1 files changed, 23 insertions, 3 deletions
diff --git a/spec/ruby/core/string/shared/chars.rb b/spec/ruby/core/string/shared/chars.rb
index c730643cf4..826d403589 100644
--- a/spec/ruby/core/string/shared/chars.rb
+++ b/spec/ruby/core/string/shared/chars.rb
@@ -11,10 +11,9 @@ describe :string_chars, shared: true do
 
   it "returns self" do
     s = StringSpecs::MyString.new "hello"
-    s.send(@method){}.should equal(s)
+    s.send(@method){}.should.equal?(s)
   end
 
-
   it "is unicode aware" do
     "\303\207\342\210\202\303\251\306\222g".send(@method).to_a.should ==
       ["\303\207", "\342\210\202", "\303\251", "\306\222", "g"]
@@ -34,7 +33,7 @@ describe :string_chars, shared: true do
   it "works if the String's contents is invalid for its encoding" do
     xA4 = [0xA4].pack('C')
     xA4.force_encoding('UTF-8')
-    xA4.valid_encoding?.should be_false
+    xA4.valid_encoding?.should == false
     xA4.send(@method).to_a.should == [xA4.force_encoding("UTF-8")]
   end
 
@@ -63,4 +62,25 @@ describe :string_chars, shared: true do
       [0xA2].pack('C').force_encoding('SJIS')
     ]
   end
+
+  it "returns individual chars for dummy encodings" do
+    "ab".dup.force_encoding(Encoding::UTF_7).send(@method).to_a.should == [
+      "\x61".dup.force_encoding(Encoding::UTF_7),
+      "\x62".dup.force_encoding(Encoding::UTF_7)
+    ]
+
+    "abcd".dup.force_encoding(Encoding::UTF_16).send(@method).to_a.should == [
+      "\x61".dup.force_encoding(Encoding::UTF_16),
+      "\x62".dup.force_encoding(Encoding::UTF_16),
+      "\x63".dup.force_encoding(Encoding::UTF_16),
+      "\x64".dup.force_encoding(Encoding::UTF_16)
+    ]
+
+    "abcd".dup.force_encoding(Encoding::UTF_32).send(@method).to_a.should == [
+      "\x61".dup.force_encoding(Encoding::UTF_32),
+      "\x62".dup.force_encoding(Encoding::UTF_32),
+      "\x63".dup.force_encoding(Encoding::UTF_32),
+      "\x64".dup.force_encoding(Encoding::UTF_32)
+    ]
+  end
 end