mirror of https://github.com/tailix/libclayer.git
86 lines
2.2 KiB
Ruby
86 lines
2.2 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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KernAux::Version.with_printf? and RSpec.describe KernAux, '.sprintf' do
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subject :sprintf do
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described_class.sprintf 'Hello, %s!', 'World'
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end
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it { is_expected.to be_instance_of String }
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it { is_expected.to be_frozen }
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it { is_expected.to eq 'Hello, World!' }
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context 'when there are too many arguments' do
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[
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['Hello!', 'World!'],
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['Hello, %s!', 'World', 'Alex'],
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].each do |args|
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it "raises on #{args.inspect}" do
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expect { described_class.sprintf(*args) }.to \
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raise_error ArgumentError, 'too many arguments'
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end
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end
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end
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context 'when there are too few arguments' do
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[
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[],
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['Hello, %s!'],
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['Hello, %*s!', 20],
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['Hello, %.*s!', 20],
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['Hello, %*.*s!', 20, 20],
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].each do |args|
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it "raises on #{args.inspect}" do
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expect { described_class.sprintf(*args) }.to \
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raise_error ArgumentError, 'too few arguments'
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end
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end
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end
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[
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['', 'using regular fixtures'],
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['_orig', 'using original fixtures'],
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].each do |(suffix, description)|
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context description do
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printf_yml = File.expand_path(
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"../../../../../fixtures/printf#{suffix}.yml",
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__dir__,
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)
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YAML.safe_load_file(printf_yml).each do |test|
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expected = test['result']
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format = ''
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args = []
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test['args'].each do |arg|
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if arg.is_a? String
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format += arg
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else
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format += arg[0]
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arg[1..].each do |item|
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if item.is_a? Array
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if item.length == 1
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args << item[0]
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elsif item[0] == 'long long'
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args << item[1]
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else
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raise "Unknown format: #{args.inspect}"
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end
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else
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args << item
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end
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end
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end
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end
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it "transforms (#{format.inspect}, #{args.inspect[1...-1]}) " \
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"to #{expected.inspect}" do
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expect(described_class.sprintf(format, *args)).to eq expected
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end
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end
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end
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end
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end
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