spec/notimplemented_spec.rb

gem 'minitest'
require 'minitest/autorun'
require 'ruby2js'

describe 'not implemented' do
  # see https://github.com/whitequark/parser/blob/master/doc/AST_FORMAT.md

  def todo(string)
    _(proc { Ruby2JS.convert(string, filters: []) }).
      must_raise NotImplementedError
  end

  it "range inclusive" do
    # NOTE: for loops and filter/functions will handle the special case of array indexes
    # NOTE: filter/rubyjs implements this
    # NOTE: .to_a is implemented in send

    todo( '1..2' )
  end

  it "range exclusive" do
    # NOTE: for loops and filter/functions will handle the special case of array indexes
    # NOTE: filter/rubyjs implements this
    todo( '1...2' )
  end

  it "decomposition" do
    # NOTE: option {eslevel: es2015} implements this
    todo( 'def f(a, (foo, *bar)); end' )
  end

  it "class visibility modifiers" do
    todo( 'class C; public; end' )
    todo( 'class C; private; end' )
    todo( 'class C; protected; end' )
  end

  it "catching exceptions with different variables" do
    todo("begin; a; rescue StandardException => se; b; " +
      "rescue Exception => e; c; end")
  end

  it "else clauses in begin...end" do
    todo("begin; a; rescue => e; b; else; c; end")
  end

  it "retry" do
    todo("retry")
  end

  it "flip-flops" do
    todo("if a..b; end")
  end

  it "implicit matches" do
    todo("if /a/; end")
  end

  it "regular expression back-references" do
    todo("$&")
    todo("$`")
    todo("$'")
    todo("$+")
  end

  unless RUBY_VERSION =~ /^1/
    # NOTE: option {eslevel: es2015} implements this
    it "keyword argument" do
      todo( 'def f(a:nil); end' )
    end
  end
end