test: add unknown field test cases

Signed-off-by: Fernando Cainelli <[email protected]>

internal/pkg/parser/testcase_test.go

@@ -7,6 +7,11 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func TestUnknownField(t *testing.T) {
+	_, err := ParseTestCases([]string{"testdata/invalid_test.yml"}, true)
+	require.ErrorContains(t, err, "json: unknown field")
+}
+
 func TestParseTestCases(t *testing.T) {
 	expectedTestCases := []*TestCase{
 		{Description: "happy path users"},
@@ -27,7 +32,6 @@ func TestParseTestCases(t *testing.T) {
 		if !testPass {
 			t.Errorf("could not find expected description:'%v'", expected.Description)
 		}
-
 	}
 }
 

internal/pkg/parser/testdata/invalid_test.yml

@@ -0,0 +1,16 @@
+testCases:
+  - description: a test
+    unknownField: true # not a valid field
+    wantMatch: true
+    request:
+      authority:
+        - www.example.com
+      method:
+        - GET
+      uri:
+        - /users
+    route:
+    - destination:
+        host: users.users.svc.cluster.local
+        port:
+          number: 80

internal/pkg/parser/testdata/invalid_vs.yml

@@ -0,0 +1,18 @@
+apiVersion: networking.istio.io/v1
+kind: VirtualService
+metadata:
+  name: example
+  namespace: example
+spec:
+  unknownField: true # not a valid field
+  hosts:
+    - www.example.com
+  http:
+    - match:
+        - uri:
+            regex: /users(/.*)?
+      route:
+        - destination:
+            host: users.users.svc.cluster.local
+            port:
+              number: 80

internal/pkg/parser/virtualservice_test.go

@@ -42,3 +42,8 @@ func TestParseMultipleVirtualServices(t *testing.T) {
 		}
 	}
 }
+
+func TestVirtualServiceUnknownFields(t *testing.T) {
+	_, err := ParseVirtualServices([]string{}, true)
+	require.ErrorContains(t, err, "json: unknown field")
+}