From bb84c28aeb52796f864e8986ba1c7034c24ddbb2 Mon Sep 17 00:00:00 2001
From: Chris Skardon <cskardon@xclave.co.uk>
Date: Fri, 5 Dec 2014 10:11:19 +0000
Subject: [PATCH] Adds the ability for a user to pass free text to the
 ParserVersion call, giving the ability to use things like `2.1.experimental`,
 fixes issue #73

---
 Neo4jClient/Cypher/CypherFluentQuery.cs         |  9 +++++++--
 Neo4jClient/Cypher/ICypherFluentQuery.cs        |  1 +
 .../CypherFluentQueryParserVersionTests.cs      | 17 +++++++++++++++++
 3 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/Neo4jClient/Cypher/CypherFluentQuery.cs b/Neo4jClient/Cypher/CypherFluentQuery.cs
index 1e7afacd0..0680dbca5 100644
--- a/Neo4jClient/Cypher/CypherFluentQuery.cs
+++ b/Neo4jClient/Cypher/CypherFluentQuery.cs
@@ -353,12 +353,17 @@ IGraphClient IAttachedReference.Client
             get { return Client; }
         }
 
+        public ICypherFluentQuery ParserVersion(string version)
+        {
+            return Mutate(w => w.AppendClause(string.Format("CYPHER {0}", version)));
+        }
+
         public ICypherFluentQuery ParserVersion(Version version)
         {
             if (version < minimumCypherParserVersion)
-                return Mutate(w => w.AppendClause("CYPHER LEGACY"));
+                return ParserVersion("LEGACY");
             
-            return Mutate(w => w.AppendClause(string.Format("CYPHER {0}.{1}", version.Major, version.Minor)));
+            return ParserVersion(string.Format("{0}.{1}", version.Major, version.Minor));
         }
 
         public ICypherFluentQuery ParserVersion(int major, int minor)
diff --git a/Neo4jClient/Cypher/ICypherFluentQuery.cs b/Neo4jClient/Cypher/ICypherFluentQuery.cs
index 1aaff38f2..b2e8da768 100644
--- a/Neo4jClient/Cypher/ICypherFluentQuery.cs
+++ b/Neo4jClient/Cypher/ICypherFluentQuery.cs
@@ -14,6 +14,7 @@ public partial interface ICypherFluentQuery
         ICypherFluentQuery WithParams(IDictionary<string,object> parameters);
         ICypherFluentQuery WithParams(object parameters);
 
+        ICypherFluentQuery ParserVersion(string version);
         ICypherFluentQuery ParserVersion(Version version);
         ICypherFluentQuery ParserVersion(int major, int minor);
 
diff --git a/Test/Cypher/CypherFluentQueryParserVersionTests.cs b/Test/Cypher/CypherFluentQueryParserVersionTests.cs
index de9f54ec1..4a92ce26c 100644
--- a/Test/Cypher/CypherFluentQueryParserVersionTests.cs
+++ b/Test/Cypher/CypherFluentQueryParserVersionTests.cs
@@ -7,6 +7,23 @@ namespace Neo4jClient.Test.Cypher
 {
     public class CypherFluentQueryParserVersionTests
     {
+        [Test]
+        public void SetsVersionToFreeTextGiven()
+        {
+            var client = Substitute.For<IRawGraphClient>();
+            var query = new CypherFluentQuery(client)
+                .ParserVersion("2.1.experimental")
+                .Start(new
+                {
+                    n = All.Nodes,
+                })
+                .Return<object>("n")
+                .Query;
+
+            Assert.AreEqual("CYPHER 2.1.experimental\r\nSTART n=node(*)\r\nRETURN n", query.QueryText);
+            Assert.AreEqual(0, query.QueryParameters.Count);   
+        }
+
         [Test]
         public void SetsVersion_WhenUsingVersionOverload()
         {