зеркало из https://github.com/github/ruby.git
141 строка
3.4 KiB
Markdown
141 строка
3.4 KiB
Markdown
# spec/bundler
|
|
|
|
spec/bundler is rspec examples for bundler library (`lib/bundler.rb`, `lib/bundler/*`).
|
|
|
|
## Running spec/bundler
|
|
|
|
To run rspec for bundler:
|
|
|
|
```bash
|
|
make test-bundler
|
|
```
|
|
|
|
# spec/ruby
|
|
|
|
ruby/spec (https://github.com/ruby/spec/) is
|
|
a test suite for the Ruby language.
|
|
|
|
Once a month, @eregon merges the in-tree copy under spec/ruby
|
|
with the upstream repository, preserving the commits and history.
|
|
The same happens for other implementations such as JRuby and TruffleRuby.
|
|
|
|
Feel welcome to modify the in-tree spec/ruby.
|
|
This is the purpose of the in-tree copy,
|
|
to facilitate contributions to ruby/spec for MRI developers.
|
|
|
|
New features, additional tests for existing features and
|
|
regressions tests are all welcome in ruby/spec.
|
|
There is very little behavior that is implementation-specific,
|
|
as in the end user programs tend to rely on every behavior MRI exhibits.
|
|
In other words: If adding a spec might reveal a bug in
|
|
another implementation, then it is worth adding it.
|
|
Currently, the only module which is MRI-specific is `RubyVM`.
|
|
|
|
## Changing behavior and versions guards
|
|
|
|
Version guards (`ruby_version_is`) must be added for new features or features
|
|
which change behavior or are removed. This is necessary for other Ruby implementations
|
|
to still be able to run the specs and contribute new specs.
|
|
|
|
For example, change:
|
|
|
|
```ruby
|
|
describe "Some spec" do
|
|
it "some example" do
|
|
# Old behavior for Ruby < 2.7
|
|
end
|
|
end
|
|
```
|
|
|
|
to:
|
|
|
|
```ruby
|
|
describe "Some spec" do
|
|
ruby_version_is ""..."2.7" do
|
|
it "some example" do
|
|
# Old behavior for Ruby < 2.7
|
|
end
|
|
end
|
|
|
|
ruby_version_is "2.7" do
|
|
it "some example" do
|
|
# New behavior for Ruby >= 2.7
|
|
end
|
|
end
|
|
end
|
|
```
|
|
|
|
See `spec/ruby/CONTRIBUTING.md` for more documentation about guards.
|
|
|
|
To verify specs are compatible with older Ruby versions:
|
|
|
|
```bash
|
|
cd spec/ruby
|
|
$RUBY_MANAGER use 2.4.9
|
|
../mspec/bin/mspec -j
|
|
```
|
|
|
|
## Running ruby/spec
|
|
|
|
To run all specs:
|
|
|
|
```bash
|
|
make test-spec
|
|
```
|
|
|
|
Extra arguments can be added via `MSPECOPT`.
|
|
For instance, to show the help:
|
|
|
|
```bash
|
|
make test-spec MSPECOPT=-h
|
|
```
|
|
|
|
You can also run the specs in parallel, which is currently experimental.
|
|
It takes around 10s instead of 60s on a quad-core laptop.
|
|
|
|
```bash
|
|
make test-spec MSPECOPT=-j
|
|
```
|
|
|
|
To run a specific test, add its path to the command:
|
|
|
|
```bash
|
|
make test-spec MSPECOPT=spec/ruby/language/for_spec.rb
|
|
```
|
|
|
|
If ruby trunk is your current `ruby` in `$PATH`, you can also run `mspec` directly:
|
|
|
|
```bash
|
|
# change ruby to trunk
|
|
ruby -v # => trunk
|
|
spec/mspec/bin/mspec spec/ruby/language/for_spec.rb
|
|
```
|
|
|
|
## ruby/spec and test/
|
|
|
|
The main difference between a "spec" under `spec/ruby/` and
|
|
a test under `test/` is that specs are documenting what they test.
|
|
This is extremely valuable when reading these tests, as it
|
|
helps to quickly understand what specific behavior is tested,
|
|
and how a method should behave. Basic English is fine for spec descriptions.
|
|
Specs also tend to have few expectations (assertions) per spec,
|
|
as they specify one aspect of the behavior and not everything at once.
|
|
Beyond that, the syntax is slightly different but it does the same thing:
|
|
`assert_equal 3, 1+2` is just `(1+2).should == 3`.
|
|
|
|
Example:
|
|
|
|
```ruby
|
|
describe "The for expression" do
|
|
it "iterates over an Enumerable passing each element to the block" do
|
|
j = 0
|
|
for i in 1..3
|
|
j += i
|
|
end
|
|
j.should == 6
|
|
end
|
|
end
|
|
```
|
|
|
|
For more details, see `spec/ruby/CONTRIBUTING.md`.
|