suggested updates and adds unit tests

Author: [email protected]

swift-sdk/Constants.swift

@@ -270,6 +270,11 @@ enum JsonValue {
     }
 }
 
+enum IterableDataRegion {
+    static let US = "https://api.iterable.com"
+    static let EU = "https://api.eu.iterable.com"
+}
+
 public protocol JsonValueRepresentable {
     var jsonValue: Any { get }
 }

swift-sdk/IterableConfig.swift

@@ -126,5 +126,5 @@ public class IterableConfig: NSObject {
     public var useInMemoryStorageForInApps = false
 
     /// Sets data region which determines data center and endpoints used by the SDK
-    public var dataRegion: DataRegion = DataRegion.US
+    public var dataRegion: IterableDataRegion = IterableDataRegion.US
 }

swift-sdk/IterableDataRegion.swift

@@ -0,0 +1,30 @@
+//
+//  File.swift
+//  
+//
+//  Created by [email protected] on 4/5/23.
+//
+
+import XCTest
+
+final class IterableConfigTests: XCTestCase {
+    func testDefaultConfig() {
+        let config = IterableConfig()
+        
+        XCTAssertEqual(config.pushIntegrationName, undefined)
+        XCTAssertEqual(config.sandboxPushIntegrationName, undefined)
+        XCTAssertEqual(config.pushPlatform, PushServicePlatform.auto)
+        XCTAssertEqual(config.urlDelegate, undefined)
+        XCTAssertEqual(config.customActionDelegate, undefined)
+        XCTAssertEqual(config.authDelegate, undefined)
+        XCTAssertEqual(config.autoPushRegistration, true)
+        XCTAssertEqual(config.checkForDeferredDeeplink, false)
+        XCTAssertEqual(config.logDelegate, DefaultLogDelegate())
+        XCTAssertEqual(config.inAppDelegate, DefaultInAppDelegate())
+        XCTAssertEqual(config.inAppDisplayInterval, 30.0)
+        XCTAssertEqual(config.expiringAuthTokenRefreshPeriod, 60.0)
+        XCTAssertEqual(config.allowedProtocols, [])
+        XCTAssertEqual(config.useInMemoryStorageForInApps, false)
+        XCTAssertEqual(config.dataRegion, IterableDataRegion.US)
+    }
+}