exports[`test array_lib.js 1`] = `
"/* @flow */
function foo(x:string) { }

var a = [0];
var b = a.map(function (x) { foo(x); return \"\" + x; });

var c: number = a[0];
var d: number = b[0];

var e:Array<string> = a.reverse();

var f = [\"\"];
var g:number = f.map(function () { return 0; })[0];

var h: Array<number> = [1,2,3];
var i: Array<string> = [\'a\', \'b\', \'c\'];
var j: Array<number | string> = h.concat(i);
var k: Array<number> = h.concat(h);
var l: Array<number> = h.concat(1,2,3);
var m: Array<number | string> = h.concat(\'a\', \'b\', \'c\');
var n: Array<number> = h.concat(\'a\', \'b\', \'c\'); // Error

function reduce_test() {
  /* Adapted from the following source:
   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
   */
  [0, 1, 2, 3, 4].reduce(function(previousValue, currentValue, index, array) {
    return previousValue + currentValue + array[index];
  });

  [0, 1, 2, 3, 4].reduce(function(previousValue, currentValue, index, array) {
    return previousValue + currentValue + array[index];
  }, 10);

  var total = [0, 1, 2, 3].reduce(function(a, b) {
    return a + b;
  });

  var flattened = [[0, 1], [2, 3], [4, 5]].reduce(function(a, b) {
    return a.concat(b);
  });

  /* Added later, because the above is insufficient */

  // acc is element type of array when no init is provided
  [\"\"].reduce((acc, str) => acc * str.length); // error, string ~> number
  [\"\"].reduceRight((acc, str) => acc * str.length); // error, string ~> number
}

function from_test() {
  var a: Array<string> = Array.from([1, 2, 3], function(val, index) {
    return index % 2 ? \"foo\" : String(val);
  });
  var b: Array<string> = Array.from([1, 2, 3], function(val) {
    return String(val);
  });
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/* @flow */
// Error
/* Adapted from the following source:
   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
   */
/* Added later, because the above is insufficient */
// acc is element type of array when no init is provided
// error, string ~> number
// error, string ~> number
function foo(x: string) {}

var a = [ 0 ];
var b = a.map(function(x) {
  foo(x);

  return \"\" + x;
});
var c: number = a[0];
var d: number = b[0];
var e: Array<string> = a.reverse();
var f = [ \"\" ];
var g: number = f.map(function() {
  return 0;
})[0];
var h: Array<number> = [ 1, 2, 3 ];
var i: Array<string> = [ \"a\", \"b\", \"c\" ];
var j: Array<number | string> = h.concat(i);
var k: Array<number> = h.concat(h);
var l: Array<number> = h.concat(1, 2, 3);
var m: Array<number | string> = h.concat(\"a\", \"b\", \"c\");
var n: Array<number> = h.concat(\"a\", \"b\", \"c\");

function reduce_test() {
  [ 0, 1, 2, 3, 4 ].reduce(function(previousValue, currentValue, index, array) {
    return previousValue + currentValue + array[index];
  });

  [ 0, 1, 2, 3, 4 ].reduce(function(previousValue, currentValue, index, array) {
      return previousValue + currentValue + array[index];
    }, 10);

  var total = [ 0, 1, 2, 3 ].reduce(function(a, b) {
    return a + b;
  });
  var flattened = [ [ 0, 1 ], [ 2, 3 ], [ 4, 5 ] ].reduce(function(a, b) {
    return a.concat(b);
  });

  [ \"\" ].reduce((acc, str) => acc * str.length);

  [ \"\" ].reduceRight((acc, str) => acc * str.length);
}

function from_test() {
  var a: Array<string> = Array.from([ 1, 2, 3 ], function(val, index) {
    return (index % 2 ? \"foo\" : String(val));
  });
  var b: Array<string> = Array.from([ 1, 2, 3 ], function(val) {
    return String(val);
  });
}
"
`;