add index test

tests/index.test.ts

@@ -0,0 +1,37 @@
+import linkInspector from "../index";
+
+test('Broken link calls callback', async () => {
+    const promise1 = new Promise<void>((resolve) => {
+        const callback = (link: string) => {
+            expect(link).toBe('https://www.google.com/page-not-found');
+            resolve();
+        };
+
+        linkInspector("https://www.google.com/page-not-found", callback);
+    });
+
+    const promise2 = new Promise<void>((resolve) => {
+        const callback = (link: string) => {
+            expect(link).toBe('https://www.wikipedia.org/page-not-found');
+            resolve();
+        };
+
+        linkInspector("https://www.wikipedia.org/page-not-found", callback);
+    });
+
+    await promise1;
+    await promise2;
+});
+
+test('Test on real folder', async () => {
+    const promise = new Promise<void>((resolve) => {
+        const callback = (link: string) => {
+            expect(link).toBe('https://www.wikipedia.org/page-not-found');
+            resolve();
+        };
+
+        linkInspector("tests/test-folder", callback);
+    });
+
+    await promise;
+});

tests/test-folder/test.txt

@@ -0,0 +1,6 @@
+bowishadve https://www.google.com/ tribution pendaytive 
+astrus digikiki quz trudicats alginall shopolized 
+beatorlds reflupper https://www.wikipedia.org/page-not-found 
+nucch sa eadicerolawyne antilds ij nessinfulleter 
+expercity larv posion vikins revotempution norted 
+https://www.un.org/ sweeds corehooker iwoppion burgination