Cucumber
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raises a Cucumber::Ambiguous if more than one step definitions match a step.
Our new cucumber_priority Show archive.org snapshot gem provides a way to mark step definitions as overridable, meaning that they can always be overshadowed by a more specific version without raising an error.
This gem is currently used by spreewald Show archive.org snapshot and cucumber_factory Show archive.org snapshot .
Marking step definitions as overridable
To mark a step definition as overridable, call #overridable on the definition object:
Given /^there is a movie with a (.*?) tone$/ do
...
end.overridable
Given there is a movie with a funny tone do
...
end
The following step will now no longer raise Cucumber::Ambiguous:
Given there is a movie with a funny tone
If a step matches more than one non-overridable steps, Cucumber will still raise Cucumber::Ambiguous.
Defining priorities
You can define priorities for overridable steps by passing an numeric :priority option to #overridable:
Given /^there is a movie with a (.*?) tone$/ do
...
end.overridable(priority: 1)
Given /^there is a movie with a (sad|upbeat|disturbing) tone$/ do
...
end.overridable(priority: 5)
A higher priority wins the match.
A non-overridable step will always win over an overridable step regardless of its priority.
