diff --git a/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_CocoaTests.swift b/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_CocoaTests.swift
deleted file mode 100644
index 1fe2d14..0000000
--- a/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_CocoaTests.swift
+++ /dev/null
@@ -1,105 +0,0 @@
-import XCTest
-import MultipartFormDataParser
-
-#if canImport(Cocoa) && !targetEnvironment(macCatalyst)
-import Cocoa
-
-final class MultipartFormDataParser_CocoaTests: XCTestCase {
-
-    override class func setUp() {
-        stubForUpload()
-    }
-
-    override class func tearDown() {
-        clearStubs()
-    }
-
-    func testRequest() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let request = createRequest(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message)
-        let data = try MultipartFormData.parse(from: request)
-        XCTAssertEqual(data.element(forName: "genbaNeko")?.data, genbaNeko)
-        XCTAssertEqual(data.element(forName: "denwaNeko")?.data, denwaNeko)
-        XCTAssertEqual(data.element(forName: "message")?.string, "Hello world!")
-    }
-
-    #if canImport(Alamofire)
-    func testAlamofire() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        let result = try XCTUnwrap(uploadWithAlamoFire(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-    #if compiler(>=5.6) && canImport(_Concurrency)
-    @available(macOS 10.15, *)
-    func testAlamofireWithConcurrency() async throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try await uploadWithAlamoFireConcurrency(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message)
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-    #endif
-    #endif
-
-    #if canImport(APIKit)
-    func testAPIKit() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        try runActivity(named: "request") {
-            let request = try requestWithAPIKit(genbaNeko: genbaNeko,
-                                                denwaNeko: denwaNeko,
-                                                message: message)
-            let data = try MultipartFormData.parse(from: request)
-            XCTAssertEqual(data.element(forName: "genbaNeko")?.data, genbaNeko)
-            XCTAssertEqual(data.element(forName: "denwaNeko")?.data, denwaNeko)
-            XCTAssertEqual(data.element(forName: "message")?.string, "Hello world!")
-        }
-
-        try runActivity(named: "stub") {
-            let result = try XCTUnwrap(uploadWithAPIKit(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-            XCTAssertEqual(result.status, 200)
-            XCTAssertNil(result.error)
-        }
-    }
-    #endif
-
-    #if canImport(Moya)
-    func testMoya() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        let result = try XCTUnwrap(uploadWithMoya(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-    #endif
-
-    func testURLSessionDataTask() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try XCTUnwrap(uploadURLSessionDataTask(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-
-    func testURLSessionUploadTask() throws {
-        let genbaNeko = try XCTUnwrap(NSImage(data: TestResource.genbaNeko)?.jpegRepresentation)
-        let denwaNeko = try XCTUnwrap(NSImage(data: TestResource.denwaNeko)?.jpegRepresentation)
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try XCTUnwrap(uploadURLSessionUploadTask(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-}
-#endif
diff --git a/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_UIKitTests.swift b/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_UIKitTests.swift
deleted file mode 100644
index c96e859..0000000
--- a/Tests/MultipartFormDataParserTests/MultipartFormDataTestUtil_UIKitTests.swift
+++ /dev/null
@@ -1,106 +0,0 @@
-import XCTest
-import MultipartFormDataParser
-
-#if canImport(UIKit)
-import UIKit
-
-final class MultipartFormDataParser_UIKitTests: XCTestCase {
-
-    override class func setUp() {
-        stubForUpload()
-    }
-
-    override class func tearDown() {
-        clearStubs()
-    }
-
-    func testRequest() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let request = createRequest(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message)
-        let data = try MultipartFormData.parse(from: request)
-        XCTAssertEqual(data.element(forName: "genbaNeko")?.data, genbaNeko)
-        XCTAssertEqual(data.element(forName: "denwaNeko")?.data, denwaNeko)
-        XCTAssertEqual(data.element(forName: "message")?.string, "Hello world!")
-    }
-
-    #if canImport(Alamofire)
-    func testAlamofire() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        let result = try XCTUnwrap(uploadWithAlamoFire(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-
-    #if compiler(>=5.6) && canImport(_Concurrency)
-    @available(macCatalyst 13, iOS 13, tvOS 13, *)
-    func testAlamofireWithConcurrency() async throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try await uploadWithAlamoFireConcurrency(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message)
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-    #endif
-    #endif
-
-    #if canImport(APIKit)
-    func testAPIKit() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        try runActivity(named: "request") {
-            let request = try requestWithAPIKit(genbaNeko: genbaNeko,
-                                                denwaNeko: denwaNeko,
-                                                message: message)
-            let data = try MultipartFormData.parse(from: request)
-            XCTAssertEqual(data.element(forName: "genbaNeko")?.data, genbaNeko)
-            XCTAssertEqual(data.element(forName: "denwaNeko")?.data, denwaNeko)
-            XCTAssertEqual(data.element(forName: "message")?.string, "Hello world!")
-        }
-
-        try runActivity(named: "stub") {
-            let result = try XCTUnwrap(uploadWithAPIKit(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-            XCTAssertEqual(result.status, 200)
-            XCTAssertNil(result.error)
-        }
-    }
-    #endif
-
-    #if canImport(Moya)
-    func testMoya() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-
-        let result = try XCTUnwrap(uploadWithMoya(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-    #endif
-
-    func testURLSessionUploadTask() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try XCTUnwrap(uploadURLSessionUploadTask(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-
-    func testURLSessionDataTask() throws {
-        let genbaNeko = try XCTUnwrap(UIImage(data: TestResource.genbaNeko)?.jpegData(compressionQuality: 1))
-        let denwaNeko = try XCTUnwrap(UIImage(data: TestResource.denwaNeko)?.jpegData(compressionQuality: 1))
-        let message = try XCTUnwrap("Hello world!".data(using: .utf8))
-        let result = try XCTUnwrap(uploadURLSessionDataTask(genbaNeko: genbaNeko, denwaNeko: denwaNeko, message: message))
-        XCTAssertEqual(result.status, 200)
-        XCTAssertNil(result.error)
-    }
-}
-#endif