Class: Brut::SpecSupport::Matchers::HaveHTMLAttribute

Inherits:
Object
  • Object
show all
Defined in:
lib/brut/spec_support/matchers/have_html_attribute.rb

Overview

Used in component or page specs to check that a given node has a particular HTML attribnute, or an attribute with a speecific value.

Examples:

result = generate_and_parse(page)
expect(result.e!("blockquote")).to have_html_attribute(:id)

Expecting a value as well

result = generate_and_parse(page)
expect(result.e!("blockquote")).to have_html_attribute(id: "foo")

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(result, attribute) ⇒ HaveHTMLAttribute

Returns a new instance of HaveHTMLAttribute.



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# File 'lib/brut/spec_support/matchers/have_html_attribute.rb', line 42

def initialize(result, attribute)
  @error = nil
  if result.kind_of?(Nokogiri::XML::NodeSet)
    if result.length > 1
      @error = "Received #{result.length} matching nodes, when only one should've been returned"
    elsif result.length == 0
      @error = "Received no matching nodes to examine"
    else
      result = result.first
    end
  else
    object_to_check = if result.kind_of?(SimpleDelegator)
                        result.__getobj__
                      else
                        result
                      end
    if !object_to_check.kind_of?(Nokogiri::XML::Element)
      @error = "Received a #{result.class} instead of a NodeSet or Element, as could be returned by `.css(...)`"
    end
  end
  if !@error
    if attribute.kind_of?(Hash)
      attribute_name  = attribute.keys.first.to_s
      attribute_value = attribute.values.first.to_s
    else
      attribute_name = attribute.to_s
      attribute_value = :any
    end

    nokogiri_attribute = result.attribute(attribute_name)
    if nokogiri_attribute
      if attribute_value != :any
        found_value = result.attribute(attribute_name).value

        if found_value != attribute_value
          @error = "Value for '#{attribute_name}' was '#{found_value}'. Expected '#{attribute_value}'"
        end
      end
    else
      @error = "Did not find attribute '#{attribute_name}' on element.  Found: #{result.attributes.keys.join(", ")}"
    end
  end
end

Instance Attribute Details

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/brut/spec_support/matchers/have_html_attribute.rb', line 40

def error
  @error
end

Instance Method Details

#matches? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/brut/spec_support/matchers/have_html_attribute.rb', line 86

def matches? = @error.nil?