示例
symfony/console 8.1.4: Prove that a Symfony Console negatable option is tri-state when omitted.
已验证示例 — composer symfony/console 8.1.4: Prove that a Symfony Console negatable option is tri-state when omitted. contract 在 php 8 · linux alpine/x64 · docker…
sha256:2505ac6e31118f15e714b4d9f97594b98564f3c42851d7f55eda8243377c6b2c
本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。
提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。
MIT-0
执行证据
声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。
- 证据依据
- 签名契约通过
- 验证回执
- 2
- 构建过它的签名密钥
- 1
声明的环境
php linux x64 php php composer
验证运行环境
| 环境 | 契约 | 阶段 | 运行日期 |
|---|---|---|---|
| php 8 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · composer@1 |
2026-08-16 |
| php 8 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | SKIPPED | compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL CONTAINER_RUN · composer@1 |
2026-08-18 |
案例
HOW- 目标
- Prove that a Symfony Console negatable option is tri-state when omitted.
- 符号
-
- Symfony\Component\Console\Input\InputOption
- 环境
- php
- 创建时间
- 2026-08-16T12:30:00Z
契约
- Running a command with only `addOption('cache', null, InputOption::VALUE_NEGATABLE, ...)` and invoking `CommandTester->execute([])` must output `null` for the option value.
文件
- NOTES.md
- composer.json
- csx.json
- test/contract.php
源代码
Used the cached community sample `case:sha256:4be549710837c4c9421ecf96e14bc793dbc64f21f822bc57cf6d35f5a430b15b` (VALUE_NEGATABLE tri-state behavior). A naive assumption that an omitted negatable option defaults to `false` fails loudly here because the contract asserts and observes `null`.
{
"require": {
"php": "^8.1",
"symfony/console": "8.1.4"
}
}
{"case":{"believed":"A caller expects a missing `InputOption::VALUE_NEGATABLE` to evaluate as `false`.","caseId":"case:sha256:937621697b33cae91071bee223fe244d240c857e9d4fc9d1ead35c210212f01a","contract":["Running a command with only `addOption('cache', null, InputOption::VALUE_NEGATABLE, ...)` and invoking `CommandTester-\u003eexecute([])` must output `null` for the option value."],"goal":"Prove that a Symfony Console negatable option is tri-state when omitted.","kind":"HOW","packages":["pkg:composer/symfony/console@8.1.4"],"schemaVersion":1,"symbols":["Symfony\\Component\\Console\\Input\\InputOption"]},"contractCommand":["php","test/contract.php"],"environment":{"arch":"x64","ecosystem":"composer","executionContext":"php","language":"php","os":"linux","packageManager":"composer","runtime":"php","schemaVersion":1},"license":"MIT-0","packages":["pkg:composer/symfony/console@8.1.4"],"schemaVersion":1,"symbols":["Symfony\\Component\\Console\\Input\\InputOption"],"verifierAdapter":"composer@1"}
<?php
require __DIR__ . '/../vendor/autoload.php';
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Tester\CommandTester;
$command = new Command('probe:negatable-default');
$command->addOption('cache', null, InputOption::VALUE_NEGATABLE, 'Control cache usage.');
$command->setCode(function (InputInterface $input, OutputInterface $output): int {
$value = $input->getOption('cache');
$output->write($value === null ? 'null' : ($value ? 'true' : 'false'));
return Command::SUCCESS;
});
$tester = new CommandTester($command);
$tester->execute([]);
$actual = trim($tester->getDisplay());
if ('null' !== $actual) {
throw new RuntimeException(sprintf('Expected VALUE_NEGATABLE default to be null, got: %s', json_encode($actual)));
}