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// This source file is part of the Swift.org open source project
//
// Copyright (c) 2016 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 the list of Swift project authors
//
//
// ArgumentParser.swift
// Tools for parsing test execution configuration from command line arguments.
//
/// Utility for converting command line arguments into a strongly-typed
/// representation of the passed-in options
internal struct ArgumentParser {
/// The basic operations that can be performed by an XCTest runner executable
enum ExecutionMode {
/// Run tests or test cases, printing results to stdout and exiting with
/// a non-0 return code if any tests failed. The names of tests or test cases
/// may be provided to only run a subset of them.
case run(selectedTestNames: [String]?)
/// The different ways that the tests can be represented when they are listed
enum ListType {
/// A flat list of the tests that can be run. The lines in this
/// output are valid test names for the `run` mode.
case humanReadable
/// A JSON representation of the test suite, intended for consumption
/// by other tools
case json
}
/// Print a list of all the tests in the suite.
case list(type: ListType)
/// Print Help
case help(invalidOption: String?)
var selectedTestNames: [String]? {
if case .run(let names) = self {
return names
} else {
return nil
}
}
}
private let arguments: [String]
init(arguments: [String]) {
self.arguments = arguments
}
var executionMode: ExecutionMode {
if arguments.count <= 1 {
return .run(selectedTestNames: nil)
} else if arguments[1] == "--list-tests" || arguments[1] == "-l" {
return .list(type: .humanReadable)
} else if arguments[1] == "--dump-tests-json" {
return .list(type: .json)
} else if arguments[1] == "--help" || arguments[1] == "-h" {
return .help(invalidOption: nil)
} else if let fst = arguments[1].first, fst == "-" {
return .help(invalidOption: arguments[1])
} else {
return .run(selectedTestNames: arguments[1].split(separator: ",").map(String.init))
}
}
}
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