fixed unit test

Author: Wang Lun

Tests/SourceKitLSPTests/SwiftInterfaceTests.swift

@@ -19,10 +19,6 @@ import SourceKitLSP
 import SwiftExtensions
 import XCTest
 
-private extension Language {
-  static let swiftinterface = Language(rawValue: "swiftinterface")
-}
-
 final class SwiftInterfaceTests: XCTestCase {
   func testSystemModuleInterface() async throws {
     let testClient = try await TestSourceKitLSPClient()
@@ -330,7 +326,7 @@ final class SwiftInterfaceTests: XCTestCase {
         GetReferenceDocumentRequest.method: .dictionary(["supported": .bool(true)])
       ])
     )
-    let uri = DocumentURI(for: .swiftinterface)
+    let uri = DocumentURI(for: .swift)
 
     let positions = testClient.openDocument(
       """
@@ -345,9 +341,8 @@ final class SwiftInterfaceTests: XCTestCase {
       DefinitionRequest(textDocument: TextDocumentIdentifier(uri), position: positions["1️⃣"])
     )
     let foundationLocation = try XCTUnwrap(foundationDefinition?.locations?.only)
-    // Verify it's a swiftinterface file (can be either file:// or sourcekit-lsp:// scheme)
     XCTAssertTrue(foundationLocation.uri.scheme == "sourcekit-lsp")
-    XCTAssertTrue(foundationLocation.uri.pseudoPath.hasSuffix("Foundation.swiftinterface"))
+    XCTAssertTrue(foundationLocation.uri.pseudoPath.contains("Foundation.swiftinterface"))
   }
 
   func testFoundationSubmoduleNavigation() async throws {