create tests for updateConsent logic in swift

Author: nickolas-dimitrakas

mParticle-Google-Analytics-Firebase-GA4Tests/Swift/MPKitFirebaseGA4SwiftTests.swift

@@ -0,0 +1,125 @@
+//
+//  MPKitFirebaseGA4SwiftTests.swift
+//  mParticle-Google-Analytics-Firebase-GA4
+//
+//  Created by Nick Dimitrakas on 9/12/25.
+//
+
+import XCTest
+@testable import mParticle_Google_Analytics_Firebase_GA4
+
+final class MPKitFirebaseGA4AnalyticsTests: XCTestCase {
+    var kit: MPKitFirebaseGA4Analytics!
+
+    override func setUp() {
+        super.setUp()
+        kit = MPKitFirebaseGA4Analytics()
+        kit.configuration = [:]
+    }
+
+    override func tearDown() {
+        kit = nil
+        super.tearDown()
+    }
+
+    // MARK: - resolvedConsentForPurpose
+
+    func testResolvedConsentForPurpose_whenConsentGranted_returnsYES() {
+        let consent = MPGDPRConsent()
+        consent.consented = true
+        let gdprConsents = ["analytics": consent]
+
+        let result = kit.resolvedConsent(forPurpose: "analytics", gdprConsents: gdprConsents)
+
+        XCTAssertEqual(result, true)
+    }
+
+    func testResolvedConsentForPurpose_whenConsentDenied_returnsNO() {
+        let consent = MPGDPRConsent()
+        consent.consented = false
+        let gdprConsents = ["ads": consent]
+
+        let result = kit.resolvedConsent(forPurpose: "ads", gdprConsents: gdprConsents)
+
+        XCTAssertEqual(result, false)
+    }
+
+    func testResolvedConsentForPurpose_whenConsentMissing_returnsNil() {
+        let gdprConsents: [String: MPGDPRConsent] = [:]
+
+        let result = kit.resolvedConsent(forPurpose: "ads", gdprConsents: gdprConsents)
+
+        XCTAssertNil(result)
+    }
+
+    // MARK: - resolvedConsentFromDefault
+
+    func testResolvedConsentFromDefault_whenGranted_returnsYES() {
+        kit.configuration = ["purpose_default": "Granted"]
+
+        let result = kit.resolvedConsent(fromDefault: "purpose_default")
+
+        XCTAssertEqual(result, true)
+    }
+
+    func testResolvedConsentFromDefault_whenDenied_returnsNO() {
+        kit.configuration = ["purpose_default": "Denied"]
+
+        let result = kit.resolvedConsent(fromDefault: "purpose_default")
+
+        XCTAssertEqual(result, false)
+    }
+
+    func testResolvedConsentFromDefault_whenMissing_returnsNil() {
+        kit.configuration = [:]
+
+        let result = kit.resolvedConsent(fromDefault: "purpose_default")
+
+        XCTAssertNil(result)
+    }
+
+    // MARK: - resolvedConsentForMappingKey
+
+    func testResolvedConsentForMappingKey_prefersGDPRConsentOverDefault() {
+        let consent = MPGDPRConsent()
+        consent.consented = true
+        let gdprConsents = ["analytics": consent]
+
+        let mapping = ["tracking": "analytics"]
+        kit.configuration = ["tracking_default": "Denied"]
+
+        let result = kit.resolvedConsent(forMappingKey: "tracking",
+                                         defaultKey: "tracking_default",
+                                         gdprConsents: gdprConsents,
+                                         mapping: mapping)
+
+        // Should return GDPR (true) instead of config (Denied/false)
+        XCTAssertEqual(result, true)
+    }
+
+    func testResolvedConsentForMappingKey_fallsBackToDefaultWhenNoGDPR() {
+        let gdprConsents: [String: MPGDPRConsent] = [:]
+        let mapping = ["tracking": "ads"]
+        kit.configuration = ["tracking_default": "Granted"]
+
+        let result = kit.resolvedConsent(forMappingKey: "tracking",
+                                         defaultKey: "tracking_default",
+                                         gdprConsents: gdprConsents,
+                                         mapping: mapping)
+
+        XCTAssertEqual(result, true)
+    }
+
+    func testResolvedConsentForMappingKey_returnsNilWhenNeitherFound() {
+        let gdprConsents: [String: MPGDPRConsent] = [:]
+        let mapping = ["tracking": "ads"]
+        kit.configuration = [:]
+
+        let result = kit.resolvedConsent(forMappingKey: "tracking",
+                                         defaultKey: "tracking_default",
+                                         gdprConsents: gdprConsents,
+                                         mapping: mapping)
+
+        XCTAssertNil(result)
+    }
+}