问题描述
我遇到了一个奇怪的情况。目前，我正在对 rails 进行升级，并将其从 4.2 升级到 6.0，经过大量更改后进展顺利。现在，当我运行请求 Rspec 时，出现错误 MysqL2::Error: MysqL 客户端未连接。
注意 - 我已经在使用 DatabaseCleaner 并且 use_transactional_fixtures 是假的
导轨 (6.0.3.7 rspec-rails (5.0.1) 水豚 (3.35.3) database_cleaner (2.0.1) MysqL2 (0.5.3)
回溯
Got 0 failures and 2 other errors:
9.1) Failure/Error: category = Category.where(name: name).first_or_create
MysqL2::Error:
MysqL client is not connected
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:44:in `block in method_missing'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:63:in `block (2 levels) in with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:62:in `handle_interrupt'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:62:in `block in with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:59:in `handle_interrupt'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:59:in `with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:14:in `with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:43:in `method_missing'
# ./spec/requests/videos_spec.rb:12:in `block (3 levels) in <top (required)>'
# ./spec/requests/videos_spec.rb:11:in `each'
# ./spec/requests/videos_spec.rb:11:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:124:in `block in run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `loop'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
# ./spec/rails_helper.rb:99:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/webmock-3.13.0/lib/webmock/rspec.rb:37:in `block (2 levels) in <top (required)>'
# ./spec/support/puffing_billy.rb:107:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:124:in `block in run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `loop'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:37:in `block (2 levels) in setup'
9.2) Failure/Error: DatabaseCleaner.clean
ActiveRecord::StatementInvalid:
MysqL2::Error: MysqL client is not connected
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/MysqL2-0.5.3/lib/MysqL2/client.rb:131:in `_query'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/MysqL2-0.5.3/lib/MysqL2/client.rb:131:in `block in query'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/MysqL2-0.5.3/lib/MysqL2/client.rb:130:in `handle_interrupt'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/MysqL2-0.5.3/lib/MysqL2/client.rb:130:in `query'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:44:in `block in method_missing'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:63:in `block (2 levels) in with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:62:in `handle_interrupt'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:62:in `block in with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:59:in `handle_interrupt'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool.rb:59:in `with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:14:in `with'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/connection_pool-2.2.5/lib/connection_pool/wrapper.rb:43:in `method_missing'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/database_cleaner-active_record-2.0.1/lib/database_cleaner/active_record/truncation.rb:21:in `clean'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/database_cleaner-core-2.0.1/lib/database_cleaner/cleaners.rb:28:in `block in clean'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/database_cleaner-core-2.0.1/lib/database_cleaner/cleaners.rb:28:in `each'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/database_cleaner-core-2.0.1/lib/database_cleaner/cleaners.rb:28:in `clean'
# ./spec/support/database_cleaner.rb:52:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:124:in `block in run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `loop'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
# ./spec/rails_helper.rb:99:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/webmock-3.13.0/lib/webmock/rspec.rb:37:in `block (2 levels) in <top (required)>'
# ./spec/support/puffing_billy.rb:107:in `block (2 levels) in <top (required)>'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:124:in `block in run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `loop'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:110:in `run'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec_ext/rspec_ext.rb:12:in `run_with_retry'
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/rspec-retry-0.6.2/lib/rspec/retry.rb:37:in `block (2 levels) in setup'
# ------------------
# --- Caused by: ---
# MysqL2::Error:
# MysqL client is not connected
# /Users/sudarshandhokale/.rvm/gems/ruby-2.7.3/gems/MysqL2-0.5.3/lib/MysqL2/client.rb:131:in `_query'
解决方法
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