fix(nyaa): nyaa test fix

src/background/strategies/nyaa.js

@@ -1,4 +1,3 @@
-
 const fetch = require('node-fetch')
 const cheerio = require('cheerio')
 
@@ -14,24 +13,32 @@ module.exports = class Nyaa
 
 	async parse()
 	{
+		if(this.promise)
+			await this.promise
+
+		this.promise = new Promise(async (resolve) => {
 			let html;
 			try {
 				html = await fetch('https://nyaa.si/' + (this.threadId ? `view/${this.threadId}` : (this.hash ? `?q=${this.hash}` : '')))
 			} catch(err) {
-			return
+				resolve()
 			}
 			if(!html)
-			return
+				resolve()
 			html = await html.textConverted()
 			const $ = cheerio.load(html)
 			let topicTitle = $('.panel-title').first().text()
 			if(!topicTitle)
-			return
+				resolve()
 
 			topicTitle = topicTitle.replace(/\t/g, '').replace(/\n/g, '')
-		return {
+
+			resolve({
 				name: topicTitle,
 				description: $('#torrent-description').text(),
-		}
+			})
+		})
+
+		return await this.promise
 	}
 }