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require "spec_helper"
describe Solve::Artifact do
let(:graph) do
package = double("package")
package_version = double("package_version")
package_version.stub(:dependencies).and_return([])
package.stub(:add_version).and_return(package_version)
double("graph", dep_graph: double("dep_graph", package: package))
end
let(:name) { "league" }
let(:version) { "1.0.0" }
subject { Solve::Artifact.new(graph, name, version) }
describe "equality" do
context "given an artifact with the same name and version" do
let(:one) { Solve::Artifact.new(graph, "riot", "1.0.0") }
let(:two) { Solve::Artifact.new(graph, "riot", "1.0.0") }
it "is equal" do
expect(one).to eq(two)
end
end
context "given an artifact with the same name but different version" do
let(:one) { Solve::Artifact.new(graph, "riot", "1.0.0") }
let(:two) { Solve::Artifact.new(graph, "riot", "2.0.0") }
it "is not equal" do
expect(one).to_not eq(two)
end
end
context "given an artifact with the same version but different name" do
let(:one) { Solve::Artifact.new(graph, "riot", "1.0.0") }
let(:two) { Solve::Artifact.new(graph, "league", "1.0.0") }
it "is not equal" do
expect(one).to_not eq(two)
end
end
end
describe "sorting" do
let(:one) { Solve::Artifact.new(graph, "riot", "1.0.0") }
let(:two) { Solve::Artifact.new(graph, "riot", "2.0.0") }
let(:three) { Solve::Artifact.new(graph, "riot", "3.0.0") }
let(:artifacts) do
[
one,
two,
three,
].shuffle
end
it "orders artifacts by their version number" do
sorted = artifacts.sort
expect(sorted[0]).to eq(one)
expect(sorted[1]).to eq(two)
expect(sorted[2]).to eq(three)
end
end
describe "#dependency?" do
before { subject.depends("nginx", "1.0.0") }
it "returns false when the dependency does not exist" do
expect(subject).to have_dependency("nginx", "1.0.0")
end
it "returns true when the dependendency exists" do
expect(subject).to_not have_dependency("apache2", "2.0.0")
end
end
describe "#dependency" do
before { subject.depends("nginx", "~> 1.2.3") }
it "returns an instance of Solve::Dependency matching the given name and constraint" do
dependency = subject.dependency("nginx", "~> 1.2.3")
expect(dependency).to be_a(Solve::Dependency)
expect(dependency.name).to eq("nginx")
expect(dependency.constraint.to_s).to eq("~> 1.2.3")
end
end
describe "#dependencies" do
it "returns an array" do
expect(subject.dependencies).to be_a(Array)
end
it "returns an empty array if no dependencies have been accessed" do
expect(subject.dependencies).to be_empty
end
it "returns all dependencies" do
subject.depends("nginx", "1.0.0")
subject.depends("nginx", "~> 2.0.0")
expect(subject.dependencies.size).to eq(2)
end
end
describe "#depends" do
context "given a name and constraint argument" do
let(:name) { "nginx" }
let(:constraint) { "~> 1.0.0" }
context "given the dependency of the given name and constraint does not exist" do
it "returns a Solve::Artifact" do
expect(subject.depends(name, constraint)).to be_a(Solve::Artifact)
end
it "adds a dependency with the given name and constraint to the list of dependencies" do
subject.depends(name, constraint)
expect(subject.dependencies.size).to eq(1)
expect(subject.dependencies.first.name).to eq(name)
expect(subject.dependencies.first.constraint.to_s).to eq(constraint)
end
end
end
context "given only a name argument" do
it "adds a dependency with a all constraint (>= 0.0.0)" do
subject.depends("nginx")
expect(subject.dependencies.size).to eq(1)
expect(subject.dependencies.first.constraint.to_s).to eq(">= 0.0.0")
end
end
end
end
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