ethers.js/packages/tests/src.ts/reporter-keepalive.ts
2020-08-23 19:39:57 -04:00

132 lines
3.0 KiB
TypeScript

/* istanbul ignore file */
'use strict';
// Maximum time in seconds to suppress output
const MAX_DELAY = 60;
function getTime(): number {
return (new Date()).getTime();
}
interface Suite {
title: string;
file: string;
suites: Array<Suite>;
}
interface Runner {
on(event: string, callback: (...args: Array<any>) => void): Runner;
}
const stdoutWrite = process.stdout.write.bind(process.stdout);
let logOut = "";
let capturing = false;
function log(message?: string): void {
if (message == null) { message = ""; }
if (capturing) {
logOut += message;
} else {
console.log(message);
}
}
function captureLog(initialLog?: string): void {
capturing = true;
if (initialLog == null) { initialLog = ""; }
logOut = initialLog
process.stdout.write = function(...args: Array<any>): boolean {
logOut += "*";
return true;
}
}
function releaseLog(): string {
capturing = false;
const result = logOut;
process.stdout.write = stdoutWrite;
logOut = "";
return result;
}
export function ReporterKeepAlive(runner: Runner) {
let suites = 0;
let fails = 0;
const errors: Array<string> = [ ];
// Catch anything attempting to write to the consolea
captureLog();
// Force Output; Keeps the console output alive with periodic updates
let lastOutput = getTime();
function forceOutput() {
if (((getTime() - lastOutput) / 1000) > MAX_DELAY) {
let currentLog = releaseLog();
console.log(`# Keep Alive: ${ currentLog }`);
captureLog();
lastOutput = getTime();
}
}
const timer = setInterval(forceOutput, 1000);
runner.on('suite', function(suite: Suite) {
suites++;
fails = 0;
log("[");
});
runner.on('suite end', function() {
suites--;
log("]");
if (suites === 0) {
// Reset standard output
const currentLog = releaseLog();
if (logOut.length) {
console.log(`# Keep Alive: ${ currentLog }`);
}
// Stop the keep-alive poller
clearTimeout(timer);
// Dump out any errors encountered
console.log("#")
if (errors.length) {
console.log("# ---------------")
errors.forEach((error, index) => {
if (index > 0) { console.log("#"); }
error.toString().split("\n").forEach((line) => {
console.log(`# ${ line }`);
});
});
}
console.log("# ---------------")
}
});
runner.on('test', function(test) {
});
runner.on('fail', function(test, error) {
fails++;
if (fails < 10) {
errors.push(`Error #${ errors.length } (${ test.title }): ${ error.message }\n${ error.stack }`);
log("!");
}
});
runner.on('pass', function(test) {
});
runner.on('pending', function(test) {
log("?");
});
}