[:parent_title].to_s
+    assert_include I18n.translate('activerecord.errors.messages.invalid'),
+                   page.errors[:parent_title]
     # A child page
     page.parent_title = 'Page_with_an_inline_image'
     assert !page.save
-    assert_equal I18n.translate('activerecord.errors.messages.circular_dependency'),
-                 page.errors[:parent_title].to_s
+    assert_include I18n.translate('activerecord.errors.messages.circular_dependency'),
+                   page.errors[:parent_title]
     # The page itself
     page.parent_title = 'CookBook_documentation'
     assert !page.save
-    assert_equal I18n.translate('activerecord.errors.messages.circular_dependency'),
-                 page.errors[:parent_title].to_s
+    assert_include I18n.translate('activerecord.errors.messages.circular_dependency'),
+                   page.errors[:parent_title]
     page.parent_title = 'Another_page'
     assert page.save
   end