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| 1 | +import XCTest |
| 2 | +@testable import WooCommerce |
| 3 | +@testable import Yosemite |
| 4 | + |
| 5 | +/// Tests for `PriceInputViewModel` |
| 6 | +/// |
| 7 | +final class PriceInputViewModelTests: XCTestCase { |
| 8 | + private let sampleSiteID: Int64 = 123 |
| 9 | + private var storesManager: MockStoresManager! |
| 10 | + |
| 11 | + override func setUp() { |
| 12 | + super.setUp() |
| 13 | + storesManager = MockStoresManager(sessionManager: .makeForTesting()) |
| 14 | + } |
| 15 | + |
| 16 | + override func tearDown() { |
| 17 | + storesManager = nil |
| 18 | + super.tearDown() |
| 19 | + } |
| 20 | + |
| 21 | + func test_initial_viewModel_state() throws { |
| 22 | + // Given |
| 23 | + let listViewModel = ProductListViewModel(siteID: sampleSiteID, stores: storesManager) |
| 24 | + let sampleProduct1 = Product.fake().copy(productID: 1, regularPrice: "100") |
| 25 | + listViewModel.selectProduct(sampleProduct1) |
| 26 | + |
| 27 | + let viewModel = PriceInputViewModel(productListViewModel: listViewModel) |
| 28 | + |
| 29 | + // Then |
| 30 | + XCTAssertEqual(viewModel.applyButtonEnabled, false) |
| 31 | + XCTAssertNil(viewModel.inputValidationError) |
| 32 | + XCTAssertTrue(viewModel.footerText.isNotEmpty) |
| 33 | + } |
| 34 | + |
| 35 | + func test_state_when_price_is_changed_from_empty_to_a_value() { |
| 36 | + // Given |
| 37 | + let listViewModel = ProductListViewModel(siteID: sampleSiteID, stores: storesManager) |
| 38 | + let sampleProduct1 = Product.fake().copy(productID: 1, regularPrice: "100") |
| 39 | + listViewModel.selectProduct(sampleProduct1) |
| 40 | + |
| 41 | + let viewModel = PriceInputViewModel(productListViewModel: listViewModel) |
| 42 | + |
| 43 | + // When |
| 44 | + viewModel.handlePriceChange("42") |
| 45 | + |
| 46 | + // Then |
| 47 | + XCTAssertEqual(viewModel.applyButtonEnabled, true) |
| 48 | + XCTAssertNil(viewModel.inputValidationError) |
| 49 | + } |
| 50 | + |
| 51 | + func test_state_when_price_is_changed_from_a_value_to_empty() { |
| 52 | + // Given |
| 53 | + let listViewModel = ProductListViewModel(siteID: sampleSiteID, stores: storesManager) |
| 54 | + let sampleProduct1 = Product.fake().copy(productID: 1, regularPrice: "100") |
| 55 | + listViewModel.selectProduct(sampleProduct1) |
| 56 | + |
| 57 | + let viewModel = PriceInputViewModel(productListViewModel: listViewModel) |
| 58 | + |
| 59 | + // When |
| 60 | + viewModel.handlePriceChange("") |
| 61 | + |
| 62 | + // Then |
| 63 | + XCTAssertEqual(viewModel.applyButtonEnabled, false) |
| 64 | + XCTAssertNil(viewModel.inputValidationError) |
| 65 | + } |
| 66 | + |
| 67 | + func test_state_when_selected_regular_price_is_less_than_sale_price() { |
| 68 | + // Given |
| 69 | + let listViewModel = ProductListViewModel(siteID: sampleSiteID, stores: storesManager) |
| 70 | + let sampleProduct1 = Product.fake().copy(productID: 1, dateOnSaleStart: Date(), dateOnSaleEnd: Date(), regularPrice: "100", salePrice: "42") |
| 71 | + listViewModel.selectProduct(sampleProduct1) |
| 72 | + |
| 73 | + let viewModel = PriceInputViewModel(productListViewModel: listViewModel) |
| 74 | + |
| 75 | + // When |
| 76 | + viewModel.handlePriceChange("24") |
| 77 | + viewModel.applyButtonTapped() |
| 78 | + |
| 79 | + // Then |
| 80 | + XCTAssertEqual(viewModel.applyButtonEnabled, true) |
| 81 | + XCTAssertEqual(viewModel.inputValidationError, .salePriceHigherThanRegularPrice) |
| 82 | + } |
| 83 | + |
| 84 | + func test_state_when_selected_valid_price_is_valid_and_action_is_dispatched() { |
| 85 | + // Given |
| 86 | + var callbackValue: String? |
| 87 | + let listViewModel = ProductListViewModel(siteID: sampleSiteID, stores: storesManager) |
| 88 | + let sampleProduct1 = Product.fake().copy(productID: 1, regularPrice: "100") |
| 89 | + listViewModel.selectProduct(sampleProduct1) |
| 90 | + |
| 91 | + let viewModel = PriceInputViewModel(productListViewModel: listViewModel) |
| 92 | + viewModel.applyClosure = { result in |
| 93 | + callbackValue = result |
| 94 | + } |
| 95 | + |
| 96 | + // When |
| 97 | + viewModel.handlePriceChange("42") |
| 98 | + viewModel.applyButtonTapped() |
| 99 | + |
| 100 | + // Then |
| 101 | + XCTAssertEqual(viewModel.applyButtonEnabled, true) |
| 102 | + XCTAssertNil(viewModel.inputValidationError) |
| 103 | + XCTAssertEqual(callbackValue, "42") |
| 104 | + } |
| 105 | +} |
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