typescriptify and cleanup

test/pause_and_resume.spec.ts

@@ -0,0 +1,82 @@
+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);
+	});
+});