Is there a way to test if a database index exists with RSpec?
I'm using friendly_id gem and often I forget to create the database index for slug field.
So, I would like to include this in my RSpec tests.
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Yes, check out shoulda gemAlexander Kireyev– Alexander Kireyev2014-09-12 12:56:45 +00:00Commented Sep 12, 2014 at 12:56
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I'm already using shoulda-matchers. But did not find the matcher that I need.William Weckl– William Weckl2014-09-12 12:59:23 +00:00Commented Sep 12, 2014 at 12:59
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1 Answer
You can use index_exists? check unique by options unique: true:
=> ActiveRecord::Migration.index_exists?(:users, :user_id, unique: true)
=> -- index_exists?(:users, :user_id)
=> -> 0.0559s
=> false
or:
=> ActiveRecord::Base.connection.index_exists?(:users, :user_id)
=> false
=> ActiveRecord::Base.connection.indexes(:users).map(&:columns)
=> [["birthday"],
=> ["confirmation_token"],
=> ["email"],
=> ["facebook_id"],
=> ["reset_password_token"]]
with unique:
=>ActiveRecord::Base.connection.indexes(:users).map { |x| Hash[:unique, x.unique, :column, x.columns ] }
=> [{:unique=>false, :column=>["birthday"]},
=> {:unique=>true, :column=>["confirmation_token"]},
=> {:unique=>true, :column=>["email"]},
=> {:unique=>true, :column=>["facebook_id"]},
=> {:unique=>true, :column=>["reset_password_token"]}]
1 Comment
victorhazbun
Will be best to test the query that is supposed to use the index.
