# Problem
The `default-case` rule is not recognizing the `// no default` comment, which is intended to suppress the warning.

# Attempts
1. I wrote a standard test with a valid case using the `// no default` comment, but it failed.
2. I added the `commentPattern` option to the test case, but the test still failed.
3. I restructured the test to use a separate `RuleTester` for the option, but the issue persisted.

# Possible Solution
The problem may be related to how ESLint v7 handles comments in switch statements or a configuration issue within the test setup. It might be necessary to investigate the ESLint documentation for this version to find a workaround.