nobu	2018-11-12 16:32:21 +0900 (Mon, 12 Nov 2018)

  New Revision: 65683

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=65683

  Log:
    Adopt [Misc #15294]

  Modified files:
    trunk/spec/ruby/library/erb/new_spec.rb
Index: spec/ruby/library/erb/new_spec.rb
===================================================================
--- spec/ruby/library/erb/new_spec.rb	(revision 65682)
+++ spec/ruby/library/erb/new_spec.rb	(revision 65683)
@@ -31,11 +31,19 @@ END https://github.com/ruby/ruby/blob/trunk/spec/ruby/library/erb/new_spec.rb#L31
 
   it "compiles eRuby script into ruby code when trim mode is 0 or not specified" do
     expected = "<ul>\n\n\n\n<li>1</li>\n\n\n\n<li>2</li>\n\n\n\n<li>3</li>\n\n\n</ul>\n"
-    [0, '', nil].each do |trim_mode|
+    [0, nil].each do |trim_mode|
       ERBSpecs.new_erb(@eruby_str, trim_mode: trim_mode).result.should == expected
     end
   end
 
+  ruby_version_is "2.6" do
+    it "warns invalid trim_mode" do
+      lambda do
+        ERBSpecs.new_erb(@eruby_str, trim_mode: '')
+      end.should output(nil, /Invalid ERB trim mode/)
+    end
+  end
+
   it "removes '\n' when trim_mode is 1 or '>'" do
     expected = "<ul>\n<li>1</li>\n<li>2</li>\n<li>3</li>\n</ul>\n"
     [1, '>'].each do |trim_mode|

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