gitlab-org--gitlab-foss/spec/lib/gitlab/utils/inline_hash_spec.rb

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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::Utils::InlineHash do
describe '.merge_keys' do
subject { described_class.merge_keys(source) }
let(:source) do
{
nested_param: {
key: :Value
},
'root_param' => 'Root',
unnested_symbol_key: :unnested_symbol_value,
12 => 22,
'very' => {
'deep' => {
'nested' => {
'param' => 'Deep nested value'
}
}
}
}
end
it 'transforms a nested hash into a one-level hash' do
is_expected.to eq(
'nested_param.key' => :Value,
'root_param' => 'Root',
:unnested_symbol_key => :unnested_symbol_value,
12 => 22,
'very.deep.nested.param' => 'Deep nested value'
)
end
it 'retains key insertion order' do
expect(subject.keys)
.to eq(['nested_param.key', 'root_param', :unnested_symbol_key, 12, 'very.deep.nested.param'])
end
context 'with a custom connector' do
subject { described_class.merge_keys(source, connector: '::') }
it 'uses the connector to merge keys' do
is_expected.to eq(
'nested_param::key' => :Value,
'root_param' => 'Root',
:unnested_symbol_key => :unnested_symbol_value,
12 => 22,
'very::deep::nested::param' => 'Deep nested value'
)
end
end
context 'with a starter prefix' do
subject { described_class.merge_keys(source, prefix: 'options') }
it 'prefixes all the keys' do
is_expected.to eq(
'options.nested_param.key' => :Value,
'options.root_param' => 'Root',
'options.unnested_symbol_key' => :unnested_symbol_value,
'options.12' => 22,
'options.very.deep.nested.param' => 'Deep nested value'
)
end
end
end
end