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utils.js
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utils.js
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"use strict";
var axios = require("axios");
var isEqual = require("fast-deep-equal");
var isBuffer = require("is-buffer");
var isBlob = require("is-blob");
var toString = Object.prototype.toString;
// < 0.13.0 will not have default headers set on a custom instance
var rejectWithError = !!axios.create().defaults.headers;
function find(array, predicate) {
var length = array.length;
for (var i = 0; i < length; i++) {
var value = array[i];
if (predicate(value)) return value;
}
}
function isFunction(val) {
return toString.call(val) === "[object Function]";
}
function isObjectOrArray(val) {
return val !== null && typeof val === "object";
}
function isStream(val) {
return isObjectOrArray(val) && isFunction(val.pipe);
}
function isArrayBuffer(val) {
return toString.call(val) === "[object ArrayBuffer]";
}
function combineUrls(baseURL, url) {
if (baseURL) {
return baseURL.replace(/\/+$/, "") + "/" + url.replace(/^\/+/, "");
}
return url;
}
function findHandler(
handlers,
method,
url,
body,
parameters,
headers,
baseURL
) {
return find(handlers[method.toLowerCase()], function (handler) {
if (typeof handler[0] === "string") {
return (
(isUrlMatching(url, handler[0]) ||
isUrlMatching(combineUrls(baseURL, url), handler[0])) &&
isBodyOrParametersMatching(method, body, parameters, handler[1]) &&
isObjectMatching(headers, handler[2])
);
} else if (handler[0] instanceof RegExp) {
return (
(handler[0].test(url) || handler[0].test(combineUrls(baseURL, url))) &&
isBodyOrParametersMatching(method, body, parameters, handler[1]) &&
isObjectMatching(headers, handler[2])
);
}
});
}
function isUrlMatching(url, required) {
var noSlashUrl = url[0] === "/" ? url.substr(1) : url;
var noSlashRequired = required[0] === "/" ? required.substr(1) : required;
return noSlashUrl === noSlashRequired;
}
function isBodyOrParametersMatching(method, body, parameters, required) {
var allowedParamsMethods = ["delete", "get", "head", "options"];
if (allowedParamsMethods.indexOf(method.toLowerCase()) >= 0) {
var data = required ? required.data : undefined;
var params = required ? required.params : undefined;
return isObjectMatching(parameters, params) && isBodyMatching(body, data);
} else {
return isBodyMatching(body, required);
}
}
function isObjectMatching(actual, expected) {
if (expected === undefined) return true;
if (typeof expected.asymmetricMatch === "function") {
return expected.asymmetricMatch(actual);
}
return isEqual(actual, expected);
}
function isBodyMatching(body, requiredBody) {
if (requiredBody === undefined) {
return true;
}
var parsedBody;
try {
parsedBody = JSON.parse(body);
} catch (e) {}
return isObjectMatching(parsedBody ? parsedBody : body, requiredBody);
}
function purgeIfReplyOnce(mock, handler) {
Object.keys(mock.handlers).forEach(function (key) {
var index = mock.handlers[key].indexOf(handler);
if (index > -1) {
mock.handlers[key].splice(index, 1);
}
});
}
function settle(resolve, reject, response, delay) {
if (delay > 0) {
setTimeout(settle, delay, resolve, reject, response);
return;
}
// Support for axios < 0.13
if (
!rejectWithError &&
(!response.config || !response.config.validateStatus)
) {
if (response.status >= 200 && response.status < 300) {
resolve(response);
} else {
reject(response);
}
return;
}
if (
!response.config.validateStatus ||
response.config.validateStatus(response.status)
) {
resolve(response);
} else {
if (!rejectWithError) {
return reject(response);
}
reject(
createAxiosError(
"Request failed with status code " + response.status,
response.config,
response
)
);
}
}
function createAxiosError(message, config, response, code) {
var error = new Error(message);
error.isAxiosError = true;
error.config = config;
if (response !== undefined) {
error.response = response;
}
if (code !== undefined) {
error.code = code;
}
error.toJSON = function toJSON() {
return {
// Standard
message: this.message,
name: this.name,
// Microsoft
description: this.description,
number: this.number,
// Mozilla
fileName: this.fileName,
lineNumber: this.lineNumber,
columnNumber: this.columnNumber,
stack: this.stack,
// Axios
config: this.config,
code: this.code,
};
};
return error;
}
function createCouldNotFindMockError(config) {
var message =
"Could not find mock for: \n" +
JSON.stringify(config, ["method", "url"], 2);
var error = new Error(message);
error.isCouldNotFindMockError = true;
error.url = config.url;
error.method = config.method;
return error;
}
module.exports = {
find: find,
findHandler: findHandler,
purgeIfReplyOnce: purgeIfReplyOnce,
settle: settle,
isStream: isStream,
isArrayBuffer: isArrayBuffer,
isFunction: isFunction,
isObjectOrArray: isObjectOrArray,
isBuffer: isBuffer,
isBlob: isBlob,
isBodyOrParametersMatching: isBodyOrParametersMatching,
isEqual: isEqual,
createAxiosError: createAxiosError,
createCouldNotFindMockError: createCouldNotFindMockError,
};