的ActiveRecord :: NoDatabaseError：FATAL：数据库 “gvpmahesh” 不存在

Question

我试图运行rake test但我收到此错误

rake aborted! 
ActiveRecord::NoDatabaseError: FATAL: database "gvpmahesh" does not exist 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:661:in `rescue in connect' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `connect' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:242:in `initialize' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `new' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `postgresql_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:438:in `new_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:448:in `checkout_new_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in `acquire_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:349:in `block in checkout' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:348:in `checkout' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:263:in `block in connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:262:in `connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:571:in `retrieve_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_handling.rb:113:in `retrieve_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_handling.rb:87:in `connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:857:in `needs_migration?' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:396:in `load_schema_if_pending!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:411:in `block in maintain_test_schema!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:642:in `suppress_messages' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:416:in `method_missing' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:411:in `maintain_test_schema!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_help.rb:19:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `block in require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in `load_dependency' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
/home/gvpmahesh/code/rails/depot/test/test_helper.rb:3:in `<top (required)>' 
/home/gvpmahesh/code/rails/depot/test/controllers/products_controller_test.rb:1:in `require' 
/home/gvpmahesh/code/rails/depot/test/controllers/products_controller_test.rb:1:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (3 levels) in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `each' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (2 levels) in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:113:in `each' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:113:in `block in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:20:in `invoke_rake_task' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/testing.rake:8:in `block in <top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/rake-11.2.2/exe/rake:27:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>' 
PG::ConnectionBad: FATAL: database "gvpmahesh" does not exist 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `initialize' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `new' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `connect' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:242:in `initialize' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `new' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `postgresql_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:438:in `new_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:448:in `checkout_new_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in `acquire_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:349:in `block in checkout' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:348:in `checkout' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:263:in `block in connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:262:in `connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:571:in `retrieve_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_handling.rb:113:in `retrieve_connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/connection_handling.rb:87:in `connection' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:857:in `needs_migration?' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:396:in `load_schema_if_pending!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:411:in `block in maintain_test_schema!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:642:in `suppress_messages' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:416:in `method_missing' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activerecord-4.2.5.1/lib/active_record/migration.rb:411:in `maintain_test_schema!' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_help.rb:19:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `block in require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:240:in `load_dependency' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/activesupport-4.2.5.1/lib/active_support/dependencies.rb:274:in `require' 
/home/gvpmahesh/code/rails/depot/test/test_helper.rb:3:in `<top (required)>' 
/home/gvpmahesh/code/rails/depot/test/controllers/products_controller_test.rb:1:in `require' 
/home/gvpmahesh/code/rails/depot/test/controllers/products_controller_test.rb:1:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `require' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (3 levels) in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `each' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:114:in `block (2 levels) in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:113:in `each' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:113:in `block in define' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/sub_test_task.rb:20:in `invoke_rake_task' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/railties-4.2.5.1/lib/rails/test_unit/testing.rake:8:in `block in <top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/gems/rake-11.2.2/exe/rake:27:in `<top (required)>' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `eval' 
/home/gvpmahesh/.rvm/gems/ruby-2.2.3/bin/ruby_executable_hooks:15:in `<main>' 
Tasks: TOP => test:run 
(See full trace by running task with --trace) 

我有这样的database.yml中

development: &default 
    adapter: postgresql 
    encoding: unicode 
    username: <%= ENV['DB_USERNAME'] %> 
    password: <%= ENV['DB_PASSWORD'] %> 
    host: <%= ENV['DB_HOST'] %> 
    database: <%= ENV['DB_NAME'] %> 
    pool: <%= ENV['DB_POOL'] %> 

# Warning: The database defined as "test" will be erased and 
# re-generated from your development database when you run "rake". 
# Do not set this db to the same as development or production. 
test: 
    adapter: postgresql 
    encoding: unicode 
    username: <%= ENV['DB_USERNAME'] %> 
    password: <%= ENV['DB_PASSWORD'] %> 
    host: <%= ENV['DB_HOST'] %> 
    database: <%= ENV['DB_TEST'] %> 
    pool: <%= ENV['DB_POOL'] %> 

staging: 
    <<: *default 

production: 
    <<: *default 

事情是开发数据库似乎工作正常。

当我做rake db:create:all

depot_development already exists 
depot_test already exists 
depot_development already exists 
depot_development already exists 

我试图bundle exec rake db:create以及bin/rake db:create

Answer 1

要创建的rake命令中depot_test。

但是当您运行测试时，您的ENV["DB_TEST"]中有gvpmahesh。

所以一个好的方法是：将测试数据库配置设置为静态，而不是通过ENV变量。因为这不是一个敏感信息。 （GIT中检出如）

default: &default 
    adapter: postgresql 
    encoding: unicode 
    pool: 5 
    timeout: 5000 
    # You can add here your credentials 

development: 
    <<: *default 
    database: depot_development 

test: 
    <<: *default 
    database: depot_test 

production: 
    <<: *default 
    database: depot_production 

优点：如果您开发另一个系统上/测试，你不必将所有的DB ENV变量和刚上手