Files
xml-streamer/test/pause_and_resume.spec.ts
2019-05-31 11:27:48 +03:00

83 lines
2.2 KiB
TypeScript

import fs from "fs";
import "mocha";
import should from "should";
import stream from "stream";
import zlib from "zlib";
import { XmlParser } from "../src/parser";
describe("pause and resume", () => {
it("should properly parse a simple file.", function(done) {
const xmlStream = fs.createReadStream("./test/TestFiles/item.xml");
const parser = new XmlParser({ resourcePath: "/items/item" });
const expectedData = [
{
$: { id: "1", test: "hello" },
subitem:
[{ $: { sub: "TESTING SUB" }, _: "one" },
{ $: { sub: "2" }, _: "two" }]
},
{
$: { id: "2" },
subitem: [{ _: "three" }, { _: "four" }, { _: "five" }]
}];
const actualData: string[] = [];
let dataEventCount = 0;
let isSetTimeoutHappened = true;
this.timeout(4000);
parser.on("data", (data) => {
actualData.push(data);
parser.pause();
should(isSetTimeoutHappened).equal(true);
setTimeout(() => {
parser.resume();
isSetTimeoutHappened = true;
}, 1000);
dataEventCount++;
isSetTimeoutHappened = false;
});
parser.on("error", (err) => {
done(err);
});
parser.on("end", () => {
// console.log('actualData=', actualData)
// console.log('dataEventCount=', dataEventCount)
should(actualData).deepEqual(expectedData);
should(dataEventCount).equal(2);
done();
});
xmlStream.pipe(parser);
});
it("should emit data events with 1sec interval between each using pause and resume.", function(done) {
const xmlStream = fs.createReadStream("./test/TestFiles/medium.xml");
const parser = new XmlParser({ resourcePath: "/items/item" });
let dataEventCount = 0;
let isSetTimeoutHappened = true;
this.timeout(20000);
parser.on("data", (data) => {
parser.pause();
should(isSetTimeoutHappened).equal(true);
setTimeout(() => {
parser.resume();
isSetTimeoutHappened = true;
}, 1000);
dataEventCount++;
isSetTimeoutHappened = false;
});
parser.on("error", (err) => {
done(err);
});
parser.on("end", () => {
// console.log('dataEventCount=', dataEventCount)
should(dataEventCount).equal(10);
done();
});
xmlStream.pipe(parser);
});
});