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101 lines
4.7 KiB
Markdown
101 lines
4.7 KiB
Markdown
# The Ruby Spec Suite
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[](https://travis-ci.org/ruby/spec)
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[](https://ci.appveyor.com/project/eregon/spec-x948i)
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[](https://gitter.im/ruby/spec)
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The Ruby Spec Suite is a test suite for the behavior of the Ruby programming language.
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It is not a standardized specification like the ISO one, and does not aim to become one.
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Instead, it is a practical tool to describe and test the behavior of Ruby with code.
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Every example code has a textual description, which presents several advantages:
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* It is easier to understand the intent of the author
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* It documents how recent versions of Ruby should behave
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* It helps Ruby implementations to agree on a common behavior
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The specs are written with syntax similar to RSpec 2.
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They are run with MSpec, the purpose-built framework for running the Ruby Spec Suite.
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For more information, see the [MSpec](http://github.com/ruby/mspec) project.
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The specs describe the [language syntax](language/), the [core library](core/), the [standard library](library/), the [C API for extensions](optional/capi) and the [command line flags](command_line/).
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The language specs are grouped by keyword while the core and standard library specs are grouped by class and method.
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ruby/spec is known to be tested in these implementations for every commit:
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* [MRI](http://rubyci.org/) on 30 platforms and 4 versions
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* [JRuby](https://github.com/jruby/jruby/tree/master/spec/ruby) for both 1.7 and 9.x
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* [TruffleRuby](https://github.com/oracle/truffleruby/tree/master/spec/ruby)
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* [Opal](https://github.com/opal/opal/tree/master/spec)
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The specs are synchronized both ways around once a month by @eregon between ruby/spec, MRI, JRuby and TruffleRuby.
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Each of these repositories has a full copy of the files to ease editing specs.
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ruby/spec describes the behavior of Ruby 2.3 and more recent Ruby versions.
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More precisely, every latest stable MRI release [passes](https://rubyci.org/) all specs of ruby/spec
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(2.3.x, 2.4.x, 2.5.x, etc).
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For older specs try these commits:
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* Ruby 2.0.0-p647 - [Suite](https://github.com/ruby/spec/commit/245862558761d5abc676843ef74f86c9bcc8ea8d) using [MSpec](https://github.com/ruby/mspec/commit/f90efa068791064f955de7a843e96e2d7d3041c2) (may encounter 2 failures)
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* Ruby 2.1.9 - [Suite](https://github.com/ruby/spec/commit/f029e65241374386077ac500add557ae65069b55) using [MSpec](https://github.com/ruby/mspec/commit/55568ea3918c6380e64db8c567d732fa5781efed)
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* Ruby 2.2.10 - [Suite](https://github.com/ruby/spec/commit/cbaa0e412270c944df0c2532fc500c920dba0e92) using [MSpec](https://github.com/ruby/mspec/commit/d84d7668449e96856c5f6bac8cb1526b6d357ce3)
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### Running the specs
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First, clone this repository:
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$ git clone https://github.com/ruby/spec.git
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Then move to it:
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$ cd spec
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Clone [MSpec](http://github.com/ruby/mspec):
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$ git clone https://github.com/ruby/mspec.git ../mspec
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And run the spec suite:
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$ ../mspec/bin/mspec
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This will execute all the specs using the executable named `ruby` on your current PATH.
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### Running Specs with a Specific Ruby Implementation
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Use the `-t` option to specify the Ruby implementation with which to run the specs.
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The argument may be a full path to the Ruby binary.
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$ ../mspec/bin/mspec -t /path/to/some/bin/ruby
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### Running Selected Specs
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To run a single spec file, pass the filename to `mspec`:
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$ ../mspec/bin/mspec core/kernel/kind_of_spec.rb
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You can also pass a directory, in which case all specs in that directories will be run:
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$ ../mspec/bin/mspec core/kernel
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Finally, you can also run them per group as defined in `default.mspec`.
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The following command will run all language specs:
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$ ../mspec/bin/mspec :language
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In similar fashion, the following commands run the respective specs:
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$ ../mspec/bin/mspec :core
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$ ../mspec/bin/mspec :library
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$ ../mspec/bin/mspec :capi
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### Contributing
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See [CONTRIBUTING.md](https://github.com/ruby/spec/blob/master/CONTRIBUTING.md).
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### History and RubySpec
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This project was originally born from [Rubinius](https://github.com/rubinius/rubinius) tests being converted to the spec style.
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These specs were later extracted to their own project, RubySpec, with a specific vision and principles.
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At the end of 2014, Brian Shirai, the creator of RubySpec, decided to [end RubySpec](http://rubinius.com/2014/12/31/matz-s-ruby-developers-don-t-use-rubyspec/).
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A couple months later, the different repositories were merged and [the project was revived](http://eregon.github.io/rubyspec/2015/07/29/rubyspec-is-reborn.html).
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On 12 January 2016, the name was changed to "The Ruby Spec Suite" for clarity and to let the RubySpec ideology rest in peace.
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