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test: make url-util-format engine agnostic #21141

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test: make url-util-format engine agnostic #21141

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test: make url-util-format engine agnostic
Trott Jun 4, 2018
ec4cf56
squash! cjihrig nit
Trott Jun 7, 2018
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15 changes: 12 additions & 3 deletions test/parallel/test-util-format.js
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Original file line number Diff line number Diff line change
Expand Up @@ -44,9 +44,18 @@ assert.strictEqual(util.format(symbol), 'Symbol(foo)');
assert.strictEqual(util.format('foo', symbol), 'foo Symbol(foo)');
assert.strictEqual(util.format('%s', symbol), 'Symbol(foo)');
assert.strictEqual(util.format('%j', symbol), 'undefined');
assert.throws(function() {
util.format('%d', symbol);
}, /^TypeError: Cannot convert a Symbol value to a number$/);
assert.throws(
() => { util.format('%d', symbol); },
(e) => {
// The error should be a TypeError.
if (!(e instanceof TypeError))
return false;

// The error should be from the JS engine and not from Node.js.
// JS engine errors do not have the `code` property.
return e.code === undefined;
}
);

// Number format specifier
assert.strictEqual(util.format('%d'), '%d');
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