[RP1][iOS] Expose PayPal and Venmo App Installed for Merchants (#1473)

* Added `isPayPalAppInstalled`, `isVenmoAppInstalled` methods

* Moved methods to Shopper Insights

* Fixed failing unit tests. Added to CHANGELOG

* Addressed PR comment

* Update Sources/BraintreeShopperInsights/BTShopperInsightsClient.swift

CHANGELOG.md

@@ -5,6 +5,8 @@
   * Add `BTPayPalRequest.userPhoneNumber` optional property
 * BraintreeVenmo
   * Send `url` in `event_params` for App Switch events to PayPal's analytics service (FPTI)
+* BraintreeShopperInsights (BETA)
+  * Add `isPayPalAppInstalled()` and/or `isVenmoAppInstalled()`
 
 ## 6.24.0 (2024-10-15)
 * BraintreePayPal

Sources/BraintreeShopperInsights/BTShopperInsightsClient.swift

@@ -25,6 +25,8 @@ public class BTShopperInsightsClient {
         self.apiClient = apiClient
     }
 
+    // MARK: - Public Methods
+
     /// This method confirms if the customer is a user of PayPal services using their email and phone number.
     /// - Parameters:
     ///   - request: Required:  A `BTShopperInsightsRequest` containing the buyer's user information.
@@ -121,7 +123,19 @@ public class BTShopperInsightsClient {
     public func sendVenmoSelectedEvent() {
         apiClient.sendAnalyticsEvent(BTShopperInsightsAnalytics.venmoSelected)
     }
-
+
+    /// Indicates whether the PayPal App is installed.
+    /// - Warning: This method is currently in beta and may change or be removed in future releases.
+    public func isPayPalAppInstalled() -> Bool {
+        application.isPayPalAppInstalled()
+    }
+
+    /// Indicates whether the Venmo App is installed.
+    /// - Warning: This method is currently in beta and may change or be removed in future releases.
+    public func isVenmoAppInstalled() -> Bool {
+        application.isVenmoAppInstalled()
+    }
+
     // MARK: - Analytics Helper Methods
 
     private func notifySuccess(with result: BTShopperInsightsResult, for experiment: String?) -> BTShopperInsightsResult {

UnitTests/BraintreeShopperInsightsTests/BTShopperInsightsClient_Tests.swift

@@ -227,4 +227,38 @@ class BTShopperInsightsClient_Tests: XCTestCase {
         sut.sendVenmoSelectedEvent()
         XCTAssertEqual(mockAPIClient.postedAnalyticsEvents.first, "shopper-insights:venmo-selected")
     }
+
+    // MARK: - App Installed Methods
+
+    func testIsPayPalAppInstalled_whenPayPalAppNotInstalled_returnsFalse() {
+        let fakeApplication = FakeApplication()
+        fakeApplication.cannedCanOpenURL = false
+
+        XCTAssertFalse(sut.isPayPalAppInstalled())
+    }
+
+    func testIsPayPalAppInstalled_whenPayPalAppIsInstalled_returnsTrue() {
+        let fakeApplication = FakeApplication()
+        fakeApplication.cannedCanOpenURL = true
+        fakeApplication.canOpenURLWhitelist.append(URL(string: "paypal-app-switch-checkout://x-callback-url/path")!)
+        sut.application = fakeApplication
+
+        XCTAssertTrue(sut.isPayPalAppInstalled())
+    }
+
+    func testIsVenmoAppInstalled_whenVenmoAppNotInstalled_returnsFalse() {
+        let fakeApplication = FakeApplication()
+        fakeApplication.cannedCanOpenURL = false
+
+        XCTAssertFalse(sut.isVenmoAppInstalled())
+    }
+
+    func testIsVenmoAppInstalled_whenVenmoAppIsInstalled_returnsTrue() {
+        let fakeApplication = FakeApplication()
+        fakeApplication.cannedCanOpenURL = true
+        fakeApplication.canOpenURLWhitelist.append(URL(string: "com.venmo.touch.v2://x-callback-url/path")!)
+        sut.application = fakeApplication
+
+        XCTAssertTrue(sut.isVenmoAppInstalled())
+    }
 }