/
pause-test.js
93 lines (80 loc) · 2.31 KB
/
pause-test.js
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const tap = require("tap");
const fs = require("fs");
const log4js = require("../../lib/log4js");
const removeFiles = async filenames => {
if (!Array.isArray(filenames))
filenames = [filenames];
const promises = filenames.map(filename => fs.promises.unlink(filename));
await Promise.allSettled(promises);
};
tap.test("Drain event test", batch => {
batch.test("Should emit pause event and resume when logging in a file with high frequency", t => {
t.tearDown(async () => {
await removeFiles("logs/drain.log");
});
// Generate logger with 5k of highWaterMark config
log4js.configure({
appenders: {
file: { type: "file", filename: "logs/drain.log", highWaterMark: 5 * 1024 }
},
categories: {
default: { appenders: ["file"], level: "debug" }
}
});
let paused = false;
let resumed = false;
process.on("log4js:pause", value => {
if (value) {
paused = true;
} else {
resumed = true;
}
});
const logger = log4js.getLogger();
while (!paused && !resumed) {
if (!paused) {
logger.info("This is a test for emitting drain event");
}
}
t.end();
});
batch.test("Should emit pause event and resume when logging in a date file with high frequency", (t) => {
t.tearDown(async () => {
await removeFiles("logs/date-file-drain.log");
});
// Generate date file logger with 5kb of highWaterMark config
log4js.configure({
appenders: {
file: { type: "dateFile", filename: "logs/date-file-drain.log", highWaterMark: 5 * 1024 }
},
categories: {
default: { appenders: ["file"], level: "debug" }
}
});
let paused = false;
let resumed = false;
process.on("log4js:pause", value => {
if (value) {
paused = true;
} else {
resumed = true;
}
});
const logger = log4js.getLogger();
while (!paused && !resumed) {
if (!paused)
logger.info("This is a test for emitting drain event in date file logger");
}
t.end();
});
batch.tearDown(async () => {
try {
const files = fs.readdirSync("logs");
await removeFiles(files.map(filename => `logs/${filename}`));
fs.rmdirSync("logs");
} catch (e) {
// doesn't matter
}
});
batch.end();
});