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macros.js
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macros.js
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var assert = require('assert'),
utils = require('assert/utils');
var messages = {
'equal' : "expected {expected},\n\tgot\t {actual} ({operator})",
'notEqual' : "didn't expect {actual} ({operator})"
};
messages['strictEqual'] = messages['deepEqual'] = messages['equal'];
messages['notStrictEqual'] = messages['notDeepEqual'] = messages['notEqual'];
for (var key in messages) {
assert[key] = (function (key, callback) {
return function (actual, expected, message) {
callback(actual, expected, message || messages[key]);
};
})(key, assert[key]);
}
assert.ok = (function (callback) {
return function (actual, message) {
callback(actual, message || "expected expression to evaluate to {expected}, but was {actual}");
};
})(assert.ok);
assert.match = function (actual, expected, message) {
if (! expected.test(actual)) {
assert.fail(actual, expected, message || "expected {actual} to match {expected}", "match", assert.match);
}
};
assert.matches = assert.match;
assert.isTrue = function (actual, message) {
if (actual !== true) {
assert.fail(actual, true, message || "expected {expected}, got {actual}", "===", assert.isTrue);
}
};
assert.isFalse = function (actual, message) {
if (actual !== false) {
assert.fail(actual, false, message || "expected {expected}, got {actual}", "===", assert.isFalse);
}
};
assert.isZero = function (actual, message) {
if (actual !== 0) {
assert.fail(actual, 0, message || "expected {expected}, got {actual}", "===", assert.isZero);
}
};
assert.isNotZero = function (actual, message) {
if (actual === 0) {
assert.fail(actual, 0, message || "expected non-zero value, got {actual}", "===", assert.isNotZero);
}
};
assert.greater = function (actual, expected, message) {
if (actual <= expected) {
assert.fail(actual, expected, message || "expected {actual} to be greater than {expected}", ">", assert.greater);
}
};
assert.lesser = function (actual, expected, message) {
if (actual >= expected) {
assert.fail(actual, expected, message || "expected {actual} to be lesser than {expected}", "<", assert.lesser);
}
};
//
// Inclusion
//
assert.include = function (actual, expected, message) {
if ((function (obj) {
if (isArray(obj) || isString(obj)) {
return obj.indexOf(expected) === -1;
} else if (isObject(actual)) {
return ! obj.hasOwnProperty(expected);
}
return false;
})(actual)) {
assert.fail(actual, expected, message || "expected {actual} to include {expected}", "include", assert.include);
}
};
assert.includes = assert.include;
assert.deepInclude = function (actual, expected, message) {
if (!isArray(actual)) {
return assert.include(actual, expected, message);
}
if (!actual.some(function (item) { return utils.deepEqual(item, expected) })) {
assert.fail(actual, expected, message || "expected {actual} to include {expected}", "include", assert.deepInclude);
}
};
assert.deepIncludes = assert.deepInclude;
//
// Length
//
assert.isEmpty = function (actual, message) {
if ((isObject(actual) && Object.keys(actual).length > 0) || actual.length > 0) {
assert.fail(actual, 0, message || "expected {actual} to be empty", "length", assert.isEmpty);
}
};
assert.length = function (actual, expected, message) {
if (actual.length !== expected) {
assert.fail(actual, expected, message || "expected {actual} to have {expected} element(s)", "length", assert.length);
}
};
//
// Type
//
assert.isArray = function (actual, message) {
assertTypeOf(actual, 'array', message || "expected {actual} to be an Array", assert.isArray);
};
assert.isObject = function (actual, message) {
assertTypeOf(actual, 'object', message || "expected {actual} to be an Object", assert.isObject);
};
assert.isNumber = function (actual, message) {
if (isNaN(actual)) {
assert.fail(actual, 'number', message || "expected {actual} to be of type {expected}", "isNaN", assert.isNumber);
} else {
assertTypeOf(actual, 'number', message || "expected {actual} to be a Number", assert.isNumber);
}
};
assert.isBoolean = function (actual, message) {
if (actual !== true && actual !== false) {
assert.fail(actual, 'NaN', message || "expected {actual} to be a Boolean", "===", assert.isBoolean);
}
};
assert.isNaN = function (actual, message) {
if (actual === actual) {
assert.fail(actual, 'NaN', message || "expected {actual} to be NaN", "===", assert.isNaN);
}
};
assert.isNull = function (actual, message) {
if (actual !== null) {
assert.fail(actual, null, message || "expected {expected}, got {actual}", "===", assert.isNull);
}
};
assert.isNotNull = function (actual, message) {
if (actual === null) {
assert.fail(actual, null, message || "expected non-null value, got {actual}", "===", assert.isNotNull);
}
};
assert.isUndefined = function (actual, message) {
if (actual !== undefined) {
assert.fail(actual, undefined, message || "expected {actual} to be {expected}", "===", assert.isUndefined);
}
};
assert.isString = function (actual, message) {
assertTypeOf(actual, 'string', message || "expected {actual} to be a String", assert.isString);
};
assert.isFunction = function (actual, message) {
assertTypeOf(actual, 'function', message || "expected {actual} to be a Function", assert.isFunction);
};
assert.typeOf = function (actual, expected, message) {
assertTypeOf(actual, expected, message, assert.typeOf);
};
assert.instanceOf = function (actual, expected, message) {
if (! (actual instanceof expected)) {
assert.fail(actual, expected, message || "expected {actual} to be an instance of {expected}", "instanceof", assert.instanceOf);
}
};
//
// Utility functions
//
function assertTypeOf(actual, expected, message, caller) {
if (typeOf(actual) !== expected) {
assert.fail(actual, expected, message || "expected {actual} to be of type {expected}", "typeOf", caller);
}
};
function isArray (obj) {
return Array.isArray(obj);
}
function isString (obj) {
return typeof(obj) === 'string' || obj instanceof String;
}
function isObject (obj) {
return typeof(obj) === 'object' && obj && !isArray(obj);
}
// A better `typeof`
function typeOf(value) {
var s = typeof(value),
types = [Object, Array, String, RegExp, Number, Function, Boolean, Date];
if (s === 'object' || s === 'function') {
if (value) {
types.forEach(function (t) {
if (value instanceof t) { s = t.name.toLowerCase() }
});
} else { s = 'null' }
}
return s;
}