This PR contains the work that implements the Dependency service, which is used as a dependency injection mechanism in the application. To give further details on what was done: - [x] created the `Dependency` library into the **Libraries** package; - [x] defined the `DependencyKey` protocol; - [x] implemented the `DependencyService` service; - [x] implemented the `Dependency` property wrapper. Co-authored-by: Javier Cicchelli <javier@rock-n-code.com> Reviewed-on: rock-n-code/deep-linking-assignment#6
75 lines
1.5 KiB
Swift
75 lines
1.5 KiB
Swift
//
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// DependencyTests.swift
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// DependencyTests
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//
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// Created by Javier Cicchelli on 11/04/2023.
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// Copyright © 2023 Röck+Cöde. All rights reserved.
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//
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import XCTest
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@testable import Dependency
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final class DependencyTests: XCTestCase {
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// MARK: Properties
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private var subject: TestSubject!
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// MARK: Setup
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override func setUp() {
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DependencyService[\.testService] = SomeService()
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}
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// MARK: Tests
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func test_readTestService() {
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// GIVEN
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subject = .init()
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// WHEN
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let service = subject.testService
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// THEN
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XCTAssertNotNil(service)
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XCTAssert(service is SomeService)
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}
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func test_writeDependencyKey() async throws {
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// GIVEN
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subject = .init()
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subject.testService = SomeOtherService()
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// WHEN
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let service = DependencyService[\.testService]
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// THEN
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XCTAssertNotNil(service)
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XCTAssert(service is SomeOtherService)
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}
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func test_writeDependencyKeyTwice() async throws {
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// GIVEN
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subject = .init()
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subject.testService = SomeOtherService()
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subject.testService = SomeService()
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// WHEN
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let service = DependencyService[\.testService]
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// THEN
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XCTAssertNotNil(service)
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XCTAssert(service is SomeService)
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}
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}
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// MARK: - TestSubject
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private struct TestSubject {
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@Dependency(\.testService) var testService
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}
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