Implemented Array.prototype.push()

JerryScript-DCO-1.0-Signed-off-by: Ilyong Cho ily.cho@samsung.com

tests/jerry/array.js

@@ -81,3 +81,28 @@ assert (c[3] === '3');
 b[0] = 1;
 c[0] += b[0];
 assert (c[0] == 1);
+
+var len;
+var d = [];
+assert (d.length === 0);
+len = d.push();
+assert (d.length === 0);
+assert (d.length === len);
+len = d.push(1);
+assert (d.length === 1);
+assert (d.length === len);
+len = d.push(2);
+assert (d.length === 2);
+assert (d.length === len);
+len = d.push('a');
+assert (d.length === 3);
+assert (d.length === len);
+len = d.push('b', 'c', 3);
+assert (d.length == 6);
+assert (d.length === len);
+assert (d[0] === 1);
+assert (d[1] === 2);
+assert (d[2] === 'a');
+assert (d[3] === 'b');
+assert (d[4] === 'c');
+assert (d[5] === 3);