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# frozen_string_literal: true
require "spec_helper"
describe Pundit::PolicyFinder do
let(:user) { double }
let(:post) { Post.new(user) }
let(:comment) { CommentFourFiveSix.new }
let(:article) { Article.new }
describe "#scope" do
subject { described_class.new(post) }
it "returns a policy scope" do
expect(subject.scope).to eq PostPolicy::Scope
end
context "policy is nil" do
it "returns nil" do
allow(subject).to receive(:policy).and_return nil
expect(subject.scope).to eq nil
end
end
end
describe "#policy" do
subject { described_class.new(post) }
it "returns a policy" do
expect(subject.policy).to eq PostPolicy
end
context "with a string" do
it "returns a policy" do
allow(subject).to receive(:find).and_return "PostPolicy"
expect(subject.policy).to eq PostPolicy
end
end
context "with a class" do
it "returns a policy" do
allow(subject).to receive(:find).and_return PostPolicy
expect(subject.policy).to eq PostPolicy
end
end
context "with nil" do
it "returns nil" do
allow(subject).to receive(:find).and_return nil
expect(subject.policy).to eq nil
end
end
context "with a string that can't be constantized" do
it "returns nil" do
allow(subject).to receive(:find).and_return "FooPolicy"
expect(subject.policy).to eq nil
end
end
end
describe "#scope!" do
context "@object is nil" do
subject { described_class.new(nil) }
it "returns the NilClass policy's scope class" do
expect(subject.scope!).to eq NilClassPolicy::Scope
end
end
context "@object is defined" do
subject { described_class.new(post) }
it "returns the scope" do
expect(subject.scope!).to eq PostPolicy::Scope
end
end
end
describe "#param_key" do
context "object responds to model_name" do
subject { described_class.new(comment) }
it "returns the param_key" do
expect(subject.object).to respond_to(:model_name)
expect(subject.param_key).to eq "comment_four_five_six"
end
end
context "object is a class" do
subject { described_class.new(Article) }
it "returns the param_key" do
expect(subject.object).not_to respond_to(:model_name)
expect(subject.object).to be_a Class
expect(subject.param_key).to eq "article"
end
end
context "object is an instance of a class" do
subject { described_class.new(article) }
it "returns the param_key" do
expect(subject.object).not_to respond_to(:model_name)
expect(subject.object).not_to be_a Class
expect(subject.object).to be_an_instance_of Article
expect(subject.param_key).to eq "article"
end
end
context "object is an array" do
subject { described_class.new([:project, article]) }
it "returns the param_key for the last element of the array" do
expect(subject.object).not_to respond_to(:model_name)
expect(subject.object).not_to be_a Class
expect(subject.object).to be_an_instance_of Array
expect(subject.param_key).to eq "article"
end
end
end
end
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