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firebase-ios-sdk/FirebaseStorage/Tests/Unit/StoragePutFileTests.swift
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// Copyright 2026 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
@testable import FirebaseStorage
import Foundation
#if COCOAPODS
import GTMSessionFetcher
#else
import GTMSessionFetcherCore
#endif
import XCTest
class StoragePutFileTests: StorageTestHelpers {
func testPutFileWithPOSIXError40UpdatesExistingFetcherService() async throws {
// Initialize storage *before* setting the testBlock to verify that
// `StorageFetcherService.updateTestBlock` correctly updates pre-existing instances.
let storageInstance = storage()
let ref = storageInstance.reference(withPath: "ios/public/testPOSIX40")
let testBlock: GTMSessionFetcherTestBlock = { fetcher, response in
let error = NSError(domain: NSPOSIXErrorDomain, code: 40, userInfo: nil)
response(nil, nil, error)
}
await StorageFetcherService.shared.updateTestBlock(testBlock)
addTeardownBlock {
await StorageFetcherService.shared.updateTestBlock(nil)
}
let data = try XCTUnwrap("Hello".data(using: .utf8))
let sanitizedTestName = #function.replacingOccurrences(of: "()", with: "")
let tmpDirURL = FileManager.default.temporaryDirectory
// createDirectory is necessary because SPM tests on CI can fail with ENOENT if the temporary
// directory doesn't exist yet.
try? FileManager.default.createDirectory(at: tmpDirURL, withIntermediateDirectories: true)
let fileURL = tmpDirURL.appendingPathComponent("\(sanitizedTestName)-\(UUID().uuidString).txt")
try data.write(to: fileURL)
addTeardownBlock {
try? FileManager.default.removeItem(at: fileURL)
}
do {
_ = try await ref.putFileAsync(from: fileURL)
XCTFail("Unexpected success")
} catch let error as NSError {
XCTAssertEqual(error.domain, StorageErrorDomain)
XCTAssertEqual(error.code, StorageErrorCode.unknown.rawValue)
let message = error.localizedDescription
XCTAssertTrue(
message.contains("POSIX errno 40 (The operation couldn’t be completed. Message too long)"),
"Error message should contain 'POSIX errno 40 (The operation couldn’t be completed. Message too long)', but got \(message)"
)
}
}
}