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denoland-deno/tests/napi/bigint_test.js

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertThrows, loadTestLibrary } from "./common.js";
const bi = loadTestLibrary();
Deno.test("cases", function () {
const cases = [
0n,
-0n,
1n,
-1n,
100n,
2121n,
-1233n,
986583n,
-976675n,
98765432213456789876546896323445679887645323232436587988766545658n,
-4350987086545760976737453646576078997096876957864353245245769809n,
];
for (const num of cases) {
if (num > -(2n ** 63n) && num < 2n ** 63n) {
assertEquals(bi.testInt64(num), num);
assertEquals(bi.isLossless(num, true), true);
} else {
assertEquals(bi.isLossless(num, true), false);
}
if (num >= 0 && num < 2n ** 64n) {
assertEquals(bi.testUint64(num), num);
assertEquals(bi.isLossless(num, false), true);
} else {
assertEquals(bi.isLossless(num, false), false);
}
assertEquals(bi.testWords(num), num);
}
});
Deno.test(
// TODO(bartlomieju): fix this test
{ ignore: true },
function tooBigBigInt() {
assertThrows(
() => bi.createTooBigBigInt(),
Error,
"Invalid argument",
);
},
);
Deno.test(
// TODO(bartlomieju): fix this test
{ ignore: true },
function exceptionForwarding() {
assertThrows(
() => bi.makeBigIntWordsThrow(),
Error,
"Maximum BigInt size exceeded",
);
},
);