Function match

test/helpers/sinon.js:1093–1155

(expectation, message)

    };

    var match = function (expectation, message) {
        var m = sinon.create(matcher);
        var type = sinon.typeOf(expectation);
        switch (type) {
        case "object":
            if (typeof expectation.test === "function") {
                m.test = function (actual) {
                    return expectation.test(actual) === true;
                };
                m.message = "match(" + sinon.functionName(expectation.test) + ")";
                return m;
            }
            var str = [];
            for (var key in expectation) {
                if (expectation.hasOwnProperty(key)) {
                    str.push(key + ": " + expectation[key]);
                }
            }
            m.test = function (actual) {
                return matchObject(expectation, actual);
            };
            m.message = "match(" + str.join(", ") + ")";
            break;
        case "number":
            m.test = function (actual) {
                return expectation == actual;
            };
            break;
        case "string":
            m.test = function (actual) {
                if (typeof actual !== "string") {
                    return false;
                }
                return actual.indexOf(expectation) !== -1;
            };
            m.message = "match(\"" + expectation + "\")";
            break;
        case "regexp":
            m.test = function (actual) {
                if (typeof actual !== "string") {
                    return false;
                }
                return expectation.test(actual);
            };
            break;
        case "function":
            m.test = expectation;
            if (message) {
                m.message = message;
            } else {
                m.message = "match(" + sinon.functionName(expectation) + ")";
            }
            break;
        default:
            m.test = function (actual) {
              return sinon.deepEqual(expectation, actual);
            };
        }