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/* 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/. */
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
AppInfo: "chrome://remote/content/shared/AppInfo.sys.mjs",
error: "chrome://remote/content/shared/webdriver/Errors.sys.mjs",
pprint: "chrome://remote/content/shared/Format.sys.mjs",
});
/**
* Shorthands for common assertions made in WebDriver.
*
* @namespace
*/
export const assert = {};
/**
* Asserts that WebDriver has an active session.
*
* @param {WebDriverSession} session
* WebDriver session instance.
* @param {string=} msg
* Custom error message.
*
* @throws {InvalidSessionIDError}
* If session does not exist, or has an invalid id.
*/
assert.session = function (session, msg = "") {
msg = msg || "WebDriver session does not exist, or is not active";
assert.that(
session => session && typeof session.id == "string",
msg,
lazy.error.InvalidSessionIDError
)(session);
};
/**
* Asserts that the current browser is Firefox Desktop.
*
* @param {string=} msg
* Custom error message.
*
* @throws {UnsupportedOperationError}
* If current browser is not Firefox.
*/
assert.firefox = function (msg = "") {
msg = msg || "Only supported in Firefox";
assert.that(
isFirefox => isFirefox,
msg,
lazy.error.UnsupportedOperationError
)(lazy.AppInfo.isFirefox);
};
/**
* Asserts that the current application is Firefox Desktop or Thunderbird.
*
* @param {string=} msg
* Custom error message.
*
* @throws {UnsupportedOperationError}
* If current application is not running on desktop.
*/
assert.desktop = function (msg = "") {
msg = msg || "Only supported in desktop applications";
assert.that(
isDesktop => isDesktop,
msg,
lazy.error.UnsupportedOperationError
)(!lazy.AppInfo.isAndroid);
};
/**
* Asserts that the current application runs on Android.
*
* @param {string=} msg
* Custom error message.
*
* @throws {UnsupportedOperationError}
* If current application is not running on Android.
*/
assert.mobile = function (msg = "") {
msg = msg || "Only supported on Android";
assert.that(
isAndroid => isAndroid,
msg,
lazy.error.UnsupportedOperationError
)(lazy.AppInfo.isAndroid);
};
/**
* Asserts that the current <var>context</var> is content.
*
* @param {string} context
* Context to test.
* @param {string=} msg
* Custom error message.
*
* @returns {string}
* <var>context</var> is returned unaltered.
*
* @throws {UnsupportedOperationError}
* If <var>context</var> is not content.
*/
assert.content = function (context, msg = "") {
msg = msg || "Only supported in content context";
assert.that(
c => c.toString() == "content",
msg,
lazy.error.UnsupportedOperationError
)(context);
};
/**
* Asserts that the {@link CanonicalBrowsingContext} is open.
*
* @param {CanonicalBrowsingContext} browsingContext
* Canonical browsing context to check.
* @param {string=} msg
* Custom error message.
*
* @returns {CanonicalBrowsingContext}
* <var>browsingContext</var> is returned unaltered.
*
* @throws {NoSuchWindowError}
* If <var>browsingContext</var> is no longer open.
*/
assert.open = function (browsingContext, msg = "") {
msg = msg || "Browsing context has been discarded";
return assert.that(
browsingContext => {
if (!browsingContext?.currentWindowGlobal) {
return false;
}
if (browsingContext.isContent && !browsingContext.top.embedderElement) {
return false;
}
return true;
},
msg,
lazy.error.NoSuchWindowError
)(browsingContext);
};
/**
* Asserts that the browsing context is top-level.
*
* @param {BrowsingContext} browsingContext
* Browsing context to check.
* @param {string=} msg
* Custom error message.
*
* @returns {BrowsingContext}
* <var>browsingContext</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>browsingContext</var> is not top-level.
*/
assert.topLevel = function (browsingContext, msg = "") {
msg = msg || `Browsing context is not top-level`;
return assert.that(
() => !browsingContext.parent,
msg,
lazy.error.InvalidArgumentError
)(browsingContext);
};
/**
* Asserts that there is no current user prompt.
*
* @param {modal.Dialog} dialog
* Reference to current dialogue.
* @param {string=} msg
* Custom error message.
*
* @throws {UnexpectedAlertOpenError}
* If there is a user prompt.
*/
assert.noUserPrompt = function (dialog, msg = "") {
assert.that(
d => d === null || typeof d == "undefined",
msg,
lazy.error.UnexpectedAlertOpenError
)(dialog);
};
/**
* Asserts that <var>obj</var> is defined.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {?}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not defined.
*/
assert.defined = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be defined`;
return assert.that(o => typeof o != "undefined", msg)(obj);
};
/**
* Asserts that <var>obj</var> is a finite number.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a number.
*/
assert.number = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be finite number`;
return assert.that(Number.isFinite, msg)(obj);
};
/**
* Asserts that <var>obj</var> is a positive number.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a positive integer.
*/
assert.positiveNumber = function (obj, msg = "") {
assert.number(obj, msg);
msg = msg || lazy.pprint`Expected ${obj} to be >= 0`;
return assert.that(n => n >= 0, msg)(obj);
};
/**
* Asserts that <var>obj</var> is a number in the inclusive range <var>lower</var> to <var>upper</var>.
*
* @param {?} obj
* Value to test.
* @param {Array<number>} range
* Array range [lower, upper]
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a number in the specified range.
*/
assert.numberInRange = function (obj, range, msg = "") {
const [lower, upper] = range;
assert.number(obj, msg);
msg = msg || lazy.pprint`Expected ${obj} to be >= ${lower} and <= ${upper}`;
return assert.that(n => n >= lower && n <= upper, msg)(obj);
};
/**
* Asserts that <var>obj</var> is callable.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {Function}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not callable.
*/
assert.callable = function (obj, msg = "") {
msg = msg || lazy.pprint`${obj} is not callable`;
return assert.that(o => typeof o == "function", msg)(obj);
};
/**
* Asserts that <var>obj</var> is an unsigned short number.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not an unsigned short.
*/
assert.unsignedShort = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be >= 0 and < 65536`;
return assert.that(n => n >= 0 && n < 65536, msg)(obj);
};
/**
* Asserts that <var>obj</var> is an integer.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not an integer.
*/
assert.integer = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be an integer`;
return assert.that(Number.isSafeInteger, msg)(obj);
};
/**
* Asserts that <var>obj</var> is a positive integer.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a positive integer.
*/
assert.positiveInteger = function (obj, msg = "") {
assert.integer(obj, msg);
msg = msg || lazy.pprint`Expected ${obj} to be >= 0`;
return assert.that(n => n >= 0, msg)(obj);
};
/**
* Asserts that <var>obj</var> is an integer in the inclusive range <var>lower</var> to <var>upper</var>.
*
* @param {?} obj
* Value to test.
* @param {Array<number>} range
* Array range [lower, upper]
* @param {string=} msg
* Custom error message.
*
* @returns {number}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a number in the specified range.
*/
assert.integerInRange = function (obj, range, msg = "") {
const [lower, upper] = range;
assert.integer(obj, msg);
msg = msg || lazy.pprint`Expected ${obj} to be >= ${lower} and <= ${upper}`;
return assert.that(n => n >= lower && n <= upper, msg)(obj);
};
/**
* Asserts that <var>obj</var> is a boolean.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {boolean}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a boolean.
*/
assert.boolean = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be boolean`;
return assert.that(b => typeof b == "boolean", msg)(obj);
};
/**
* Asserts that <var>obj</var> is a string.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {string}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not a string.
*/
assert.string = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be a string`;
return assert.that(s => typeof s == "string", msg)(obj);
};
/**
* Asserts that <var>obj</var> is an object.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {object}
* obj| is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not an object.
*/
assert.object = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be an object`;
return assert.that(o => {
// unable to use instanceof because LHS and RHS may come from
// different globals
let s = Object.prototype.toString.call(o);
return s == "[object Object]" || s == "[object nsJSIID]";
}, msg)(obj);
};
/**
* Asserts that <var>obj</var> is an instance of a specified class.
* <var>constructor</var> should have a static isInstance method implemented.
*
* @param {?} obj
* Value to test.
* @param {?} constructor
* Class constructor.
* @param {string=} msg
* Custom error message.
*
* @returns {object}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not an instance of a specified class.
*/
assert.isInstance = function (obj, constructor, msg = "") {
assert.object(obj, msg);
assert.object(constructor.prototype, msg);
msg =
msg ||
lazy.pprint`Expected ${obj} to be an instance of ${constructor.name}`;
return assert.that(
o => Object.hasOwn(constructor, "isInstance") && constructor.isInstance(o),
msg
)(obj);
};
/**
* Asserts that <var>prop</var> is in <var>obj</var>.
*
* @param {?} prop
* An array element or own property to test if is in <var>obj</var>.
* @param {?} obj
* An array or an Object that is being tested.
* @param {string=} msg
* Custom error message.
*
* @returns {?}
* The array element, or the value of <var>obj</var>'s own property
* <var>prop</var>.
*
* @throws {InvalidArgumentError}
* If the <var>obj</var> was an array and did not contain <var>prop</var>.
* Otherwise if <var>prop</var> is not in <var>obj</var>, or <var>obj</var>
* is not an object.
*/
assert.in = function (prop, obj, msg = "") {
if (Array.isArray(obj)) {
assert.that(p => obj.includes(p), msg)(prop);
return prop;
}
assert.object(obj, msg);
msg = msg || lazy.pprint`Expected ${prop} in ${obj}`;
assert.that(p => obj.hasOwnProperty(p), msg)(prop);
return obj[prop];
};
/**
* Asserts that <var>obj</var> is an Array.
*
* @param {?} obj
* Value to test.
* @param {string=} msg
* Custom error message.
*
* @returns {object}
* <var>obj</var> is returned unaltered.
*
* @throws {InvalidArgumentError}
* If <var>obj</var> is not an Array.
*/
assert.array = function (obj, msg = "") {
msg = msg || lazy.pprint`Expected ${obj} to be an Array`;
return assert.that(Array.isArray, msg)(obj);
};
/**
* Returns a function that is used to assert the |predicate|.
*
* @param {function(?): boolean} predicate
* Evaluated on calling the return value of this function. If its
* return value of the inner function is false, <var>error</var>
* is thrown with <var>message</var>.
* @param {string=} message
* Custom error message.
* @param {Error=} err
* Custom error type by its class.
*
* @returns {function(?): ?}
* Function that takes and returns the passed in value unaltered,
* and which may throw <var>error</var> with <var>message</var>
* if <var>predicate</var> evaluates to false.
*/
assert.that = function (
predicate,
message = "",
err = lazy.error.InvalidArgumentError
) {
return obj => {
if (!predicate(obj)) {
throw new err(message);
}
return obj;
};
};
