Class: AssertJson::Json
- Inherits:
-
Object
- Object
- AssertJson::Json
- Defined in:
- lib/assert_json/assert_json.rb
Overview
nodoc
Instance Method Summary collapse
- #element(*args) ⇒ Object (also: #has)
- #has_length_of(expected) ⇒ Object
-
#initialize(json_string) ⇒ Json
constructor
A new instance of Json.
- #item(index) ⇒ Object
- #not_element(*args) ⇒ Object (also: #has_not)
- #only ⇒ Object (also: #has_only)
- #test_for_unexpected_keys(name = 'root') ⇒ Object
Constructor Details
#initialize(json_string) ⇒ Json
Returns a new instance of Json.
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# File 'lib/assert_json/assert_json.rb', line 36 def initialize(json_string) @decoded_json = ActiveSupport::JSON.decode(json_string) @expected_keys = [] @only = false end |
Instance Method Details
#element(*args) ⇒ Object Also known as: has
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# File 'lib/assert_json/assert_json.rb', line 64 def element(*args) arg = args.shift token = case @decoded_json when Array @decoded_json.shift else @decoded_json end case token when Hash arg = arg.to_s raise_error("element #{arg} not found") unless token.keys.include?(arg) unless args.empty? second_arg = args.shift gen_error = -> { raise_error("element #{token[arg].inspect} does not match #{second_arg.inspect}") } case second_arg when Regexp gen_error.call if second_arg !~ token[arg].to_s when Symbol gen_error.call if second_arg.to_s != token[arg] else gen_error.call if second_arg != token[arg] end end when Array raise_error("element #{arg} not found") if !block_given? && token != arg when String case arg when Regexp raise_error("element #{arg.inspect} not found") if token !~ arg else raise_error("element #{arg.inspect} not found") if token != arg.to_s end when NilClass raise_error("no element left") else flunk end @expected_keys.push arg return unless block_given? begin only_in_scope = @only expected_keys_in_scope = @expected_keys @expected_keys = [] decoded_json_in_scope = @decoded_json @decoded_json = case token when Hash token[arg] else token end yield test_for_unexpected_keys(arg) ensure @expected_keys = expected_keys_in_scope @only = only_in_scope @decoded_json = decoded_json_in_scope end end |
#has_length_of(expected) ⇒ Object
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# File 'lib/assert_json/assert_json.rb', line 42 def has_length_of(expected) raise_error("element #{@decoded_json.inspect} is not sizable") unless @decoded_json.respond_to?(:size) return if @decoded_json.size == expected raise_error("element #{@decoded_json.inspect} has #{@decoded_json.size} items, expected #{expected}") end |
#item(index) ⇒ Object
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# File 'lib/assert_json/assert_json.rb', line 48 def item(index) only_in_scope = @only expected_keys_in_scope = @expected_keys @expected_keys = [] decoded_json_in_scope = @decoded_json @decoded_json = @decoded_json[index] begin yield if block_given? test_for_unexpected_keys(index) ensure @decoded_json = decoded_json_in_scope @expected_keys = expected_keys_in_scope @only = only_in_scope end end |
#not_element(*args) ⇒ Object Also known as: has_not
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# File 'lib/assert_json/assert_json.rb', line 129 def not_element(*args) arg = args.shift token = @decoded_json case token when Array raise_error("element #{arg} found, but not expected") if token.include?(arg.to_s) else raise_error("element #{arg} found, but not expected") if token.keys.include?(arg.to_s) end end |
#only ⇒ Object Also known as: has_only
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# File 'lib/assert_json/assert_json.rb', line 141 def only @only = true end |
#test_for_unexpected_keys(name = 'root') ⇒ Object
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# File 'lib/assert_json/assert_json.rb', line 146 def test_for_unexpected_keys(name = 'root') return unless @only return unless @decoded_json.is_a?(Hash) unexpected_keys = @decoded_json.keys - @expected_keys return if unexpected_keys.count <= 0 raise_error("element #{name} has unexpected keys: #{unexpected_keys.join(', ')}") end |