Add m-esr52 at 52.6.0

1 files changed, 463 insertions, 0 deletions

diff --git a/addon-sdk/source/test/test-functional.js b/addon-sdk/source/test/test-functional.js
new file mode 100644
index 000000000..02ae15fc6
--- /dev/null
+++ b/addon-sdk/source/test/test-functional.js
@@ -0,0 +1,463 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+const { setTimeout } = require('sdk/timers');
+const utils = require('sdk/lang/functional');
+const { invoke, defer, partial, compose, memoize, once, is, isnt,
+  delay, wrap, curry, chainable, field, query, isInstance, debounce, throttle
+} = utils;
+const { LoaderWithHookedConsole } = require('sdk/test/loader');
+
+exports['test forwardApply'] = function(assert) {
+  function sum(b, c) { return this.a + b + c; }
+  assert.equal(invoke(sum, [2, 3], { a: 1 }), 6,
+               'passed arguments and pseoude-variable are used');
+
+  assert.equal(invoke(sum.bind({ a: 2 }), [2, 3], { a: 1 }), 7,
+               'bounded `this` pseoudo variable is used');
+};
+
+exports['test deferred function'] = function(assert, done) {
+  let nextTurn = false;
+  function sum(b, c) {
+    assert.ok(nextTurn, 'enqueued is called in next turn of event loop');
+    assert.equal(this.a + b + c, 6,
+                 'passed arguments an pseoude-variable are used');
+    done();
+  }
+
+  let fixture = { a: 1, method: defer(sum) };
+  fixture.method(2, 3);
+  nextTurn = true;
+};
+
+exports['test partial function'] = function(assert) {
+  function sum(b, c) { return this.a + b + c; }
+
+  let foo = { a : 5 };
+
+  foo.sum7 = partial(sum, 7);
+  foo.sum8and4 = partial(sum, 8, 4);
+
+  assert.equal(foo.sum7(2), 14, 'partial one arguments works');
+
+  assert.equal(foo.sum8and4(), 17, 'partial both arguments works');
+};
+
+exports["test curry defined numeber of arguments"] = function(assert) {
+  var sum = curry(function(a, b, c) {
+    return a + b + c;
+  });
+
+  assert.equal(sum(2, 2, 1), 5, "sum(2, 2, 1) => 5");
+  assert.equal(sum(2, 4)(1), 7, "sum(2, 4)(1) => 7");
+  assert.equal(sum(2)(4, 2), 8, "sum(2)(4, 2) => 8");
+  assert.equal(sum(2)(4)(3), 9, "sum(2)(4)(3) => 9");
+};
+
+exports['test compose'] = function(assert) {
+  let greet = function(name) { return 'hi: ' + name; };
+  let exclaim = function(sentence) { return sentence + '!'; };
+
+  assert.equal(compose(exclaim, greet)('moe'), 'hi: moe!',
+               'can compose a function that takes another');
+
+  assert.equal(compose(greet, exclaim)('moe'), 'hi: moe!',
+               'in this case, the functions are also commutative');
+
+  let target = {
+    name: 'Joe',
+    greet: compose(function exclaim(sentence) {
+      return sentence + '!';
+    }, function(title) {
+      return 'hi : ' + title + ' ' + this.name;
+    })
+  };
+
+  assert.equal(target.greet('Mr'), 'hi : Mr Joe!',
+               'this can be passed in');
+  assert.equal(target.greet.call({ name: 'Alex' }, 'Dr'), 'hi : Dr Alex!',
+               'this can be applied');
+
+  let single = compose(function(value) {
+    return value + ':suffix';
+  });
+
+  assert.equal(single('text'), 'text:suffix', 'works with single function');
+
+  let identity = compose();
+  assert.equal(identity('bla'), 'bla', 'works with zero functions');
+};
+
+exports['test wrap'] = function(assert) {
+  let greet = function(name) { return 'hi: ' + name; };
+  let backwards = wrap(greet, function(f, name) {
+    return f(name) + ' ' + name.split('').reverse().join('');
+  });
+
+  assert.equal(backwards('moe'), 'hi: moe eom',
+               'wrapped the saluation function');
+
+  let inner = function () { return 'Hello '; };
+  let target = {
+    name: 'Matteo',
+    hi: wrap(inner, function(f) { return f() + this.name; })
+  };
+
+  assert.equal(target.hi(), 'Hello Matteo', 'works with this');
+
+  function noop() { }
+  let wrapped = wrap(noop, function(f) {
+    return Array.slice(arguments);
+  });
+
+  let actual = wrapped([ 'whats', 'your' ], 'vector', 'victor');
+  assert.deepEqual(actual, [ noop, ['whats', 'your'], 'vector', 'victor' ],
+                   'works with fancy stuff');
+};
+
+exports['test memoize'] = function(assert) {
+  const fib = n => n < 2 ? n : fib(n - 1) + fib(n - 2);
+  let fibnitro = memoize(fib);
+
+  assert.equal(fib(10), 55,
+        'a memoized version of fibonacci produces identical results');
+  assert.equal(fibnitro(10), 55,
+        'a memoized version of fibonacci produces identical results');
+
+  function o(key, value) { return value; }
+  let oo = memoize(o), v1 = {}, v2 = {};
+
+
+  assert.equal(oo(1, v1), v1, 'returns value back');
+  assert.equal(oo(1, v2), v1, 'memoized by a first argument');
+  assert.equal(oo(2, v2), v2, 'returns back value if not memoized');
+  assert.equal(oo(2), v2, 'memoized new value');
+  assert.notEqual(oo(1), oo(2), 'values do not override');
+  assert.equal(o(3, v2), oo(2, 3), 'returns same value as un-memoized');
+
+  let get = memoize(function(attribute) { return this[attribute]; });
+  let target = { name: 'Bob', get: get };
+
+  assert.equal(target.get('name'), 'Bob', 'has correct `this`');
+  assert.equal(target.get.call({ name: 'Jack' }, 'name'), 'Bob',
+               'name is memoized');
+  assert.equal(get('name'), 'Bob', 'once memoized can be called without this');
+};
+
+exports['test delay'] = function(assert, done) {
+  let delayed = false;
+  delay(function() {
+    assert.ok(delayed, 'delayed the function');
+    done();
+  }, 1);
+  delayed = true;
+};
+
+exports['test delay with this'] = function(assert, done) {
+  let context = {};
+  delay.call(context, function(name) {
+    assert.equal(this, context, 'this was passed in');
+    assert.equal(name, 'Tom', 'argument was passed in');
+    done();
+  }, 10, 'Tom');
+};
+
+exports['test once'] = function(assert) {
+  let n = 0;
+  let increment = once(function() { n ++; });
+
+  increment();
+  increment();
+
+  assert.equal(n, 1, 'only incremented once');
+
+  let target = {
+    state: 0,
+    update: once(function() {
+      return this.state ++;
+    })
+  };
+
+  target.update();
+  target.update();
+
+  assert.equal(target.state, 1, 'this was passed in and called only once');
+};
+
+exports['test once with argument'] = function(assert) {
+  let n = 0;
+  let increment = once(a => n++);
+
+  increment();
+  increment('foo');
+
+  assert.equal(n, 1, 'only incremented once');
+
+  increment();
+  increment('foo');
+
+  assert.equal(n, 1, 'only incremented once');
+};
+
+exports['test complement'] = assert => {
+  let { complement } = require("sdk/lang/functional");
+
+  let isOdd = x => Boolean(x % 2);
+
+  assert.equal(isOdd(1), true);
+  assert.equal(isOdd(2), false);
+
+  let isEven = complement(isOdd);
+
+  assert.equal(isEven(1), false);
+  assert.equal(isEven(2), true);
+
+  let foo = {};
+  let isFoo = function() { return this === foo; };
+  let insntFoo = complement(isFoo);
+
+  assert.equal(insntFoo.call(foo), false);
+  assert.equal(insntFoo.call({}), true);
+};
+
+exports['test constant'] = assert => {
+  let { constant } = require("sdk/lang/functional");
+
+  let one = constant(1);
+
+  assert.equal(one(1), 1);
+  assert.equal(one(2), 1);
+};
+
+exports['test apply'] = assert => {
+  let { apply } = require("sdk/lang/functional");
+
+  let dashify = (...args) => args.join("-");
+
+  assert.equal(apply(dashify, 1, [2, 3]), "1-2-3");
+  assert.equal(apply(dashify, "a"), "a");
+  assert.equal(apply(dashify, ["a", "b"]), "a-b");
+  assert.equal(apply(dashify, ["a", "b"], "c"), "a,b-c");
+  assert.equal(apply(dashify, [1, 2], [3, 4]), "1,2-3-4");
+};
+
+exports['test flip'] = assert => {
+  let { flip } = require("sdk/lang/functional");
+
+  let append = (left, right) => left + " " + right;
+  let prepend = flip(append);
+
+  assert.equal(append("hello", "world"), "hello world");
+  assert.equal(prepend("hello", "world"), "world hello");
+
+  let wrap = function(left, right) {
+    return left + " " + this + " " + right;
+  };
+  let invertWrap = flip(wrap);
+
+  assert.equal(wrap.call("@", "hello", "world"), "hello @ world");
+  assert.equal(invertWrap.call("@", "hello", "world"), "world @ hello");
+
+  let reverse = flip((...args) => args);
+
+  assert.deepEqual(reverse(1, 2, 3, 4), [4, 3, 2, 1]);
+  assert.deepEqual(reverse(1), [1]);
+  assert.deepEqual(reverse(), []);
+
+  // currying still works
+  let prependr = curry(prepend);
+
+  assert.equal(prependr("hello", "world"), "world hello");
+  assert.equal(prependr("hello")("world"), "world hello");
+};
+
+exports["test when"] = assert => {
+  let { when } = require("sdk/lang/functional");
+
+  let areNums = (...xs) => xs.every(x => typeof(x) === "number");
+
+  let sum = when(areNums, (...xs) => xs.reduce((y, x) => x + y, 0));
+
+  assert.equal(sum(1, 2, 3), 6);
+  assert.equal(sum(1, 2, "3"), undefined);
+
+  let multiply = when(areNums,
+                      (...xs) => xs.reduce((y, x) => x * y, 1),
+                      (...xs) => xs);
+
+  assert.equal(multiply(2), 2);
+  assert.equal(multiply(2, 3), 6);
+  assert.deepEqual(multiply(2, "4"), [2, "4"]);
+
+  function Point(x, y) {
+    this.x = x;
+    this.y = y;
+  }
+
+  let isPoint = x => x instanceof Point;
+
+  let inc = when(isPoint, ({x, y}) => new Point(x + 1, y + 1));
+
+  assert.equal(inc({}), undefined);
+  assert.deepEqual(inc(new Point(0, 0)), { x: 1, y: 1 });
+
+  let axis = when(isPoint,
+                  ({ x, y }) => [x, y],
+                  _ => [0, 0]);
+
+  assert.deepEqual(axis(new Point(1, 4)), [1, 4]);
+  assert.deepEqual(axis({ foo: "bar" }), [0, 0]);
+};
+
+exports["test chainable"] = function(assert) {
+  let Player = function () { this.volume = 5; };
+  Player.prototype = {
+    setBand: chainable(function (band) { return (this.band = band); }),
+    incVolume: chainable(function () { return this.volume++; })
+  };
+  let player = new Player();
+  player
+    .setBand('Animals As Leaders')
+    .incVolume().incVolume().incVolume().incVolume().incVolume().incVolume();
+
+  assert.equal(player.band, 'Animals As Leaders', 'passes arguments into chained');
+  assert.equal(player.volume, 11, 'accepts no arguments in chain');
+};
+
+exports["test field"] = assert => {
+  let Num = field("constructor", 0);
+  assert.equal(Num.name, Number.name);
+  assert.ok(typeof(Num), "function");
+
+  let x = field("x");
+
+  [
+    [field("foo", { foo: 1 }), 1],
+    [field("foo")({ foo: 1 }), 1],
+    [field("bar", {}), undefined],
+    [field("bar")({}), undefined],
+    [field("hey", undefined), undefined],
+    [field("hey")(undefined), undefined],
+    [field("how", null), null],
+    [field("how")(null), null],
+    [x(1), undefined],
+    [x(undefined), undefined],
+    [x(null), null],
+    [x({ x: 1 }), 1],
+    [x({ x: 2 }), 2],
+  ].forEach(([actual, expected]) => assert.equal(actual, expected));
+};
+
+exports["test query"] = assert => {
+  let Num = query("constructor", 0);
+  assert.equal(Num.name, Number.name);
+  assert.ok(typeof(Num), "function");
+
+  let x = query("x");
+  let xy = query("x.y");
+
+  [
+    [query("foo", { foo: 1 }), 1],
+    [query("foo")({ foo: 1 }), 1],
+    [query("foo.bar", { foo: { bar: 2 } }), 2],
+    [query("foo.bar")({ foo: { bar: 2 } }), 2],
+    [query("foo.bar", { foo: 1 }), undefined],
+    [query("foo.bar")({ foo: 1 }), undefined],
+    [x(1), undefined],
+    [x(undefined), undefined],
+    [x(null), null],
+    [x({ x: 1 }), 1],
+    [x({ x: 2 }), 2],
+    [xy(1), undefined],
+    [xy(undefined), undefined],
+    [xy(null), null],
+    [xy({ x: 1 }), undefined],
+    [xy({ x: 2 }), undefined],
+    [xy({ x: { y: 1 } }), 1],
+    [xy({ x: { y: 2 } }), 2]
+  ].forEach(([actual, expected]) => assert.equal(actual, expected));
+};
+
+exports["test isInstance"] = assert => {
+  function X() {}
+  function Y() {}
+  let isX = isInstance(X);
+
+  [
+    isInstance(X, new X()),
+    isInstance(X)(new X()),
+    !isInstance(X, new Y()),
+    !isInstance(X)(new Y()),
+    isX(new X()),
+    !isX(new Y())
+  ].forEach(x => assert.ok(x));
+};
+
+exports["test is"] = assert => {
+
+  assert.deepEqual([ 1, 0, 1, 0, 1 ].map(is(1)),
+                   [ true, false, true, false, true ],
+                   "is can be partially applied");
+
+  assert.ok(is(1, 1));
+  assert.ok(!is({}, {}));
+  assert.ok(is()(1)()(1), "is is curried");
+  assert.ok(!is()(1)()(2));
+};
+
+exports["test isnt"] = assert => {
+
+  assert.deepEqual([ 1, 0, 1, 0, 1 ].map(isnt(0)),
+                   [ true, false, true, false, true ],
+                   "is can be partially applied");
+
+  assert.ok(!isnt(1, 1));
+  assert.ok(isnt({}, {}));
+  assert.ok(!isnt()(1)()(1));
+  assert.ok(isnt()(1)()(2));
+};
+
+exports["test debounce"] = (assert, done) => {
+  let counter = 0;
+  let fn = debounce(() => counter++, 100);
+
+  new Array(10).join(0).split("").forEach(fn);
+
+  assert.equal(counter, 0, "debounce does not fire immediately");
+  setTimeout(() => {
+    assert.equal(counter, 1, "function called after wait time");
+    fn();
+    setTimeout(() => {
+      assert.equal(counter, 2, "function able to be called again after wait");
+      done();
+    }, 150);
+  }, 200);
+};
+
+exports["test throttle"] = (assert, done) => {
+  let called = 0;
+  let attempt = 0;
+  let atleast100ms = false;
+  let throttledFn = throttle(() => {
+    called++;
+    if (called === 2) {
+      assert.equal(attempt, 10, "called twice, but attempted 10 times");
+      fn();
+    }
+    if (called === 3) {
+      assert.ok(atleast100ms, "atleast 100ms have passed");
+      assert.equal(attempt, 11, "called third, waits for delay to happen");
+      done();
+    }
+  }, 200);
+  let fn = () => ++attempt && throttledFn();
+
+  setTimeout(() => atleast100ms = true, 100);
+
+  new Array(11).join(0).split("").forEach(fn);
+};
+
+require('sdk/test').run(exports);