add test case for large file metadata

Author: ardaatahan

Tests/HubTests/HubApiTests.swift

@@ -144,6 +144,25 @@ class HubApiTests: XCTestCase {
             XCTAssertGreaterThan(metadata.size!, 0)
         }
     }
+    
+    func testGetLargeFileMetadata() async throws {
+        do {
+            let revision = "eaf97358a37d03fd48e5a87d15aff2e8423c1afb"
+            let etag = "fc329090bfbb2570382c9af997cffd5f4b78b39b8aeca62076db69534e020107"
+            let location = "https://cdn-lfs.hf.co/repos/4a/4e/4a4e587f66a2979dcd75e1d7324df8ee9ef74be3582a05bea31c2c26d0d467d0/fc329090bfbb2570382c9af997cffd5f4b78b39b8aeca62076db69534e020107?response-content-disposition=inline%3B+filename*%3DUTF-8%27%27model.mlmodel%3B+filename%3D%22model.mlmodel"
+            let size = 504766
+            
+            let url = URL(string: "https://huggingface.co/coreml-projects/Llama-2-7b-chat-coreml/resolve/main/llama-2-7b-chat.mlpackage/Data/com.apple.CoreML/model.mlmodel")
+            let metadata = try await Hub.getFileMetadata(fileURL: url!)
+                        
+            XCTAssertEqual(metadata.commitHash, revision)
+            XCTAssertNotNil(metadata.etag, etag)
+            XCTAssertTrue(metadata.location.contains(location))
+            XCTAssertEqual(metadata.size, size)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
 }
 
 class SnapshotDownloadTests: XCTestCase {