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require "spec_helper"
describe Solve::Demand do
let(:solver) { double("solver") }
let(:name) { "league" }
describe "#initialize" do
it "accepts a string for the constraint parameter" do
demand = Solve::Demand.new(solver, name, "= 0.0.1")
expect(demand.constraint.to_s).to eq("= 0.0.1")
end
it "accepts a Semverse::Constraint for the constraint parameter" do
constraint = Semverse::Constraint.new("= 0.0.1")
demand = Solve::Demand.new(solver, name, constraint)
expect(demand.constraint).to eq(constraint)
end
context "when no value for 'constraint' is given" do
it "uses a default of >= 0.0.0" do
demand = Solve::Demand.new(solver, name)
expect(demand.constraint.operator).to eq(">=")
expect(demand.constraint.version.to_s).to eq("0.0.0")
end
end
end
let(:constraint) { "~> 1.0.0" }
subject { Solve::Demand.new(solver, name, constraint) }
describe "equality" do
it "returns true when other is a Solve::Demand with the same name and constriant" do
other = Solve::Demand.new(solver, name, constraint)
expect(subject).to eq(other)
end
it "returns false when other isn't a Solve::Demand" do
expect(subject).to_not eq("chicken")
end
it "returns false when other is a Solve::Demand with the same name but a different constraint" do
other = Solve::Demand.new(solver, name, "< 3.4.5")
expect(subject).to_not eq(other)
end
it "returns false when other is a Solve::Demand with the same constraint but a different name" do
other = Solve::Demand.new(solver, "chicken", constraint)
expect(subject).to_not eq(other)
end
end
end
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