close #43. Changed graph creation and docs. (#44)

* close #43. Changed graph creation.

Author: DvirDukhan

src/graph.js

@@ -7,15 +7,15 @@ const redis = require("redis"),
  * RedisGraph client
  */
 class Graph {
-	/**
-	 * Creates a client to a specific graph running on the specific host/post
-	 * See: node_redis for more options on createClient
-	 *
-	 * @param {string} graphId the graph id
-	 * @param {string | RedisClient} [host] Redis host or node_redis client
-	 * @param {string} [port] Redis port
-	 * @param {ClientOpts} [options] node_redis options
-	 */
+     /**
+      * Creates a client to a specific graph running on the specific host/post
+      * See: node_redis for more options on createClient 
+      * 
+      * @param {string} graphId the graph id
+      * @param {string | RedisClient} [host] Redis host or node_redis client
+      * @param {string | int} [port] Redis port
+      * @param {ClientOpts} [options] node_redis options
+      */
 	constructor(graphId, host, port, options) {
 		this._graphId = graphId;        // Graph ID
 		this._labels = [];              // List of node labels.
@@ -29,7 +29,7 @@ class Graph {
 		let client =
 			host instanceof redis.RedisClient
 				? host
-				: redis.createClient.apply(redis, [].slice.call(arguments, 1));
+				: redis.createClient(port, host, options);
 		this._sendCommand = util.promisify(client.send_command).bind(client);
 	}
 

test/redisGraphAPITest.js

@@ -10,14 +10,29 @@ const assert = require("assert"),
 	deepEqual = require("deep-equal");
 
 describe("RedisGraphAPI Test", () => {
+    // Assuming this test is running against redis server at: localhost:6379 with no password.
 	const api = new RedisGraph("social");
 
 	beforeEach(() => {
 		return api.deleteGraph().catch(() => {});
 	});
 
-	it("test bring your client", () => {
-		return new RedisGraph("social", redis.createClient());
+    it("test connection from port and host", async () => {
+        // Assuming this test is running against redis server at: localhost:6379 with no password.
+        let graph = new RedisGraph("social", "127.0.0.1", 6379, {password:undefined});
+        let result = await graph.query("CREATE ({name:'roi', age:34})");
+		assert.ok(!result.hasNext());
+        assert.equal(1, result.getStatistics().nodesCreated());
+        graph.deleteGraph();
+    }) 
+
+	it("test connection from client", async () => {
+        // Assuming this test is running against redis server at: localhost:6379 with no password.
+        let graph = new RedisGraph("social", redis.createClient());
+        let result = await graph.query("CREATE ({name:'roi', age:34})");
+		assert.ok(!result.hasNext());
+        assert.equal(1, result.getStatistics().nodesCreated());
+        graph.deleteGraph();
 	});
 
 	it("test Create Node", async () => {