join-exceed-max-string-length.js

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load(libdir + "asserts.js");

// Reserving more memory than `JSString::MAX_LENGTH` in StringBuilder throws an

// InternalError right away.

//

// Test using `join` which will attempt to reserve

// `typedarray.length + max(separator.length * (typedarray.length - 1), 0)`

// characters.

// Large typed array with a small separator string.

var large = new Int8Array(1024 ** 3);

assertThrowsInstanceOf(() => large.join(""), InternalError);

assertThrowsInstanceOf(() => large.join(","), InternalError);

// Small typed array with a large separator string.

var sep = ",".repeat(1 << 21);

var small = new Int8Array(1024);

assertThrowsInstanceOf(() => small.join(sep), InternalError);