1 files changed, 190 insertions, 0 deletions
diff --git a/spec/support/shared_examples/requests/api/npm_packages_tags_shared_examples.rb b/spec/support/shared_examples/requests/api/npm_packages_tags_shared_examples.rb
new file mode 100644
index 00000000000..e6b3dc74b74
--- /dev/null
+++ b/spec/support/shared_examples/requests/api/npm_packages_tags_shared_examples.rb
@@ -0,0 +1,190 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'rejects package tags access' do |status:|
+  before do
+    package.update!(name: package_name) unless package_name == 'non-existing-package'
+  end
+
+  it_behaves_like 'returning response status', status
+end
+
+RSpec.shared_examples 'accept package tags request' do |status:|
+  using RSpec::Parameterized::TableSyntax
+
+  before do
+    stub_application_setting(npm_package_requests_forwarding: false)
+  end
+
+  context 'with valid package name' do
+    before do
+      package.update!(name: package_name) unless package_name == 'non-existing-package'
+    end
+
+    it_behaves_like 'returning response status', status
+
+    it 'returns a valid json response' do
+      subject
+
+      expect(response.media_type).to eq('application/json')
+      expect(json_response).to be_a(Hash)
+    end
+
+    it 'returns two package tags' do
+      subject
+
+      expect(json_response).to match_schema('public_api/v4/packages/npm_package_tags')
+      expect(json_response.length).to eq(3) # two tags + latest (auto added)
+      expect(json_response[package_tag1.name]).to eq(package.version)
+      expect(json_response[package_tag2.name]).to eq(package.version)
+      expect(json_response['latest']).to eq(package.version)
+    end
+  end
+
+  context 'with invalid package name' do
+    where(:package_name, :status) do
+      '%20' | :bad_request
+      nil   | :not_found
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+end
+
+RSpec.shared_examples 'accept create package tag request' do |user_type|
+  using RSpec::Parameterized::TableSyntax
+
+  context 'with valid package name' do
+    before do
+      package.update!(name: package_name) unless package_name == 'non-existing-package'
+    end
+
+    it_behaves_like 'returning response status', :no_content
+
+    it 'creates the package tag' do
+      expect { subject }.to change { Packages::Tag.count }.by(1)
+
+      last_tag = Packages::Tag.last
+      expect(last_tag.name).to eq(tag_name)
+      expect(last_tag.package).to eq(package)
+    end
+
+    it 'returns a valid response' do
+      subject
+
+      expect(response.body).to be_empty
+    end
+
+    context 'with already existing tag' do
+      let_it_be(:package2) { create(:npm_package, project: project, name: package.name, version: '5.5.55') }
+      let_it_be(:tag) { create(:packages_tag, package: package2, name: tag_name) }
+
+      it_behaves_like 'returning response status', :no_content
+
+      it 'reuses existing tag' do
+        expect(package.tags).to be_empty
+        expect(package2.tags).to eq([tag])
+        expect { subject }.to not_change { Packages::Tag.count }
+        expect(package.reload.tags).to eq([tag])
+        expect(package2.reload.tags).to be_empty
+      end
+
+      it 'returns a valid response' do
+        subject
+
+        expect(response.body).to be_empty
+      end
+    end
+  end
+
+  context 'with invalid package name' do
+    where(:package_name, :status) do
+      'unknown' | :not_found
+      ''        | :not_found
+      '%20'     | :bad_request
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+
+  context 'with invalid tag name' do
+    where(:tag_name, :status) do
+      ''    | :not_found
+      '%20' | :bad_request
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+
+  context 'with invalid version' do
+    where(:version, :status) do
+      ' '   | :bad_request
+      ''    | :bad_request
+      nil   | :bad_request
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+end
+
+RSpec.shared_examples 'accept delete package tag request' do |user_type|
+  using RSpec::Parameterized::TableSyntax
+
+  context 'with valid package name' do
+    before do
+      package.update!(name: package_name) unless package_name == 'non-existing-package'
+    end
+
+    it_behaves_like 'returning response status', :no_content
+
+    it 'returns a valid response' do
+      subject
+
+      expect(response.body).to be_empty
+    end
+
+    it 'destroy the package tag' do
+      expect(package.tags).to eq([package_tag])
+      expect { subject }.to change { Packages::Tag.count }.by(-1)
+      expect(package.reload.tags).to be_empty
+    end
+
+    context 'with tag from other package' do
+      let(:package2) { create(:npm_package, project: project) }
+      let(:package_tag) { create(:packages_tag, package: package2) }
+
+      it_behaves_like 'returning response status', :not_found
+    end
+  end
+
+  context 'with invalid package name' do
+    where(:package_name, :status) do
+      'unknown' | :not_found
+      ''        | :not_found
+      '%20'     | :bad_request
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+
+  context 'with invalid tag name' do
+    where(:tag_name, :status) do
+      'unknown' | :not_found
+      ''        | :not_found
+      '%20'     | :bad_request
+    end
+
+    with_them do
+      it_behaves_like 'returning response status', params[:status]
+    end
+  end
+end