+++ /dev/null
-// jscs:disable requireUseStrict
-
-var test = require('tape');
-
-var functionBind = require('../implementation');
-var getCurrentContext = function () { return this; };
-
-test('functionBind is a function', function (t) {
- t.equal(typeof functionBind, 'function');
- t.end();
-});
-
-test('non-functions', function (t) {
- var nonFunctions = [true, false, [], {}, 42, 'foo', NaN, /a/g];
- t.plan(nonFunctions.length);
- for (var i = 0; i < nonFunctions.length; ++i) {
- try { functionBind.call(nonFunctions[i]); } catch (ex) {
- t.ok(ex instanceof TypeError, 'throws when given ' + String(nonFunctions[i]));
- }
- }
- t.end();
-});
-
-test('without a context', function (t) {
- t.test('binds properly', function (st) {
- var args, context;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- context = this;
- })
- };
- namespace.func(1, 2, 3);
- st.deepEqual(args, [1, 2, 3]);
- st.equal(context, getCurrentContext.call());
- st.end();
- });
-
- t.test('binds properly, and still supplies bound arguments', function (st) {
- var args, context;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- context = this;
- }, undefined, 1, 2, 3)
- };
- namespace.func(4, 5, 6);
- st.deepEqual(args, [1, 2, 3, 4, 5, 6]);
- st.equal(context, getCurrentContext.call());
- st.end();
- });
-
- t.test('returns properly', function (st) {
- var args;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- return this;
- }, null)
- };
- var context = namespace.func(1, 2, 3);
- st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
- st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
- st.end();
- });
-
- t.test('returns properly with bound arguments', function (st) {
- var args;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- return this;
- }, null, 1, 2, 3)
- };
- var context = namespace.func(4, 5, 6);
- st.equal(context, getCurrentContext.call(), 'returned context is namespaced context');
- st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
- st.end();
- });
-
- t.test('called as a constructor', function (st) {
- var thunkify = function (value) {
- return function () { return value; };
- };
- st.test('returns object value', function (sst) {
- var expectedReturnValue = [1, 2, 3];
- var Constructor = functionBind.call(thunkify(expectedReturnValue), null);
- var result = new Constructor();
- sst.equal(result, expectedReturnValue);
- sst.end();
- });
-
- st.test('does not return primitive value', function (sst) {
- var Constructor = functionBind.call(thunkify(42), null);
- var result = new Constructor();
- sst.notEqual(result, 42);
- sst.end();
- });
-
- st.test('object from bound constructor is instance of original and bound constructor', function (sst) {
- var A = function (x) {
- this.name = x || 'A';
- };
- var B = functionBind.call(A, null, 'B');
-
- var result = new B();
- sst.ok(result instanceof B, 'result is instance of bound constructor');
- sst.ok(result instanceof A, 'result is instance of original constructor');
- sst.end();
- });
-
- st.end();
- });
-
- t.end();
-});
-
-test('with a context', function (t) {
- t.test('with no bound arguments', function (st) {
- var args, context;
- var boundContext = {};
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- context = this;
- }, boundContext)
- };
- namespace.func(1, 2, 3);
- st.equal(context, boundContext, 'binds a context properly');
- st.deepEqual(args, [1, 2, 3], 'supplies passed arguments');
- st.end();
- });
-
- t.test('with bound arguments', function (st) {
- var args, context;
- var boundContext = {};
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- context = this;
- }, boundContext, 1, 2, 3)
- };
- namespace.func(4, 5, 6);
- st.equal(context, boundContext, 'binds a context properly');
- st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'supplies bound and passed arguments');
- st.end();
- });
-
- t.test('returns properly', function (st) {
- var boundContext = {};
- var args;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- return this;
- }, boundContext)
- };
- var context = namespace.func(1, 2, 3);
- st.equal(context, boundContext, 'returned context is bound context');
- st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
- st.deepEqual(args, [1, 2, 3], 'passed arguments are correct');
- st.end();
- });
-
- t.test('returns properly with bound arguments', function (st) {
- var boundContext = {};
- var args;
- var namespace = {
- func: functionBind.call(function () {
- args = Array.prototype.slice.call(arguments);
- return this;
- }, boundContext, 1, 2, 3)
- };
- var context = namespace.func(4, 5, 6);
- st.equal(context, boundContext, 'returned context is bound context');
- st.notEqual(context, getCurrentContext.call(), 'returned context is not lexical context');
- st.deepEqual(args, [1, 2, 3, 4, 5, 6], 'passed arguments are correct');
- st.end();
- });
-
- t.test('passes the correct arguments when called as a constructor', function (st) {
- var expected = { name: 'Correct' };
- var namespace = {
- Func: functionBind.call(function (arg) {
- return arg;
- }, { name: 'Incorrect' })
- };
- var returned = new namespace.Func(expected);
- st.equal(returned, expected, 'returns the right arg when called as a constructor');
- st.end();
- });
-
- t.test('has the new instance\'s context when called as a constructor', function (st) {
- var actualContext;
- var expectedContext = { foo: 'bar' };
- var namespace = {
- Func: functionBind.call(function () {
- actualContext = this;
- }, expectedContext)
- };
- var result = new namespace.Func();
- st.equal(result instanceof namespace.Func, true);
- st.notEqual(actualContext, expectedContext);
- st.end();
- });
-
- t.end();
-});
-
-test('bound function length', function (t) {
- t.test('sets a correct length without thisArg', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; });
- st.equal(subject.length, 3);
- st.equal(subject(1, 2, 3), 6);
- st.end();
- });
-
- t.test('sets a correct length with thisArg', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {});
- st.equal(subject.length, 3);
- st.equal(subject(1, 2, 3), 6);
- st.end();
- });
-
- t.test('sets a correct length without thisArg and first argument', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1);
- st.equal(subject.length, 2);
- st.equal(subject(2, 3), 6);
- st.end();
- });
-
- t.test('sets a correct length with thisArg and first argument', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1);
- st.equal(subject.length, 2);
- st.equal(subject(2, 3), 6);
- st.end();
- });
-
- t.test('sets a correct length without thisArg and too many arguments', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; }, undefined, 1, 2, 3, 4);
- st.equal(subject.length, 0);
- st.equal(subject(), 6);
- st.end();
- });
-
- t.test('sets a correct length with thisArg and too many arguments', function (st) {
- var subject = functionBind.call(function (a, b, c) { return a + b + c; }, {}, 1, 2, 3, 4);
- st.equal(subject.length, 0);
- st.equal(subject(), 6);
- st.end();
- });
-});
projects / dotfiles / .git / blobdiff