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Loic Teixeira
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Add Assignment 01 Sources
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‎01_array_enumerable_enumerator/lib/base.rb

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class BasicObject
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NIX = ::Object.new
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def nix
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return NIX
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end
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def nix?
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return equal?(NIX)
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end
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def checkcast(s)
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return self
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end
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end
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class Class
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alias_method :__new__, :new
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end
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class << self
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def each_manifest_name(dir)
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path = File.join(dir, "manifest.txt")
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lines = File.readlines(path)
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lines.each do |line|
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name = line.strip
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unless name.empty?
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yield name
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end
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end
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return
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end
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def load_manifest(dir)
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each_manifest_name(dir) do |name|
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path = File.join(dir, "ruby", name)
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if File.exist?(path)
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load(path)
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end
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end
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return
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end
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def load_parent_manifest(dir)
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load_manifest(File.dirname(dir))
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return
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end
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end

‎01_array_enumerable_enumerator/lib/memory.rb

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dir = File.dirname(File.expand_path(__FILE__))
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require(File.join(dir, "base.rb"))
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class Memory
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class Error < Exception
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end
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class << self
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def new(n)
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if n < 0
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raise Error.new("negative size: #{n}")
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end
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values = Array.new(n)
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return Memory.__new__(values)
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end
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def [](*values)
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return Memory.__new__(values)
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end
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end
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def initialize(values)
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super()
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@values = values
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return
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end
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def __assert_bounds(i)
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if i < 0 || i >= size
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raise Error.new("index out of bounds for size #{size}: #{i}")
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end
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return
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end
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def size
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return @values.size
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end
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def [](i)
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__assert_bounds(i)
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return @values[i]
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end
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def []=(i, e)
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__assert_bounds(i)
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@values[i] = e
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return
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end
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end

‎01_array_enumerable_enumerator/lib/quickspec.rb

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dir = File.dirname(File.expand_path(__FILE__))
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require(File.join(dir, "base.rb"))
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module QuickSpec
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module Expectations
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class ExpectationNotMetError < Exception
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end
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class ExpectationTarget
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def initialize(observed)
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super()
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@observed = observed
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return
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end
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def to(matcher)
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matcher.to(@observed)
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return
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end
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def not_to(matcher)
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matcher.not_to(@observed)
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return
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end
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end
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end
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module Matchers
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module BuiltIn
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class YieldProbe
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def initialize
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super()
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@yielded_args = []
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return
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end
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attr_reader :yielded_args
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def call(args)
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if args.size == 1
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@yielded_args.push(args.first)
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else
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@yielded_args.push(args)
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end
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return
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end
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def to_proc
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return lambda { |*args| call(args) }
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end
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end
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class BaseMatcher
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def initialize(expected)
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super()
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@expected = expected
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return
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end
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end
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class Eql < BaseMatcher
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def to(observed)
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unless observed.eql?(@expected)
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message = "expected #{observed.inspect} to eql #{@expected.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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def not_to(observed)
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if observed.eql?(@expected)
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message = "expected #{observed.inspect} not to eql #{@expected.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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end
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class RaiseError < BaseMatcher
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def to(observed)
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begin
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observed.call
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rescue @expected
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return
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end
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message = "expected to raise #{@expected.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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def not_to(observed)
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begin
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observed.call
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rescue @expected
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message = "expected not to raise #{@expected.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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end
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class YieldControl < BaseMatcher
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def to(observed)
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probe = YieldProbe.new
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observed.call(probe)
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if probe.yielded_args.empty?
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message = "expected to yield"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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def not_to(observed)
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probe = YieldProbe.new
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observed.call(probe)
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unless probe.yielded_args.empty?
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message = "expected not to yield but yielded #{probe.yielded_args.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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end
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class YieldSuccessiveArgs < BaseMatcher
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def to(observed)
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probe = YieldProbe.new
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observed.call(probe)
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unless probe.yielded_args.eql?(@expected)
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message = "expected to yield #{@expected.inspect} but yielded #{probe.yielded_args.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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def not_to(observed)
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probe = YieldProbe.new
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observed.call(probe)
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if probe.yielded_args.eql?(@expected)
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message = "expected not to yield #{@expected.inspect} but yielded #{probe.yielded_args.inspect}"
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raise Expectations::ExpectationNotMetError.new(message)
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end
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return
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end
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end
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end
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def expect(observed = nix, &block)
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if block_given?
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unless observed.nix?
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raise ArgumentError.new
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end
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return Expectations::ExpectationTarget.new(block)
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else
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if observed.nix?
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raise ArgumentError.new
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end
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return Expectations::ExpectationTarget.new(observed)
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end
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end
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def eql(expected)
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return BuiltIn::Eql.new(expected)
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end
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def raise_error(expected)
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return BuiltIn::RaiseError.new(expected)
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end
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def yield_control
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return BuiltIn::YieldControl.new(nil)
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end
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def yield_successive_args(*args)
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return BuiltIn::YieldSuccessiveArgs.new(args)
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end
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end
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module Core
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class << self
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def puts_exception_message(e)
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if e.is_a?(Expectations::ExpectationNotMetError)
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puts <<-END
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#{e.message}
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END
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else
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puts <<-END
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#{e.class}: #{e.message}
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END
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end
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return
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end
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def puts_exception_backtrace(e)
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first = true
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e.backtrace.each do |line|
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if line.start_with?("#{__FILE__}:")
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unless first
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break
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end
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else
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first = false
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puts <<-END
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#{line}
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END
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end
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end
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return
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end
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def puts_exception(e)
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puts_exception_message(e)
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puts_exception_backtrace(e)
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return
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end
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end
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class ExampleGroup
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include Matchers
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class << self
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def it(message, &block)
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print " it #{message}... "
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begin
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new.instance_eval(&block)
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rescue Exception
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puts "fail"
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Core.puts_exception($!)
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return
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end
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puts "ok"
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return
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end
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end
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end
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end
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class << self
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def describe(name, &block)
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puts
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puts <<-END
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describe #{name}:
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END
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c = Class.new(Core::ExampleGroup)
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c.class_eval(&block)
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return
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end
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end
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end
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class << self
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def describe(name, &block)
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QuickSpec.describe(name, &block)
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return
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end
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end

‎01_array_enumerable_enumerator/lib/school.rb

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dir = File.dirname(File.expand_path(__FILE__))
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require(File.join(dir, "base.rb"))
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require(File.join(dir, "memory.rb"))
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load_parent_manifest(dir)

‎01_array_enumerable_enumerator/manifest.txt

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MyEnumerable.rb
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MyEnumerator.rb
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MyArray.rb

‎01_array_enumerable_enumerator/quickspec.rb

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dir = File.dirname(File.expand_path(__FILE__))
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require(File.join(dir, "lib", "quickspec.rb"))
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$: << File.join(dir, "lib")
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$: << File.join(dir, "spec")
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pattern = "**/*_spec.{ir,rb}"
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Dir["spec/#{pattern}"].each do |path|
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load(path)
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end

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