1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/library/stringscanner/post_match_spec.rb b/spec/ruby/library/stringscanner/post_match_spec.rb
new file mode 100644
index 0000000000..720dc3530d
--- /dev/null
+++ b/spec/ruby/library/stringscanner/post_match_spec.rb
@@ -0,0 +1,28 @@
+require_relative '../../spec_helper'
+require_relative 'shared/extract_range_matched'
+require 'strscan'
+
+describe "StringScanner#post_match" do
+  before :each do
+    @s = StringScanner.new("This is a test")
+  end
+
+  it "returns the post-match (in the regular expression sense) of the last scan" do
+    @s.post_match.should == nil
+    @s.scan(/\w+\s/)
+    @s.post_match.should == "is a test"
+    @s.getch
+    @s.post_match.should == "s a test"
+    @s.get_byte
+    @s.post_match.should == " a test"
+    @s.get_byte
+    @s.post_match.should == "a test"
+  end
+
+  it "returns nil if there's no match" do
+    @s.scan(/\s+/)
+    @s.post_match.should == nil
+  end
+
+  it_behaves_like :extract_range_matched, :post_match
+end