| // Copyright 2021 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-intl.numberformat.prototype.formattoparts |
| description: Checks handling of the signDisplay option to the NumberFormat constructor. |
| locale: [en-US] |
| features: [Intl.NumberFormat-v3] |
| ---*/ |
| |
| function verifyFormatParts(actual, expected, message) { |
| assert.sameValue(Array.isArray(expected), true, `${message}: expected is Array`); |
| assert.sameValue(Array.isArray(actual), true, `${message}: actual is Array`); |
| assert.sameValue(actual.length, expected.length, `${message}: length`); |
| |
| for (let i = 0; i < actual.length; ++i) { |
| assert.sameValue(actual[i].type, expected[i].type, `${message}: parts[${i}].type`); |
| assert.sameValue(actual[i].value, expected[i].value, `${message}: parts[${i}].value`); |
| } |
| } |
| |
| const signDisplay = "negative"; |
| const nf = new Intl.NumberFormat("en-US", {signDisplay: "negative"}); |
| |
| verifyFormatParts(nf.formatToParts(-Infinity), [{"type":"minusSign","value":"-"},{"type":"infinity","value":"∞"}], `-Infinity (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(-987), [{"type":"minusSign","value":"-"},{"type":"integer","value":"987"}], `-987 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(-0.0001), [{"type":"integer","value":"0"}], `-0.0001 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(-0), [{"type":"integer","value":"0"}], `-0 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(0), [{"type":"integer","value":"0"}], `0 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(0.0001), [{"type":"integer","value":"0"}], `0.0001 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(987), [{"type":"integer","value":"987"}], `987 (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(Infinity), [{"type":"infinity","value":"∞"}], `Infinity (${signDisplay})`); |
| verifyFormatParts(nf.formatToParts(NaN), [{"type":"nan","value":"NaN"}], `NaN (${signDisplay})`); |