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// With custom modifications - all are marked with
// a "Custom modification" comment.
(function(factory) {
// NOTE:
// All techniques except for the "browser globals" fallback will extend the
// provided QUnit object but return the isolated API methods
// For AMD: Register as an anonymous AMD module with a named dependency on "qunit".
if (typeof define === "function" && define.amd) {
define(["qunit"], factory);
}
// For Node.js
else if (typeof module !== "undefined" && module && module.exports && typeof require === "function") {
module.exports = factory(require("qunitjs"));
}
// Custom modification: remove the non-Node.js CommonJS part due to its
// usage of QUnit.extend.
//
// For browser globals
else {
factory(QUnit);
}
}(function(QUnit) {
/**
* Find an appropriate `Assert` context to `push` results to.
* @param * context - An unknown context, possibly `Assert`, `Test`, or neither
* @private
*/
function _getPushContext(context) {
var pushContext;
if (context && typeof context.push === "function") {
// `context` is an `Assert` context
pushContext = context;
}
else if (context && context.assert && typeof context.assert.push === "function") {
// `context` is a `Test` context
pushContext = context.assert;
}
else if (
QUnit && QUnit.config && QUnit.config.current && QUnit.config.current.assert &&
typeof QUnit.config.current.assert.push === "function"
) {
// `context` is an unknown context but we can find the `Assert` context via QUnit
pushContext = QUnit.config.current.assert;
}
else if (QUnit && typeof QUnit.push === "function") {
pushContext = QUnit.push;
}
else {
throw new Error("Could not find the QUnit `Assert` context to push results");
}
return pushContext;
}
/**
* Checks that the first two arguments are equal, or are numbers close enough to be considered equal
* based on a specified maximum allowable difference.
*
* @example assert.close(3.141, Math.PI, 0.001);
*
* @param Number actual
* @param Number expected
* @param Number maxDifference (the maximum inclusive difference allowed between the actual and expected numbers)
* @param String message (optional)
*/
function close(actual, expected, maxDifference, message) {
var actualDiff = (actual === expected) ? 0 : Math.abs(actual - expected),
result = actualDiff <= maxDifference,
pushContext = _getPushContext(this);
message = message || (actual + " should be within " + maxDifference + " (inclusive) of " + expected + (result ? "" : ". Actual: " + actualDiff));
// Custom modification: push -> pushResult
pushContext.pushResult({
result: result,
actual: actual,
expected: expected,
message: message
});
}
/**
* Checks that the first two arguments are equal, or are numbers close enough to be considered equal
* based on a specified maximum allowable difference percentage.
*
* @example assert.close.percent(155, 150, 3.4); // Difference is ~3.33%
*
* @param Number actual
* @param Number expected
* @param Number maxPercentDifference (the maximum inclusive difference percentage allowed between the actual and expected numbers)
* @param String message (optional)
*/
close.percent = function closePercent(actual, expected, maxPercentDifference, message) {
var actualDiff, result,
pushContext = _getPushContext(this);
if (actual === expected) {
actualDiff = 0;
result = actualDiff <= maxPercentDifference;
}
else if (actual !== 0 && expected !== 0 && expected !== Infinity && expected !== -Infinity) {
actualDiff = Math.abs(100 * (actual - expected) / expected);
result = actualDiff <= maxPercentDifference;
}
else {
// Dividing by zero (0)! Should return `false` unless the max percentage was `Infinity`
actualDiff = Infinity;
result = maxPercentDifference === Infinity;
}
message = message || (actual + " should be within " + maxPercentDifference + "% (inclusive) of " + expected + (result ? "" : ". Actual: " + actualDiff + "%"));
// Custom modification: push -> pushResult
pushContext.pushResult({
result: result,
actual: actual,
expected: expected,
message: message
});
};
/**
* Checks that the first two arguments are numbers with differences greater than the specified
* minimum difference.
*
* @example assert.notClose(3.1, Math.PI, 0.001);
*
* @param Number actual
* @param Number expected
* @param Number minDifference (the minimum exclusive difference allowed between the actual and expected numbers)
* @param String message (optional)
*/
function notClose(actual, expected, minDifference, message) {
var actualDiff = Math.abs(actual - expected),
result = actualDiff > minDifference,
pushContext = _getPushContext(this);
message = message || (actual + " should not be within " + minDifference + " (exclusive) of " + expected + (result ? "" : ". Actual: " + actualDiff));
// Custom modification: push -> pushResult
pushContext.pushResult({
result: result,
actual: actual,
expected: expected,
message: message
});
}
/**
* Checks that the first two arguments are numbers with differences greater than the specified
* minimum difference percentage.
*
* @example assert.notClose.percent(156, 150, 3.5); // Difference is 4.0%
*
* @param Number actual
* @param Number expected
* @param Number minPercentDifference (the minimum exclusive difference percentage allowed between the actual and expected numbers)
* @param String message (optional)
*/
notClose.percent = function notClosePercent(actual, expected, minPercentDifference, message) {
var actualDiff, result,
pushContext = _getPushContext(this);
if (actual === expected) {
actualDiff = 0;
result = actualDiff > minPercentDifference;
}
else if (actual !== 0 && expected !== 0 && expected !== Infinity && expected !== -Infinity) {
actualDiff = Math.abs(100 * (actual - expected) / expected);
result = actualDiff > minPercentDifference;
}
else {
// Dividing by zero (0)! Should only return `true` if the min percentage was `Infinity`
actualDiff = Infinity;
result = minPercentDifference !== Infinity;
}
message = message || (actual + " should not be within " + minPercentDifference + "% (exclusive) of " + expected + (result ? "" : ". Actual: " + actualDiff + "%"));
// Custom modification: push -> pushResult
pushContext.pushResult({
result: result,
actual: actual,
expected: expected,
message: message
});
};
var key;
var api = {
close: close,
notClose: notClose,
closePercent: close.percent,
notClosePercent: notClose.percent
};
for (key in api) {
QUnit.assert[key] = api[key];
}
return api;
}));
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