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require 'abstract_unit'
require 'active_support/core_ext/kernel/reporting'
class AssertDifferenceTest < ActiveSupport::TestCase
def setup
@object = Class.new do
attr_accessor :num
def increment
self.num += 1
end
def decrement
self.num -= 1
end
end.new
@object.num = 0
end
if lambda { }.respond_to?(:binding)
def test_assert_no_difference
assert_no_difference '@object.num' do
# ...
end
end
def test_assert_difference
assert_difference '@object.num', +1 do
@object.increment
end
end
def test_assert_difference_with_implicit_difference
assert_difference '@object.num' do
@object.increment
end
end
def test_arbitrary_expression
assert_difference '@object.num + 1', +2 do
@object.increment
@object.increment
end
end
def test_negative_differences
assert_difference '@object.num', -1 do
@object.decrement
end
end
def test_expression_is_evaluated_in_the_appropriate_scope
local_scope = 'foo'
silence_warnings do
assert_difference('local_scope; @object.num') { @object.increment }
end
end
def test_array_of_expressions
assert_difference [ '@object.num', '@object.num + 1' ], +1 do
@object.increment
end
end
def test_array_of_expressions_identify_failure
assert_difference ['@object.num', '1 + 1'] do
@object.increment
end
fail 'should not get to here'
rescue Exception => e
assert_match(/didn't change by/, e.message)
assert_match(/expected but was/, e.message)
end
def test_array_of_expressions_identify_failure_when_message_provided
assert_difference ['@object.num', '1 + 1'], 1, 'something went wrong' do
@object.increment
end
fail 'should not get to here'
rescue Exception => e
assert_match(/something went wrong/, e.message)
assert_match(/didn't change by/, e.message)
assert_match(/expected but was/, e.message)
end
else
def default_test; end
end
end
class EmptyTrue
def empty?() true; end
end
class EmptyFalse
def empty?() false; end
end
class AssertBlankTest < ActiveSupport::TestCase
BLANK = [ EmptyTrue.new, nil, false, '', ' ', " \n\t \r ", [], {} ]
NOT_BLANK = [ EmptyFalse.new, Object.new, true, 0, 1, 'j', [nil], { nil => 0 } ]
def test_assert_blank_true
BLANK.each { |v| assert_blank v }
end
def test_assert_blank_false
NOT_BLANK.each { |v|
begin
assert_blank v
fail 'should not get to here'
rescue Exception => e
assert_match(/is not blank/, e.message)
end
}
end
end
# These should always pass
if ActiveSupport::Testing.const_defined?(:Default)
class NotTestingThingsTest < Test::Unit::TestCase
include ActiveSupport::Testing::Default
end
end
class AlsoDoingNothingTest < ActiveSupport::TestCase
end
# Setup and teardown callbacks.
class SetupAndTeardownTest < ActiveSupport::TestCase
setup :reset_callback_record, :foo
teardown :foo, :sentinel, :foo
def test_inherited_setup_callbacks
assert_equal [:reset_callback_record, :foo], self.class._setup_callbacks.map(&:raw_filter)
assert_equal [:foo], @called_back
assert_equal [:foo, :sentinel, :foo], self.class._teardown_callbacks.map(&:raw_filter)
end
def setup
end
def teardown
end
protected
def reset_callback_record
@called_back = []
end
def foo
@called_back << :foo
end
def sentinel
assert_equal [:foo, :foo], @called_back
end
end
class SubclassSetupAndTeardownTest < SetupAndTeardownTest
setup :bar
teardown :bar
def test_inherited_setup_callbacks
assert_equal [:reset_callback_record, :foo, :bar], self.class._setup_callbacks.map(&:raw_filter)
assert_equal [:foo, :bar], @called_back
assert_equal [:foo, :sentinel, :foo, :bar], self.class._teardown_callbacks.map(&:raw_filter)
end
protected
def bar
@called_back << :bar
end
def sentinel
assert_equal [:foo, :bar, :bar, :foo], @called_back
end
end
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