Module: ActionDispatch::Assertions::DomAssertions

Included in:
ActionDispatch::Assertions
Defined in:
actionpack/lib/action_dispatch/testing/assertions/dom.rb

Instance Method Summary collapse

Instance Method Details

#assert_dom_equal(expected, actual, message = "") ⇒ Object

Test two HTML strings for equivalency (e.g., identical up to reordering of attributes)

Examples

# assert that the referenced method generates the appropriate HTML string
assert_dom_equal '<a href="http://www.example.com">Apples</a>', link_to("Apples", "http://www.example.com")

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# File 'actionpack/lib/action_dispatch/testing/assertions/dom.rb', line 13

def assert_dom_equal(expected, actual, message = "")
  expected_dom = HTML::Document.new(expected).root
  actual_dom   = HTML::Document.new(actual).root
  full_message = build_message(message, "<?> expected to be == to\n<?>.", expected_dom.to_s, actual_dom.to_s)

  assert_block(full_message) { expected_dom == actual_dom }
end

#assert_dom_not_equal(expected, actual, message = "") ⇒ Object

The negated form of assert_dom_equivalent.

Examples

# assert that the referenced method does not generate the specified HTML string
assert_dom_not_equal '<a href="http://www.example.com">Apples</a>', link_to("Oranges", "http://www.example.com")

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# File 'actionpack/lib/action_dispatch/testing/assertions/dom.rb', line 28

def assert_dom_not_equal(expected, actual, message = "")
  expected_dom = HTML::Document.new(expected).root
  actual_dom   = HTML::Document.new(actual).root
  full_message = build_message(message, "<?> expected to be != to\n<?>.", expected_dom.to_s, actual_dom.to_s)

  assert_block(full_message) { expected_dom != actual_dom }
end