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require 'spec_helper'
RSpec.describe Hashie::Extensions::Mash::SymbolizeKeys do
it 'raises an error when included in a class that is not a Mash' do
expect do
Class.new do
include Hashie::Extensions::Mash::SymbolizeKeys
end
end.to raise_error(ArgumentError)
end
context 'when included in a Mash' do
class SymbolizedMash < Hashie::Mash
include Hashie::Extensions::Mash::SymbolizeKeys
end
it 'symbolizes string keys in the Mash' do
my_mash = SymbolizedMash.new('test' => 'value')
expect(my_mash.to_h).to eq(test: 'value')
end
it 'preserves keys which cannot be symbolized' do
my_mash = SymbolizedMash.new(
'1' => 'symbolizable one',
1 => 'one',
[1, 2, 3] => 'testing',
{ 'test' => 'value' } => 'value'
)
expect(my_mash.to_h).to eq(
:'1' => 'symbolizable one',
1 => 'one',
[1, 2, 3] => 'testing',
{ 'test' => 'value' } => 'value'
)
end
end
context 'implicit to_hash on double splat' do
let(:destructure) { ->(**opts) { opts } }
let(:my_mash) do
Class.new(Hashie::Mash) do
include Hashie::Extensions::Mash::SymbolizeKeys
end
end
let(:instance) { my_mash.new('outer' => { 'inner' => 42 }, 'testing' => [1, 2, 3]) }
subject { destructure.call(**instance) }
it 'is converted on method calls' do
expect(subject).to eq(outer: { inner: 42 }, testing: [1, 2, 3])
end
it 'is converted on explicit operator call' do
expect(**instance).to eq(outer: { inner: 42 }, testing: [1, 2, 3])
end
end
end
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