Merge pull request #548 from neo4j/test-547

Test escaping for variables using reserved keywords

Author: angrykoala

tests/issues/547.test.ts

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) "Neo4j"
+ * Neo4j Sweden AB [http://neo4j.com]
+ *
+ * This file is part of Neo4j.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import * as Cypher from "../../src";
+import { TestClause } from "../../src/utils/TestClause";
+
+describe("https://github.com/neo4j/cypher-builder/pull/547", () => {
+    test("escaped reserved var name IN in case ... then using index", () => {
+        const testParam = new Cypher.Param("Hello");
+        const reserveVar = new Cypher.NamedVariable("in");
+
+        const caseClause = new Cypher.Case(testParam).when(reserveVar.index(1)).then(new Cypher.Literal(true));
+
+        const queryResult = new TestClause(caseClause).build();
+
+        expect(queryResult.cypher).toMatchInlineSnapshot(`
+"CASE $param0
+    WHEN \`in\`[1] THEN true
+END"
+`);
+
+        expect(queryResult.params).toMatchInlineSnapshot(`
+            {
+              "param0": "Hello",
+            }
+        `);
+    });
+
+    test("escaped reserved var name IN in case ... then using property", () => {
+        const testParam = new Cypher.Param("Hello");
+        const reserveVar = new Cypher.NamedVariable("in");
+
+        const caseClause = new Cypher.Case(testParam).when(reserveVar.property("a")).then(new Cypher.Literal(true));
+
+        const queryResult = new TestClause(caseClause).build();
+
+        expect(queryResult.cypher).toMatchInlineSnapshot(`
+"CASE $param0
+    WHEN \`in\`.a THEN true
+END"
+`);
+
+        expect(queryResult.params).toMatchInlineSnapshot(`
+            {
+              "param0": "Hello",
+            }
+        `);
+    });
+});