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Contents
require 'spec_helper'
describe '#flatten_keys_to_joined_string' do
it 'flattens a deep hash into a shallow one' do
deep = {'a' => {'b' => {'c' => {'d' => 'e'}}}}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a::b::c::d' => 'e'})
end
it 'handles duplicate keys' do
deep = {'a' => {'a' => {'a' => {'a' => 'a'}}}}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a::a::a::a' => 'a'})
end
it 'creates keys for each grandchilds values' do
deep = {'a' => {'b' => 'c', 'd' => 'e'}}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a::b' => 'c'})
expect(shallow).to include({'a::d' => 'e'})
end
it 'does not change keys with ::' do
deep = {'a::b' => {'c::d' => 'e'}}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a::b::c::d' => 'e'})
end
it 'does not blow up on an empty hash' do
deep = {}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({})
end
it 'converts key symbols to strings' do
deep = {:a => 'b'}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a' => 'b'})
end
it 'converts nested key symbols to strings' do
deep = {:a => {:b => 'c'}}
shallow = flatten_keys_to_joined_string(deep)
expect(shallow).to include({'a::b' => 'c'})
end
end
Version data entries
31 entries across 31 versions & 1 rubygems