mirrors
/
rails
mirror of https://github.com/rails/rails
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

make assert_difference error message not suck

This commit is contained in:
Aaron Patterson 2011-08-03 16:55:00 -07:00
parent cc9ed15785
commit 171881f610
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
activesupport/lib/active_support/testing/assertions.rb
View File

@ -46,16 +46,17 @@ module ActiveSupport
# end
def assert_difference(expression, difference = 1, message = nil, &block)
exps = Array.wrap(expression).map { |e|
e.respond_to?(:call) ? e : lambda { eval(e, block.binding) }
callee = e.respond_to?(:call) ? e : lambda { eval(e, block.binding) }
[e, callee]
}
before = exps.map { |e| e.call }
before = exps.map { |_, block| block.call }
yield
exps.each_with_index do |e, i|
error = "#{e.inspect} didn't change by #{difference}"
exps.each_with_index do |(code, block), i|
error = "#{code.inspect} didn't change by #{difference}"
error = "#{message}.\n#{error}" if message
assert_equal(before[i] + difference, e.call, error)
assert_equal(before[i] + difference, block.call, error)
end
end