text: // Copyright 2019 Igalia, S.L. 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 engineering and scientific notations.
  locale: [ja-JP]
  features: [Intl.NumberFormat-unified]
  ---*/
  
  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 tests = [
    [
      "0.000345",
      [{"type":"integer","value":"345"},{"type":"exponentSeparator","value":"E"},{"type":"exponentMinusSign","value":"-"},{"type":"exponentInteger","value":"6"}],
      [{"type":"integer","value":"3"},{"type":"decimal","value":"."},{"type":"fraction","value":"45"},{"type":"exponentSeparator","value":"E"},{"type":"exponentMinusSign","value":"-"},{"type":"exponentInteger","value":"4"}],
    ],
    [
      "0.345",
      [{"type":"integer","value":"345"},{"type":"exponentSeparator","value":"E"},{"type":"exponentMinusSign","value":"-"},{"type":"exponentInteger","value":"3"}],
      [{"type":"integer","value":"3"},{"type":"decimal","value":"."},{"type":"fraction","value":"45"},{"type":"exponentSeparator","value":"E"},{"type":"exponentMinusSign","value":"-"},{"type":"exponentInteger","value":"1"}],
    ],
    [
      "3.45",
      [{"type":"integer","value":"3"},{"type":"decimal","value":"."},{"type":"fraction","value":"45"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"0"}],
      [{"type":"integer","value":"3"},{"type":"decimal","value":"."},{"type":"fraction","value":"45"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"0"}],
    ],
    [
      "34.5",
      [{"type":"integer","value":"34"},{"type":"decimal","value":"."},{"type":"fraction","value":"5"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"0"}],
      [{"type":"integer","value":"3"},{"type":"decimal","value":"."},{"type":"fraction","value":"45"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"1"}],
    ],
    [
      "543",
      [{"type":"integer","value":"543"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"0"}],
      [{"type":"integer","value":"5"},{"type":"decimal","value":"."},{"type":"fraction","value":"43"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"2"}],
    ],
    [
      "5430",
      [{"type":"integer","value":"5"},{"type":"decimal","value":"."},{"type":"fraction","value":"43"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"3"}],
      [{"type":"integer","value":"5"},{"type":"decimal","value":"."},{"type":"fraction","value":"43"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"3"}],
    ],
    [
      "543000",
      [{"type":"integer","value":"543"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"3"}],
      [{"type":"integer","value":"5"},{"type":"decimal","value":"."},{"type":"fraction","value":"43"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"5"}],
    ],
    [
      "543211.1",
      [{"type":"integer","value":"543"},{"type":"decimal","value":"."},{"type":"fraction","value":"211"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"3"}],
      [{"type":"integer","value":"5"},{"type":"decimal","value":"."},{"type":"fraction","value":"432"},{"type":"exponentSeparator","value":"E"},{"type":"exponentInteger","value":"5"}],
    ],
  ];
  
  for (const [number, engineering, scientific] of tests) {
    const nfEngineering = (new Intl.NumberFormat("ja-JP", { notation: "engineering" }));
    verifyFormatParts(nfEngineering.formatToParts(number), engineering, `${number} - engineering`);
    const nfScientific = (new Intl.NumberFormat("ja-JP", { notation: "scientific" }));
    verifyFormatParts(nfScientific.formatToParts(number), scientific, `${number} - scientific`);
  }
  
  