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require "spec_helper"
require "hamster/nested"
require "hamster/deque"
require "set"
describe Hamster do
expectations = [
# [Ruby, Hamster]
[ { "a" => 1,
"b" => [2, {"c" => 3}, 4],
"d" => ::Set.new([5, 6, 7]),
"e" => {"f" => 8, "g" => 9},
"h" => Regexp.new("ijk") },
Hamster::Hash[
"a" => 1,
"b" => Hamster::Vector[2, Hamster::Hash["c" => 3], 4],
"d" => Hamster::Set[5, 6, 7],
"e" => Hamster::Hash["f" => 8, "g" => 9],
"h" => Regexp.new("ijk")] ],
[ {}, Hamster::Hash[] ],
[ {"a" => 1, "b" => 2, "c" => 3}, Hamster::Hash["a" => 1, "b" => 2, "c" => 3] ],
[ [], Hamster::Vector[] ],
[ [1, 2, 3], Hamster::Vector[1, 2, 3] ],
[ ::Set.new, Hamster::Set[] ],
[ ::Set.new([1, 2, 3]), Hamster::Set[1, 2, 3] ],
[ 42, 42 ],
[ STDOUT, STDOUT ],
# Struct conversion is one-way (from Ruby core Struct to Hamster::Hash), not back again!
[ Struct::Customer.new, Hamster::Hash[name: nil, address: nil], true ],
[ Struct::Customer.new('Dave', '123 Main'), Hamster::Hash[name: 'Dave', address: '123 Main'], true ]
]
describe ".from" do
expectations.each do |input, expected_result|
context "with #{input.inspect} as input" do
it "should return #{expected_result.inspect}" do
Hamster.from(input).should eql(expected_result)
end
end
end
context "with mixed object" do
it "should return Hamster data" do
input = {
"a" => "b",
"c" => {"d" => "e"},
"f" => Hamster::Vector["g", "h", []],
"i" => Hamster::Hash["j" => {}, "k" => Hamster::Set[[], {}]] }
expected_result = Hamster::Hash[
"a" => "b",
"c" => Hamster::Hash["d" => "e"],
"f" => Hamster::Vector["g", "h", Hamster::EmptyVector],
"i" => Hamster::Hash["j" => Hamster::EmptyHash, "k" => Hamster::Set[Hamster::EmptyVector, Hamster::EmptyHash]] ]
Hamster.from(input).should eql(expected_result)
end
end
end
describe ".to_ruby" do
expectations.each do |expected_result, input, one_way|
unless one_way
context "with #{input.inspect} as input" do
xit "should return #{expected_result.inspect}" do
Hamster.to_ruby(input).should eql(expected_result)
end
end
end
end
context "with Hamster::Deque[] as input" do
it "should return []" do
Hamster.to_ruby(Hamster::Deque[]).should eql([])
end
end
context "with Hamster::Deque[Hamster::Hash[\"a\" => 1]] as input" do
it "should return [{\"a\" => 1}]" do
Hamster.to_ruby(Hamster::Deque[Hamster::Hash["a" => 1]]).should eql([{"a" => 1}])
end
end
context 'with Hamster::SortedSet[] as input' do
it 'should return ::SortedSet.new' do
Hamster.to_ruby(Hamster::SortedSet[]).should == ::SortedSet.new
end
end
context 'with Hamster::SortedSet[1, 2, 3] as input' do
it 'should return ::SortedSet.new' do
Hamster.to_ruby(Hamster::SortedSet[1, 2, 3]).should == ::SortedSet.new([1, 2, 3])
end
end
context "with mixed object" do
it "should return Ruby data structures" do
input = Hamster::Hash[
"a" => "b",
"c" => {"d" => "e"},
"f" => Hamster::Vector["g", "h"],
"i" => {"j" => Hamster::EmptyHash, "k" => Set.new([Hamster::EmptyVector, Hamster::EmptyHash])}]
expected_result = {
"a" => "b",
"c" => {"d" => "e"},
"f" => ["g", "h"],
"i" => {"j" => {}, "k" => Set.new([[], {}])} }
Hamster.to_ruby(input).should eql(expected_result)
end
end
end
end
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