spec/zebra/epl/label_spec.rb in zebra-epl-0.0.1 vs spec/zebra/epl/label_spec.rb in zebra-epl-0.0.2

@@ -54,12 +54,12 @@
 
   describe "#dump_contents" do
     let(:io) { "" }
 
     it "dumps its contents to the received IO" do
-      label << stub(:to_s => "foobar")
-      label << stub(:to_s => "blabla")
+      label << stub(:to_epl => "foobar")
+      label << stub(:to_epl => "blabla")
       label.width          = 100
       label.length_and_gap = [200, 24]
       label.print_speed    = 3
       label.print_density  = 10
       label.dump_contents(io)
@@ -84,8 +84,32 @@
     it "raises an error if the print speed was not informed" do
       label = described_class.new
       expect {
         label.dump_contents(io)
       }.to raise_error(Zebra::Epl::Label::PrintSpeedNotInformedError)
+    end
+  end
+
+  describe "#persist" do
+    let(:tempfile) { stub.as_null_object }
+    let(:label)    { described_class.new :print_speed => 2 }
+
+    before do
+      Tempfile.stub :new => tempfile
+      label << stub(:to_epl => "foobar")
+    end
+
+    it "creates a tempfile" do
+      Tempfile.should_receive(:new).with("zebra_label").and_return(tempfile)
+      label.persist
+    end
+
+    it "returns the tempfile" do
+      label.persist.should == tempfile
+    end
+
+    it "dumps its contents to the tempfile" do
+      tempfile.should_receive(:rewind)
+      label.persist
     end
   end
 end