test: Migrate to vitest from jest

__mocks__/d3.ts

@@ -0,0 +1,67 @@
+// @ts-nocheck
+import { vi } from 'vitest';
+
+let NewD3 = function () {
+  /**
+   *
+   */
+  function returnThis() {
+    return this;
+  }
+  return {
+    append: function () {
+      return NewD3();
+    },
+    lower: returnThis,
+    attr: returnThis,
+    style: returnThis,
+    text: returnThis,
+    0: {
+      0: {
+        getBBox: function () {
+          return {
+            height: 10,
+            width: 20,
+          };
+        },
+      },
+    },
+  };
+};
+
+export const select = function () {
+  return new NewD3();
+};
+
+export const selectAll = function () {
+  return new NewD3();
+};
+
+export const curveBasis = 'basis';
+export const curveLinear = 'linear';
+export const curveCardinal = 'cardinal';
+
+export const MockD3 = (name, parent) => {
+  const children = [];
+  const elem = {
+    get __children() {
+      return children;
+    },
+    get __name() {
+      return name;
+    },
+    get __parent() {
+      return parent;
+    },
+  };
+  elem.append = (name) => {
+    const mockElem = MockD3(name, elem);
+    children.push(mockElem);
+    return mockElem;
+  };
+  elem.lower = vi.fn(() => elem);
+  elem.attr = vi.fn(() => elem);
+  elem.text = vi.fn(() => elem);
+  elem.style = vi.fn(() => elem);
+  return elem;
+};