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+//
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+// InAppReceiptVerificatorTests.swift
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+// SwiftyStoreKit
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+//
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+// Created by Andrea Bizzotto on 17/05/2017.
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+// Copyright (c) 2017 Andrea Bizzotto (bizz84@gmail.com)
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+//
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+// Permission is hereby granted, free of charge, to any person obtaining a copy
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+// of this software and associated documentation files (the "Software"), to deal
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+// in the Software without restriction, including without limitation the rights
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+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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+// copies of the Software, and to permit persons to whom the Software is
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+// furnished to do so, subject to the following conditions:
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+//
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+// The above copyright notice and this permission notice shall be included in
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+// all copies or substantial portions of the Software.
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+//
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+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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+// THE SOFTWARE.
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+
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+import XCTest
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+@testable import SwiftyStoreKit
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+
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+class TestReceiptValidator: ReceiptValidator {
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+ var validateCalled = false
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+ func validate(receipt: String, password autoRenewPassword: String?, completion: @escaping (VerifyReceiptResult) -> Void) {
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+ validateCalled = true
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+ completion(.success(receipt: [:]))
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+ }
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+}
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+
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+class TestInAppReceiptRefreshRequest: InAppReceiptRefreshRequest {
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+
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+ override func start() {
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+ // do nothing
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+ }
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+}
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+
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+extension VerifyReceiptResult: Equatable {
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+
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+ static public func == (lhs: VerifyReceiptResult, rhs: VerifyReceiptResult) -> Bool {
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+ switch (lhs, rhs) {
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+ case (.success(_), .success(_)): return true
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+ case (.error(let lhsError), .error(let rhsError)): return lhsError == rhsError
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+ default: return false
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+ }
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+ }
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+}
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+
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+extension ReceiptError: Equatable {
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+
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+ static public func == (lhs: ReceiptError, rhs: ReceiptError) -> Bool {
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+ switch (lhs, rhs) {
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+ case (.noReceiptData, .noReceiptData): return true
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+ case (.noRemoteData, .noRemoteData): return true
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+ case (.requestBodyEncodeError(_), .requestBodyEncodeError(_)): return true
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+ case (.networkError(_), .networkError(_)): return true
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+ case (.jsonDecodeError(_), .jsonDecodeError(_)): return true
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+ case (.receiptInvalid(_, _), .receiptInvalid(_, _)): return true
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+ default: return false
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+ }
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+ }
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+}
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+
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+class InAppReceiptVerificatorTests: XCTestCase {
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+
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+ // MARK: refresh tests (no receipt url or no receipt data)
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNil_then_callsRefresh() {
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: nil)
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+
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+ var refreshCalled = false
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ refreshCalled = true
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { _ in
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+
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+ }
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+ XCTAssertTrue(refreshCalled)
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+ }
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+
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNotNil_noReceiptData_then_callsRefresh() {
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+
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+ let testReceiptURL = makeReceiptURL()
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: testReceiptURL)
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+
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+ var refreshCalled = false
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ refreshCalled = true
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { _ in
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+
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+ }
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+ XCTAssertTrue(refreshCalled)
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+ }
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+
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNil_refreshCallbackError_then_errorNetworkError() {
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: nil)
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+ let refreshError = NSError(domain: "", code: 0, userInfo: nil)
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+
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ callback(.error(e: refreshError))
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { result in
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+
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+ XCTAssertEqual(result, VerifyReceiptResult.error(error: ReceiptError.networkError(error: refreshError)))
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+ }
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+ }
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+
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNil_refreshCallbackSuccess_receiptDataNotWritten_then_errorNoReceiptData_validateNotCalled() {
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: nil)
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+
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ callback(.success)
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { result in
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+
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+ XCTAssertEqual(result, VerifyReceiptResult.error(error: ReceiptError.noReceiptData))
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+ }
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+ XCTAssertFalse(validator.validateCalled)
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+ }
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+
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNil_noReceiptData_refreshCallbackSuccess_receiptDataWritten_then_errorNoReceiptData_validateNotCalled() {
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+
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+ let testReceiptURL = makeReceiptURL()
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: nil)
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+
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ writeReceiptData(to: testReceiptURL)
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+ callback(.success)
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { result in
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+
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+ XCTAssertEqual(result, VerifyReceiptResult.error(error: ReceiptError.noReceiptData))
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+ }
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+ XCTAssertFalse(validator.validateCalled)
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+ removeReceiptData(at: testReceiptURL)
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+ }
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+
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNotNil_noReceiptData_refreshCallbackSuccess_receiptDataWritten_then_validateIsCalled() {
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+
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+ let testReceiptURL = makeReceiptURL()
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: testReceiptURL)
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+
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ writeReceiptData(to: testReceiptURL)
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+ callback(.success)
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { _ in
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+
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+ }
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+ XCTAssertTrue(validator.validateCalled)
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+ removeReceiptData(at: testReceiptURL)
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+ }
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+
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+ // MARK: non-refresh tests (receipt url and data are set)
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+ func testVerifyReceipt_when_appStoreReceiptURLIsNotNil_hasReceiptData_then_refreshNotCalled_validateIsCalled() {
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+
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+ let testReceiptURL = makeReceiptURL()
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+ writeReceiptData(to: testReceiptURL)
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+
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+ let validator = TestReceiptValidator()
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+ let verificator = InAppReceiptVerificator(appStoreReceiptURL: testReceiptURL)
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+
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+ verificator.verifyReceipt(using: validator, password: nil, refresh: { (properties, callback) -> InAppReceiptRefreshRequest in
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+
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+ XCTFail("refresh should not be called if we already have a receipt")
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+ return TestInAppReceiptRefreshRequest(receiptProperties: properties, callback: callback)
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+
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+ }) { _ in
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+
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+ }
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+ XCTAssertTrue(validator.validateCalled)
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+ removeReceiptData(at: testReceiptURL)
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+ }
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+
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+ // MARK: Helpers
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+ func makeReceiptURL() -> URL {
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+
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+ guard let testFolderURL = try? FileManager.default.url(for: .documentDirectory, in: .allDomainsMask, appropriateFor: nil, create: false) else {
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+ fatalError("Invalid test folder")
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+ }
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+ return testFolderURL.appendingPathComponent("receipt.data")
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+ }
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+
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+ func writeReceiptData(to url: URL) {
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+
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+ guard let testReceiptData = NSData(base64Encoded: "encrypted-receipt", options: .ignoreUnknownCharacters) else {
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+ fatalError("Invalid receipt data")
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+ }
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+ try? testReceiptData.write(to: url)
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+ }
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+
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+ func removeReceiptData(at url: URL) {
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+ try? FileManager.default.removeItem(at: url)
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+ }
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+
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+}
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Andrea Bizzotto