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36 lines
1.9 KiB
JavaScript
36 lines
1.9 KiB
JavaScript
// Copyright (C) 2017 Josh Wolfe. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: BigInt.asUintN type coercion for bits parameter
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esid: pending
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info: |
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BigInt.asUintN ( bits, bigint )
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1. Let bits be ? ToIndex(bits).
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features: [BigInt]
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---*/
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assert.sameValue(BigInt.asUintN(0, 1n), 0n);
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assert.sameValue(BigInt.asUintN(1, 1n), 1n);
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assert.sameValue(BigInt.asUintN(-0.9, 1n), 0n, "ToIndex: truncate towards 0");
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assert.sameValue(BigInt.asUintN(0.9, 1n), 0n, "ToIndex: truncate towards 0");
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assert.sameValue(BigInt.asUintN(NaN, 1n), 0n, "ToIndex: NaN => 0");
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assert.sameValue(BigInt.asUintN(undefined, 1n), 0n, "ToIndex: undefined => NaN => 0");
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assert.sameValue(BigInt.asUintN(null, 1n), 0n, "ToIndex: null => 0");
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assert.sameValue(BigInt.asUintN(false, 1n), 0n, "ToIndex: false => 0");
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assert.sameValue(BigInt.asUintN(true, 1n), 1n, "ToIndex: true => 1");
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assert.sameValue(BigInt.asUintN("0", 1n), 0n, "ToIndex: parse Number");
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assert.sameValue(BigInt.asUintN("1", 1n), 1n, "ToIndex: parse Number");
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assert.sameValue(BigInt.asUintN("", 1n), 0n, "ToIndex: parse Number => NaN => 0");
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assert.sameValue(BigInt.asUintN("foo", 1n), 0n, "ToIndex: parse Number => NaN => 0");
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assert.sameValue(BigInt.asUintN("true", 1n), 0n, "ToIndex: parse Number => NaN => 0");
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assert.sameValue(BigInt.asUintN(3, 10n), 2n);
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assert.sameValue(BigInt.asUintN("3", 10n), 2n, "toIndex: parse Number");
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assert.sameValue(BigInt.asUintN(3.9, 10n), 2n, "toIndex: truncate towards 0");
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assert.sameValue(BigInt.asUintN("3.9", 10n), 2n, "toIndex: parse Number => truncate towards 0");
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assert.sameValue(BigInt.asUintN([0], 1n), 0n, 'ToIndex: [0].toString() => "0" => 0');
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assert.sameValue(BigInt.asUintN(["1"], 1n), 1n, 'ToIndex: ["1"].toString() => "1" => 1');
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assert.sameValue(BigInt.asUintN({}, 1n), 0n,
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'ToIndex: ({}).toString() => "[object Object]" => NaN => 0');
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assert.sameValue(BigInt.asUintN([], 1n), 0n, 'ToIndex: [].toString() => "" => NaN => 0');
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