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module JSONHelper
UNDEFINED = Object.new.freeze
private_constant :UNDEFINED
def assert_json(path = nil, expected_value = UNDEFINED, document: response.body)
value = follow_path(path.to_s.split('.'), document: document)
if block_given?
yield value
elsif expected_value == UNDEFINED
raise ArgumentError, "Missing either expected_value or a block"
elsif expected_value.nil?
assert_nil value
else
assert_equal expected_value, value
end
end
def assert_json_keys(path, keys = nil, document: response.body)
keys, path = path, nil if keys.nil?
value = follow_path(path.to_s.split('.'), document: document)
case value
when Hash
assert_equal keys.sort, value.keys.sort
else
assert false, "Expected #{path} to be a Hash, was: #{value.inspect}"
end
end
def assert_no_json(path, document: response.body)
segments = path.to_s.split('.')
last_segment = segments.pop
leaf = follow_path(segments, document: document)
case leaf
when Hash
refute leaf.key?(last_segment), "Expected #{leaf.inspect} not to include #{last_segment.inspect}"
when Array
refute leaf.size > last_segment.to_i, "Expected #{leaf.inspect} to not have element at index #{last_segment.to_i}"
else
assert false, "Expected #{leaf.inspect} to be a Hash or Array"
end
end
private
def follow_path(segments, document:)
parsed_json = ActiveSupport::JSON.decode(document)
segments.inject(parsed_json) do |object, key|
case object
when Hash
assert_includes object, key
object[key]
when Array
assert object.size > key.to_i, "#{object.inspect} have no property #{key}"
object[key.to_i]
else
assert false, "Expected #{object.inspect} to be a Hash or Array"
end
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems