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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::DiscussionsDiff::HighlightCache, :clean_gitlab_redis_cache do
def fake_file(offset)
{
text: 'foo',
type: 'new',
index: 2 + offset,
old_pos: 10 + offset,
new_pos: 11 + offset,
line_code: 'xpto',
rich_text: '<blips>blops</blips>'
}
end
let(:mapping) do
{
3 => [
fake_file(0),
fake_file(1)
],
4 => [
fake_file(2)
]
}
end
describe '#write_multiple' do
it 'sets multiple keys serializing content as JSON' do
described_class.write_multiple(mapping)
mapping.each do |key, value|
full_key = described_class.cache_key_for(key)
found = Gitlab::Redis::Cache.with { |r| r.get(full_key) }
expect(found).to eq(value.to_json)
end
end
end
describe '#read_multiple' do
it 'reads multiple keys and serializes content into Gitlab::Diff::Line objects' do
described_class.write_multiple(mapping)
found = described_class.read_multiple(mapping.keys)
expect(found.size).to eq(2)
expect(found.first.size).to eq(2)
expect(found.first).to all(be_a(Gitlab::Diff::Line))
end
it 'returns nil when cached key is not found' do
described_class.write_multiple(mapping)
found = described_class.read_multiple([2, 3])
expect(found.size).to eq(2)
expect(found.first).to eq(nil)
expect(found.second.size).to eq(2)
expect(found.second).to all(be_a(Gitlab::Diff::Line))
end
end
describe '#clear_multiple' do
it 'removes all named keys' do
described_class.write_multiple(mapping)
described_class.clear_multiple(mapping.keys)
expect(described_class.read_multiple(mapping.keys)).to all(be_nil)
end
it 'only removed named keys' do
to_clear, to_leave = mapping.keys
described_class.write_multiple(mapping)
described_class.clear_multiple([to_clear])
cleared, left = described_class.read_multiple([to_clear, to_leave])
expect(cleared).to be_nil
expect(left).to all(be_a(Gitlab::Diff::Line))
end
end
end
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