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require "cases/helper"
require "rack"
module ActiveRecord
module ConnectionAdapters
class ConnectionManagementTest < ActiveRecord::TestCase
class App
attr_reader :calls
def initialize
@calls = []
end
def call(env)
@calls << env
[200, {}, ['hi mom']]
end
end
def setup
@env = {}
@app = App.new
@management = ConnectionManagement.new(@app)
# make sure we have an active connection
assert ActiveRecord::Base.connection
assert ActiveRecord::Base.connection_handler.active_connections?
end
def test_connection_pool_per_pid
return skip('must support fork') unless Process.respond_to?(:fork)
object_id = ActiveRecord::Base.connection.object_id
rd, wr = IO.pipe
pid = fork {
rd.close
wr.write Marshal.dump ActiveRecord::Base.connection.object_id
wr.close
exit!
}
wr.close
Process.waitpid pid
assert_not_equal object_id, Marshal.load(rd.read)
rd.close
end
def test_app_delegation
manager = ConnectionManagement.new(@app)
manager.call @env
assert_equal [@env], @app.calls
end
def test_connections_are_active_after_call
@management.call(@env)
assert ActiveRecord::Base.connection_handler.active_connections?
end
def test_body_responds_to_each
_, _, body = @management.call(@env)
bits = []
body.each { |bit| bits << bit }
assert_equal ['hi mom'], bits
end
def test_connections_are_cleared_after_body_close
_, _, body = @management.call(@env)
body.close
assert !ActiveRecord::Base.connection_handler.active_connections?
end
def test_active_connections_are_not_cleared_on_body_close_during_test
@env['rack.test'] = true
_, _, body = @management.call(@env)
body.close
assert ActiveRecord::Base.connection_handler.active_connections?
end
def test_connections_closed_if_exception
app = Class.new(App) { def call(env); raise NotImplementedError; end }.new
explosive = ConnectionManagement.new(app)
assert_raises(NotImplementedError) { explosive.call(@env) }
assert !ActiveRecord::Base.connection_handler.active_connections?
end
def test_connections_not_closed_if_exception_and_test
@env['rack.test'] = true
app = Class.new(App) { def call(env); raise; end }.new
explosive = ConnectionManagement.new(app)
assert_raises(RuntimeError) { explosive.call(@env) }
assert ActiveRecord::Base.connection_handler.active_connections?
end
test "doesn't clear active connections when running in a test case" do
@env['rack.test'] = true
@management.call(@env)
assert ActiveRecord::Base.connection_handler.active_connections?
end
test "proxy is polite to it's body and responds to it" do
body = Class.new(String) { def to_path; "/path"; end }.new
app = lambda { |_| [200, {}, body] }
response_body = ConnectionManagement.new(app).call(@env)[2]
assert response_body.respond_to?(:to_path)
assert_equal response_body.to_path, "/path"
end
end
end
end
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