First TCK test for Cypher directives

Author: jexp

src/test/kotlin/org/neo4j/graphql/CypherDirectiveTest.kt

@@ -88,7 +88,7 @@ schema {
     }
 
 
-    @Test @Ignore
+    @Test
     fun testTck() {
         TckTest(schema).testTck("cypher-directive-test.md", 0)
     }

src/test/resources/cypher-directive-test.md

@@ -0,0 +1,31 @@
+## Cypher Directive Test 
+
+```schema
+
+```
+
+### Simple Cypher Directive on Field
+
+```graphql
+{ person { name }}
+```
+```params
+{}
+```
+```cypher
+MATCH (person:Person) 
+RETURN person { name:apoc.cypher.runFirstColumnSingle('WITH $this AS this RETURN this.name',{this:person}) } AS person
+```
+
+
+
+```graphql
+{ person { name }}
+```
+```params
+{}
+```
+```cypher
+MATCH (person:Person) 
+RETURN person { name:apoc.cypher.runFirstColumnSingle('WITH $this AS this RETURN this.name',{this:person}) } AS person
+```