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Evaluate expression for assert_difference in the scope of the block 

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6701 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
This commit is contained in:
Marcel Molina 2007-05-08 06:27:10 +00:00
parent 388f504f6d
commit 2b6ad48ea3
2 changed files with 8 additions and 1 deletions
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2
activesupport/lib/active_support/core_ext/test/difference.rb
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@ -20,7 +20,7 @@ module Test #:nodoc:
# post :delete, :id => ...
# end
def assert_difference(expression, difference = 1, &block)
expression_evaluation = lambda { eval(expression) }
expression_evaluation = lambda { eval(expression, block.binding) }
original_value = expression_evaluation.call
yield
assert_equal original_value + difference, expression_evaluation.call

7
activesupport/test/test_test.rb
View File

@ -46,4 +46,11 @@ class AssertDifferenceTest < Test::Unit::TestCase
@object.decrement
end
end
def test_expression_is_evaluated_in_the_appropriate_scope
local_scope = 'foo'
assert_difference 'local_scope; @object.num' do
@object.increment
end
end
end