Gem install rspec expectations contributing.
Ruby rspec expect to match.
If you want to use rspec expectations with another tool like test unit minitest or cucumber you can install it directly.
Require rspec autorun describe factorial do.
If you want to use rspec expectations with rspec just install the rspec gem and rubygems will also install rspec expectations for you along with rspec core and rspec mocks.
Match マッチャ は match メソッドを使って比較します match matcher built in matchers rspec expectations rspec relish.
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You need to require the rspec gem.
Describe factorial do it does something do.
Rspec ruby complexed nested hash arguments fuzzy match use expect receive syntax and with matcher.
Once you ve set up the environment you ll need to cd into the working directory of whichever repo you want to work in.
They provide generic case equality pattern matching operator which is one of nicest and most underused ruby.
See using should syntax for why we recommend using expect.
End this is the initial code for writing your first rspec test.
Rspec describe a string do it is expected to match str it is expected not to match foo deliberate failures it is expected not to match str it.
Then you need to create a describe block to group all your tests together to tell rspec which class you are testing.
Each matcher can be used with expect to or expect not to to define positive and negative expectations respectively on an object.
Rspec expectations ships with a number of built in matchers.
Rspec expectations lets you express expected outcomes on an object in an example.
All of this is possible because of rspec matchers composability they are designed to play well when combined.