From d0aa219652dff01351529a93154917cf5ff4e961 Mon Sep 17 00:00:00 2001
From: Erik Krogh Kristensen <erik-krogh@github.com>
Date: Fri, 15 Oct 2021 19:46:51 +0200
Subject: [PATCH] add an consistency test for the totality of `getParent()`

---
 ql/consistency-queries/AstConsistency.ql | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 ql/consistency-queries/AstConsistency.ql

diff --git a/ql/consistency-queries/AstConsistency.ql b/ql/consistency-queries/AstConsistency.ql
new file mode 100644
index 00000000000..773b6c8b898
--- /dev/null
+++ b/ql/consistency-queries/AstConsistency.ql
@@ -0,0 +1,10 @@
+import ql
+private import codeql_ql.ast.internal.AstNodes as AstNodes
+
+query AstNode nonTotalGetParent() {
+  exists(AstNodes::toQL(result).getParent()) and
+  not exists(result.getParent()) and
+  not result.getLocation().getStartColumn() = 1 and // startcolumn = 1 <=> top level in file <=> fine to have no parent
+  not result instanceof YAML::YAMLNode and // parents for YAML doens't work
+  not (result instanceof QLDoc and result.getLocation().getFile().getExtension() = "dbscheme") // qldoc in dbschemes are not hooked up
+}