Used internally to customize the behavior of the memoized hash when used in a `before(:context)` hook.
@private
# File lib/rspec/core/memoized_helpers.rb, line 148 def self.fetch(key, &block) description = if key == :subject "subject" else "let declaration `#{key}`" end raise #{description} accessed in #{article} #{hook_expression} hook at: #{CallerFilter.first_non_rspec_line}`let` and `subject` declarations are not intended to be calledin #{article} #{hook_expression} hook, as they exist to define state thatis reset between each example, while #{hook_expression} exists to#{hook_intention}. end
# File lib/rspec/core/memoized_helpers.rb, line 134 def self.isolate_for_context_hook(example_group_instance) hash = self example_group_instance.instance_exec do @__memoized = hash begin yield ensure @__memoized = nil end end end
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