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adding respond_with_content_type matcher
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70 changes: 70 additions & 0 deletions
70
lib/shoulda/controller/matchers/respond_with_content_type_matcher.rb
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module Shoulda # :nodoc: | |||
module Controller # :nodoc: | |||
module Matchers | |||
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# Ensures a controller responded with expected 'response' content type. | |||
# | |||
# You can pass an explicit content type such as 'application/rss+xml' | |||
# or its symbolic equivalent :rss | |||
# or a regular expression such as /rss/ | |||
# | |||
# Example: | |||
# | |||
# it { should respond_with_content_type(:xml) } | |||
# it { should respond_with_content_type(:csv) } | |||
# it { should respond_with_content_type(:atom) } | |||
# it { should respond_with_content_type(:yaml) } | |||
# it { should respond_with_content_type(:text) } | |||
# it { should respond_with_content_type('application/rss+xml') } | |||
# it { should respond_with_content_type(/json/) } | |||
def respond_with_content_type(content_type) | |||
RespondWithContentTypeMatcher.new(content_type) | |||
end | |||
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class RespondWithContentTypeMatcher # :nodoc: | |||
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def initialize(content_type) | |||
@content_type = if content_type.is_a?(Symbol) | |||
lookup_by_extension(content_type) | |||
else | |||
content_type | |||
end | |||
end | |||
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def matches?(controller) | |||
@controller = controller | |||
if @content_type.is_a?(Regexp) | |||
response_content_type =~ @content_type | |||
else | |||
response_content_type == @content_type | |||
end | |||
end | |||
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def failure_message | |||
"Expected #{expectation}" | |||
end | |||
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def negative_failure_message | |||
"Did not expect #{expectation}" | |||
end | |||
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protected | |||
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def response_content_type | |||
@controller.response.content_type | |||
end | |||
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def lookup_by_extension(extension) | |||
Mime::Type.lookup_by_extension(extension.to_s).to_s | |||
end | |||
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def expectation | |||
"content type to be #{@content_type}, " << | |||
"but was #{response_content_type}" | |||
end | |||
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end | |||
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end | |||
end | |||
end |
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27
test/matchers/controller/respond_with_content_type_matcher_test.rb
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require File.join(File.dirname(__FILE__), '..', '..', 'test_helper') | |||
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class RespondWithContentTypeMatcherTest < Test::Unit::TestCase # :nodoc: | |||
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context "a controller responding with content type :xml" do | |||
setup do | |||
@controller = build_response { render :xml => { :user => "thoughtbot" }.to_xml } | |||
end | |||
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should "accept responding with content type :xml" do | |||
assert_accepts respond_with_content_type(:xml), @controller | |||
end | |||
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should "accept responding with content type 'application/xml'" do | |||
assert_accepts respond_with_content_type('application/xml'), @controller | |||
end | |||
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should "accept responding with content type /xml/" do | |||
assert_accepts respond_with_content_type(/xml/), @controller | |||
end | |||
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should "reject responding with another content type" do | |||
assert_rejects respond_with_content_type(:json), @controller | |||
end | |||
end | |||
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end |