After Rails 3 upgrade rake db:test:prepare not working?

I have just gone through the process of upgrading a Rails 2.3.11 app that uses Tes开发者_StackOverflow中文版t Unit to Rails 3.1.rc4 and I have now set up rspec-rails 2.6.1.

I also switch the test connection in database.yml to use sqlite instead of postgres.

I can run rake db:migrate and db:test:prepare all day, but in my model tests I get "Could not find table 'model_name'".

Has anyone else ran into this?

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I did encounter this before. Try rebuilding it from scratch:

rake db:drop RAILS_ENV=test
rake db:create RAILS_ENV=test
rake db:migrate RAILS_ENV=test

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What does select * from schema_migrations show you? Verify that the migrations you expect have all actually been stored. If you know which migration failed you can use rake db:migrate:redo VERSION=<VERSION>

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