better tests

Packages/Timeline/Tests/TimelineTests/TimelineFilterTests.swift

@@ -4,25 +4,28 @@ import Testing
 import Foundation
 @testable import Timeline
 
-@Test
-func testTimelineCodableHome() {
-  #expect(testCodableOn(filter: .home))
-  #expect(testCodableOn(filter: .local))
-  #expect(testCodableOn(filter: .federated))
-  #expect(testCodableOn(filter: .remoteLocal(server: "me.dm", filter: .local)))
-  #expect(testCodableOn(filter: .tagGroup(title: "test", tags: ["test"], symbolName: nil)))
-  #expect(testCodableOn(filter: .tagGroup(title: "test", tags: ["test"], symbolName: "test")))
-  #expect(testCodableOn(filter: .hashtag(tag: "test", accountId: nil)))
-  #expect(testCodableOn(filter: .list(list: .init(id: "test", title: "test"))))
-}
-
-fileprivate func testCodableOn(filter: TimelineFilter) -> Bool {
-  let encoder = JSONEncoder()
-  let decoder = JSONDecoder()
-  guard let data = try? encoder.encode(filter) else {
-    return false
+@Suite("Timeline Filter Tests")
+struct TimelineFilterTests {
+  @Test("All timeline filter can be decoded and encoded",
+        arguments: [TimelineFilter.home, TimelineFilter.local, TimelineFilter.federated,
+                    TimelineFilter.remoteLocal(server: "me.dm", filter: .local),
+                    TimelineFilter.tagGroup(title: "test", tags: ["test"], symbolName: nil),
+                    TimelineFilter.tagGroup(title: "test", tags: ["test"], symbolName: "test"),
+                    TimelineFilter.hashtag(tag: "test", accountId: nil),
+                    TimelineFilter.list(list: .init(id: "test", title: "test"))])
+  func timelineCanEncodeAndDecode(filter: TimelineFilter) {
+    #expect(testCodableOn(filter: filter))
+  }
+
+  func testCodableOn(filter: TimelineFilter) -> Bool {
+    let encoder = JSONEncoder()
+    let decoder = JSONDecoder()
+    guard let data = try? encoder.encode(filter) else {
+      return false
+    }
+    let newFilter = try? decoder.decode(TimelineFilter.self, from: data)
+    return newFilter == filter
+
   }
-  let newFilter = try? decoder.decode(TimelineFilter.self, from: data)
-  return newFilter == filter
 
 }

Packages/Timeline/Tests/TimelineTests/TimelineViewModelTests.swift

@@ -2,62 +2,71 @@ import Models
 import Network
 @testable import Timeline
 import XCTest
+import Testing
 
 @MainActor
-final class TimelineViewModelTests: XCTestCase {
-  var subject = TimelineViewModel()
-
-  override func setUp() async throws {
-    subject = TimelineViewModel()
+@Suite("Timeline View Model tests")
+struct Tests {
+  func makeSubject() -> TimelineViewModel {
+    let subject = TimelineViewModel()
     let client = Client(server: "localhost")
     subject.client = client
     subject.timeline = .home
     subject.isTimelineVisible = true
     subject.timelineTask?.cancel()
+    return subject
   }
-
-  func testStreamEventInsertNewStatus() async throws {
+  
+  @Test
+  func streamEventInsertNewStatus() async throws {
+    let subject = makeSubject()
     let isEmpty = await subject.datasource.isEmpty
-    XCTAssertTrue(isEmpty)
+    #expect(isEmpty)
     await subject.datasource.append(.placeholder())
     var count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
+    #expect(count == 1)
     await subject.handleEvent(event: StreamEventUpdate(status: .placeholder()))
     count = await subject.datasource.count()
-    XCTAssertTrue(count == 2)
+    #expect(count == 2)
   }
-
-  func testStreamEventInsertDuplicateStatus() async throws {
+  
+  @Test
+  func streamEventInsertDuplicateStatus() async throws {
+    let subject = makeSubject()
     let isEmpty = await subject.datasource.isEmpty
-    XCTAssertTrue(isEmpty)
+    #expect(isEmpty)
     let status = Status.placeholder()
     await subject.datasource.append(status)
     var count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
+    #expect(count == 1)
     await subject.handleEvent(event: StreamEventUpdate(status: status))
     count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
+    #expect(count == 1)
   }
 
-  func testStreamEventRemove() async throws {
+  @Test
+  func streamEventRemove() async throws {
+    let subject = makeSubject()
     let isEmpty = await subject.datasource.isEmpty
-    XCTAssertTrue(isEmpty)
+    #expect(isEmpty)
     let status = Status.placeholder()
     await subject.datasource.append(status)
     var count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
+    #expect(count == 1)
     await subject.handleEvent(event: StreamEventDelete(status: status.id))
     count = await subject.datasource.count()
-    XCTAssertTrue(count == 0)
+    #expect(count == 0)
   }
 
-  func testStreamEventUpdateStatus() async throws {
+  @Test
+  func streamEventUpdateStatus() async throws {
+    let subject = makeSubject()
     var status = Status.placeholder()
     let isEmpty = await subject.datasource.isEmpty
-    XCTAssertTrue(isEmpty)
+    #expect(isEmpty)
     await subject.datasource.append(status)
     var count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
+    #expect(count == 1)
     status = .init(id: status.id,
                    content: .init(stringValue: "test"),
                    account: status.account,
@@ -88,7 +97,7 @@ final class TimelineViewModelTests: XCTestCase {
     await subject.handleEvent(event: StreamEventStatusUpdate(status: status))
     let statuses = await subject.datasource.get()
     count = await subject.datasource.count()
-    XCTAssertTrue(count == 1)
-    XCTAssertTrue(statuses.first?.content.asRawText == "test")
+    #expect(count == 1)
+    #expect(statuses.first?.content.asRawText == "test")
   }
 }