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/*
This source file is part of the Swift.org open source project
Copyright (c) 2024 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import _AsyncFileSystem
import _InternalTestSupport
import XCTest
import struct SystemPackage.FilePath
final class AsyncFileSystemTests: XCTestCase {
func testMockFileSystem() async throws {
let fs = MockFileSystem()
let mockPath: FilePath = "/foo/bar"
await XCTAssertAsyncFalse(await fs.exists(mockPath))
let mockContent = "baz".utf8
try await fs.write(mockPath, bytes: mockContent)
await XCTAssertAsyncTrue(await fs.exists(mockPath))
// Test overwriting
try await fs.write(mockPath, bytes: mockContent)
await XCTAssertAsyncTrue(await fs.exists(mockPath))
let bytes = try await fs.withOpenReadableFile(mockPath) { fileHandle in
try await fileHandle.read().reduce(into: []) { $0.append(contentsOf: $1) }
}
XCTAssertEqual(bytes, Array(mockContent))
}
func testOSFileSystem() async throws {
try await testWithTemporaryDirectory { tmpDir in
let fs = OSFileSystem()
let mockPath = FilePath(tmpDir.appending("foo").pathString)
await XCTAssertAsyncFalse(await fs.exists(mockPath))
let mockContent = "baz".utf8
try await fs.write(mockPath, bytes: mockContent)
await XCTAssertAsyncTrue(await fs.exists(mockPath))
// Test overwriting
try await fs.write(mockPath, bytes: mockContent)
await XCTAssertAsyncTrue(await fs.exists(mockPath))
let bytes = try await fs.withOpenReadableFile(mockPath) { fileHandle in
try await fileHandle.read().reduce(into: []) { $0.append(contentsOf: $1) }
}
XCTAssertEqual(bytes, Array(mockContent))
}
}
}
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