diff --git a/src/utils/getDefaultToolbarButtons.test.js b/src/utils/getDefaultToolbarButtons.test.js
new file mode 100644
index 000000000..2fa45839b
--- /dev/null
+++ b/src/utils/getDefaultToolbarButtons.test.js
@@ -0,0 +1,26 @@
+import getDefaultToolbarButtons from './getDefaultToolbarButtons.js'
+
+describe('getDefaultToolbarButtons.js', () => {
+  it('returns a non-empty array', () => {
+    const basePath = '/'
+
+    const buttons = getDefaultToolbarButtons(basePath)
+
+    expect(buttons.length).toBeGreaterThan(0)
+  })
+
+  it('uses the provided basePath in buttons with an svgUrl property', () => {
+    const basePath = '/demo/'
+
+    const buttons = getDefaultToolbarButtons(basePath)
+    const hasOneOrMoreButtonsWithSvgUrlProperty = buttons.some(btn =>
+      btn.hasOwnProperty('svgUrl')
+    )
+    const usesBasePathInButtonSvgUrls = buttons.every(
+      btn => !btn.hasOwnProperty('svgUrl') || btn.svgUrl.includes(basePath)
+    )
+
+    expect(hasOneOrMoreButtonsWithSvgUrlProperty).toBeTruthy()
+    expect(usesBasePathInButtonSvgUrls).toBeTruthy()
+  })
+})