change eventEndPoint to public var (#438)

Author: jaeopt

Sources/Data Model/DispatchEvents/EventForDispatch.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 @objcMembers public class EventForDispatch: NSObject, Codable {
-    static let eventEndpoint = "https://logx.optimizely.com/v1/events"
+    public static var eventEndpoint = "https://logx.optimizely.com/v1/events"
 
     public let url: URL
     public let body: Data

Tests/OptimizelyTests-Common/EventDispatcherTests.swift

@@ -151,16 +151,46 @@ class EventDispatcherTests: XCTestCase {
         // Use XCTAssert and related functions to verify your tests produce the correct results.
     }
 
-    func testDispatcherCustom() {
+    func testDispatcherCustomUrl() {
         let dispatcher = MockEventDispatcher()
 
+        let originalUrl = "https://logx.optimizely.com/v1/events"
+        let customUrl = "https://google.com"
+        let overrideUrl = "https://apple.com"
+        
+        // default end-point
+        
         dispatcher.dispatchEvent(event: EventForDispatch(body: Data()), completionHandler: nil)
 
         XCTAssert(dispatcher.events.count == 1)
+        XCTAssert(dispatcher.events.first?.url.absoluteString == originalUrl)
+        dispatcher.flushEvents()
+        XCTAssert(dispatcher.events.count == 0)
+        
+        // customize end-point
 
+        EventForDispatch.eventEndpoint = customUrl
+        dispatcher.dispatchEvent(event: EventForDispatch(body: Data()), completionHandler: nil)
+        
+        XCTAssert(dispatcher.events.count == 1)
+        XCTAssert(dispatcher.events.first?.url.absoluteString == customUrl)
         dispatcher.flushEvents()
 
-        XCTAssert(dispatcher.events.count == 0)
+        // override end-point
+        
+        dispatcher.dispatchEvent(event: EventForDispatch(url: URL(string: overrideUrl), body: Data()), completionHandler: nil)
+        
+        XCTAssert(dispatcher.events.count == 1)
+        XCTAssert(dispatcher.events.first?.url.absoluteString == overrideUrl)
+        dispatcher.flushEvents()
+        
+        // saved custom end-point
+        
+        dispatcher.dispatchEvent(event: EventForDispatch(body: Data()), completionHandler: nil)
+        
+        XCTAssert(dispatcher.events.count == 1)
+        XCTAssert(dispatcher.events.first?.url.absoluteString == customUrl)
+        dispatcher.flushEvents()
     }
 
     func testDispatcherMethods() {