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Contents
require 'spec_helper'
describe FormatParser::HashUtils do
describe '.deep_transform_keys' do
it 'transforms all the keys in a hash' do
hash = { aa: 1, 'bb' => 2 }
result = described_class.deep_transform_keys(hash, &:to_s)
expect(result).to eq('aa' => 1, 'bb' => 2)
end
it 'transforms all the keys in a array of hashes' do
array = [{ aa: 1, bb: 2 }, { cc: 3, dd: [{c: 2, d: 3}] }]
result = described_class.deep_transform_keys(array, &:to_s)
expect(result).to eq(
[{'aa' => 1, 'bb' => 2}, {'cc' => 3, 'dd' => [{'c' => 2, 'd' => 3}]}]
)
end
it 'transforms all the keys in a hash recursively' do
hash = { aa: 1, bb: { cc: 22, dd: 3 } }
result = described_class.deep_transform_keys(hash, &:to_s)
expect(result).to eq('aa' => 1, 'bb' => { 'cc' => 22, 'dd' => 3})
end
it 'does nothing for an non array/hash object' do
object = Object.new
result = described_class.deep_transform_keys(object, &:to_s)
expect(result).to eq(object)
end
it 'returns the last value if different keys are transformed into the same one' do
hash = { aa: 0, 'bb' => 2, bb: 1 }
result = described_class.deep_transform_keys(hash, &:to_s)
expect(result).to eq('aa' => 0, 'bb' => 1)
end
end
end
Version data entries
50 entries across 50 versions & 1 rubygems