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module FactoryBurgers
# A SequenceCheater is able to take the block associated with a factory's
# attribute and discover if it uses a sequence (specifically, if it calls
# `generate`). It does this by evaluting the block in its own context, where
# the `generate` method has been defined to save the name it was called with.
#
# For example, in the following factory:
#
# FactoryBot.define do
# factory :foo do
# bar { generate :baz }
# end
# end
#
# We can discover the `bar` attribute of the factory, and throgh some slightly
# dangerous non-public access (it's Ruby, after all) we can get the block
# defined as `{ generate :baz }`. We then call that block on a SequenceCheater,
# which simply records that `generate` was called with the name `:baz`.
class SequenceCheater < BasicObject
attr_reader :sequence_names
def initialize
@sequence_names = []
end
def generate(name = nil, *_args, &_blk)
@sequence_names |= [name] unless name.nil?
end
# We explicitly want to swallow and do nothing on method_missing;
# We only want to detect occurences of `generate`.
def method_missing(_name, *_args)
# do nothing, do not fail
end
private
# While a no-op, we define it for linters
def respond_to_missing?(*_args)
false
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems