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-rw-r--r--activesupport/lib/active_support/testing/assertions.rb61
-rw-r--r--activesupport/lib/active_support/testing/declarative.rb21
-rw-r--r--activesupport/lib/active_support/testing/setup_and_teardown.rb28
3 files changed, 96 insertions, 14 deletions
diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb
new file mode 100644
index 0000000000..ce2f44efd6
--- /dev/null
+++ b/activesupport/lib/active_support/testing/assertions.rb
@@ -0,0 +1,61 @@
+module ActiveSupport
+ module Testing
+ module Assertions
+ # Test numeric difference between the return value of an expression as a result of what is evaluated
+ # in the yielded block.
+ #
+ # assert_difference 'Article.count' do
+ # post :create, :article => {...}
+ # end
+ #
+ # An arbitrary expression is passed in and evaluated.
+ #
+ # assert_difference 'assigns(:article).comments(:reload).size' do
+ # post :create, :comment => {...}
+ # end
+ #
+ # An arbitrary positive or negative difference can be specified. The default is +1.
+ #
+ # assert_difference 'Article.count', -1 do
+ # post :delete, :id => ...
+ # end
+ #
+ # An array of expressions can also be passed in and evaluated.
+ #
+ # assert_difference [ 'Article.count', 'Post.count' ], +2 do
+ # post :create, :article => {...}
+ # end
+ #
+ # A error message can be specified.
+ #
+ # assert_difference 'Article.count', -1, "An Article should be destroyed" do
+ # post :delete, :id => ...
+ # end
+ def assert_difference(expressions, difference = 1, message = nil, &block)
+ expression_evaluations = Array(expressions).collect{ |expression| lambda { eval(expression, block.send(:binding)) } }
+
+ original_values = expression_evaluations.inject([]) { |memo, expression| memo << expression.call }
+ yield
+ expression_evaluations.each_with_index do |expression, i|
+ assert_equal original_values[i] + difference, expression.call, message
+ end
+ 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
+ # end
+ #
+ # A error message can be specified.
+ #
+ # assert_no_difference 'Article.count', "An Article should not be destroyed" do
+ # post :create, :article => invalid_attributes
+ # end
+ def assert_no_difference(expressions, message = nil, &block)
+ assert_difference expressions, 0, message, &block
+ end
+ end
+ end
+end
diff --git a/activesupport/lib/active_support/testing/declarative.rb b/activesupport/lib/active_support/testing/declarative.rb
new file mode 100644
index 0000000000..cb6a5844eb
--- /dev/null
+++ b/activesupport/lib/active_support/testing/declarative.rb
@@ -0,0 +1,21 @@
+module ActiveSupport
+ module Testing
+ module Declarative
+ # test "verify something" do
+ # ...
+ # end
+ def test(name, &block)
+ test_name = "test_#{name.gsub(/\s+/,'_')}".to_sym
+ defined = instance_method(test_name) rescue false
+ raise "#{test_name} is already defined in #{self}" if defined
+ if block_given?
+ define_method(test_name, &block)
+ else
+ define_method(test_name) do
+ flunk "No implementation provided for #{name}"
+ end
+ end
+ end
+ end
+ end
+end
diff --git a/activesupport/lib/active_support/testing/setup_and_teardown.rb b/activesupport/lib/active_support/testing/setup_and_teardown.rb
index a514b61fea..c70e149c16 100644
--- a/activesupport/lib/active_support/testing/setup_and_teardown.rb
+++ b/activesupport/lib/active_support/testing/setup_and_teardown.rb
@@ -14,9 +14,8 @@ module ActiveSupport
include ActiveSupport::Callbacks
define_callbacks :setup, :teardown
- if defined?(::Mini)
- undef_method :run
- alias_method :run, :run_with_callbacks_and_miniunit
+ if defined?(::MiniTest)
+ include ForMiniTest
else
begin
require 'mocha'
@@ -30,22 +29,23 @@ module ActiveSupport
end
end
- def run_with_callbacks_and_miniunit(runner)
- result = '.'
- begin
- run_callbacks :setup
- result = super
- rescue Exception => e
- result = runner.puke(self.class, self.name, e)
- ensure
+ module ForMiniTest
+ def run(runner)
+ result = '.'
begin
- teardown
- run_callbacks :teardown, :enumerator => :reverse_each
+ run_callbacks :setup
+ result = super
rescue Exception => e
result = runner.puke(self.class, self.name, e)
+ ensure
+ begin
+ run_callbacks :teardown, :enumerator => :reverse_each
+ rescue Exception => e
+ result = runner.puke(self.class, self.name, e)
+ end
end
+ result
end
- result
end
# This redefinition is unfortunate but test/unit shows us no alternative.