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+//
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+// ProductsInfoControllerTests.swift
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+// SwiftyStoreKit
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+//
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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 TestInAppProductRequest: InAppProductRequest {
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+
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+ private let productIds: Set<String>
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+ private let callback: InAppProductRequestCallback
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+
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+ init(productIds: Set<String>, callback: @escaping InAppProductRequestCallback) {
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+ self.productIds = productIds
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+ self.callback = callback
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+ }
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+
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+ func start() {
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+
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+ }
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+ func cancel() {
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+
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+ }
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+
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+ func fireCallback() {
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+ callback(RetrieveResults(retrievedProducts: [], invalidProductIDs: [], error: nil))
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+ }
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+}
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+
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+class TestInAppProductRequestBuilder: InAppProductRequestBuilder {
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+
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+ var requests: [ TestInAppProductRequest ] = []
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+
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+ func request(productIds: Set<String>, callback: @escaping InAppProductRequestCallback) -> InAppProductRequest {
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+ let request = TestInAppProductRequest(productIds: productIds, callback: callback)
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+ requests.append(request)
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+ return request
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+ }
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+
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+ func fireCallbacks() {
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+ requests.forEach {
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+ $0.fireCallback()
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+ }
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+ requests = []
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+ }
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+}
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+
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+class ProductsInfoControllerTests: XCTestCase {
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+
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+ let sampleProductIdentifiers: Set<String> = ["com.iap.purchase1"]
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+
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+ func testRetrieveProductsInfo_when_calledOnce_then_completionCalledOnce() {
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+
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+ let requestBuilder = TestInAppProductRequestBuilder()
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+ let productInfoController = ProductsInfoController(inAppProductRequestBuilder: requestBuilder)
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+
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+ var completionCount = 0
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+ productInfoController.retrieveProductsInfo(sampleProductIdentifiers) { _ in
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+ completionCount += 1
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+ }
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+ requestBuilder.fireCallbacks()
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+
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+ XCTAssertEqual(completionCount, 1)
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+ }
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+
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+ func testRetrieveProductsInfo_when_calledTwiceConcurrently_then_eachCompletionCalledOnce() {
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+
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+ let requestBuilder = TestInAppProductRequestBuilder()
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+ let productInfoController = ProductsInfoController(inAppProductRequestBuilder: requestBuilder)
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+
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+ var completionCount = 0
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+ productInfoController.retrieveProductsInfo(sampleProductIdentifiers) { _ in
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+ completionCount += 1
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+ }
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+ productInfoController.retrieveProductsInfo(sampleProductIdentifiers) { _ in
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+ completionCount += 1
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+ }
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+ requestBuilder.fireCallbacks()
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+
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+ XCTAssertEqual(completionCount, 2)
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+ }
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+ func testRetrieveProductsInfo_when_calledTwiceNotConcurrently_then_eachCompletionCalledOnce() {
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+
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+ let requestBuilder = TestInAppProductRequestBuilder()
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+ let productInfoController = ProductsInfoController(inAppProductRequestBuilder: requestBuilder)
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+
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+ var completionCount = 0
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+ productInfoController.retrieveProductsInfo(sampleProductIdentifiers) { _ in
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+ completionCount += 1
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+ }
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+ requestBuilder.fireCallbacks()
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+ XCTAssertEqual(completionCount, 1)
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+
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+ productInfoController.retrieveProductsInfo(sampleProductIdentifiers) { _ in
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+ completionCount += 1
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+ }
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+ requestBuilder.fireCallbacks()
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+ XCTAssertEqual(completionCount, 2)
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+ }
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+}
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Andrea Bizzotto