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Unified Diff: test/mjsunit/harmony/array-findindex.js

Issue 21079003: Add new Harmony methods to Array.prototype object. (Closed) Base URL: git://github.com/v8/v8.git@master
Patch Set: review changes Created 7 years, 5 months ago
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Index: test/mjsunit/harmony/array-findindex.js
diff --git a/test/mjsunit/harmony/array-findindex.js b/test/mjsunit/harmony/array-findindex.js
new file mode 100644
index 0000000000000000000000000000000000000000..928cad79e437fb70aedda7c3677c6252e91605a2
--- /dev/null
+++ b/test/mjsunit/harmony/array-findindex.js
@@ -0,0 +1,280 @@
+// 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);
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