Version 3.20.15

test/mjsunit/harmony/array-findindex.js

-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-// Flags: --harmony-arrays
-
-assertEquals(1, Array.prototype.findIndex.length);
-
-var a = [21, 22, 23, 24];
-assertEquals(-1, a.findIndex(function() { return false; }));
-assertEquals(-1, a.findIndex(function(val) { return 121 === val; }));
-assertEquals(0, a.findIndex(function() { return true; }));
-assertEquals(1, a.findIndex(function(val) { return 22 === val; }), undefined);
-assertEquals(2, a.findIndex(function(val) { return 23 === val; }), null);
-assertEquals(3, a.findIndex(function(val) { return 24 === val; }));
-
-
-//
-// Test predicate is not called when array is empty
-//
-(function() {
-  var a = [];
-  var l = -1;
-  var o = -1;
-  var v = -1;
-  var k = -1;
-
-  a.findIndex(function(val, key, obj) {
-    o = obj;
-    l = obj.length;
-    v = val;
-    k = key;
-
-    return false;
-  });
-
-  assertEquals(-1, l);
-  assertEquals(-1, o);
-  assertEquals(-1, v);
-  assertEquals(-1, k);
-})();
-
-
-//
-// Test predicate is called with correct argumetns
-//
-(function() {
-  var a = ["b"];
-  var l = -1;
-  var o = -1;
-  var v = -1;
-  var k = -1;
-
-  var index = a.findIndex(function(val, key, obj) {
-    o = obj;
-    l = obj.length;
-    v = val;
-    k = key;
-
-    return false;
-  });
-
-  assertArrayEquals(a, o);
-  assertEquals(a.length, l);
-  assertEquals("b", v);
-  assertEquals(0, k);
-  assertEquals(-1, index);
-})();
-
-
-//
-// Test predicate is called array.length times
-//
-(function() {
-  var a = [1, 2, 3, 4, 5];
-  var l = 0;
-
-  a.findIndex(function() {
-    l++;
-    return false;
-  });
-
-  assertEquals(a.length, l);
-})();
-
-
-//
-// Test Array.prototype.findIndex works with String
-//
-(function() {
-  var a = "abcd";
-  var l = -1;
-  var o = -1;
-  var v = -1;
-  var k = -1;
-
-  var index = Array.prototype.findIndex.call(a, function(val, key, obj) {
-    o = obj.toString();
-    l = obj.length;
-    v = val;
-    k = key;
-
-    return false;
-  });
-
-  assertEquals(a, o);
-  assertEquals(a.length, l);
-  assertEquals("d", v);
-  assertEquals(3, k);
-  assertEquals(-1, index);
-
-  index = Array.prototype.findIndex.apply(a, [function(val, key, obj) {
-    o = obj.toString();
-    l = obj.length;
-    v = val;
-    k = key;
-
-    return true;
-  }]);
-
-  assertEquals(a, o);
-  assertEquals(a.length, l);
-  assertEquals("a", v);
-  assertEquals(0, k);
-  assertEquals(0, index);
-})();
-
-
-//
-// Test Array.prototype.findIndex works with exotic object
-//
-(function() {
-  var l = -1;
-  var o = -1;
-  var v = -1;
-  var k = -1;
-  var a = {
-    prop1: "val1",
-    prop2: "val2",
-    isValid: function() {
-      return this.prop1 === "val1" && this.prop2 === "val2";
-    }
-  };
-
-  Array.prototype.push.apply(a, [30, 31, 32]);
-
-  var index = Array.prototype.findIndex.call(a, function(val, key, obj) {
-    o = obj;
-    l = obj.length;
-    v = val;
-    k = key;
-
-    return !obj.isValid();
-  });
-
-  assertArrayEquals(a, o);
-  assertEquals(3, l);
-  assertEquals(32, v);
-  assertEquals(2, k);
-  assertEquals(-1, index);
-})();
-
-
-//
-// Test array modifications
-//
-(function() {
-  var a = [1, 2, 3];
-  a.findIndex(function(val) { a.push(val); return false; });
-  assertArrayEquals([1, 2, 3, 1, 2, 3], a);
-  assertEquals(6, a.length);
-
-  a = [1, 2, 3];
-  a.findIndex(function(val, key) { a[key] = ++val; return false; });
-  assertArrayEquals([2, 3, 4], a);
-  assertEquals(3, a.length);
-})();
-
-
-//
-// Test predicate is only called for existing elements
-//
-(function() {
-  var a = new Array(30);
-  a[11] = 21;
-  a[7] = 10;
-  a[29] = 31;
-
-  var count = 0;
-  a.findIndex(function() { count++; return false; });
-  assertEquals(3, count);
-})();
-
-
-//
-// Test thisArg
-//
-(function() {
-  // Test String as a thisArg
-  var index = [1, 2, 3].findIndex(function(val, key) {
-    return this.charAt(Number(key)) === String(val);
-  }, "321");
-  assertEquals(1, index);
-
-  // Test object as a thisArg
-  var thisArg = {
-    elementAt: function(key) {
-      return this[key];
-    }
-  };
-  Array.prototype.push.apply(thisArg, ["c", "b", "a"]);
-
-  index = ["a", "b", "c"].findIndex(function(val, key) {
-    return this.elementAt(key) === val;
-  }, thisArg);
-  assertEquals(1, index);
-})();
-
-// Test exceptions
-assertThrows('Array.prototype.findIndex.call(null, function() { })',
-  TypeError);
-assertThrows('Array.prototype.findIndex.call(undefined, function() { })',
-  TypeError);
-assertThrows('Array.prototype.findIndex.apply(null, function() { }, [])',
-  TypeError);
-assertThrows('Array.prototype.findIndex.apply(undefined, function() { }, [])',
-  TypeError);
-
-assertThrows('[].findIndex(null)', TypeError);
-assertThrows('[].findIndex(undefined)', TypeError);
-assertThrows('[].findIndex(0)', TypeError);
-assertThrows('[].findIndex(true)', TypeError);
-assertThrows('[].findIndex(false)', TypeError);
-assertThrows('[].findIndex("")', TypeError);
-assertThrows('[].findIndex({})', TypeError);
-assertThrows('[].findIndex([])', TypeError);
-assertThrows('[].findIndex(/\d+/)', TypeError);
-
-assertThrows('Array.prototype.findIndex.call({}, null)', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, undefined)', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, 0)', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, true)', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, false)', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, "")', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, {})', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, [])', TypeError);
-assertThrows('Array.prototype.findIndex.call({}, /\d+/)', TypeError);
-
-assertThrows('Array.prototype.findIndex.apply({}, null, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, undefined, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, 0, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, true, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, false, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, "", [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, {}, [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, [], [])', TypeError);
-assertThrows('Array.prototype.findIndex.apply({}, /\d+/, [])', TypeError);