20 lines
773 B
Ruby
20 lines
773 B
Ruby
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# These matchers are a syntactic hack to provide more readable expectations for
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# an Enumerable object.
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#
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# They take advantage of the `all?`, `none?`, and `one?` methods, and the fact
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# that RSpec provides a `be_something` matcher for all predicates.
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#
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# Example:
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#
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# # Ensure exactly one object in an Array satisfies a condition
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# expect(users.one? { |u| u.admin? }).to eq true
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#
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# # The same thing, but using the `be_one` matcher
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# expect(users).to be_one { |u| u.admin? }
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#
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# # The same thing again, but using `satisfy_one` for improved readability
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# expect(users).to satisfy_one { |u| u.admin? }
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RSpec::Matchers.alias_matcher :satisfy_all, :be_all
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RSpec::Matchers.alias_matcher :satisfy_none, :be_none
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RSpec::Matchers.alias_matcher :satisfy_one, :be_one
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