🔀 :: (#458) ArtistReactor Unit Test 작성

Projects/Domains/ArtistDomain/Project.swift

@@ -18,6 +18,10 @@ let project = Project.module(
                 .domain(target: .ArtistDomain, type: .interface)
             ]
         ),
+        .testing(
+            module: .domain(.ArtistDomain),
+            dependencies: [.domain(target: .ArtistDomain, type: .interface)]
+        ),
         .tests(
             module: .domain(.ArtistDomain),
             dependencies: [.domain(target: .ArtistDomain)]

Projects/Domains/ArtistDomain/Testing/UseCase/FetchArtistListUseCaseSpy.swift

@@ -0,0 +1,12 @@
+import ArtistDomainInterface
+import Foundation
+import RxSwift
+
+public final class FetchArtistListUseCaseSpy: FetchArtistListUseCase {
+    public private(set) var callCount = 0
+    public var handler: (() -> Single<[ArtistListEntity]>) = { .never() }
+    public func execute() -> Single<[ArtistListEntity]> {
+        callCount += 1
+        return handler()
+    }
+}

Projects/Features/ArtistFeature/Project.swift

@@ -15,6 +15,10 @@ let project = Project.module(
                     .domain(target: .ArtistDomain, type: .interface)
                 ]
             )
-        )
+        ),
+        .tests(module: .feature(.ArtistFeature), dependencies: [
+            .feature(target: .ArtistFeature),
+            .domain(target: .ArtistDomain, type: .testing)
+        ])
     ]
 )

Projects/Features/ArtistFeature/Tests/ArtistReactorTests.swift

@@ -0,0 +1,95 @@
+import ArtistDomainInterface
+@testable import ArtistDomainTesting
+@testable import ArtistFeature
+import XCTest
+
+final class ArtistReactorTests: XCTestCase {
+    var fetchArtistListUseCase: FetchArtistListUseCaseSpy!
+    var sut: ArtistReactor!
+
+    override func setUp() {
+        super.setUp()
+        fetchArtistListUseCase = .init()
+        sut = ArtistReactor(fetchArtistListUseCase: fetchArtistListUseCase)
+    }
+
+    override func tearDown() {
+        super.tearDown()
+        fetchArtistListUseCase = nil
+        sut = nil
+    }
+
+    func test_when_viewDidLoad_action_and_artist_count_is_1_then_append_hidden_item() {
+        // Given
+        let dummyArtistList = [makeTwoDummyArtistList().first!]
+        fetchArtistListUseCase.handler = {
+            return .just(dummyArtistList)
+        }
+
+        // When
+        sut.action.onNext(.viewDidLoad)
+
+        // Then
+        XCTAssertEqual(fetchArtistListUseCase.callCount, 1)
+        XCTAssertEqual(sut.currentState.artistList[0], dummyArtistList.first)
+        XCTAssertEqual(sut.currentState.artistList[1].artistId, "")
+        XCTAssertEqual(sut.currentState.artistList[1].isHiddenItem, true)
+    }
+
+    func test_when_viewDidLoad_action_and_artist_count_greater_than_2_then_swap_index_0_and_1() {
+        // Given
+        let dummyArtistList = makeTwoDummyArtistList()
+        fetchArtistListUseCase.handler = {
+            return .just(dummyArtistList)
+        }
+        let expectedArtistList = {
+            var list = dummyArtistList
+            list.swapAt(0, 1)
+            return list
+        }()
+
+        // When
+        sut.action.onNext(.viewDidLoad)
+
+        // Then
+        XCTAssertEqual(fetchArtistListUseCase.callCount, 1)
+        XCTAssertEqual(sut.currentState.artistList, expectedArtistList)
+    }
+
+    private func makeTwoDummyArtistList() -> [ArtistListEntity] {
+        [
+            ArtistListEntity(
+                artistId: "1",
+                name: "name",
+                short: "short",
+                group: "group",
+                title: "title",
+                description: "description",
+                color: [["ffffff"]],
+                youtube: "https://youtube.com",
+                twitch: "twitch",
+                instagram: "insta",
+                imageRoundVersion: 1,
+                imageSquareVersion: 1,
+                graduated: false,
+                isHiddenItem: false
+            ),
+            ArtistListEntity(
+                artistId: "2",
+                name: "nam2",
+                short: "short2",
+                group: "group2",
+                title: "title2",
+                description: "description2",
+                color: [["ffffff"]],
+                youtube: "https://youtube.com",
+                twitch: "twitch",
+                instagram: "insta",
+                imageRoundVersion: 1,
+                imageSquareVersion: 1,
+                graduated: false,
+                isHiddenItem: false
+            )
+        ]
+    }
+}