すべてのレールのテストは

Question

「文字列にゼロのない暗黙の型変換」エラーでの作業に使用

私のテストに失敗しないが、今、彼らはすべて、次のエラーとスタックトレースで失敗：

TypeError: no implicit conversion of nil into String 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql/utils.rb:24:in `quote_ident' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql/utils.rb:24:in `quoted' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql/quoting.rb:31:in `quote_table_name' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:738:in `column_definitions' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql/schema_statements.rb:186:in `columns' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:750:in `column_names' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:742:in `timestamp_column_names' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:627:in `block in table_rows' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:621:in `each' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:621:in `map' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:621:in `table_rows' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:526:in `block (3 levels) in create_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:524:in `each' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:524:in `block (2 levels) in create_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:523:in `block in create_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql/referential_integrity.rb:17:in `disable_referential_integrity' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:508:in `create_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:979:in `load_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:941:in `setup_fixtures' 
    vendor/bundle/gems/activerecord-4.2.5.1/lib/active_record/fixtures.rb:826:in `before_setup' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:105:in `block (3 levels) in run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:204:in `capture_exceptions' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:104:in `block (2 levels) in run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:255:in `time_it' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:103:in `block in run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:348:in `on_signal' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:275:in `with_info_handler' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest/test.rb:102:in `run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:799:in `run_one_method' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:322:in `run_one_method' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:310:in `block (2 levels) in run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:309:in `each' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:309:in `block in run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:348:in `on_signal' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:335:in `with_info_handler' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:308:in `run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:158:in `block in __run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:158:in `map' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:158:in `__run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:135:in `run' 
    vendor/bundle/gems/minitest-5.9.1/lib/minitest.rb:62:in `block in autorun' 

私が確認するためにbe rake db:drop && be rake db:create && be rake db:migrate && be rake db:schema:dump && be rake db:test:prepareを走りました私のデータベースはきれいです（ここでbeはbundle execのエイリアスです）

テストを正しく再実行するにはどうしたらいいですか？

編集：私はあなたがそれをdownvotingしている場合、私の質問を改善する方法を教えてください。

Answer 1

私は私の問題を解決しました。私は抽象モデルを追加していた：私の備品test/fixtures/abstract_model.ymlで自動的に生成されたファイルを除去することにより

class AbstractModel < ActiveRecord::Base 
    self.abstract_class = true 

    # some methods ... 
end 

を、私のテストが再び成功しました。