115 lines
3.4 KiB
Ruby
115 lines
3.4 KiB
Ruby
# frozen_string_literal: true
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require "cases/helper"
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require "rack"
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module ActiveRecord
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module ConnectionAdapters
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class ConnectionManagementTest < ActiveRecord::TestCase
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self.use_transactional_tests = false
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class App
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attr_reader :calls
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def initialize
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@calls = []
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end
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def call(env)
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@calls << env
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[200, {}, ["hi mom"]]
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end
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end
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def setup
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@env = {}
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@app = App.new
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@management = middleware(@app)
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# make sure we have an active connection
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assert ActiveRecord::Base.connection
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assert ActiveRecord::Base.connection_handler.active_connections?
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end
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def test_app_delegation
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manager = middleware(@app)
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manager.call @env
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assert_equal [@env], @app.calls
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end
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def test_body_responds_to_each
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_, _, body = @management.call(@env)
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bits = []
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body.each { |bit| bits << bit }
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assert_equal ["hi mom"], bits
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end
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def test_connections_are_cleared_after_body_close
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_, _, body = @management.call(@env)
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body.close
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assert !ActiveRecord::Base.connection_handler.active_connections?
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end
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def test_active_connections_are_not_cleared_on_body_close_during_transaction
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ActiveRecord::Base.transaction do
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_, _, body = @management.call(@env)
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body.close
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assert ActiveRecord::Base.connection_handler.active_connections?
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end
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end
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def test_connections_closed_if_exception
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app = Class.new(App) { def call(env); raise NotImplementedError; end }.new
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explosive = middleware(app)
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assert_raises(NotImplementedError) { explosive.call(@env) }
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assert !ActiveRecord::Base.connection_handler.active_connections?
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end
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def test_connections_not_closed_if_exception_inside_transaction
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ActiveRecord::Base.transaction do
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app = Class.new(App) { def call(env); raise RuntimeError; end }.new
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explosive = middleware(app)
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assert_raises(RuntimeError) { explosive.call(@env) }
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assert ActiveRecord::Base.connection_handler.active_connections?
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end
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end
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test "doesn't clear active connections when running in a test case" do
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executor.wrap do
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@management.call(@env)
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assert ActiveRecord::Base.connection_handler.active_connections?
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end
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end
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test "proxy is polite to its body and responds to it" do
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body = Class.new(String) { def to_path; "/path"; end }.new
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app = lambda { |_| [200, {}, body] }
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response_body = middleware(app).call(@env)[2]
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assert response_body.respond_to?(:to_path)
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assert_equal "/path", response_body.to_path
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end
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test "doesn't mutate the original response" do
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original_response = [200, {}, "hi"]
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app = lambda { |_| original_response }
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middleware(app).call(@env)[2]
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assert_equal "hi", original_response.last
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end
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private
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def executor
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@executor ||= Class.new(ActiveSupport::Executor).tap do |exe|
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ActiveRecord::QueryCache.install_executor_hooks(exe)
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end
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end
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def middleware(app)
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lambda do |env|
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a, b, c = executor.wrap { app.call(env) }
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[a, b, Rack::BodyProxy.new(c) {}]
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end
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end
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end
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end
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end
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