Rails：旧的，不存在的数据库表导致测试错误
我一直试图在我最近负责的Rails应用程序中运行一个“真实”unit testing，mac_test.rb。 它看起来像这样：
require 'test_helper' class MacTest < ActiveSupport::TestCase # Replace this with your real tests. test "the truth" do assert true end end 我运行rake db:test:prepare我正在尝试使用ruby -I test test/unit/mac_test.rb运行测试。
但是，我得到以下缩写错误输出：
Loaded suite test/unit/mac_test Started EEEEEEEEEEEEEEE Finished in 0.377261 seconds. 1) Error: test_datas(ActionController::IntegrationTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: no such table: vendors: DELETE FROM "vendors" WHERE 1=1 2) Error: testjigs(ActionController::IntegrationTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: no such table: vendors: DELETE FROM "vendors" WHERE 1=1 3) Error: test_datas(ActionController::TestCase): ActiveRecord::StatementInvalid: SQLite3::SQLException: no such table: vendors: DELETE FROM "vendors" WHERE 1=1 15 tests, 0 assertions, 0 failures, 15 errors
所有15个错误都与前三个类似 – 他们抱怨缺少供应商表。 供应商显然曾经存在 – 有一些剩余的文件，比如vendor_helper，在routes.rb文件中也有一个map.resources :vendor 。 我删除了旧的供应商文件并删除了map.resources：vendor line。
所以没有模型，视图，控制器，测试，数据库表或任何命名供应商/供应商的东西。 使用TextMate搜索“供应商”的项目（不区分大小写），只有一个“供应商”不在注释，日志文件，README或boot.rb文件中，这是在Capfile中。 （我认为不应该影响测试？）
我已经尝试使用rake db:reset来查看它是否是一些奇怪的数据库事物，但它仍然在爆炸。
如果我尝试使用rake test:units --trace ，（只是为了得到跟踪，我不知道如何通过单独测试得到跟踪）我得到缩写输出：
** Invoke test:units (first_time) ** Invoke db:test:prepare (first_time) ** Invoke db:abort_if_pending_migrations (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:abort_if_pending_migrations ** Execute db:test:prepare ** Invoke db:test:load (first_time) ** Invoke db:test:purge (first_time) ** Invoke environment ** Execute db:test:purge ** Execute db:test:load ** Invoke db:schema:load (first_time) ** Invoke environment ** Execute db:schema:load ** Execute test:units /usr/local/bin/ruby -I"lib:test" "/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/unit/auth_code_test.rb" "test/unit/cal_data_test.rb" "test/unit/calibration_test.rb" "test/unit/helpers/auth_codes_helper_test.rb" "test/unit/helpers/jn_macs_helper_test.rb" "test/unit/jn_mac_test.rb" "test/unit/log_entry_test.rb" "test/unit/mac_test.rb" "test/unit/option_test.rb" "test/unit/q_test_test.rb" "test/unit/serial_test.rb" "test/unit/source_test.rb" "test/unit/test_data_test.rb" "test/unit/testjig_test.rb" Loaded suite /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader Started EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE Finished in 1.06271 seconds. 1) Error: test_datas(ActionController::IntegrationTest): ActiveRecord::StatementInvalid: SQLite3::SQLException: no such table: vendors: DELETE FROM "vendors" WHERE 1=1 52 tests, 0 assertions, 0 failures, 52 errors rake aborted! Command failed with status (1): [/usr/local/bin/ruby -I"lib:test" "/usr/loc...] /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:995:in `sh' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1010:in `call' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1010:in `sh' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1094:in `sh' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1029:in `ruby' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1094:in `ruby' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/testtask.rb:117:in `define' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1112:in `verbose' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/testtask.rb:102:in `define' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain' /usr/local/lib/ruby/1.8/monitor.rb:242:in `synchronize' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run' /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31 /usr/local/bin/rake:19:in `load' /usr/local/bin/rake:19
我不知道如何让它不爆炸。 任何人都可以帮我找到让Rails意识到不再有任何“供应商”的方法吗？
编辑：我正在使用Rails 2.3.2和ruby 1.8.7（2009-06-12 patchlevel 174）[i686-darwin9.7.0]
检查测试文件夹中是否有名为vendors.yml的fixture文件。 如果它存在并且您没有供应商表，那么您将获得这些错误，因为默认情况下，Rails尝试使用该文件中的数据填充供应商表。
您的{RAILS_ROOT} /db/schema.rb文件可能仍然包含有关先前供应商表的一些信息。 该文件中的信息用于构建测试环境。 如果它确实包含vendor表信息，则可以运行rake db：schema：dump来刷新该文件，然后再次尝试测试。