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backport: v7.x - #11122 - test: increase coverage of buffer #11312

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backport: v7.x - #11122 - test: increase coverage of buffer #11312

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2 changes: 2 additions & 0 deletions test/parallel/test-buffer-compare-offset.js
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ assert.strictEqual(-1, a.compare(b));
// Equivalent to a.compare(b).
assert.strictEqual(-1, a.compare(b, 0));
assert.strictEqual(-1, a.compare(b, '0'));
assert.strictEqual(-1, a.compare(b, undefined));

// Equivalent to a.compare(b).
assert.strictEqual(-1, a.compare(b, 0, undefined, 0));
Expand Down Expand Up @@ -63,5 +64,6 @@ assert.throws(() => a.compare(b, 0, 1, 0, 100), oor);
assert.throws(() => a.compare(b, -1), oor);
assert.throws(() => a.compare(b, 0, '0xff'), oor);
assert.throws(() => a.compare(b, 0, Infinity), oor);
assert.throws(() => a.compare(b, 0, 1, -1), oor);
assert.throws(() => a.compare(b, -Infinity, Infinity), oor);
assert.throws(() => a.compare(), /Argument must be a Buffer/);
11 changes: 11 additions & 0 deletions test/parallel/test-buffer-write-noassert.js
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Expand Up @@ -20,6 +20,17 @@ function write(funx, args, result, res) {
);
}

{
const error = /Int/.test(funx) ?
/^TypeError: "buffer" argument must be a Buffer instance$/ :
/^TypeError: argument should be a Buffer$/;

assert.throws(
() => Buffer.alloc(9)[funx].apply(new Uint32Array(1), args),
error
);
}

{
const buf2 = Buffer.alloc(9);
assert.strictEqual(buf2[funx](...args, true), result);
Expand Down