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process: add NODE_NO_WARNINGS environment variable
This commit adds support for a NODE_NO_WARNINGS environment variable, which duplicates the functionality of the --no-warnings command line flag. Fixes: nodejs#10802 PR-URL: nodejs#10842 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Evan Lucas <evanlucas@me.com> Reviewed-By: Sam Roberts <vieuxtech@gmail.com> Reviewed-By: Italo A. Casas <me@italoacasas.com>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,41 @@ | ||
'use strict'; | ||
const common = require('../common'); | ||
const assert = require('assert'); | ||
const cp = require('child_process'); | ||
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if (process.argv[2] === 'child') { | ||
process.emitWarning('foo'); | ||
} else { | ||
function test(env) { | ||
const cmd = `${process.execPath} ${__filename} child`; | ||
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cp.exec(cmd, { env }, common.mustCall((err, stdout, stderr) => { | ||
assert.strictEqual(err, null); | ||
assert.strictEqual(stdout, ''); | ||
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if (env.NODE_NO_WARNINGS === '1') | ||
assert.strictEqual(stderr, ''); | ||
else | ||
assert(/Warning: foo$/.test(stderr.trim())); | ||
})); | ||
} | ||
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test({}); | ||
test(process.env); | ||
test({ NODE_NO_WARNINGS: undefined }); | ||
test({ NODE_NO_WARNINGS: null }); | ||
test({ NODE_NO_WARNINGS: 'foo' }); | ||
test({ NODE_NO_WARNINGS: true }); | ||
test({ NODE_NO_WARNINGS: false }); | ||
test({ NODE_NO_WARNINGS: {} }); | ||
test({ NODE_NO_WARNINGS: [] }); | ||
test({ NODE_NO_WARNINGS: function() {} }); | ||
test({ NODE_NO_WARNINGS: 0 }); | ||
test({ NODE_NO_WARNINGS: -1 }); | ||
test({ NODE_NO_WARNINGS: '0' }); | ||
test({ NODE_NO_WARNINGS: '01' }); | ||
test({ NODE_NO_WARNINGS: '2' }); | ||
// Don't test the number 1 because it will come through as a string in the | ||
// the child process environment. | ||
test({ NODE_NO_WARNINGS: '1' }); | ||
} |