(137600784) Guard old behavior in URL tests

Author: jrflat

Tests/FoundationEssentialsTests/URLTests.swift

@@ -643,18 +643,19 @@ final class URLTests : XCTestCase {
         var url = URL(filePath: "~")
         // "~" must either be expanded to an absolute path or resolved against a base URL
         XCTAssertTrue(
-            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path().utf8.first == ._slash)
+            // Using .path to get the absolute path for both the old and new behavior
+            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path.utf8.first == ._slash)
         )
 
         url = URL(filePath: "~", directoryHint: .isDirectory)
         XCTAssertTrue(
-            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path().utf8.first == ._slash)
+            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path.utf8.first == ._slash)
         )
         XCTAssertEqual(url.path().utf8.last, ._slash)
 
         url = URL(filePath: "~/")
         XCTAssertTrue(
-            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path().utf8.first == ._slash)
+            url.relativePath.utf8.first == ._slash || (url.baseURL != nil && url.path.utf8.first == ._slash)
         )
         XCTAssertEqual(url.path().utf8.last, ._slash)
     }
@@ -677,7 +678,12 @@ final class URLTests : XCTestCase {
         XCTAssertEqual(url.path(), "/path.foo/")
         url.append(path: "/////")
         url.deletePathExtension()
+        #if !FOUNDATION_FRAMEWORK_NSURL
         XCTAssertEqual(url.path(), "/path/")
+        #else
+        // Old behavior only searches the last empty component, so the extension isn't actually removed
+        XCTAssertEqual(url.path(), "/path.foo///")
+        #endif
     }
 
     func testURLComponentsPercentEncodedUnencodedProperties() throws {