mirror of https://github.com/zulip/zulip.git
128 lines
3.9 KiB
JavaScript
128 lines
3.9 KiB
JavaScript
"use strict";
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const {strict: assert} = require("assert");
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function make_zblueslip() {
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const lib = {};
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const opts = {
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// Silently swallow all debug, log and info calls.
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debug: false,
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log: false,
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info: false,
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// Check against expected error values for the following.
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warn: true,
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error: true,
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};
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const names = Object.keys(opts);
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// For fatal messages, we should use assert.throws
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/* istanbul ignore next */
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lib.fatal = (msg) => {
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throw new Error(msg);
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};
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// Store valid test data for options.
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lib.test_data = {};
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lib.test_logs = {};
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for (const name of names) {
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lib.test_data[name] = [];
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lib.test_logs[name] = [];
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}
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lib.expect = (name, message, expected_count = 1) => {
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assert.notEqual(opts[name], undefined, `unexpected arg for expect: ${name}`);
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assert.ok(
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expected_count > 0 && Number.isInteger(expected_count),
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"expected count should be a positive integer",
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);
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const obj = {message, count: 0, expected_count};
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lib.test_data[name].push(obj);
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};
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const check_seen_messages = () => {
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for (const name of names) {
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for (const obj of lib.test_logs[name]) {
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const message = obj.message;
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const i = lib.test_data[name].findIndex((x) => x.message === message);
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if (i === -1) {
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// Only throw this for message types we want to explicitly track.
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// For example, we do not want to throw here for debug messages.
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if (opts[name]) {
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throw new Error(`Unexpected '${name}' message: ${message}`);
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}
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continue;
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}
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lib.test_data[name][i].count += 1;
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}
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for (const obj of lib.test_data[name]) {
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const message = obj.message;
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assert.equal(
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obj.count,
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obj.expected_count,
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`Expected ${obj.expected_count} of '${name}': ${message}`,
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);
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}
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}
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};
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lib.reset = (skip_checks = false) => {
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if (!skip_checks) {
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check_seen_messages();
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}
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for (const name of names) {
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lib.test_data[name] = [];
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lib.test_logs[name] = [];
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}
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};
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lib.get_test_logs = (name) => lib.test_logs[name];
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// Create logging functions
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for (const name of names) {
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if (!opts[name]) {
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// should just log the message.
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lib[name] = function (message, more_info, stack) {
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lib.test_logs[name].push({message, more_info, stack});
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};
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continue;
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}
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lib[name] = function (message, more_info, stack) {
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/* istanbul ignore if */
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if (typeof message !== "string") {
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// We may catch exceptions in blueslip, and if
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// so our stub should include that.
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if (message.toString().includes("exception")) {
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message = message.toString();
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} else {
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throw new Error("message should be string: " + message);
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}
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}
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lib.test_logs[name].push({message, more_info, stack});
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const matched_error_message = lib.test_data[name].find((x) => x.message === message);
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const exact_match_fail = !matched_error_message;
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if (exact_match_fail) {
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const error = new Error(`Invalid ${name} message: "${message}".`);
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error.blueslip = true;
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throw error;
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}
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};
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}
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lib.exception_msg = function (ex) {
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return ex.message;
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};
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lib.measure_time = (label, f) => f();
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/* istanbul ignore next */
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lib.preview_node = (node) => "node:" + node;
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return lib;
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}
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module.exports = make_zblueslip();
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