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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Utils::JsonSizeEstimator do
RSpec::Matchers.define :match_json_bytesize_of do |expected|
match do |actual|
actual == expected.to_json.bytesize
end
end
def estimate(object)
described_class.estimate(object)
end
[
[],
[[[[]]]],
[1, "str", 3.14, ["str", { a: -1 }]],
{},
{ a: {} },
{ a: { b: { c: [1, 2, 3], e: Time.now, f: nil } } },
{ 100 => 500 },
{ '狸' => '狸' },
nil
].each do |example|
it { expect(estimate(example)).to match_json_bytesize_of(example) }
end
it 'calls #to_s on unknown object' do
klass = Class.new do
def to_s
'hello'
end
end
expect(estimate(klass.new)).to match_json_bytesize_of(klass.new.to_s) # "hello"
end
end
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