Run tests using reference data from purl-spec

.github/workflows/test.yaml

@@ -14,9 +14,8 @@ jobs:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code
         uses: actions/checkout@v4
-      - name: Download test data
-        # TODO(@shibumi): Remove pinned version and reset to master, once the failing npm test-cases got fixed.
-        run: curl -L https://raw.githubusercontent.com/package-url/purl-spec/0dd92f26f8bb11956ffdf5e8acfcee71e8560407/test-suite-data.json -o testdata/test-suite-data.json
+        with:
+          submodules: true
       - name: Test go fmt
         run: test -z $(go fmt ./...)
       - name: Golangci-lint

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "testdata/purl-spec"]
+	path = testdata/purl-spec
+	url = https://github.com/package-url/purl-spec

Makefile

@@ -1,7 +1,8 @@
 .PHONY: test clean lint
 
 test:
-	curl -Ls https://raw.githubusercontent.com/package-url/purl-spec/master/test-suite-data.json -o testdata/test-suite-data.json
+	git submodule update --init
+	git submodule update --remote
 	go test -v -cover ./...
 
 fuzz: