yeet

node_modules/array-reduce/test/reduce.js

@@ -0,0 +1,85 @@
+var reduce = require('../');
+var test = require('tape');
+
+test('numeric reduces', function (t) {
+    t.plan(6);
+    
+    var xs = [ 1, 2, 3, 4 ];
+    t.equal(
+        reduce(xs, function (acc, x) { return acc + x }, 0),
+        10
+    );
+    t.equal(
+        reduce(xs, function (acc, x) { return acc + x }, 100),
+        110
+    );
+    t.equal(
+        reduce(xs, function (acc, x) { return acc + x }),
+        10
+    );
+    
+    var ys = cripple([ 1, 2, 3, 4 ]);
+    t.equal(
+        reduce(ys, function (acc, x) { return acc + x }, 0),
+        10
+    );
+    t.equal(
+        reduce(ys, function (acc, x) { return acc + x }, 100),
+        110
+    );
+    t.equal(
+        reduce(ys, function (acc, x) { return acc + x }),
+        10
+    );
+});
+
+test('holes', function (t) {
+    t.plan(4);
+    
+    var xs = Array(10);
+    xs[2] = 5; xs[4] = 6; xs[8] = 4;
+    t.equal(
+        reduce(xs, function (acc, x) { return acc + x }),
+        15
+    );
+    t.equal(
+        reduce(xs, function (acc, x) { return acc + x }, 100),
+        115
+    );
+    
+    var ys = cripple(Array(10));
+    ys[2] = 5; ys[4] = 6; ys[8] = 4;
+    t.equal(
+        reduce(ys, function (acc, x) { return acc + x }),
+        15
+    );
+    t.equal(
+        reduce(ys, function (acc, x) { return acc + x }, 100),
+        115
+    );
+});
+
+test('object', function (t) {
+    t.plan(1);
+    var obj = { a: 3, b: 4, c: 5 };
+    var res = reduce(objectKeys(obj), function (acc, key) {
+        acc[key.toUpperCase()] = obj[key] * 111;
+        return acc;
+    }, {});
+    t.deepEqual(res, { A: 333, B: 444, C: 555 });
+});
+
+function cripple (xs) {
+    xs.reduce = undefined;
+    return xs;
+}
+
+var objectKeys = function (obj) {
+    var keys = [];
+    for (var key in obj) {
+        if (hasOwn.call(obj, key)) keys.push(key);
+    }
+    return keys;
+};
+
+var hasOwn = Object.prototype.hasOwnProperty;