1 files changed, 28 insertions, 0 deletions
diff --git a/spec/ruby/library/stringscanner/match_spec.rb b/spec/ruby/library/stringscanner/match_spec.rb
new file mode 100644
index 0000000000..227be6c3a5
--- /dev/null
+++ b/spec/ruby/library/stringscanner/match_spec.rb
@@ -0,0 +1,28 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'strscan'
+
+describe "StringScanner#match?" do
+  before :each do
+    @s = StringScanner.new("This is a test")
+  end
+
+  it "returns the length of the match and the scan pointer is not advanced" do
+    @s.match?(/\w+/).should == 4
+    @s.match?(/\w+/).should == 4
+    @s.pos.should == 0
+  end
+
+  it "returns nil if there's no match" do
+    @s.match?(/\d+/).should == nil
+    @s.match?(/\s+/).should == nil
+  end
+
+  it "effects pre_match" do
+    @s.scan(/\w+/)
+    @s.scan(/\s/)
+
+    @s.pre_match.should == "This"
+    @s.match?(/\w+/)
+    @s.pre_match.should == "This "
+  end
+end