diff options
Diffstat (limited to 'activesupport/lib/active_support/testing/assertions.rb')
| -rw-r--r-- | activesupport/lib/active_support/testing/assertions.rb | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb index 76a591bc3b..ae8c15d8bf 100644 --- a/activesupport/lib/active_support/testing/assertions.rb +++ b/activesupport/lib/active_support/testing/assertions.rb @@ -9,7 +9,7 @@ module ActiveSupport # # assert_not nil # => true # assert_not false # => true - # assert_not 'foo' # => 'foo' is not nil or false + # assert_not 'foo' # => Expected "foo" to be nil or false # # An error message can be specified. # @@ -23,42 +23,42 @@ module ActiveSupport # result of what is evaluated in the yielded block. # # assert_difference 'Article.count' do - # post :create, article: {...} + # post :create, params: { article: {...} } # end # # An arbitrary expression is passed in and evaluated. # - # assert_difference 'assigns(:article).comments(:reload).size' do - # post :create, comment: {...} + # assert_difference 'Article.last.comments(:reload).size' do + # post :create, params: { comment: {...} } # end # # An arbitrary positive or negative difference can be specified. # The default is <tt>1</tt>. # # assert_difference 'Article.count', -1 do - # post :delete, id: ... + # post :delete, params: { id: ... } # end # # An array of expressions can also be passed in and evaluated. # # assert_difference [ 'Article.count', 'Post.count' ], 2 do - # post :create, article: {...} + # post :create, params: { article: {...} } # end # # A lambda or a list of lambdas can be passed in and evaluated: # # assert_difference ->{ Article.count }, 2 do - # post :create, article: {...} + # post :create, params: { article: {...} } # end # # assert_difference [->{ Article.count }, ->{ Post.count }], 2 do - # post :create, article: {...} + # post :create, params: { article: {...} } # end # # An error message can be specified. # # assert_difference 'Article.count', -1, 'An Article should be destroyed' do - # post :delete, id: ... + # post :delete, params: { id: ... } # end def assert_difference(expression, difference = 1, message = nil, &block) expressions = Array(expression) @@ -66,28 +66,30 @@ module ActiveSupport exps = expressions.map { |e| e.respond_to?(:call) ? e : lambda { eval(e, block.binding) } } - before = exps.map { |e| e.call } + before = exps.map(&:call) - yield + retval = yield expressions.zip(exps).each_with_index do |(code, e), i| error = "#{code.inspect} didn't change by #{difference}" error = "#{message}.\n#{error}" if message assert_equal(before[i] + difference, e.call, error) end + + retval end # Assertion that the numeric result of evaluating an expression is not # changed before and after invoking the passed in block. # # assert_no_difference 'Article.count' do - # post :create, article: invalid_attributes + # post :create, params: { article: invalid_attributes } # end # # An error message can be specified. # # assert_no_difference 'Article.count', 'An Article should not be created' do - # post :create, article: invalid_attributes + # post :create, params: { article: invalid_attributes } # end def assert_no_difference(expression, message = nil, &block) assert_difference expression, 0, message, &block |