Files
swift-argument-parser/Tests/ArgumentParserExampleTests/CountLinesExampleTests.swift
Nate Cook 5535a95838 Fix some Swift 5.6 compatibility issues (#516)
* Use existential CodingKey parameters consistently

Swift 5.7 supports implicit opening for existentials, so these
conversions from `CodingKey` parameters to pass to methods that
are generic over `CodingKey` work fine. Prior to Swift 5.7, however,
these don't compile, with the message that `CodingKey` doesn't conform
to itself.

* Bump the required Swift version for the count-lines test

The overload resolution for the `static func main()` in an `@main`
type still had issues in Swift 5.6, such that a package with a min.
platform below that which works for concurrency backdeployment doesn't
properly resolve the AsyncParsableCommand `main()` function. In
Swift 5.7, this is properly resolved, so just the availability on
the main type is sufficient.

This change just skips the test of `count-lines` prior to Swift 5.7,
so that we can maintain the open platform minimum for the package
as a whole.
2022-11-04 16:18:24 -05:00

44 lines
1.6 KiB
Swift

//===----------------------------------------------------------*- swift -*-===//
//
// This source file is part of the Swift Argument Parser open source project
//
// Copyright (c) 2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
//
//===----------------------------------------------------------------------===//
#if os(macOS) && swift(>=5.7)
import XCTest
import ArgumentParserTestHelpers
final class CountLinesExampleTests: XCTestCase {
func testCountLines() throws {
guard #available(macOS 12, *) else { return }
let testFile = try XCTUnwrap(Bundle.module.url(forResource: "CountLinesTest", withExtension: "txt"))
try AssertExecuteCommand(command: "count-lines \(testFile.path)", expected: "20")
try AssertExecuteCommand(command: "count-lines \(testFile.path) --prefix al", expected: "4")
}
func testCountLinesHelp() throws {
guard #available(macOS 12, *) else { return }
let helpText = """
USAGE: count-lines [<input-file>] [--prefix <prefix>] [--verbose]
ARGUMENTS:
<input-file> A file to count lines in. If omitted, counts the
lines of stdin.
OPTIONS:
--prefix <prefix> Only count lines with this prefix.
--verbose Include extra information in the output.
-h, --help Show help information.
"""
try AssertExecuteCommand(command: "count-lines -h", expected: helpText)
}
}
#endif