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RSpec.describe "Contracts:" do
describe "method called with blocks" do
module FuncTest
include Contracts::Core
include Contracts::Builtin
Contract Func[Num=>Num] => nil
def foo(&blk)
_ = blk.call(2)
nil
end
Contract Num, Func[Num=>Num] => nil
def foo2(a, &blk)
_ = blk.call(2)
nil
end
Contract Func[Num=>Num] => nil
def bar(blk)
_ = blk.call(2)
nil
end
Contract Num, Func[Num=>Num] => nil
def bar2(a, blk)
_ = blk.call(2)
nil
end
end
def obj
Object.new.tap do |o|
o.extend(FuncTest)
end
end
it "should enforce return value inside block with no other parameter" do
expect { obj.foo(&:to_s) }.to raise_error ReturnContractError
end
it "should enforce return value inside block with other parameter" do
expect { obj.foo2(2) { |x| x.to_s } }.to raise_error ReturnContractError
end
it "should enforce return value inside lambda with no other parameter" do
expect { obj.bar lambda { |x| x.to_s } }.to raise_error ReturnContractError
end
it "should enforce return value inside lambda with other parameter" do
expect { obj.bar2(2, lambda { |x| x.to_s }) }.to raise_error ReturnContractError
end
end
end
|
