Resurrect tests for StringScanner#rest?

that has not been obsolete.

Partially reverting https://github.com/ruby/ruby/pull/15049.

1 files changed, 21 insertions, 0 deletions

diff --git a/spec/ruby/library/stringscanner/rest_spec.rb b/spec/ruby/library/stringscanner/rest_spec.rb
index 25dcaf30ce..67072f880d 100644
--- a/spec/ruby/library/stringscanner/rest_spec.rb
+++ b/spec/ruby/library/stringscanner/rest_spec.rb
@@ -25,3 +25,24 @@ describe "StringScanner#rest" do
   it_behaves_like :extract_range_matched, :rest
 
 end
+
+describe "StringScanner#rest?" do
+  before :each do
+    @s = StringScanner.new("This is a test")
+  end
+
+  it "returns true if there is more data in the string" do
+    @s.rest?.should be_true
+    @s.scan(/This/)
+    @s.rest?.should be_true
+  end
+
+  it "returns false if there is no more data in the string" do
+    @s.terminate
+    @s.rest?.should be_false
+  end
+
+  it "is the opposite of eos?" do
+    @s.rest?.should_not == @s.eos?
+  end
+end