mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-10-30 06:36:17 +00:00
591 lines
18 KiB
JavaScript
591 lines
18 KiB
JavaScript
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/*
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* jqMock - The JavaScript Mock framework for jQuery / jqUnit
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* http://code.google.com/p/jqmock/
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* version 1.1
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*
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* Copyright 2008 Kenneth Ko, under the GNU Lesser General Public License
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*
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* By Kenneth Ko
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* http://longgoldenears.blogspot.com/
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*
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* ==================================================================
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* Release Notes:
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* --------------
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* version 1.1
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* - [3] change behaviour of verify() to NOT check unexpected invocations
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* (note: it does check unexpected invocations of calls which were setup as expectations)
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* - [3] added verifyAll() method which will check unexpected invocations
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* - [4] added new assertion method to check for exceptions being thrown, expectThatExceptionThrown()
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* - [4] added new expression to help assert the exception, is.exception({name: ... , message: ..., type: ...})
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* - refactoring, ArgExpectation has been internally renamed to Expression
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*
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* version 1.01
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* - [1] [2] bug fixes: circular references
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*
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* version 1.0
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* - initial release
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*
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*/
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var jqMock = jqMock || {};
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(function ($) {
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//======== Utils =============
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function _isObjExpected(actual, expected, oneway, rchain) {
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oneway = oneway || false;
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rchain = rchain || [] ; // holds elements already compared in the recursion, to prevent circular references
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if (actual === expected) {
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return true;
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} else if (expected instanceof Expression) {
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return expected.assert(actual);
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} else if (actual===null || expected===null) {
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return false;
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} else if (actual instanceof Array && expected instanceof Array) {
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// array compare
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if (actual.length != expected.length)
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return false;
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for(var i=0; i<actual.length; i++) {
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var result = _recurseIsObjExpected(actual[i], expected[i], oneway, rchain, expected[i]);
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if (!result) return false;
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//if (!_isObjExpected(actual[i],expected[i]))
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// return false;
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}
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return true;
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} else if (typeof actual == "object" && typeof expected == "object") {
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// object compare, both ways
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for(var i in expected) {
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var result = _recurseIsObjExpected(actual[i], expected[i], oneway, rchain, expected[i]);
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if (!result) return false;
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// if ( !_isObjExpected(actual[i], expected[i]))
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// return false;
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}
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if (!oneway) {
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for(var i in actual) {
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if ( !_isObjExpected(actual[i], expected[i]))
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return false;
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}
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}
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return true;
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} else {
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return false;
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}
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};
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function _recurseIsObjExpected(actual, expected, oneway, rchain, loopvar) {
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if (typeof loopvar == "object") {
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for(var i=0; i<rchain.length; i++) {
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if (loopvar===rchain[i])
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throw new Error("Circular Reference detected in the object!");
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}
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var chainCount = rchain.length;
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rchain.push(loopvar);
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var result = _isObjExpected(actual, expected, oneway, rchain);
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rchain.splice(chainCount);
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return result;
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} else {
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return _isObjExpected(actual, expected, oneway, rchain);
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}
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}
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function assertThat(actual, expected, msg) {
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var result = actual===expected || _isObjExpected(actual, expected);
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msg = (msg ? msg + ": " : "");
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msg += (result ? "actual matched expectation" : "object did not match expectation, actual: " + tostring(actual) + ", expected: " + tostring(expected));
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ok(result, msg);
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};
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var MAX_DEPTH = 100;
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function tostring(obj, rchain) {
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rchain = rchain || [];
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if (rchain.length > MAX_DEPTH)
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return ".....";
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if (typeof obj=="object") {
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for(var a=0; a<rchain.length; a++) {
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if (obj==rchain[a]) {
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return "...";
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}
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}
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}
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rchain.push(obj);
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var rchainCount = rchain.length;
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var result = [];
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if (obj === null) {
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return "null";
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} else if (obj === undefined) {
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return "undefined";
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} else if (obj instanceof Array) {
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result.push("[");
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for(var j=0; j<obj.length; j++) {
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result.push(tostring(obj[j], rchain));
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result.push(",");
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}
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if (obj.length>0)
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result[result.length-1] = "]";
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else
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result.push("]");
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} else if (obj instanceof Expression) {
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return obj.tostring();
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} else if (obj instanceof Error) {
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// for errors, only print name and message (don't want stack)
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var err = {};
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if ("name" in obj) err.name = obj.name;
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if ("message" in obj) err.message = obj.message;
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return tostring(err, rchain);
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} else if ($.isFunction(obj)) {
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//} else if (typeof obj == "function") {
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return "function()";
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} else if (typeof obj == "object") {
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result.push("{");
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for(var i in obj) {
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if (/^__/.test(i)) continue;
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result.push(i);
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result.push(":");
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result.push(tostring(obj[i], rchain));
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result.push(",");
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}
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result[result.length==1 ? result.length : result.length-1] = "}";
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} else {
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result.push(typeof obj == "string" ? "'" : "");
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result.push(obj);
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result.push(typeof obj == "string" ? "'" : "");
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}
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rchain.splice(rchainCount);
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return result.join("");
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};
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function _getClassName(clz) {
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return $.trim(clz.toString()).match(/^function\s(.*)\(/)[1];
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}
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function expectThatExceptionThrown(fn, expression) {
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try {
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fn();
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ok(false, "The expected exception was never thrown. Expression was: " + tostring(expression));
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} catch(ex) {
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assertThat(ex, expression, "expected exception matching " + tostring(expression) + " to be thrown");
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}
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};
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//======== Modifier =============
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function Modifier(fnName, _origFn) {
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this._fnName = fnName;
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this._origFn = _origFn;
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this._args = []; // default no arg
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this._multiplicity = MultiplicityFactory.exactly(1); // default of 1
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this._returnValue = undefined;
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this._returnValueSpecified = false;
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this._exception = null;
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this._matchCount = 0;
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}
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Modifier.prototype.args = function() {
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var expectedArgs = Array.prototype.slice.call(arguments);
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this._args = expectedArgs;
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return this;
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};
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Modifier.prototype.multiplicity = function(m) {
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if (m instanceof Multiplicity)
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this._multiplicity = m;
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else if (typeof m == "number")
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this._multiplicity = MultiplicityFactory.exactly(m);
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else
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throw new Error("Invalid argument for multiplicity()");
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return this;
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};
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Modifier.prototype.returnValue = function(rv) {
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this._returnValueSpecified = true;
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if (typeof rv != "undefined")
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this._returnValue = rv;
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};
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Modifier.prototype.throwException = function(ex) {
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this._exception = ex;
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};
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var MATCHRESULT_does_not_match = -1;
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var MATCHRESULT_matched_but_disabled = 0;
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var MATCHRESULT_matched = 1;
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Modifier.prototype.matches = function(actualArgs) {
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var b = true;
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var expectedArgs = this._args;
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if (expectedArgs.length==0) {
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// handle no argument
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b = (actualArgs.length==0);
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} else if (expectedArgs.length == actualArgs.length) {
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for(var i=0; i<expectedArgs.length; i++) {
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if (!_isObjExpected(actualArgs[i], expectedArgs[i])) {
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b = false;
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break;
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}
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}
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} else {
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b = false;
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}
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if(!b)
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return MATCHRESULT_does_not_match; // does not match args
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else if (this._multiplicity.isDisabled)
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return MATCHRESULT_matched_but_disabled; // matches args, but disabled
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else {
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this._multiplicity.verify(++this._matchCount);
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return MATCHRESULT_matched; // matches args, and still enabled.
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}
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};
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Modifier.prototype.doAction = function(scope, args) {
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if (this._returnValueSpecified) {
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return this._returnValue;
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} else if (this._exception) {
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throw this._exception;
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} else {
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return this._origFn.apply(scope, args);
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}
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};
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Modifier.prototype.satisfied = function() {
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return this._multiplicity.satisfied;
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};
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Modifier.prototype.tostring = function() {
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return [
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(this._multiplicity.satisfied ? " " : "→"),
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this._matchCount, " ",
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this._multiplicity.tostring(), " ",
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this._fnName, "(",
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tostring(this._args).replace(/^\[(.*)\]$/, "$1"),
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")"
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].join("");
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};
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// ======= Multiplicity ===============
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var MultiplicityType = {
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EXACTLY:0,
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ATLEAST:1,
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ATMOST:2,
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RANGE:3
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};
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function Multiplicity(type, lower, upper, initiallySatisfied) {
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this.type = type;
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this.lower = lower;
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this.upper = upper;
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this.satisfied = initiallySatisfied;
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this.isDisabled = false;
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};
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Multiplicity.prototype.verify = function(count) {
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this.satisfied = (count >= this.lower & count <= this.upper);
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this.isDisabled = (count >= this.upper);
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};
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Multiplicity.prototype.tostring = function() {
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if (this.type==MultiplicityType.EXACTLY) {
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return "(" + this.lower + ")";
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} else {
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return [
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"(", this.lower, "..",
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(this.upper==Infinity ? "*" : this.upper),")"
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].join("");
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}
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};
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var MultiplicityFactory = {
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exactly : function(n) {
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if (n==0) {
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// zero is actually atMost(0)
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return new Multiplicity(MultiplicityType.ATMOST, 0, 0, true);
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} else {
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return new Multiplicity(MultiplicityType.EXACTLY, n, n, false);
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}
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},
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times : function(n,m) {
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if (arguments.length == 1) {
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return new Multiplicity(MultiplicityType.EXACTLY, n, n, false);
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} else {
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if (n==0)
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// (0..m) is actually atMost(m)
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return new Multiplicity(MultiplicityType.ATMOST, 0, m, true);
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else
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return new Multiplicity(MultiplicityType.RANGE, n, m, false);
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}
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},
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atLeast : function(n) {
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return new Multiplicity(MultiplicityType.ATLEAST, n, Infinity, false);
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},
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atMost : function(n) {
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return new Multiplicity(MultiplicityType.ATMOST, 0, n, true);
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}
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};
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// ======= Expression ===============
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var ExpressionType = {
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ANYTHING:0,
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NOT:1,
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INSTANCEOF:2,
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SUPERSET:3,
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REGEX:4,
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ANYOF:5,
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ALLOF:6,
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CUSTOM: 7,
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ERROR:8
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};
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function Expression(type, param) {
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this.type = type;
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this.param = param;
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};
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Expression.prototype.assert = function(actual) {
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switch(this.type) {
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case ExpressionType.ANYTHING:
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return true;
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case ExpressionType.NOT:
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return !_isObjExpected(actual, this.param);
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case ExpressionType.INSTANCEOF:
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return actual instanceof this.param;
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case ExpressionType.SUPERSET:
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return _isObjExpected(actual, this.param, true);
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case ExpressionType.REGEX:
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return this.param.test(actual);
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case ExpressionType.ANYOF:
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for(var i=0; i<this.param.length; i++) {
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if (_isObjExpected(actual, this.param[i]))
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return true;
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}
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return false;
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case ExpressionType.ALLOF:
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for(var i=0; i<this.param.length; i++) {
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if (!_isObjExpected(actual, this.param[i]))
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return false;
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}
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return true;
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case ExpressionType.CUSTOM:
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return this.param(actual);
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case ExpressionType.ERROR:
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var exOk = true;
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if ("name" in this.param)
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exOk = exOk && (this.param.name === actual.name);
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if ("message" in this.param)
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exOk = exOk && (this.param.message === actual.message);
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if ("type" in this.param) // type= is.instanceOf(Class)
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exOk = exOk && (_isObjExpected(actual, this.param.type));
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return exOk;
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}
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};
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Expression.prototype.tostring = function() {
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switch(this.type) {
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case ExpressionType.ANYTHING:
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return "is.anything";
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case ExpressionType.NOT:
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return "is.not(" + tostring(this.param) +")";
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case ExpressionType.INSTANCEOF:
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//return "is.instanceOf(" + $.trim(this.param.toString()).match(/^function\s(.*)\(/)[1] +")";
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return "is.instanceOf(" + _getClassName(this.param) +")";
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case ExpressionType.SUPERSET:
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|
|
return "is.objectThatIncludes(" + tostring(this.param) +")";
|
||
|
|
case ExpressionType.REGEX:
|
||
|
|
return "is.regex(" + this.param.toString() +")";
|
||
|
|
case ExpressionType.ANYOF:
|
||
|
|
return "is.anyOf(" + tostring(this.param) +")";
|
||
|
|
case ExpressionType.ALLOF:
|
||
|
|
return "is.allOf(" + tostring(this.param) +")";
|
||
|
|
case ExpressionType.CUSTOM:
|
||
|
|
return "is.custom(function)";
|
||
|
|
case ExpressionType.ERROR:
|
||
|
|
if (_isObjExpected(this.param, {}))
|
||
|
|
return "is.exception()";
|
||
|
|
else
|
||
|
|
return "is.exception(" + tostring(this.param) +")";
|
||
|
|
}
|
||
|
|
};
|
||
|
|
var ExpressionFactory = {
|
||
|
|
anything : new Expression(ExpressionType.ANYTHING),
|
||
|
|
not: function(param) {
|
||
|
|
return new Expression(ExpressionType.NOT, param);
|
||
|
|
},
|
||
|
|
instanceOf: function(param) {
|
||
|
|
if (!$.isFunction(param))
|
||
|
|
throw new Error("Invalid argument to is.instanceOf() , argument must be a Class");
|
||
|
|
return new Expression(ExpressionType.INSTANCEOF, param);
|
||
|
|
},
|
||
|
|
objectThatIncludes: function(param) {
|
||
|
|
return new Expression(ExpressionType.SUPERSET, param);
|
||
|
|
},
|
||
|
|
regex: function(param) {
|
||
|
|
if (!(param instanceof RegExp))
|
||
|
|
throw new Error("Invalid argument to is.regex() , argument must be regex");
|
||
|
|
return new Expression(ExpressionType.REGEX, param);
|
||
|
|
},
|
||
|
|
anyOf: function(param) {
|
||
|
|
if (!(param instanceof Array))
|
||
|
|
throw new Error("Invalid argument to is.anyOf() , argument must be an Array");
|
||
|
|
return new Expression(ExpressionType.ANYOF, param);
|
||
|
|
},
|
||
|
|
allOf: function(param) {
|
||
|
|
if (!(param instanceof Array))
|
||
|
|
throw new Error("Invalid argument to is.allOf() , argument must be an Array");
|
||
|
|
return new Expression(ExpressionType.ALLOF, param);
|
||
|
|
},
|
||
|
|
custom: function(param) {
|
||
|
|
if (!$.isFunction(param))
|
||
|
|
throw new Error("Invalid argument to is.custom() , argument must be a Function that returns a boolean value");
|
||
|
|
return new Expression(ExpressionType.CUSTOM, param);
|
||
|
|
},
|
||
|
|
exception: function(param) {
|
||
|
|
if (typeof param == "string")
|
||
|
|
return new Expression(ExpressionType.ERROR, {message: param});
|
||
|
|
if (typeof param == "undefined")
|
||
|
|
param = {};
|
||
|
|
if (typeof param != "object")
|
||
|
|
throw new Error("Invalid argument to is.exception() , argument must be an object or string");
|
||
|
|
if ("type" in param && !$.isFunction(param["type"]))
|
||
|
|
throw new Error("Invalid argument to is.exception() , the type attribute of the parameter must be a Class");
|
||
|
|
if ("type" in param) // convert type to is.instanceof()
|
||
|
|
param.type = new Expression(ExpressionType.INSTANCEOF, param.type);
|
||
|
|
return new Expression(ExpressionType.ERROR, param);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
// ======= Mock ==============
|
||
|
|
function Mock(obj, fnName) {
|
||
|
|
var _unmatched = [];
|
||
|
|
var _modifiers = [];
|
||
|
|
var _obj = obj;
|
||
|
|
var _fnName = fnName;
|
||
|
|
var _isOrdered = false;
|
||
|
|
var _oep = 0; // ordered expectation pointer
|
||
|
|
var _oef = false; // ordered expectation has failed
|
||
|
|
|
||
|
|
if (obj ==undefined || obj[fnName] == undefined) {
|
||
|
|
throw new Error("Could not create Mock: the object or function you specified is not defined, obj." + fnName);
|
||
|
|
}
|
||
|
|
if (!$.isFunction(obj[fnName])) {
|
||
|
|
throw new Error("Could not create Mock: " + fnName + " is not a function");
|
||
|
|
}
|
||
|
|
var intercept = function() {
|
||
|
|
var matchedModifier;
|
||
|
|
var matchResult;
|
||
|
|
// ordered expectations
|
||
|
|
if (_isOrdered) {
|
||
|
|
if (!_oef) {
|
||
|
|
matchResult = _modifiers[_oep].matches(arguments);
|
||
|
|
if (matchResult == MATCHRESULT_matched) {
|
||
|
|
matchedModifier = _modifiers[_oep];
|
||
|
|
} else {
|
||
|
|
_oep++;
|
||
|
|
if (_modifiers.length > _oep) {
|
||
|
|
matchResult = _modifiers[_oep].matches(arguments);
|
||
|
|
if (matchResult == MATCHRESULT_matched) {
|
||
|
|
matchedModifier = _modifiers[_oep];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (matchedModifier === undefined)
|
||
|
|
_oef = true;
|
||
|
|
} else {
|
||
|
|
// unordered expectations, matches first one
|
||
|
|
for(var i=0; i<_modifiers.length; i++) {
|
||
|
|
matchResult = _modifiers[i].matches(arguments);
|
||
|
|
if (matchResult == MATCHRESULT_matched) {
|
||
|
|
matchedModifier = _modifiers[i];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (matchedModifier)
|
||
|
|
return matchedModifier.doAction(this, arguments);
|
||
|
|
|
||
|
|
// store the unmatched expectation as an error string
|
||
|
|
var actualArgs = Array.prototype.slice.call(arguments);
|
||
|
|
var unmatchedMsg = fnName + "(" + tostring(actualArgs).replace(/^\[(.*)\]$/, "$1") + ")";
|
||
|
|
_unmatched.push( {'matchResult': matchResult, 'msg': unmatchedMsg} );
|
||
|
|
};
|
||
|
|
if (!obj[fnName].isMock) {
|
||
|
|
var _origFn = obj[fnName];
|
||
|
|
obj[fnName] = intercept;
|
||
|
|
obj[fnName].isMock = true;
|
||
|
|
} else {
|
||
|
|
throw new Error("Could not create Mock: you tried to overwrite a function which is already a mock!");
|
||
|
|
}
|
||
|
|
this.reset = function() {
|
||
|
|
_oep = 0;
|
||
|
|
_oef = false;
|
||
|
|
for(var i=0; i<_modifiers.length; i++)
|
||
|
|
delete _modifiers[i];
|
||
|
|
_modifiers = [];
|
||
|
|
for(var i=0; i<_unmatched.length; i++)
|
||
|
|
delete _unmatched[i];
|
||
|
|
_unmatched = [];
|
||
|
|
};
|
||
|
|
this.restore = function() {
|
||
|
|
this.reset();
|
||
|
|
_obj[_fnName] = _origFn;
|
||
|
|
};
|
||
|
|
this.modify = function() {
|
||
|
|
_modifiers.push(new Modifier(_fnName, _origFn));
|
||
|
|
return _modifiers[_modifiers.length-1];
|
||
|
|
};
|
||
|
|
this.setOrdered = function(b) {
|
||
|
|
_isOrdered = b;
|
||
|
|
};
|
||
|
|
// check that all expectations satisfied
|
||
|
|
var _verify = function(verifyUnmatched) {
|
||
|
|
if (_modifiers.length > 0) {
|
||
|
|
var b = true;
|
||
|
|
for(var i=0; i<_modifiers.length; i++) {
|
||
|
|
if (!_modifiers[i].satisfied()){
|
||
|
|
b = false;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// unsatisfied expectations
|
||
|
|
var msg = "";
|
||
|
|
if (!b) {
|
||
|
|
msg += (_isOrdered ? "Ordered" : "Unordered") + " expectations have not yet been satisfied:<br/>";
|
||
|
|
for(var i=0; i<_modifiers.length; i++) {
|
||
|
|
msg += _modifiers[i].tostring() + "<br/>";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (_unmatched.length>0) {
|
||
|
|
// unmatched expectations, when using verifyAll()
|
||
|
|
if (verifyUnmatched) {
|
||
|
|
b = false;
|
||
|
|
msg += "No expectation matched for the following calls:<br/>"
|
||
|
|
for(var i=0; i<_unmatched.length; i++) {
|
||
|
|
msg += _unmatched[i].msg + "<br/>";
|
||
|
|
}
|
||
|
|
// unmatched expectations, when using verify()
|
||
|
|
} else {
|
||
|
|
var msg1 = "";
|
||
|
|
for(var i=0; i<_unmatched.length; i++) {
|
||
|
|
if (_unmatched[i].matchResult == MATCHRESULT_matched_but_disabled)
|
||
|
|
msg1 += _unmatched[i].msg + "<br/>";
|
||
|
|
}
|
||
|
|
if (msg1.length>0) {
|
||
|
|
msg += "No expectation matched for the following calls which were setup as expectations:<br/>" + msg1;
|
||
|
|
b = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (msg=="")
|
||
|
|
msg = _modifiers.length + " expectations were satisfied";
|
||
|
|
|
||
|
|
ok(b, msg);
|
||
|
|
} else {
|
||
|
|
throw new Error("Expectation setup error. You must set up some expectations");
|
||
|
|
}
|
||
|
|
};
|
||
|
|
this.verify = function() {
|
||
|
|
_verify(false);
|
||
|
|
};
|
||
|
|
this.verifyAll = function() {
|
||
|
|
_verify(true);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
//=====changed expect to expects as window.expect exists in qunit==============
|
||
|
|
function addShortcut() {
|
||
|
|
if (window.expects || window.is)
|
||
|
|
throw new Error("Cannot add shortcuts, expect() or is() already exists in global scope!");
|
||
|
|
expects = jqMock.expects;
|
||
|
|
is = jqMock.is;
|
||
|
|
};
|
||
|
|
//===================
|
||
|
|
$.extend(jqMock, {
|
||
|
|
assertThat: assertThat,
|
||
|
|
tostring: tostring,
|
||
|
|
expectThatExceptionThrown: expectThatExceptionThrown,
|
||
|
|
Mock: Mock,
|
||
|
|
// changed expect to expects
|
||
|
|
expects: MultiplicityFactory,
|
||
|
|
is: ExpressionFactory,
|
||
|
|
addShortcut: addShortcut
|
||
|
|
});
|
||
|
|
}) (jQuery);
|