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Showing content from http://rubydoc.info/github/teamcapybara/capybara/master/Capybara/Node/Matchers below:

Matchers – Documentation for teamcapybara/capybara (master) – RubyDoc.info

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# File 'lib/capybara/node/matchers.rb', line 841

def ==(other)
  eql?(other) || (other.respond_to?(:base) && base == other.base)
end

Asserts that all of the provided selectors are present on the given page or descendants of the current node. If options are provided, the assertion will check that each locator is present with those options as well (other than :wait).

page.assert_all_of_selectors(:custom, 'Tom', 'Joe', visible: all)
page.assert_all_of_selectors(:css, '#my_div', 'a.not_clicked')

It accepts all options that Finders#all accepts, such as :text and :visible.

The :wait option applies to all of the selectors as a group, so all of the locators must be present within :wait (defaults to default_max_wait_time) seconds.

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# File 'lib/capybara/node/matchers.rb', line 159

def assert_all_of_selectors(*args, **options, &optional_filter_block)
  _verify_multiple(*args, **options) do |selector, locator, opts|
    assert_selector(selector, locator, opts, &optional_filter_block)
  end
end

Asserts that a given selector matches an ancestor of the current node.

element.assert_ancestor('p#foo')

Accepts the same options as #assert_selector

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# File 'lib/capybara/node/matchers.rb', line 766

def assert_ancestor(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block, Capybara::Queries::AncestorQuery) do |result, query|
    unless result.matches_count? && (result.any? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.failure_message
    end
  end
end

Asserts that any of the provided selectors are present on the given page or descendants of the current node. If options are provided, the assertion will check that each locator is present with those options as well (other than :wait).

page.assert_any_of_selectors(:custom, 'Tom', 'Joe', visible: all)
page.assert_any_of_selectors(:css, '#my_div', 'a.not_clicked')

It accepts all options that Finders#all accepts, such as :text and :visible.

The :wait option applies to all of the selectors as a group, so any of the locators must be present within :wait (defaults to default_max_wait_time) seconds.

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# File 'lib/capybara/node/matchers.rb', line 201

def assert_any_of_selectors(*args, wait: nil, **options, &optional_filter_block)
  wait = session_options.default_max_wait_time if wait.nil?
  selector = (args)
  synchronize(wait) do
    res = args.map do |locator|
      assert_selector(selector, locator, options, &optional_filter_block)
      break nil
    rescue Capybara::ExpectationNotMet => e
      e.message
    end
    raise Capybara::ExpectationNotMet, res.join(' or ') if res

    true
  end
end

Asserts that the current node matches a given selector.

node.assert_matches_selector('p#foo')
node.assert_matches_selector(:xpath, '//p[@id="foo"]')
node.assert_matches_selector(:foo)

It also accepts all options that Finders#all accepts, such as :text and :visible.

node.assert_matches_selector('li', text: 'Horse', visible: true)

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# File 'lib/capybara/node/matchers.rb', line 586

def assert_matches_selector(*args, &optional_filter_block)
  _verify_match_result(args, optional_filter_block) do |result|
    raise Capybara::ExpectationNotMet, 'Item does not match the provided selector' unless result.include? self
  end
end

Asserts that an element has the specified CSS styles.

element.assert_matches_style( 'color' => 'rgb(0,0,255)', 'font-size' => /px/ )

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# File 'lib/capybara/node/matchers.rb', line 126

def assert_matches_style(styles = nil, **options)
  styles, options = options, {} if styles.nil?
  query_args, query_opts = _set_query_session_options(styles, options)
  query = Capybara::Queries::StyleQuery.new(*query_args, **query_opts)
  synchronize(query.wait) do
    raise Capybara::ExpectationNotMet, query.failure_message unless query.resolves_for?(self)
  end
  true
end

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# File 'lib/capybara/node/matchers.rb', line 774

def assert_no_ancestor(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block, Capybara::Queries::AncestorQuery) do |result, query|
    if result.matches_count? && (!result.empty? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.negative_failure_message
    end
  end
end

Asserts that a given selector is not on the page or a descendant of the current node. Usage is identical to #assert_selector.

Query options such as :count, :minimum, :maximum, and :between are considered to be an integral part of the selector. This will return true, for example, if a page contains 4 anchors but the query expects 5:

page.assert_no_selector('a', minimum: 1) page.assert_no_selector('a', count: 4)   page.assert_no_selector('a', count: 5)   

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# File 'lib/capybara/node/matchers.rb', line 233

def assert_no_selector(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block) do |result, query|
    if result.matches_count? && (!result.empty? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.negative_failure_message
    end
  end
end

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# File 'lib/capybara/node/matchers.rb', line 817

def assert_no_sibling(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block, Capybara::Queries::SiblingQuery) do |result, query|
    if result.matches_count? && (!result.empty? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.negative_failure_message
    end
  end
end

Asserts that the page or current node doesn't have the given text content, ignoring any HTML tags.

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# File 'lib/capybara/node/matchers.rb', line 716

def assert_no_text(type_or_text, *args, **opts)
  _verify_text(type_or_text, *args, **opts) do |count, query|
    if query.matches_count?(count) && (count.positive? || query.expects_none?)
      raise Capybara::ExpectationNotMet, query.negative_failure_message
    end
  end
end

Asserts that none of the provided selectors are present on the given page or descendants of the current node. If options are provided, the assertion will check that each locator is not present with those options as well (other than :wait).

page.assert_none_of_selectors(:custom, 'Tom', 'Joe', visible: all)
page.assert_none_of_selectors(:css, '#my_div', 'a.not_clicked')

It accepts all options that Finders#all accepts, such as :text and :visible.

The :wait option applies to all of the selectors as a group, so none of the locators must be present within :wait (defaults to default_max_wait_time) seconds.

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# File 'lib/capybara/node/matchers.rb', line 180

def assert_none_of_selectors(*args, **options, &optional_filter_block)
  _verify_multiple(*args, **options) do |selector, locator, opts|
    assert_no_selector(selector, locator, opts, &optional_filter_block)
  end
end

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# File 'lib/capybara/node/matchers.rb', line 600

def assert_not_matches_selector(*args, &optional_filter_block)
  _verify_match_result(args, optional_filter_block) do |result|
    raise Capybara::ExpectationNotMet, 'Item matched the provided selector' if result.include? self
  end
end

Asserts that a given selector is on the page or a descendant of the current node.

page.assert_selector('p#foo')
page.assert_selector(:xpath, './/p[@id="foo"]')
page.assert_selector(:foo)

By default it will check if the expression occurs at least once, but a different number can be specified.

page.assert_selector('p#foo', count: 4)

This will check if the expression occurs exactly 4 times. See Finders#all for other available result size options.

If a :count of 0 is specified, it will behave like #assert_no_selector; however, use of that method is preferred over this one.

It also accepts all options that Finders#all accepts, such as :text and :visible.

page.assert_selector('li', text: 'Horse', visible: true)

#assert_selector can also accept XPath expressions generated by the XPath gem:

page.assert_selector(:xpath, XPath.descendant(:p))

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# File 'lib/capybara/node/matchers.rb', line 109

def assert_selector(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block) do |result, query|
    unless result.matches_count? && (result.any? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.failure_message
    end
  end
end

Asserts that a given selector matches a sibling of the current node.

element.assert_sibling('p#foo')

Accepts the same options as #assert_selector

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# File 'lib/capybara/node/matchers.rb', line 809

def assert_sibling(*args, &optional_filter_block)
  _verify_selector_result(args, optional_filter_block, Capybara::Queries::SiblingQuery) do |result, query|
    unless result.matches_count? && (result.any? || query.expects_none?)
      raise Capybara::ExpectationNotMet, result.failure_message
    end
  end
end

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# File 'lib/capybara/node/matchers.rb', line 139

def assert_style(styles = nil, **options)
  warn 'assert_style is deprecated, please use assert_matches_style instead'
  assert_matches_style(styles, **options)
end

Asserts that the page or current node has the given text content, ignoring any HTML tags.

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# File 'lib/capybara/node/matchers.rb', line 700

def assert_text(type_or_text, *args, **opts)
  _verify_text(type_or_text, *args, **opts) do |count, query|
    unless query.matches_count?(count) && (count.positive? || query.expects_none?)
      raise Capybara::ExpectationNotMet, query.failure_message
    end
  end
end

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# File 'lib/capybara/node/matchers.rb', line 786

def has_ancestor?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_ancestor(*args, options, &optional_filter_block) }
end

Checks if the page or current node has a button with the given text, value or id.

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# File 'lib/capybara/node/matchers.rb', line 383

def has_button?(locator = nil, **options, &optional_filter_block)
  has_selector?(:button, locator, **options, &optional_filter_block)
end

Checks if the page or current node has a radio button or checkbox with the given label, value, id, or test_id attribute that is currently checked.

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# File 'lib/capybara/node/matchers.rb', line 448

def has_checked_field?(locator = nil, **options, &optional_filter_block)
  has_selector?(:field, locator, **options.merge(checked: true), &optional_filter_block)
end

Checks if a given CSS selector is on the page or a descendant of the current node.

page.has_css?('p#foo')

By default it will check if the selector occurs at least once, but a different number can be specified.

page.has_css?('p#foo', count: 4)

This will check if the selector occurs exactly 4 times.

It also accepts all options that Finders#all accepts, such as :text and :visible.

page.has_css?('li', text: 'Horse', visible: true)

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# File 'lib/capybara/node/matchers.rb', line 309

def has_css?(path, **options, &optional_filter_block)
  has_selector?(:css, path, **options, &optional_filter_block)
end

Checks if the page or current node has a element with the given local name.

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# File 'lib/capybara/node/matchers.rb', line 334

def has_element?(locator = nil, **options, &optional_filter_block)
  has_selector?(:element, locator, **options, &optional_filter_block)
end

Checks if the page or current node has a form field with the given label, name or id.

For text fields and other textual fields, such as textareas and HTML5 email/url/etc. fields, it's possible to specify a :with option to specify the text the field should contain:

page.has_field?('Name', with: 'Jonas')

It is also possible to filter by the field type attribute:

page.has_field?('Email', type: 'email')

NOTE: 'textarea' and 'select' are valid type values, matching the associated tag names.

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# File 'lib/capybara/node/matchers.rb', line 421

def has_field?(locator = nil, **options, &optional_filter_block)
  has_selector?(:field, locator, **options, &optional_filter_block)
end

Checks if the page or current node has a link with the given text or id.

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# File 'lib/capybara/node/matchers.rb', line 359

def has_link?(locator = nil, **options, &optional_filter_block)
  has_selector?(:link, locator, **options, &optional_filter_block)
end

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# File 'lib/capybara/node/matchers.rb', line 794

def has_no_ancestor?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_no_ancestor(*args, options, &optional_filter_block) }
end

Checks if the page or current node has no button with the given text, value or id.

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# File 'lib/capybara/node/matchers.rb', line 395

def has_no_button?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:button, locator, **options, &optional_filter_block)
end

Checks if the page or current node has no radio button or checkbox with the given label, value or id, or test_id attribute that is currently checked.

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# File 'lib/capybara/node/matchers.rb', line 461

def has_no_checked_field?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:field, locator, **options.merge(checked: true), &optional_filter_block)
end

Checks if a given CSS selector is not on the page or a descendant of the current node. Usage is identical to #has_css?.

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# File 'lib/capybara/node/matchers.rb', line 321

def has_no_css?(path, **options, &optional_filter_block)
  has_no_selector?(:css, path, **options, &optional_filter_block)
end

Checks if the page or current node has no element with the given local name.

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# File 'lib/capybara/node/matchers.rb', line 346

def has_no_element?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:element, locator, **options, &optional_filter_block)
end

Checks if the page or current node has no form field with the given label, name or id. See #has_field?.

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# File 'lib/capybara/node/matchers.rb', line 435

def has_no_field?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:field, locator, **options, &optional_filter_block)
end

Checks if the page or current node has no link with the given text or id.

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# File 'lib/capybara/node/matchers.rb', line 371

def has_no_link?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:link, locator, **options, &optional_filter_block)
end

Checks if the page or current node has no select field with the given label, name or id. See #has_select?.

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# File 'lib/capybara/node/matchers.rb', line 532

def has_no_select?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:select, locator, **options, &optional_filter_block)
end

Checks if a given selector is not on the page or a descendant of the current node. Usage is identical to #has_selector?.

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# File 'lib/capybara/node/matchers.rb', line 50

def has_no_selector?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_no_selector(*args, options, &optional_filter_block) }
end

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# File 'lib/capybara/node/matchers.rb', line 837

def has_no_sibling?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_no_sibling(*args, options, &optional_filter_block) }
end

Checks if the page or current node has no table with the given id or caption. See #has_table?.

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# File 'lib/capybara/node/matchers.rb', line 566

def has_no_table?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:table, locator, **options, &optional_filter_block)
end

Checks if the page or current node does not have the given text content, ignoring any HTML tags and normalizing whitespace.

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# File 'lib/capybara/node/matchers.rb', line 750

def has_no_text?(*args, **options)
  make_predicate(options) { assert_no_text(*args, **options) }
end

Checks if the page or current node has no radio button or checkbox with the given label, value or id, or test_id attribute that is currently unchecked.

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# File 'lib/capybara/node/matchers.rb', line 487

def has_no_unchecked_field?(locator = nil, **options, &optional_filter_block)
  has_no_selector?(:field, locator, **options.merge(unchecked: true), &optional_filter_block)
end

Checks if a given XPath expression is not on the page or a descendant of the current node. Usage is identical to #has_xpath?.

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# File 'lib/capybara/node/matchers.rb', line 282

def has_no_xpath?(path, **options, &optional_filter_block)
  has_no_selector?(:xpath, path, **options, &optional_filter_block)
end

Checks if the page or current node has a select field with the given label, name or id.

It can be specified which option should currently be selected:

page.has_select?('Language', selected: 'German')

For multiple select boxes, several options may be specified:

page.has_select?('Language', selected: ['English', 'German'])

It's also possible to check if the exact set of options exists for this select box:

page.has_select?('Language', options: ['English', 'German', 'Spanish'])

You can also check for a partial set of options:

page.has_select?('Language', with_options: ['English', 'German'])

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# File 'lib/capybara/node/matchers.rb', line 520

def has_select?(locator = nil, **options, &optional_filter_block)
  has_selector?(:select, locator, **options, &optional_filter_block)
end

Checks if a given selector is on the page or a descendant of the current node.

page.has_selector?('p#foo')
page.has_selector?(:xpath, './/p[@id="foo"]')
page.has_selector?(:foo)

By default it will check if the expression occurs at least once, but a different number can be specified.

page.has_selector?('p.foo', count: 4)

This will check if the expression occurs exactly 4 times.

It also accepts all options that Finders#all accepts, such as :text and :visible.

page.has_selector?('li', text: 'Horse', visible: true)

#has_selector? can also accept XPath expressions generated by the XPath gem:

page.has_selector?(:xpath, XPath.descendant(:p))

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# File 'lib/capybara/node/matchers.rb', line 38

def has_selector?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_selector(*args, options, &optional_filter_block) }
end

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# File 'lib/capybara/node/matchers.rb', line 829

def has_sibling?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_sibling(*args, options, &optional_filter_block) }
end

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# File 'lib/capybara/node/matchers.rb', line 71

def has_style?(styles = nil, **options)
  Capybara::Helpers.warn "DEPRECATED: has_style? is deprecated, please use matches_style? : #{Capybara::Helpers.filter_backtrace(caller)}"
  matches_style?(styles, **options)
end

Checks if the page or current node has a table with the given id or caption:

page.has_table?('People')

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# File 'lib/capybara/node/matchers.rb', line 554

def has_table?(locator = nil, **options, &optional_filter_block)
  has_selector?(:table, locator, **options, &optional_filter_block)
end

Checks if the page or current node has the given text content, ignoring any HTML tags.

By default it will check if the text occurs at least once, but a different number can be specified.

page.has_text?('lorem ipsum', between: 2..4)

This will check if the text occurs from 2 to 4 times.

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# File 'lib/capybara/node/matchers.rb', line 738

def has_text?(*args, **options)
  make_predicate(options) { assert_text(*args, **options) }
end

Checks if the page or current node has a radio button or checkbox with the given label, value or id, or test_id attribute that is currently unchecked.

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# File 'lib/capybara/node/matchers.rb', line 474

def has_unchecked_field?(locator = nil, **options, &optional_filter_block)
  has_selector?(:field, locator, **options.merge(unchecked: true), &optional_filter_block)
end

Checks if a given XPath expression is on the page or a descendant of the current node.

page.has_xpath?('.//p[@id="foo"]')

By default it will check if the expression occurs at least once, but a different number can be specified.

page.has_xpath?('.//p[@id="foo"]', count: 4)

This will check if the expression occurs exactly 4 times.

It also accepts all options that Finders#all accepts, such as :text and :visible.

page.has_xpath?('.//li', text: 'Horse', visible: true)

#has_xpath? can also accept XPath expressions generated by the XPath gem:

xpath = XPath.generate { |x| x.descendant(:p) }
page.has_xpath?(xpath)

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# File 'lib/capybara/node/matchers.rb', line 270

def has_xpath?(path, **options, &optional_filter_block)
  has_selector?(:xpath, path, **options, &optional_filter_block)
end

Checks if the current node matches given CSS selector.

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# File 'lib/capybara/node/matchers.rb', line 635

def matches_css?(css, **options, &optional_filter_block)
  matches_selector?(:css, css, **options, &optional_filter_block)
end

Checks if the current node matches given selector.

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# File 'lib/capybara/node/matchers.rb', line 613

def matches_selector?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_matches_selector(*args, options, &optional_filter_block) }
end

Checks if a an element has the specified CSS styles.

element.matches_style?( 'color' => 'rgb(0,0,255)', 'font-size' => /px/ )

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# File 'lib/capybara/node/matchers.rb', line 63

def matches_style?(styles = nil, **options)
  styles, options = options, {} if styles.nil?
  make_predicate(options) { assert_matches_style(styles, **options) }
end

Checks if the current node matches given XPath expression.

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# File 'lib/capybara/node/matchers.rb', line 624

def matches_xpath?(xpath, **options, &optional_filter_block)
  matches_selector?(:xpath, xpath, **options, &optional_filter_block)
end

Checks if the current node does not match given CSS selector.

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# File 'lib/capybara/node/matchers.rb', line 669

def not_matches_css?(css, **options, &optional_filter_block)
  not_matches_selector?(:css, css, **options, &optional_filter_block)
end

Checks if the current node does not match given selector. Usage is identical to #has_selector?.

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# File 'lib/capybara/node/matchers.rb', line 647

def not_matches_selector?(*args, **options, &optional_filter_block)
  make_predicate(options) { assert_not_matches_selector(*args, options, &optional_filter_block) }
end

Checks if the current node does not match given XPath expression.

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# File 'lib/capybara/node/matchers.rb', line 658

def not_matches_xpath?(xpath, **options, &optional_filter_block)
  not_matches_selector?(:xpath, xpath, **options, &optional_filter_block)
end

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