Add tests for flash message helpers

test/helpers/application_helper_test.rb

@@ -0,0 +1,13 @@
+require 'test_helper'
+
+class ApplicationHelperTest < ActionView::TestCase
+  test "bootstrap classes for flash should return correct values" do
+    assert_equal "alert-danger", bootstrap_class_for(:error)
+    assert_equal "alert-success", bootstrap_class_for(:success)
+  end
+
+  test "bootstrap flash messages should work" do
+    flash[:error] = "Error"
+    assert_equal "<div class=\"alert alert-danger alert-dismissible\" role=\"alert\"><button class=\"close\" data-dismiss=\"alert\"><span aria-hidden=\"true\">&times;</span><span class=\"sr-only\">Close</span></button>Error</div>", flash_messages
+  end
+end