Fix and refactor tests for ::Button::BasicImage

spec/helpers/application_helper/buttons/basic_image_spec.rb

@@ -1,27 +1,20 @@
 describe ApplicationHelper::Button::BasicImage do
   describe '#visible?' do
+    before do
+      @view_context = setup_view_context_with_sandbox({:trees => {:vandt_tree => {:active_node => "xx-arch"}},
+                                                       :active_tree => :vandt_tree})
+    end
     context "in list of archived VMs" do
-      before do
-        allow(ApplicationHelper).to receive(:get_record_cls).and_return(nil)
-        @sb = {:trees => {:vandt_tree => {:active_node => "xx-arch"}}}
-      end
-
       it "will be skipped" do
-        view_context = setup_view_context_with_sandbox({})
-        button = described_class.new(view_context, {}, {'sb' => @sb}, {})
+        button = described_class.new(@view_context, {}, {}, {})
         expect(button.visible?).to be_falsey
       end
     end
 
     context "in list of orphaned VMs" do
-      before do
-        allow(ApplicationHelper).to receive(:get_record_cls).and_return(nil)
-        @sb = {:trees => {:vandt_tree => {:active_node => "xx-arch"}}}
-      end
-
       it "will be skipped" do
-        view_context = setup_view_context_with_sandbox({})
-        button = described_class.new(view_context, {}, {'sb' => @sb}, {})
+        @view_context.x_node = "xx-orph"
+        button = described_class.new(@view_context, {}, {}, {})
         expect(button.visible?).to be_falsey
       end
     end