about summary refs log tree commit homepage
path: root/test/helper.rb
diff options
context:
space:
mode:
Diffstat (limited to 'test/helper.rb')
-rw-r--r--test/helper.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/helper.rb b/test/helper.rb
index 1812e99..397d2c3 100644
--- a/test/helper.rb
+++ b/test/helper.rb
@@ -99,3 +99,11 @@ class Dir
     end
   end
 end unless Dir.respond_to?(:mktmpdir)
+
+def guitar_pluck(outfile)
+  outfile =~ %r{\A[\w\./-]+\z} or raise ArgumentError, "bad chars"
+  cmd = '(for n in E2 A2 D3 G3 B3 E4; do '\
+         'sox -n -ts32 -c2 -r44100 - synth 4 pluck $n; done ) | ' \
+         "sox -ts32 -c2 -r44100 - #{outfile}"
+  assert_equal(true, system(cmd), cmd)
+end