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Diffstat (limited to 'deps/npm/node_modules/es-to-primitive/test/es5.js')
| -rw-r--r-- | deps/npm/node_modules/es-to-primitive/test/es5.js | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/deps/npm/node_modules/es-to-primitive/test/es5.js b/deps/npm/node_modules/es-to-primitive/test/es5.js new file mode 100644 index 0000000000..8b80ff5bd9 --- /dev/null +++ b/deps/npm/node_modules/es-to-primitive/test/es5.js @@ -0,0 +1,94 @@ +'use strict'; + +var test = require('tape'); +var toPrimitive = require('../es5'); +var is = require('object-is'); +var forEach = require('foreach'); +var functionName = require('function.prototype.name'); +var debug = require('object-inspect'); + +test('function properties', function (t) { + t.equal(toPrimitive.length, 1, 'length is 1'); + t.equal(functionName(toPrimitive), 'ToPrimitive', 'name is ToPrimitive'); + + t.end(); +}); + +var primitives = [null, undefined, true, false, 0, -0, 42, NaN, Infinity, -Infinity, '', 'abc']; + +test('primitives', function (t) { + forEach(primitives, function (i) { + t.ok(is(toPrimitive(i), i), 'toPrimitive(' + debug(i) + ') returns the same value'); + t.ok(is(toPrimitive(i, String), i), 'toPrimitive(' + debug(i) + ', String) returns the same value'); + t.ok(is(toPrimitive(i, Number), i), 'toPrimitive(' + debug(i) + ', Number) returns the same value'); + }); + t.end(); +}); + +test('Arrays', function (t) { + var arrays = [[], ['a', 'b'], [1, 2]]; + forEach(arrays, function (arr) { + t.ok(is(toPrimitive(arr), arr.toString()), 'toPrimitive(' + debug(arr) + ') returns toString of the array'); + t.equal(toPrimitive(arr, String), arr.toString(), 'toPrimitive(' + debug(arr) + ') returns toString of the array'); + t.ok(is(toPrimitive(arr, Number), arr.toString()), 'toPrimitive(' + debug(arr) + ') returns toString of the array'); + }); + t.end(); +}); + +test('Dates', function (t) { + var dates = [new Date(), new Date(0), new Date(NaN)]; + forEach(dates, function (date) { + t.equal(toPrimitive(date), date.toString(), 'toPrimitive(' + debug(date) + ') returns toString of the date'); + t.equal(toPrimitive(date, String), date.toString(), 'toPrimitive(' + debug(date) + ') returns toString of the date'); + t.ok(is(toPrimitive(date, Number), date.valueOf()), 'toPrimitive(' + debug(date) + ') returns valueOf of the date'); + }); + t.end(); +}); + +var coercibleObject = { valueOf: function () { return 3; }, toString: function () { return 42; } }; +var valueOfOnlyObject = { valueOf: function () { return 4; }, toString: function () { return {}; } }; +var toStringOnlyObject = { valueOf: function () { return {}; }, toString: function () { return 7; } }; +var coercibleFnObject = { + valueOf: function () { return function valueOfFn() {}; }, + toString: function () { return 42; } +}; +var uncoercibleObject = { valueOf: function () { return {}; }, toString: function () { return {}; } }; +var uncoercibleFnObject = { + valueOf: function () { return function valueOfFn() {}; }, + toString: function () { return function toStrFn() {}; } +}; + +test('Objects', function (t) { + t.equal(toPrimitive(coercibleObject), coercibleObject.valueOf(), 'coercibleObject with no hint coerces to valueOf'); + t.equal(toPrimitive(coercibleObject, String), coercibleObject.toString(), 'coercibleObject with hint String coerces to toString'); + t.equal(toPrimitive(coercibleObject, Number), coercibleObject.valueOf(), 'coercibleObject with hint Number coerces to valueOf'); + + t.equal(toPrimitive(coercibleFnObject), coercibleFnObject.toString(), 'coercibleFnObject coerces to toString'); + t.equal(toPrimitive(coercibleFnObject, String), coercibleFnObject.toString(), 'coercibleFnObject with hint String coerces to toString'); + t.equal(toPrimitive(coercibleFnObject, Number), coercibleFnObject.toString(), 'coercibleFnObject with hint Number coerces to toString'); + + t.ok(is(toPrimitive({}), '[object Object]'), '{} with no hint coerces to Object#toString'); + t.equal(toPrimitive({}, String), '[object Object]', '{} with hint String coerces to Object#toString'); + t.ok(is(toPrimitive({}, Number), '[object Object]'), '{} with hint Number coerces to Object#toString'); + + t.equal(toPrimitive(toStringOnlyObject), toStringOnlyObject.toString(), 'toStringOnlyObject returns toString'); + t.equal(toPrimitive(toStringOnlyObject, String), toStringOnlyObject.toString(), 'toStringOnlyObject with hint String returns toString'); + t.equal(toPrimitive(toStringOnlyObject, Number), toStringOnlyObject.toString(), 'toStringOnlyObject with hint Number returns toString'); + + t.equal(toPrimitive(valueOfOnlyObject), valueOfOnlyObject.valueOf(), 'valueOfOnlyObject returns valueOf'); + t.equal(toPrimitive(valueOfOnlyObject, String), valueOfOnlyObject.valueOf(), 'valueOfOnlyObject with hint String returns valueOf'); + t.equal(toPrimitive(valueOfOnlyObject, Number), valueOfOnlyObject.valueOf(), 'valueOfOnlyObject with hint Number returns valueOf'); + + t.test('exceptions', function (st) { + st['throws'](toPrimitive.bind(null, uncoercibleObject), TypeError, 'uncoercibleObject throws a TypeError'); + st['throws'](toPrimitive.bind(null, uncoercibleObject, String), TypeError, 'uncoercibleObject with hint String throws a TypeError'); + st['throws'](toPrimitive.bind(null, uncoercibleObject, Number), TypeError, 'uncoercibleObject with hint Number throws a TypeError'); + + st['throws'](toPrimitive.bind(null, uncoercibleFnObject), TypeError, 'uncoercibleFnObject throws a TypeError'); + st['throws'](toPrimitive.bind(null, uncoercibleFnObject, String), TypeError, 'uncoercibleFnObject with hint String throws a TypeError'); + st['throws'](toPrimitive.bind(null, uncoercibleFnObject, Number), TypeError, 'uncoercibleFnObject with hint Number throws a TypeError'); + st.end(); + }); + + t.end(); +}); |