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# frozen_string_literal: true
RSpec.describe Dry::Logic::Operations::And do
subject(:operation) { described_class.new(left, right) }
include_context "predicates"
let(:left) { Dry::Logic::Rule::Predicate.build(int?) }
let(:right) { Dry::Logic::Rule::Predicate.build(gt?).curry(18) }
describe "#call" do
it "calls left and right" do
expect(operation.(18)).to be_failure
end
end
describe "#to_ast" do
it "returns ast" do
expect(operation.to_ast).to eql(
[:and, [[:predicate, [:int?, [[:input, undefined]]]], [:predicate, [:gt?, [[:num, 18], [:input, undefined]]]]]]
)
end
it "returns result ast" do
expect(operation.("18").to_ast).to eql(
[:and, [[:predicate, [:int?, [[:input, "18"]]]], [:hint, [:predicate, [:gt?, [[:num, 18], [:input, "18"]]]]]]]
)
expect(operation.with(hints: false).("18").to_ast).to eql(
[:predicate, [:int?, [[:input, "18"]]]]
)
expect(operation.(18).to_ast).to eql(
[:predicate, [:gt?, [[:num, 18], [:input, 18]]]]
)
end
it "returns failure result ast" do
expect(operation.with(id: :age).("18").to_ast).to eql(
[:failure, [:age, [:and, [[:predicate, [:int?, [[:input, "18"]]]], [:hint, [:predicate, [:gt?, [[:num, 18], [:input, "18"]]]]]]]]]
)
expect(operation.with(id: :age).(18).to_ast).to eql(
[:failure, [:age, [:predicate, [:gt?, [[:num, 18], [:input, 18]]]]]]
)
end
end
describe "#and" do
let(:other) { Dry::Logic::Rule::Predicate.build(lt?).curry(30) }
it "creates and with the other" do
expect(operation.and(other).(31)).to be_failure
end
end
describe "#or" do
let(:other) { Dry::Logic::Rule::Predicate.build(lt?).curry(14) }
it "creates or with the other" do
expect(operation.or(other).(13)).to be_success
end
end
describe "#to_s" do
it "returns string representation" do
expect(operation.to_s).to eql("int? AND gt?(18)")
end
end
end
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