From 7212c29802e34fe7368d5b484a479c31fad49c5d Mon Sep 17 00:00:00 2001
From: Juanjo Bazan <jjbazan@gmail.com>
Date: Tue, 30 Mar 2010 23:18:44 +0200
Subject: new assertion: assert_blank
Signed-off-by: Xavier Noria <fxn@hashref.com>
---
.../lib/active_support/testing/assertions.rb | 7 ++++++
activesupport/test/test_test.rb | 28 ++++++++++++++++++++++
2 files changed, 35 insertions(+)
diff --git a/activesupport/lib/active_support/testing/assertions.rb b/activesupport/lib/active_support/testing/assertions.rb
index c529b92240..30a22fcc0e 100644
--- a/activesupport/lib/active_support/testing/assertions.rb
+++ b/activesupport/lib/active_support/testing/assertions.rb
@@ -62,6 +62,13 @@ module ActiveSupport
def assert_no_difference(expression, message = nil, &block)
assert_difference expression, 0, message, &block
end
+
+ # Test if an expression is blank. Passes if object.blank? is true.
+ #
+ # assert_blank [] # => true
+ def assert_blank(object)
+ assert object.blank?, "#{object.inspect} is not blank"
+ end
end
end
end
diff --git a/activesupport/test/test_test.rb b/activesupport/test/test_test.rb
index 1928da51ca..390670570d 100644
--- a/activesupport/test/test_test.rb
+++ b/activesupport/test/test_test.rb
@@ -86,6 +86,34 @@ class AssertDifferenceTest < ActiveSupport::TestCase
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
--
cgit v1.2.3