fix tests

package.json

@@ -49,6 +49,7 @@
     "@types/mocha": "^5.2.5",
     "@types/node": "^10.11.7",
     "mocha": "^5.2.0",
+    "p-event": "^4",
     "typescript": "3.6.4"
   },
   "scripts": {

test/test.ts

@@ -1,5 +1,7 @@
 import * as assert from 'assert';
 import * as mocha from 'mocha';
+import pEvent = require('p-event')
+
 const EPub = require('../../epub');
 
 mocha.describe('EPub', () => {
@@ -11,15 +13,22 @@ mocha.describe('EPub', () => {
 		);
 	});
 
-	mocha.it('basic parsing', () => {
+	mocha.it('basic parsing', async () => {
 		const epub = new EPub('./example/alice.epub');
 
-		epub.on('end', ()=> {
-			assert.ok(epub.metadata.title)
-			assert.equal(epub.metadata.title, "Alice's Adventures in Wonderland")
-		})
+		epub.parse()
+		await pEvent(epub, 'end')
+
+		assert.ok(epub.metadata.title)
+		assert.equal(epub.metadata.title, "Alice's Adventures in Wonderland")
+
+		assert.equal(epub.toc.length, 14)
 
-		epub.parse();
+		assert.ok(epub.toc[3].level)
+		assert.ok(epub.toc[3].order)
+		assert.ok(epub.toc[3].title)
+		assert.ok(epub.toc[3].href)
+		assert.ok(epub.toc[3].id)
 
 		assert.strictEqual(
 			epub.imageroot,
@@ -34,18 +43,16 @@ mocha.describe('EPub', () => {
 		assert.ok(res);
 	});
 
-	mocha.it('raises descriptive errors', () => {
-		// const epub = new EPub('./example/alice.epub')
+	mocha.it('raises descriptive errors', async () => {
 		const epub = new EPub('./example/alice_broken.epub')
 
-		epub.on('error', (err) => {
-			assert.ok(err.message.includes('Error: Parsing container XML failed in TOC Error: Invalid character in entity name'))
-		})
-
-		epub.on('end', () => {
-			assert.fail('should not have gotten here')
-		})
-
-		epub.parse()
+		try {
+			epub.parse()
+			await pEvent(epub, 'end')
+		} catch (err) {
+			assert.ok(err.message.includes('Parsing container XML failed in TOC Error: Invalid character in entity name'))
+			return
+		}
+		assert.fail('should not get here')
 	})
 });