Fix failing tests for progress_bar changes

test/display/progress_bar_test.exs

@@ -5,16 +5,16 @@ defmodule ProgressBarTest do
 
   test "empty bar" do
     bar = ProgressBar.progress_bar(%{total: 12, current: 0})
-    assert bar == "|                              | 0 of 12"
+    assert bar == "|                              | 0 of 12 -> 0.0% complete"
   end
 
   test "puts counter on the right until half the koans are complete" do
     bar = ProgressBar.progress_bar(%{total: 12, current: 3})
-    assert bar == "|=======>                      | 3 of 12"
+    assert bar == "|=======>                      | 3 of 12 -> 25.0% complete"
   end
 
   test "full bar" do
     bar = ProgressBar.progress_bar(%{total: 12, current: 12})
-    assert bar == "|=============================>| 12 of 12"
+    assert bar == "|=============================>| 12 of 12 -> 100.0% complete"
   end
 end