add specs

spec/mycmd/clis/settings_commands_spec.rb

@@ -34,14 +34,36 @@
 
   describe "#memories" do
     let(:args){["memories"]}
+    before {Mycmd::Configuration.stub(:get_variables).and_return(create_variables)}
 
-    it "returns expected threads" do
-      Mycmd::Configuration.stub(:get_variables).and_return(create_variables)
+    after do
       expect(
         capture(:stdout) {
           Mycmd::SettingsCommands.start(args)
         }
       ).not_to be_nil
     end
+
+    it "should call Configuration.#get_variables" do
+      Mycmd::Configuration.should_receive(:get_variables).and_return(create_variables)
+    end
+
+    it "should call SettingsCommands#create_result_variables" do
+      Mycmd::Printer.stub(:new).and_return(double.as_null_object)
+      Mycmd::SettingsCommands.any_instance.should_receive(:create_result_variables).exactly(2).and_return([["key", "varue"], 310378496])
+    end
+
+    it "should call SettingsCommands#expected_memory_used" do
+      Mycmd::Printer.stub(:new).and_return(double.as_null_object)
+      Mycmd::SettingsCommands.any_instance.should_receive(:expected_memory_used).and_return([["key", "varue"], ["key", "value"]])
+    end
+
+    it "should call Printer.#print_title" do
+      Mycmd::Printer.should_receive(:print_title).exactly(3)
+    end
+
+    it "should create Printer object" do
+      Mycmd::Printer.should_receive(:new).exactly(3).and_return(double.as_null_object)
+    end
   end
 end