feat: heap tests

src/__tests__/MinHeap.ts

@@ -0,0 +1,30 @@
+import MinHeap from "@code/MinHeap";
+
+test("min heap", function () {
+    const heap = new MinHeap();
+
+    expect(heap.length).toEqual(0);
+
+    heap.insert(5);
+    heap.insert(3);
+    heap.insert(69);
+    heap.insert(420);
+    heap.insert(4);
+    heap.insert(1);
+    heap.insert(8);
+    heap.insert(7);
+
+    expect(heap.length).toEqual(8);
+    expect(heap.delete()).toEqual(1);
+    expect(heap.delete()).toEqual(3);
+    expect(heap.delete()).toEqual(4);
+    expect(heap.delete()).toEqual(5);
+    expect(heap.length).toEqual(4);
+    expect(heap.delete()).toEqual(7);
+    expect(heap.delete()).toEqual(8);
+    expect(heap.delete()).toEqual(69);
+    expect(heap.delete()).toEqual(420);
+    expect(heap.length).toEqual(8);
+});
+
+