'case' statement without 'else' block

Reports case statements without else blocks. An else block should always be present to specify the default result if no match is found.

Example:

# Bad practice
case status
when :active
  perform_action
end

A quick-fix is available to insert an else block. After the quick-fix is applied, the result looks like this:

# Good practice
case status
when :active
  perform_action
else
  # type code here
end

Inspired by 'Roodi'

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

RubyCaseWithoutElseBlockInspection

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Ruby | Control flow issues

Inspection ID: RubyCaseWithoutElseBlockInspection

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection RubyCaseWithoutElseBlockInspection

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

RubyMine 2025.2

Inspection Details
By default bundled with:	Qodana for Ruby 2025.2, RubyMine 2025.2,

Last modified: 18 September 2025