Refactored the StaticFile enumeration in the Website library target into a structure.

Services/Website/Tests/App/AppTests.swift

@@ -107,7 +107,7 @@ struct AppTests {
         }
     }
 
-    @Test(arguments: StaticFile.allCases)
+    @Test(arguments: StaticFile.all)
     func `static files to be served`(
         staticFile file: StaticFile
     ) async throws {

Services/Website/Tests/Library/Cases/Internal/Enumerations/StaticFileTests.swift

@@ -1,82 +0,0 @@
-import Infrastructure
-import Testing
-
-@testable import WebsiteLibrary
-
-@Suite(
-    "StaticFile enumeration",
-    .tags(.enumeration)
-)
-struct StaticFileTests {
-
-    // MARK: Type aliases
-
-    typealias File = StaticFile
-
-    // MARK: Computed tests
-
-    @Test(arguments: zip(
-        File.allCases,
-        Self.fileExtensions
-    ))
-    func `file extensions`(
-        for file: File,
-        expects extensions: [AssetExtension]
-    ) {
-        #expect(file.fileExtensions == extensions)
-    }
-
-    @Test(arguments: zip(
-        File.allCases,
-        Self.fileNames
-    ))
-    func `file name`(
-        for file: File,
-        expects fileName: String
-    ) {
-        #expect(file.fileName == fileName)
-    }
-
-    // MARK: CaseIterable tests
-
-    @Test
-    func `all cases`() {
-        #expect(File.allCases.count == 11)
-    }
-
-}
-
-// MARK: - Helpers
-
-private extension StaticFileTests {
-
-    // MARK: Constants
-
-    static let fileExtensions: [[AssetExtension]] = [
-        [.png],
-        [.ico],
-        [.svg],
-        [.png],
-        [.png],
-        [.css, .js],
-        [.css, .js],
-        [.txt],
-        [.css, .js],
-        [.webmanifest],
-        [.xml]
-    ]
-    static let fileNames: [String] = [
-        "apple-touch-icon",
-        "favicon",
-        "icon",
-        "icon-192",
-        "icon-512",
-        "index",
-        "not-found",
-        "robots",
-        "shared",
-        "site",
-        "sitemap"
-    ]
-
-}

Services/Website/Tests/Library/Cases/Internal/Types/StaticFileTests.swift

@@ -0,0 +1,57 @@
+import Infrastructure
+import Testing
+
+@testable import WebsiteLibrary
+
+@Suite(
+    "StaticFile type",
+    .tags(.type)
+)
+struct StaticFileTests {
+
+    // MARK: Type aliases
+
+    typealias File = StaticFile
+
+    // MARK: Computed tests
+
+    /// The path is asserted rather than the three facts behind it: it is the only form the rest of the service sees.
+    @Test(arguments: Self.paths)
+    func `relative paths`(
+        for file: File,
+        expects paths: [String]
+    ) {
+        #expect(file.fileExtensions.map(file.relativePath) == paths)
+    }
+
+    // MARK: Constants tests
+
+    @Test
+    func `all files`() {
+        #expect(File.all.count == Self.paths.count)
+    }
+
+}
+
+// MARK: - Helpers
+
+private extension StaticFileTests {
+
+    // MARK: Constants
+
+    /// Every file paired with the path it is served at, one per extension, in ``StaticFile/all`` order.
+    static let paths: [(File, [String])] = [
+        (.appleTouchIcon, ["apple-touch-icon.png"]),
+        (.favicon, ["favicon.ico"]),
+        (.icon, ["icon.svg"]),
+        (.icon192, ["icon-192.png"]),
+        (.icon512, ["icon-512.png"]),
+        (.index, ["css/index.css", "js/index.js"]),
+        (.notFound, ["css/not-found.css", "js/not-found.js"]),
+        (.robots, ["robots.txt"]),
+        (.shared, ["css/shared.css", "js/shared.js"]),
+        (.site, ["site.webmanifest"]),
+        (.sitemap, ["sitemap.xml"]),
+    ]
+
+}

Services/Website/Tests/Library/Utils/Extensions/Tag+Constants.swift

@@ -7,4 +7,6 @@ extension Tag {
     @Tag static var enumeration: Tag
     /// Tests exercising a page of the Website library.
     @Tag static var page: Tag
+    /// Tests exercising a type of the Website library.
+    @Tag static var type: Tag
 }