Implemented the "random(upTo: )" and "random(fromExclusive: )" static function for the LoggerLevel+Helpers extension in the tests target.

Tests/DocCMiddleware/Tests/Internal/Use Cases/RedirectURIUseCaseTests.swift

@@ -29,7 +29,7 @@ struct RedirectURIUseCaseTests {
     @Test
     func `response when logging event triggered`() async throws {
         try await assertResponse(
-            logLevel: try randomLogLevelWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriRedirection: .Sample.uriRedirection,
             expects: .movedPermanently
         )
@@ -38,7 +38,7 @@ struct RedirectURIUseCaseTests {
     @Test
     func `response when logging event not triggered`() async throws {
         try await assertResponse(
-            logLevel: try randomLogLevelWithNoEvent,
+            logLevel: try .random(fromExclusive: .debug),
             uriRedirection: .Sample.uriRedirection,
             expects: .movedPermanently
         )
@@ -47,7 +47,7 @@ struct RedirectURIUseCaseTests {
     @Test("response when logging event triggered")
     func response_whenEventTriggered() async throws {
         try await assertResponse(
-            logLevel: try randomLogLevelWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriRedirection: .uriRedirection,
             expects: .movedPermanently
         )
@@ -137,23 +137,7 @@ private extension RedirectURIUseCaseTests {
 // MARK: - Helpers
 
 private extension RedirectURIUseCaseTests {
-    
-    // MARK: Computed
-    
-    /// Extracts a random logging level that support event logging for the use case.
-    var randomLogLevelWithEvent: Logger.Level {
-        get throws {
-            try #require([.debug, .trace].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level that does not support event logging for the use case.
-    var randomLogLevelWithNoEvent: Logger.Level {
-        get throws {
-            try #require([.critical, .error, .info, .notice, .warning].randomElement())
-        }
-    }
-    
+
     // MARK: Functions
     
     /// Checks whether a logging event should be logged or not.

Tests/DocCMiddleware/Tests/Internal/Use Cases/ServeURIUseCaseTests.swift

@@ -29,7 +29,7 @@ struct ServeURIUseCaseTests {
     @Test
     func `response when resource served and logging event triggered`() async throws {
         try await assertResponse(
-            logLevel: .debug,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .ok
@@ -39,7 +39,7 @@ struct ServeURIUseCaseTests {
     @Test
     func `response when resource served and logging event not triggered`() async throws {
         try await assertResponse(
-            logLevel: .info,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .ok
@@ -49,7 +49,7 @@ struct ServeURIUseCaseTests {
     @Test
     func `response when resource not found and logging event triggered`() async throws {
         try await assertResponse(
-            logLevel: .error,
+            logLevel: try .random(upTo: .error),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .notFound
@@ -59,7 +59,7 @@ struct ServeURIUseCaseTests {
     @Test
     func `response when resource not found and logging event not triggered`() async throws {
         try await assertResponse(
-            logLevel: .critical,
+            logLevel: try .random(fromExclusive: .error),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .notFound
@@ -69,7 +69,7 @@ struct ServeURIUseCaseTests {
     @Test
     func `response throws error when loading resource`() async throws {
         try await assertResponse(
-            logLevel: .warning,
+            logLevel: try .random(),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder
         )
@@ -78,7 +78,7 @@ struct ServeURIUseCaseTests {
     @Test("response when resource served and logging event triggered")
     func response_whenResourceServed_andEventTriggered() async throws {
         try await assertResponse(
-            logLevel: .debug,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .ok
@@ -88,7 +88,7 @@ struct ServeURIUseCaseTests {
     @Test("response when resource served and logging event not triggered")
     func response_whenResourceServed_andEventNotTriggered() async throws {
         try await assertResponse(
-            logLevel: .info,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .ok
@@ -98,7 +98,7 @@ struct ServeURIUseCaseTests {
     @Test("response when resource not found and logging event triggered")
     func resource_whenResourceNotFound_andEventTriggered() async throws {
         try await assertResponse(
-            logLevel: .error,
+            logLevel: try .random(upTo: .error),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .notFound
@@ -108,7 +108,7 @@ struct ServeURIUseCaseTests {
     @Test("response when resource not found and logging event not triggered")
     func resource_whenResourceNotFound_andEventNotTriggered() async throws {
         try await assertResponse(
-            logLevel: .critical,
+            logLevel: try .random(fromExclusive: .error),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder,
             expects: .notFound
@@ -118,7 +118,7 @@ struct ServeURIUseCaseTests {
     @Test("response throws error when loading resource")
     func resource_throwsError_whenLoadingResource() async throws {
         try await assertResponse(
-            logLevel: .warning,
+            logLevel: try .random(),
             uriPath: .Sample.uriResource,
             folderPath: .Sample.uriFolder
         )

Tests/DocCMiddleware/Tests/Public/Middlewares/DocCMiddlewareTests.swift

@@ -79,7 +79,7 @@ struct DocCMiddlewareTests {
         expects uriRedirect: String
     ) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevelForRedirectWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             to: .Sample.uriDocument + uriRedirect
         )
@@ -94,7 +94,7 @@ struct DocCMiddlewareTests {
         expects uriRedirect: String
     ) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevelForRedirectWithNoEvent,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             to: .Sample.uriDocument + uriRedirect
         )
@@ -103,8 +103,8 @@ struct DocCMiddlewareTests {
     @Test(arguments: Input.redirectURIPaths)
     func `redirect a URI path not prefixed with root URI path`(uriPath: String) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevel,
-            uriPath: .Sample.uriDocument + uriPath,
+            logLevel: try .random(),
+            uriPath: uriPath,
             expects: .ok
         )
     }
@@ -118,7 +118,7 @@ struct DocCMiddlewareTests {
         uriFile: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeOKWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             uriFile: uriFile,
             statusCode: .ok
@@ -130,7 +130,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeOKWithNoEvent,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             statusCode: .ok
         )
@@ -145,7 +145,7 @@ struct DocCMiddlewareTests {
         uriFile: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeNotFoundWithEvent,
+            logLevel: try .random(upTo: .error),
             uriPath: .Sample.uriDocument + uriPath,
             uriFile: uriFile,
             statusCode: .notFound
@@ -157,7 +157,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeNotFoundWithNoEvent,
+            logLevel: try .random(fromExclusive: .error),
             uriPath: .Sample.uriDocument + uriPath,
             statusCode: .notFound
         )
@@ -168,7 +168,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevel,
+            logLevel: try .random(),
             uriPath: uriPath
         )
     }
@@ -182,7 +182,7 @@ struct DocCMiddlewareTests {
         expects uriRedirect: String
     ) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevelForRedirectWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriRoot + uriPath,
             to: .Sample.uriRoot + uriRedirect
         )
@@ -197,7 +197,7 @@ struct DocCMiddlewareTests {
         expects uriRedirect: String
     ) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevelForRedirectWithNoEvent,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriRoot + uriPath,
             to: .Sample.uriRoot + uriRedirect
         )
@@ -206,7 +206,7 @@ struct DocCMiddlewareTests {
     @Test("redirect a URI path not prefixed with root URI path", arguments: Input.redirectURIPaths)
     func redirect_aURIPath_notPrefixedURIRoot(uriPath: String) async throws {
         try await assertRedirect(
-            logLevel: try randomLogLevel,
+            logLevel: try .random(),
             uriPath: .Sample.uriResource + uriPath,
             expects: .ok
         )
@@ -221,7 +221,7 @@ struct DocCMiddlewareTests {
         uriFile: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeOKWithEvent,
+            logLevel: try .random(upTo: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             uriFile: uriFile,
             statusCode: .ok
@@ -233,7 +233,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeOKWithNoEvent,
+            logLevel: try .random(fromExclusive: .debug),
             uriPath: .Sample.uriDocument + uriPath,
             statusCode: .ok
         )
@@ -248,7 +248,7 @@ struct DocCMiddlewareTests {
         uriFile: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeNotFoundWithEvent,
+            logLevel: try .random(upTo: .error),
             uriPath: .Sample.uriDocument + uriPath,
             uriFile: uriFile,
             statusCode: .notFound
@@ -260,7 +260,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevelForServeNotFoundWithNoEvent,
+            logLevel: try .random(fromExclusive: .error),
             uriPath: .Sample.uriDocument + uriPath,
             statusCode: .notFound
         )
@@ -271,7 +271,7 @@ struct DocCMiddlewareTests {
         uriPath: String
     ) async throws {
         try await assertServe(
-            logLevel: try randomLogLevel,
+            logLevel: try .random(),
             uriPath: uriPath
         )
     }
@@ -342,7 +342,7 @@ private extension DocCMiddlewareTests {
         #expect(type(of:middleware.fileProvider) == FileSystemProvider.self)
     }
     
-    /// Asserts an URI path redirection done by the middleware.
+    /// Asserts a URI path redirection done by the middleware.
     /// - Parameters:
     ///   - logLevel: A representation of the logging level to set in the `Logger` instance.
     ///   - uriPath: A URI path to a resource.
@@ -423,19 +423,17 @@ private extension DocCMiddlewareTests {
         }
     }
     
-    /// <#Description#>
+    /// Asserts a URI resource serving done by the middleware.
     /// - Parameters:
-    ///   - logLevel: <#logLevel description#>
-    ///   - uriPath: <#uriPath description#>
-    ///   - uriFile: <#uriFile description#>
-    ///   - folderPath: <#folderPath description#>
-    ///   - statusCode: <#statusCode description#>
+    ///   - logLevel: A representation of the logging level to set in the `Logger` instance.
+    ///   - uriPath: A URI path for a resource.
+    ///   - uriFile: A URI path for a file in the local file system.
+    ///   - statusCode: An expected status code from the response coming out of the use case, if any.
     /// - Throws: An error in case an issue is encountered while asserting URI path servings by the middleware.
     func assertServe(
         logLevel: Logger.Level,
         uriPath: String,
         uriFile: String? = nil,
-        folderPath: String = .Sample.uriFolder,
         statusCode: HTTPResponse.Status? = nil
     ) async throws {
         // GIVEN
@@ -527,58 +525,7 @@ private extension DocCMiddlewareTests {
 // MARK: - Helpers
 
 private extension DocCMiddlewareTests {
-    
-    // MARK: Computed
-    
-    /// Extracts a random logging level.
-    var randomLogLevel: Logger.Level {
-        get throws {
-            try #require(Logger.Level.allCases.randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for redirection assertions that support event logging for the use case.
-    var randomLogLevelForRedirectWithEvent: Logger.Level {
-        get throws {
-            try #require([.debug, .trace].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for redirection assertions that does not support event logging for the use case.
-    var randomLogLevelForRedirectWithNoEvent: Logger.Level {
-        get throws {
-            try #require([.critical, .error, .info, .notice, .warning].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for OK serve assertions that support event logging for the use case.
-    var randomLogLevelForServeOKWithEvent: Logger.Level {
-        get throws {
-            try #require([.debug, .trace].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for OK serve assertions that does not support event logging for the use case.
-    var randomLogLevelForServeOKWithNoEvent: Logger.Level {
-        get throws {
-            try #require([.critical, .error, .info, .notice, .warning].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for Not Found serve assertions that support event logging for the use case.
-    var randomLogLevelForServeNotFoundWithEvent: Logger.Level {
-        get throws {
-            try #require([.debug, .error, .info, .notice, .trace, .warning].randomElement())
-        }
-    }
-    
-    /// Extracts a random logging level for Not Found serve assertions that does not support event logging for the use case.
-    var randomLogLevelForServeNotFoundWithNoEvent: Logger.Level {
-        get throws {
-            try #require([.critical].randomElement())
-        }
-    }
-    
+
     // MARK: Functions
     
     /// Checks whether a logging event should be logged or not, based on a given logging level.

Tests/DocCMiddleware/Types/Extensions/LoggerLevel+Helpers.swift

@@ -0,0 +1,61 @@
+// ===----------------------------------------------------------------------===
+//
+// This source file is part of the Hummingbird DocC Middleware open source project
+//
+// Copyright (c) 2025 Röck+Cöde VoF. and the Hummingbird DocC Middleware project authors
+// Licensed under the EUPL 1.2 or later.
+//
+// See LICENSE for license information
+// See CONTRIBUTORS for the list of Hummingbird DocC Middleware project authors
+//
+// ===----------------------------------------------------------------------===
+
+import Testing
+
+import struct Logging.Logger
+
+extension Logger.Level {
+    
+    // MARK: Functions
+    
+    /// Extracts a random logging level value out of an inclusive subset of logging levels, arranged by severity.
+    /// - Parameter level: A representation of a logging level that defines a subset of values to choose from, if any.
+    /// - Returns: A randomized logging value.
+    /// - Throws: An error thrown in case an issue is encountered when deciding for a random value.
+    static func random(upTo level: Self? = nil) throws -> Self {
+        guard let level else {
+            return try #require(Self.allCases.randomElement())
+        }
+        
+        let levels: [Self] = switch level {
+        case .trace: [.trace]
+        case .debug: [.debug, .trace]
+        case .info: [.debug, .info, .trace]
+        case .notice: [.debug, .info, .notice, .trace]
+        case .warning: [.debug, .info, .notice, .trace, .warning]
+        case .error: [.debug, .error, .info, .notice, .trace, .warning]
+        case .critical: Self.allCases
+        }
+        
+        return try #require(levels.randomElement())
+    }
+    
+    /// /// Extracts a random logging level value out of an exclusive subset of logging levels, arranged by severity.
+    /// - Parameter level: A representation of a logging level that defines a subset of values to choose from.
+    /// - Returns: A randomized logging value.
+    /// - Throws: An error thrown in case an issue is encountered when deciding for a random value.
+    static func random(fromExclusive level: Self) throws -> Self {
+        let levels: [Self] = switch level {
+        case .trace: [.critical, .debug, .error, .info, .notice, .warning]
+        case .debug: [.critical, .error, .info, .notice, .warning]
+        case .info: [.critical, .error, .notice, .warning]
+        case .notice: [.critical, .error, .warning]
+        case .warning: [.critical, .error]
+        case .error: [.critical]
+        case .critical: []
+        }
+        
+        return try #require(levels.randomElement())
+    }
+    
+}