added missing test coverage

Signed-off-by: quobix <dave@quobix.com>

what-changed/model/operation_test.go

@@ -1675,3 +1675,32 @@ parameters:
 	assert.Len(t, extChanges.GetAllChanges(), 1)
 	assert.Equal(t, 1, extChanges.TotalBreakingChanges())
 }
+
+func TestComparePathItem_V2_AddRequiredParam(t *testing.T) {
+
+	left := `operationId: listBurgerDressings`
+
+	right := `operationId: listBurgerDressings
+parameters:
+  - in: head
+    name: burgerId
+    required: true`
+
+	var lNode, rNode yaml.Node
+	_ = yaml.Unmarshal([]byte(left), &lNode)
+	_ = yaml.Unmarshal([]byte(right), &rNode)
+
+	// create low level objects
+	var lDoc v2.Operation
+	var rDoc v2.Operation
+	_ = low.BuildModel(lNode.Content[0], &lDoc)
+	_ = low.BuildModel(rNode.Content[0], &rDoc)
+	_ = lDoc.Build(context.Background(), nil, lNode.Content[0], nil)
+	_ = rDoc.Build(context.Background(), nil, rNode.Content[0], nil)
+
+	// compare.
+	extChanges := CompareOperations(&lDoc, &rDoc)
+	assert.Equal(t, 1, extChanges.TotalChanges())
+	assert.Len(t, extChanges.GetAllChanges(), 1)
+	assert.Equal(t, 1, extChanges.TotalBreakingChanges())
+}