7 files changed, 33 insertions, 10 deletions
diff --git a/spec/ruby/library/erb/def_class_spec.rb b/spec/ruby/library/erb/def_class_spec.rb
index 88bd385f4c..fb687531e0 100644
--- a/spec/ruby/library/erb/def_class_spec.rb
+++ b/spec/ruby/library/erb/def_class_spec.rb
@@ -24,6 +24,8 @@ END
     MyClass1ForErb = erb.def_class(MyClass1ForErb_, 'render()')
     MyClass1ForErb.method_defined?(:render).should == true
     MyClass1ForErb.new('foo', 123).render().should == expected
+  ensure
+    Object.send(:remove_const, :MyClass1ForErb)
   end
 
 end
diff --git a/spec/ruby/library/erb/def_module_spec.rb b/spec/ruby/library/erb/def_module_spec.rb
index 806e564ef0..5f67aeb2b9 100644
--- a/spec/ruby/library/erb/def_module_spec.rb
+++ b/spec/ruby/library/erb/def_module_spec.rb
@@ -22,6 +22,9 @@ END
       include MyModule2ForErb
     end
     MyClass2ForErb.new.render('foo', 123).should == expected
+  ensure
+    Object.send(:remove_const, :MyClass2ForErb)
+    Object.send(:remove_const, :MyModule2ForErb)
   end
 
 end
diff --git a/spec/ruby/library/erb/defmethod/def_erb_method_spec.rb b/spec/ruby/library/erb/defmethod/def_erb_method_spec.rb
index dc1e044d9c..1cd7582936 100644
--- a/spec/ruby/library/erb/defmethod/def_erb_method_spec.rb
+++ b/spec/ruby/library/erb/defmethod/def_erb_method_spec.rb
@@ -58,6 +58,8 @@ END
       end
     end
     MyClass4ForErb.new([10,20,30]).render().should == expected
+  ensure
+    Object.send(:remove_const, :MY_INPUT4_FOR_ERB)
   end
 
 
diff --git a/spec/ruby/library/erb/filename_spec.rb b/spec/ruby/library/erb/filename_spec.rb
index 8ecaed7343..bbd2233bb3 100644
--- a/spec/ruby/library/erb/filename_spec.rb
+++ b/spec/ruby/library/erb/filename_spec.rb
@@ -13,7 +13,7 @@ describe "ERB#filename" do
         @ex = e
         raise e
       end
-    }.should raise_error(SyntaxError)
+    }.should.raise(SyntaxError)
     expected = filename
 
     @ex.message =~ /^(.*?):(\d+): /
@@ -30,7 +30,7 @@ describe "ERB#filename" do
         @ex = e
         raise e
       end
-    }.should raise_error(SyntaxError)
+    }.should.raise(SyntaxError)
     expected = '(erb)'
 
     @ex.message =~ /^(.*?):(\d+): /
diff --git a/spec/ruby/library/erb/new_spec.rb b/spec/ruby/library/erb/new_spec.rb
index f18e25939e..35ac0dfdfe 100644
--- a/spec/ruby/library/erb/new_spec.rb
+++ b/spec/ruby/library/erb/new_spec.rb
@@ -83,7 +83,7 @@ END
 
     -> {
       ERBSpecs.new_erb(input, trim_mode: '-').result
-    }.should raise_error(SyntaxError)
+    }.should.raise(SyntaxError)
   end
 
   it "regards lines starting with '%' as '<% ... %>' when trim_mode is '%'" do
@@ -130,12 +130,28 @@ END
 <b><%#= item %></b>
 <%# end %>
 END
-  ERBSpecs.new_erb(input).result.should == "\n<b></b>\n\n"
+    ERBSpecs.new_erb(input).result.should == "\n<b></b>\n\n"
     ERBSpecs.new_erb(input, trim_mode: '<>').result.should == "<b></b>\n"
   end
 
   it "forget local variables defined previous one" do
     ERB.new(@eruby_str).result
-    ->{ ERB.new("<%= list %>").result }.should raise_error(NameError)
+    ->{ ERB.new("<%= list %>").result }.should.raise(NameError)
+  end
+
+  version_is ERB.const_get(:VERSION, false), ""..."6.0.0" do
+    describe "warning about arguments" do
+      it "warns when passed safe_level and later arguments" do
+        -> {
+          ERB.new(@eruby_str, nil, '%')
+        }.should complain(/warning: Passing safe_level with the 2nd argument of ERB.new is deprecated. Do not use it, and specify other arguments as keyword arguments./)
+      end
+
+      it "does not warn when passed arguments as keyword argument" do
+        -> {
+          ERB.new(@eruby_str, trim_mode: '%')
+        }.should_not complain(/warning: Passing safe_level with the 2nd argument of ERB.new is deprecated. Do not use it, and specify other arguments as keyword arguments./)
+      end
+    end
   end
 end
diff --git a/spec/ruby/library/erb/result_spec.rb b/spec/ruby/library/erb/result_spec.rb
index a29c1ccedb..84333031ec 100644
--- a/spec/ruby/library/erb/result_spec.rb
+++ b/spec/ruby/library/erb/result_spec.rb
@@ -43,7 +43,7 @@ END
     input = "<%=h '<>' %>"
     -> {
       ERB.new(input).result()
-    }.should raise_error(NameError)
+    }.should.raise(NameError)
   end
 
 
@@ -81,6 +81,6 @@ END
 
     -> {
       myerb2.new.main2()
-    }.should raise_error(NameError)
+    }.should.raise(NameError)
   end
 end
diff --git a/spec/ruby/library/erb/run_spec.rb b/spec/ruby/library/erb/run_spec.rb
index 8c07442d8f..d81d534087 100644
--- a/spec/ruby/library/erb/run_spec.rb
+++ b/spec/ruby/library/erb/run_spec.rb
@@ -6,7 +6,7 @@ describe "ERB#run" do
   # lambda { ... }.should output
   def _steal_stdout
     orig = $stdout
-    s = ''
+    s = +''
     def s.write(arg); self << arg.to_s; end
     $stdout = s
     begin
@@ -54,7 +54,7 @@ END
     input = "<%=h '<>' %>"
     -> {
       _steal_stdout { ERB.new(input).run() }
-    }.should raise_error(NameError)
+    }.should.raise(NameError)
   end
 
   it "is able to h() or u() if ERB::Util is included" do
@@ -91,6 +91,6 @@ END
 
     -> {
       _steal_stdout { myerb2.new.main2() }
-    }.should raise_error(NameError)
+    }.should.raise(NameError)
   end
 end