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Fix wrong variable reports in it_is_asserted_by #3

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Fix wrong variable reports in it_is_asserted_by #3

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13 changes: 11 additions & 2 deletions lib/rspec/power_assert.rb
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
require "rspec/power_assert/version"
require "rspec/core"
require "power_assert"
require "securerandom"

module PowerAssert
class << self
Expand Down Expand Up @@ -52,9 +53,17 @@ def is_asserted_by(&blk)

private

def change_context(&blk)
self_name = :"_#{SecureRandom.hex}"
blk_name = :"_#{SecureRandom.hex}"
bind = blk.binding
bind.local_variable_set(self_name, self)
bind.local_variable_set(blk_name, blk)
bind.eval("-> { #{self_name}.instance_exec(&#{blk_name}) }")
end

def evaluate_example(method_name, &blk)
# hack for context changing
pr = -> { self.instance_exec(&blk) }
pr = change_context(&blk)

result, msg = ::PowerAssert.rspec_start(pr, assertion_method: method_name) do |tp|
[tp.yield, tp.message_proc.call]
Expand Down