diff --git a/packages/mermaid/src/mermaidAPI.spec.ts b/packages/mermaid/src/mermaidAPI.spec.ts
index 249e268f2..a61edaaba 100644
--- a/packages/mermaid/src/mermaidAPI.spec.ts
+++ b/packages/mermaid/src/mermaidAPI.spec.ts
@@ -196,53 +196,45 @@ describe('mermaidAPI', () => {
   describe('appendDivSvgG', () => {
     // cspell:ignore dthe
 
-    jsdomIt('appends a div node', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('appends a div node', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId');
       const divNode = ensureNodeFromSelector('div');
       const svgNode = ensureNodeFromSelector('svg', divNode);
       ensureNodeFromSelector('g', svgNode);
     });
-    jsdomIt('the id for the div is "d" with the id appended', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('the id for the div is "d" with the id appended', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId');
       const divNode = ensureNodeFromSelector('div');
       expect(divNode?.getAttribute('id')).toBe('dtheId');
     });
 
-    jsdomIt('sets the style for the div if one is given', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('sets the style for the div if one is given', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId', 'given div style', 'given x link');
       const divNode = ensureNodeFromSelector('div');
       expect(divNode?.getAttribute('style')).toBe('given div style');
     });
 
-    jsdomIt('sets the svg width to 100%', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('sets the svg width to 100%', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId');
       const svgNode = ensureNodeFromSelector('div > svg');
       expect(svgNode.getAttribute('width')).toBe('100%');
     });
-    jsdomIt('the svg id is the id', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('the svg id is the id', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId');
       const svgNode = ensureNodeFromSelector('div > svg');
       expect(svgNode.getAttribute('id')).toBe('theId');
     });
-    jsdomIt('the svg xml namespace is the 2000 standard', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('the svg xml namespace is the 2000 standard', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId');
       const svgNode = ensureNodeFromSelector('div > svg');
       expect(svgNode.getAttribute('xmlns')).toBe('http://www.w3.org/2000/svg');
     });
-    jsdomIt('sets the  svg xlink if one is given', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('sets the  svg xlink if one is given', ({ body }) => {
       appendDivSvgG(body, 'theId', 'dtheId', 'div style', 'given x link');
       const svgNode = ensureNodeFromSelector('div > svg');
       expect(svgNode.getAttribute('xmlns:xlink')).toBe('given x link');
     });
-    jsdomIt('returns the given parentRoot d3 nodes', () => {
-      const body = select<HTMLBodyElement, never>('body');
+    jsdomIt('returns the given parentRoot d3 nodes', ({ body }) => {
       expect(appendDivSvgG(body, 'theId', 'dtheId')).toEqual(body);
     });
   });
diff --git a/packages/mermaid/src/tests/util.ts b/packages/mermaid/src/tests/util.ts
index 09f7da2d4..c5ac9c149 100644
--- a/packages/mermaid/src/tests/util.ts
+++ b/packages/mermaid/src/tests/util.ts
@@ -63,7 +63,9 @@ export const MOCKED_BBOX = {
 };
 
 interface JsdomItInput {
-  // eslint-disable-next-line
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  body: Selection<HTMLBodyElement, never, HTMLElement, any>; // The `any` here comes from D3'as API.
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
   svg: Selection<SVGSVGElement, never, HTMLElement, any>; // The `any` here comes from D3'as API.
 }
 
@@ -105,8 +107,9 @@ export function jsdomIt(message: string, run: (input: JsdomItInput) => void | Pr
       setOnProtectedConstant(global, 'document', dom.window.document); // Fool D3 into thinking it's in a browser
       setOnProtectedConstant(global, 'MutationObserver', undefined); // JSDOM doesn't like cytoscape elements
 
-      const svgSelection = select<SVGSVGElement, never>('svg');
-      await run({ svg: svgSelection });
+      const body = select<HTMLBodyElement, never>('body');
+      const svg = select<SVGSVGElement, never>('svg');
+      await run({ body, svg });
     } finally {
       setOnProtectedConstant(global, 'window', oldWindow);
       setOnProtectedConstant(global, 'document', oldDocument);
diff --git a/packages/mermaid/src/utils.spec.ts b/packages/mermaid/src/utils.spec.ts
index f683fe146..35a2dfdd3 100644
--- a/packages/mermaid/src/utils.spec.ts
+++ b/packages/mermaid/src/utils.spec.ts
@@ -6,7 +6,6 @@ import { addDiagrams } from './diagram-api/diagram-orchestration.js';
 import memoize from 'lodash-es/memoize.js';
 import { preprocessDiagram } from './preprocess.js';
 import { MOCKED_BBOX, ensureNodeFromSelector, jsdomIt } from './tests/util.js';
-import { select } from 'd3';
 
 addDiagrams();
 
@@ -370,36 +369,31 @@ describe('when initializing the id generator', function () {
 });
 
 describe('when inserting titles', function () {
-  jsdomIt('does nothing if the title is empty', function () {
-    const svg = select<SVGSVGElement, never>('svg');
+  jsdomIt('does nothing if the title is empty', function ({ svg }) {
     utils.insertTitle(svg, 'testClass', 0, '');
     const titleNode = document.querySelector('svg > text');
     expect(titleNode).toBeNull();
   });
 
-  jsdomIt('appends the title as a text item with the given title text', function () {
-    const svg = select<SVGSVGElement, never>('svg');
+  jsdomIt('appends the title as a text item with the given title text', function ({ svg }) {
     utils.insertTitle(svg, 'testClass', 5, 'test title');
     const titleNode = ensureNodeFromSelector('svg > text');
     expect(titleNode.innerHTML).toBe('test title');
   });
 
-  jsdomIt('x value is the bounds x position + half of the bounds width', () => {
-    const svg = select<SVGSVGElement, never>('svg');
+  jsdomIt('x value is the bounds x position + half of the bounds width', ({ svg }) => {
     utils.insertTitle(svg, 'testClass', 5, 'test title');
     const titleNode = ensureNodeFromSelector('svg > text');
     expect(titleNode.getAttribute('x')).toBe(`${MOCKED_BBOX.x + MOCKED_BBOX.width / 2}`);
   });
 
-  jsdomIt('y value is the negative of given title top margin', () => {
-    const svg = select<SVGSVGElement, never>('svg');
+  jsdomIt('y value is the negative of given title top margin', ({ svg }) => {
     utils.insertTitle(svg, 'testClass', 5, 'test title');
     const titleNode = ensureNodeFromSelector('svg > text');
     expect(titleNode.getAttribute('y')).toBe(`${MOCKED_BBOX.y - 5}`);
   });
 
-  jsdomIt('class is the given css class', () => {
-    const svg = select<SVGSVGElement, never>('svg');
+  jsdomIt('class is the given css class', ({ svg }) => {
     utils.insertTitle(svg, 'testClass', 5, 'test title');
     const titleNode = ensureNodeFromSelector('svg > text');
     expect(titleNode.getAttribute('class')).toBe('testClass');