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Contents
# frozen_string_literal: true
module RuboCop
module RSpec
# Wrapper for RSpec example groups
class ExampleGroup < Concept
# @!method scope_change?(node)
#
# Detect if the node is an example group or shared example
#
# Selectors which indicate that we should stop searching
#
def_node_matcher :scope_change?, <<~PATTERN
(block {
(send #rspec? {#SharedGroups.all #ExampleGroups.all} ...)
(send nil? #Includes.all ...)
} ...)
PATTERN
def lets
find_all_in_scope(node, :let?)
end
def subjects
find_all_in_scope(node, :subject?)
end
def examples
find_all_in_scope(node, :example?).map do |node|
Example.new(node)
end
end
def hooks
find_all_in_scope(node, :hook?).map do |node|
Hook.new(node)
end
end
private
# Recursively search for predicate within the current scope
#
# Searches node and halts when a scope change is detected
#
# @param node [RuboCop::AST::Node] node to recursively search
# @param predicate [Symbol] method to call with node as argument
#
# @return [Array<RuboCop::AST::Node>] discovered nodes
def find_all_in_scope(node, predicate)
node.each_child_node.flat_map do |child|
find_all(child, predicate)
end
end
def find_all(node, predicate)
if public_send(predicate, node)
[node]
elsif scope_change?(node) || example?(node)
[]
else
find_all_in_scope(node, predicate)
end
end
end
end
end
Version data entries
39 entries across 39 versions & 7 rubygems