Testing Pouch/sqlite memory

sqlite-plugin-memory-test.js

// Open the app, open js debugger and ADB console
// Change the size, in MB
// After running this test, close the app to clear memory.
// If the test is successull it will return the payload size in MB
// and on the next line it will display the doc:
//    15 MB
//    newDoc: {"ok":true,"id":"26670b3f-7b36-43d4-a5cb-1783b0108c77","rev":"1-c0f943597a9c1f9160d0880081e91803"}
// When it fails, it only returns the payload size. 
// Get the error from ADB console.

let size = 15

let pouchDBOptions = {
adapter: 'cordova-sqlite',
location: 'default',
androidDatabaseImplementation: 2,
key:'test'
}
let pouch = new PouchDB('test', pouchDBOptions);
function formatBytes(a,b=2){if(0===a)return"0 Bytes";const c=0>b?0:b,d=Math.floor(Math.log(a)/Math.log(1024));return parseFloat((a/Math.pow(1024,d)).toFixed(c))+" "+["Bytes","KB","MB","GB","TB","PB","EB","ZB","YB"][d]}

let s = 'x'.repeat(size*1024*1024)
let len =(new TextEncoder().encode(s)).length
console.log(formatBytes(len))
let doc = {
foo:s
}
try {
  let newDoc = await pouch.post(doc)
  console.log("newDoc: " + JSON.stringify(newDoc))
} catch (e) {
  console.log("Database error: " + e);
  console.trace();
}