1 files changed, 24 insertions, 0 deletions
diff --git a/spec/ruby/core/dir/shared/pos.rb b/spec/ruby/core/dir/shared/pos.rb
new file mode 100644
index 0000000000..741de8918c
--- /dev/null
+++ b/spec/ruby/core/dir/shared/pos.rb
@@ -0,0 +1,24 @@
+describe :dir_pos_set, shared: true do
+  before :each do
+    @dir = Dir.open DirSpecs.mock_dir
+  end
+
+  after :each do
+    @dir.close
+  end
+
+  # NOTE: #seek/#pos= to a position not returned by #tell/#pos is undefined
+  # and should not be spec'd.
+
+  it "moves the read position to a previously obtained position" do
+    pos = @dir.pos
+    a   = @dir.read
+    b   = @dir.read
+    @dir.send @method, pos
+    c   = @dir.read
+
+    a.should_not == b
+    b.should_not == c
+    c.should == a
+  end
+end