test: change test to use yaml file instead

pkg/policy/policy_test.go

@@ -33,7 +33,7 @@ func loadAttestation(t *testing.T, path string) *attestation.Envelope {
 func TestRegoEvaluator_Evaluate(t *testing.T) {
 	ctx, _ := test.Setup(t)
 	resolveErrorStr := "failed to resolve policy by id: policy with id non-existent-policy-id not found"
-	evalErrorStr := "rego_parse_error:"
+	evalErrorStr := "no policy evaluation result"
 	TestDataPath := filepath.Join("..", "..", "test", "testdata")
 	ExampleAttestation := filepath.Join(TestDataPath, "example_attestation.json")
 

pkg/policy/testdata/mock-tuf-no-rego/doi/policy.not-rego

@@ -1 +0,0 @@
-this isn't a rego policy

pkg/policy/testdata/mock-tuf-no-rego/doi/policy.yaml

@@ -0,0 +1 @@
+policy: "this is not rego"

pkg/policy/testdata/mock-tuf-no-rego/mapping.yaml

@@ -5,7 +5,7 @@ policies:
   - id: docker-official-images
     description: Docker Official Images
     files:
-      - path: doi/policy.not-rego
+      - path: doi/policy.yaml
 rules:
   - pattern: "^docker[.]io/library/(.*)$"
     policy-id: docker-official-images