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convert strings to lambdas so we can use a consistent interface to the objects in the collection

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Aaron Patterson 2011-05-01 12:16:12 -07:00
parent 23eb81a3d1
commit b8ccd05524
1 changed files with 5 additions and 5 deletions
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10
activesupport/lib/active_support/testing/assertions.rb
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@ -45,17 +45,17 @@ module ActiveSupport
# post :delete, :id => ...
# end
def assert_difference(expression, difference = 1, message = nil, &block)
b = block.send(:binding)
exps = Array.wrap(expression)
before = exps.map { |e| e.respond_to?(:call) ? e.call : eval(e, b) }
exps = Array.wrap(expression).map { |e|
e.respond_to?(:call) ? e : lambda { eval(e, block.binding) }
}
before = exps.map { |e| e.call }
yield
exps.each_with_index do |e, i|
error = "#{e.inspect} didn't change by #{difference}"
error = "#{message}.\n#{error}" if message
actual = e.respond_to?(:call) ? e.call : eval(e, b)
assert_equal(before[i] + difference, actual, error)
assert_equal(before[i] + difference, e.call, error)
end
end