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package_name_spec.rb
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package_name_spec.rb
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# typed: true
# frozen_string_literal: true
require "spec_helper"
require "dependabot/npm_and_yarn/package_name"
RSpec.describe Dependabot::NpmAndYarn::PackageName do
describe "initialization" do
it "allows valid package names" do
expect { described_class.new("some-package") }.not_to raise_error
expect { described_class.new("example.com") }.not_to raise_error
expect { described_class.new("under_score") }.not_to raise_error
expect { described_class.new("123numeric") }.not_to raise_error
expect { described_class.new("@npm/thingy") }.not_to raise_error
expect { described_class.new("@jane/foo.js") }.not_to raise_error
expect { described_class.new("@_foo/bar") }.not_to raise_error
end
it "raises an error for invalid package names" do
expect { described_class.new("") }.to raise_error(described_class::InvalidPackageName)
expect { described_class.new(".leading-dot") }.to raise_error(described_class::InvalidPackageName)
expect do
described_class.new(" leading-space:and:weirdchars")
end.to raise_error(described_class::InvalidPackageName)
expect { described_class.new("馃し") }.to raise_error(described_class::InvalidPackageName)
expect { described_class.new(nil) }.to raise_error(TypeError)
expect { described_class.new([]) }.to raise_error(TypeError)
expect { described_class.new({}) }.to raise_error(TypeError)
end
end
describe "#to_s" do
it "returns the name when no scope is present" do
jquery = "jquery"
package_name = described_class.new(jquery).to_s
expect(package_name).to eq(jquery)
end
it "returns the name with scope when a scope is present" do
babel_core = "@babel/core"
package_name_with_scope = described_class.new(babel_core).to_s
expect(package_name_with_scope).to eq(babel_core)
end
end
describe "#types_package_name" do
it "returns the corresponding types package name" do
lodash = "lodash"
lodash_types = "@types/lodash"
types_package_name = described_class.new(lodash).types_package_name
expect(types_package_name.to_s).to eq(lodash_types)
end
it "returns nil if it is already a types package" do
stereo_types = "@types/stereo"
types_package_name = described_class.new(stereo_types).types_package_name
expect(types_package_name).to be_nil
end
context "when given a scoped dependency name" do
it "returns the corresponding scoped types package name" do
babel_core = "@babel/core"
babel_core_types = "@types/babel__core"
types_package_name = described_class.new(babel_core).types_package_name
expect(types_package_name.to_s).to eq(babel_core_types)
end
end
end
describe "#library_name" do
it "returns nil if it is not a types package" do
expect(described_class.new("jquery").library_name).to be_nil
expect(described_class.new("@babel/core").library_name).to be_nil
expect(described_class.new("@typescript-eslint/parser").library_name).to be_nil
end
it "returns the corresponding library for a types package" do
lodash_types = "@types/lodash"
lodash = "lodash"
library_name = described_class.new(lodash_types).library_name
expect(library_name.to_s).to eq(lodash)
end
context "when it is a scoped types package" do
it "returns the type packages scoped name" do
babel_core_types = "@types/babel__core"
babel_core = "@babel/core"
library_name = described_class.new(babel_core_types).library_name
expect(library_name.to_s).to eq(babel_core)
end
end
end
describe "#eql?" do
it "compares the string representation of the package name" do
package = described_class.new("package")
package_again = described_class.new("package")
equality_check = package.eql?(package_again)
expect(equality_check).to be true
end
it "returns true for equivalent package names" do
react = described_class.new("react")
react_again = described_class.new("react")
equality_check = react.eql?(react_again)
expect(equality_check).to be true
end
it "returns false for non-equivalent package names" do
react = described_class.new("react")
vue = described_class.new("vue")
equality_check = react.eql?(vue)
expect(equality_check).to be false
end
end
describe "#<=>" do
it "provides affordances for sorting/comparison" do
first = described_class.new("first")
second = described_class.new("second")
third = described_class.new("third")
expect([third, second, first].sort).to eq([first, second, third])
end
it "ignores case" do
package_name_string = "jquery"
all_caps = described_class.new(package_name_string.upcase)
all_lower = described_class.new(package_name_string.downcase)
expect(all_lower <=> all_caps).to be_zero
end
it "allows for comparison with types packages" do
library = described_class.new("my-library")
expect([library, library.types_package_name].sort)
.to eq([library.types_package_name, library])
end
end
end