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https://github.com/siepomaga/rspec-let_fallback
RSpec extension gem that allows to read let with fallback (if not defined yet in example group).
https://github.com/siepomaga/rspec-let_fallback
rails rails-rspec rspec ruby tdd
Last synced: 3 months ago
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RSpec extension gem that allows to read let with fallback (if not defined yet in example group).
- Host: GitHub
- URL: https://github.com/siepomaga/rspec-let_fallback
- Owner: Siepomaga
- License: mit
- Created: 2020-10-13T17:38:01.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2023-03-16T07:18:42.000Z (almost 2 years ago)
- Last Synced: 2024-09-17T03:35:47.367Z (4 months ago)
- Topics: rails, rails-rspec, rspec, ruby, tdd
- Language: Ruby
- Homepage:
- Size: 26.4 KB
- Stars: 6
- Watchers: 1
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project
README
# RSpec::LetFallback
RSpec extension gem that allows to read let with fallback (if not defined yet in example group).
[](https://badge.fury.io/rb/rspec-let_fallback)
[](https://codecov.io/gh/siepomaga/rspec-let_fallback)
[](https://github.com/siepomaga/rspec-let_fallback/actions)
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'rspec-let_fallback'
```
And then execute:
$ bundle install
Or install it yourself as:
$ gem install rspec-let_fallback
After installation add the following configuration to `spec/spec_helper.rb`.
```ruby
RSpec.configure do |config|
config.include RSpec::LetFallback::Methods
end
```
And You are ready to go!
## Usage
Use the `let?` method to access variables, both, already defined, or their fallback values.
`let?` accepts two parameters, first is the desired variable name, and second one is the fallback value.
```ruby
let(:some_object) do
{
first_field: let?(:defined_one, 1),
second_field: let?(:defined_two, "string"),
}
end
# Fallback values
it { expect(some_object).to eq({ first_field: 1, second_field: "string" }) }
# Overriding first field
context "with defined_one" do
let(:defined_one) { 103 }
it { expect(some_object).to eq({ first_field: 103, second_field: "string" }) }
end
# Overriding second field
context "with defined_two" do
let(:defined_two) { true }
it { expect(some_object).to eq({ first_field: 1, second_field: true }) }
end
```
You can use `let?` inside `example group` elements, for example inside `let`, `let!` and `subject` blocks.
As a single value or as values in hash as shown in example.
## Development
After checking out the repo, run `bin/setup` to install dependencies. Then, run `bundle exec rake spec` to run the tests.
You can also run `bin/console` for an interactive prompt that will allow you to experiment.
For Apprisal tests (against multiple `rspec-core` versions) run `bundle exec appraisal install` and then `bundle exec appraisal rspec`.
To install this gem onto your local machine, run `bundle exec rake install`.
To release a new version, update the version number in `version.rb`, and then prepare pull request on github.
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/siepomaga/rspec-let_fallback. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/siepomaga/rspec-let_fallback/blob/master/CODE_OF_CONDUCT.md).
## License
The gem is available as open source under the terms of the [MIT License](https://github.com/siepomaga/rspec-let_fallback/blob/master/LICENSE.txt).
## Code of Conduct
Everyone interacting in the RSpec::LetFallback project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/siepomaga/rspec-let_fallback/blob/master/CODE_OF_CONDUCT.md).
## Contributors
[whitemerry](https://github.com/whitemerry) and [krismichalski](https://github.com/krismichalski)