spec/unit/formatter/bar_spec.rb in tty-progressbar-0.15.1 vs spec/unit/formatter/bar_spec.rb in tty-progressbar-0.16.0

@@ -11,6 +11,23 @@
       "\e[1G[===  ]",
       "\e[1G[==== ]",
       "\e[1G[=====]\n"
     ].join)
   end
+
+  it "animates colors correctly" do
+    red = "\e[31m \e[0m"
+    green = "\e[32m \e[0m"
+    progress = TTY::ProgressBar.new("[:bar]", total: 5, complete: green,
+                                    incomplete: red, output: output)
+
+    5.times { progress.advance }
+    output.rewind
+    expect(output.read).to eq([
+      "\e[1G[#{green}#{red}#{red}#{red}#{red}]",
+      "\e[1G[#{green}#{green}#{red}#{red}#{red}]",
+      "\e[1G[#{green}#{green}#{green}#{red}#{red}]",
+      "\e[1G[#{green}#{green}#{green}#{green}#{red}]",
+      "\e[1G[#{green}#{green}#{green}#{green}#{green}]\n",
+    ].join)
+  end
 end