when no arguments are given, print help properly

wwood · Jul 9, 2012 · 7011d9a · 7011d9a
1 parent 9a12dbb
commit 7011d9a
Show file tree

Hide file tree

Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/bin/kmer_counter.rb b/bin/kmer_counter.rb
@@ -23,7 +23,7 @@
   :progressbar => true,
 }
 
-OptionParser.new do |opts|
+o = OptionParser.new do |opts|
   opts.banner = USAGE
 
   opts.on("-w", "--window-size SIZE", "Length of the window to be used [default #{options[:window_size]}]") do |v|
@@ -92,7 +92,7 @@
   opts.on("--trace options",String,"Set log level [default INFO]. e.g. '--trace debug' to set logging level to DEBUG") do | s |
     Bio::Log::CLI.trace(s)
   end
-end.parse!
+end; o.parse!
 if ARGV.length != 1
   $stderr.puts o
   exit 1

diff --git a/test/test_bio-kmer_counter.rb b/test/test_bio-kmer_counter.rb
@@ -95,4 +95,11 @@ def script_path
       end
     end
   end
+
+  should "print help when no arguments are given" do
+    command = "#{script_path}"
+    Open3.popen3(command) do |stdin, stdout, stderr|
+      assert stderr.readlines[0].match(/^Usage: kmer_counter/)
+    end
+  end
 end