3 files changed, 6 insertions, 3 deletions
diff --git a/actionview/test/template/render_test.rb b/actionview/test/template/render_test.rb
index f77b81f0ee..94af1dc3ad 100644
--- a/actionview/test/template/render_test.rb
+++ b/actionview/test/template/render_test.rb
@@ -61,9 +61,10 @@ module RenderTestCases
 
   def test_render_template_with_a_missing_partial_of_another_format
     @view.lookup_context.formats = [:html]
-    assert_raise ActionView::Template::Error, "Missing partial /_missing with {:locale=>[:en], :formats=>[:json], :handlers=>[:erb, :builder]}" do
+    e = assert_raise ActionView::Template::Error do
       @view.render(:template => "with_format", :formats => [:json])
     end
+    assert_includes(e.message, "Missing partial /_missing with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :builder, :ruby]}.")
   end
 
   def test_render_file_with_locale
diff --git a/actionview/test/template/template_test.rb b/actionview/test/template/template_test.rb
index c94508d678..aae6a9aa09 100644
--- a/actionview/test/template/template_test.rb
+++ b/actionview/test/template/template_test.rb
@@ -183,10 +183,11 @@ class TestERBTemplate < ActiveSupport::TestCase
   end
 
   def test_error_when_template_isnt_valid_utf8
-    assert_raises(ActionView::Template::Error, /\xFC/) do
+    e = assert_raises ActionView::Template::Error do
       @template = new_template("hello \xFCmlat", :virtual_path => nil)
       render
     end
+    assert_match(/\xFC/, e.message)
   end
 
   def with_external_encoding(encoding)
diff --git a/actionview/test/template/test_case_test.rb b/actionview/test/template/test_case_test.rb
index 5ad1938b61..c6cc47fb4f 100644
--- a/actionview/test/template/test_case_test.rb
+++ b/actionview/test/template/test_case_test.rb
@@ -328,9 +328,10 @@ module ActionView
     test "supports specifying locals (failing)" do
       controller.controller_path = "test"
       render(:template => "test/calling_partial_with_layout")
-      assert_raise ActiveSupport::TestCase::Assertion, /Somebody else.*David/m do
+      e = assert_raise ActiveSupport::TestCase::Assertion do
         assert_template :partial => "_partial_for_use_in_layout", :locals => { :name => "Somebody Else" }
       end
+      assert_match(/Somebody Else.*David/m, e.message)
     end
 
     test 'supports different locals on the same partial' do