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//===----------------------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
import XCTest
import ArgumentParserTestHelpers
final class RollDiceExampleTests: XCTestCase {
override func setUp() {
#if !os(Windows) && !os(WASI)
unsetenv("COLUMNS")
#endif
}
func testRollDice() throws {
try AssertExecuteCommand(command: "roll --times 6")
}
func testRollDice_Help() throws {
let helpText = """
USAGE: roll [--times <n>] [--sides <m>] [--seed <seed>] [--verbose]
OPTIONS:
--times <n> Rolls the dice <n> times. (default: 1)
--sides <m> Rolls an <m>-sided dice. (default: 6)
Use this option to override the default value of a six-sided die.
--seed <seed> A seed to use for repeatable random generation.
-v, --verbose Show all roll results.
-h, --help Show help information.
"""
try AssertExecuteCommand(command: "roll -h", expected: helpText)
try AssertExecuteCommand(command: "roll --help", expected: helpText)
}
func testRollDice_Fail() throws {
try AssertExecuteCommand(
command: "roll --times",
expected: """
Error: Missing value for '--times <n>'
Help: --times <n> Rolls the dice <n> times.
Usage: roll [--times <n>] [--sides <m>] [--seed <seed>] [--verbose]
See 'roll --help' for more information.
""",
exitCode: .validationFailure)
try AssertExecuteCommand(
command: "roll --times ZZZ",
expected: """
Error: The value 'ZZZ' is invalid for '--times <n>'
Help: --times <n> Rolls the dice <n> times.
Usage: roll [--times <n>] [--sides <m>] [--seed <seed>] [--verbose]
See 'roll --help' for more information.
""",
exitCode: .validationFailure)
}
}
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