yeet

node_modules/array-map/test/map.js

@@ -0,0 +1,77 @@
+var map = require('../');
+var test = require('tape');
+
+test('numbers -> letters', function (t) {
+    t.plan(2);
+    var a = map([97,98,99], function (c) {
+        return String.fromCharCode(c);
+    });
+    t.equal(a.join(''), 'abc');
+    
+    var b = map(cripple([97,98,99]), function (c) {
+        return String.fromCharCode(c);
+    });
+    t.equal(b.join(''), 'abc');
+});
+
+test('elements and indexes', function (t) {
+    t.plan(8);
+    var x = { q: 5 }, y = 3, z = null;
+    
+    t.deepEqual(
+        map([x,y,z], function (c, i) { return i }),
+        [ 0, 1, 2 ],
+        'index check'
+    );
+    t.deepEqual(
+        map([x,y,z], function (c, i) { return i }),
+        [ 0, 1, 2 ],
+        'crippled index check'
+    );
+    
+    var xs0 = [ x, y, z ];
+    map(xs0, function (c, i, xs) {
+        t.strictEqual(xs, xs0, 'argument[2]');
+    });
+    var xs1 = [ x, y, z ];
+    map(xs1, function (c, i, xs) {
+        t.strictEqual(xs, xs1, 'crippled argument[2]');
+    });
+});
+
+test('ignore holes', function (t) {
+    t.plan(2);
+    t.deepEqual(
+        map(new Array(5), function (x) { return x }),
+        []
+    );
+    t.deepEqual(
+        map(cripple(new Array(5)), function (x) { return x }),
+        []
+    );
+});
+
+test('sparse map', function (t) {
+    t.plan(2);
+    var xs = new Array(5);
+    xs[2] = 'a';
+    xs[4] = 'b';
+    t.equal(
+        map(xs, function (x, i) { return x + i }).join(''),
+        'a2b4'
+    );
+    
+    var ys = new Array(5);
+    ys[2] = 'a';
+    ys[4] = 'b';
+    t.equal(
+        map(cripple(xs), function (x, i) { return x + i }).join(''),
+        'a2b4'
+    );
+    t.end();
+});
+
+function cripple (xs) {
+    xs.map = undefined;
+    return xs;
+}