Inertia Rails Testing

Testing patterns for Inertia responses with RSpec and Minitest.

For each controller action, verify:

• Correct component → render_component('users/index')
• Expected props → have_props(users: satisfy { ... })
• No leaked data → have_no_prop(:secret)
• Flash messages → follow_redirect! then have_flash(notice: '...')
• Deferred props → have_deferred_props(:analytics)

Common mistake: Forgetting follow_redirect! after PRG — without it, you're asserting against the 302 redirect response, not the Inertia page that follows.

Setup