1 files changed, 76 insertions, 0 deletions
diff --git a/spec/lib/sbom/package_url/normalizer_spec.rb b/spec/lib/sbom/package_url/normalizer_spec.rb
new file mode 100644
index 00000000000..bbc2bd3ca13
--- /dev/null
+++ b/spec/lib/sbom/package_url/normalizer_spec.rb
@@ -0,0 +1,76 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require 'rspec-parameterized'
+
+require_relative '../../../support/shared_contexts/lib/sbom/package_url_shared_contexts'
+
+RSpec.describe Sbom::PackageUrl::Normalizer do
+  shared_examples 'name normalization' do
+    context 'with bitbucket url' do
+      let(:type) { 'bitbucket' }
+      let(:text) { 'Purl_Spec' }
+
+      it 'downcases text' do
+        is_expected.to eq('purl_spec')
+      end
+    end
+
+    context 'with github url' do
+      let(:type) { 'github' }
+      let(:text) { 'Purl_Spec' }
+
+      it 'downcases text' do
+        is_expected.to eq('purl_spec')
+      end
+    end
+
+    context 'with pypi url' do
+      let(:type) { 'pypi' }
+      let(:text) { 'Purl_Spec' }
+
+      it 'downcases text and replaces underscores' do
+        is_expected.to eq('purl-spec')
+      end
+    end
+
+    context 'with other urls' do
+      let(:type) { 'npm' }
+      let(:text) { 'Purl_Spec' }
+
+      it 'does not change the text' do
+        is_expected.to eq(text)
+      end
+    end
+  end
+
+  describe '#normalize_name' do
+    subject(:normalize_name) { described_class.new(type: type, text: text).normalize_name }
+
+    it_behaves_like 'name normalization'
+
+    context 'when text is nil' do
+      let(:type) { 'npm' }
+      let(:text) { nil }
+
+      it 'raises an error' do
+        expect { normalize_name }.to raise_error(ArgumentError, 'Name is required')
+      end
+    end
+  end
+
+  describe '#normalize_namespace' do
+    subject(:normalize_namespace) { described_class.new(type: type, text: text).normalize_namespace }
+
+    it_behaves_like 'name normalization'
+
+    context 'when text is nil' do
+      let(:type) { 'npm' }
+      let(:text) { nil }
+
+      it 'allows nil values' do
+        expect(normalize_namespace).to be_nil
+      end
+    end
+  end
+end