diff --git a/src/core/ws/utils/getPublicData.test.ts b/src/core/ws/utils/getPublicData.test.ts
new file mode 100644
index 000000000..2820301f7
--- /dev/null
+++ b/src/core/ws/utils/getPublicData.test.ts
@@ -0,0 +1,38 @@
+import { getPublicData } from './getPublicData'
+
+it('returns a short string as-is', async () => {
+  expect(await getPublicData('')).toBe('')
+  expect(await getPublicData('hello')).toBe('hello')
+})
+
+it('returns a truncated long string', async () => {
+  expect(await getPublicData('this is a very long string')).toBe(
+    'this is a very long stri…',
+  )
+})
+
+it('returns a short Blob text as-is', async () => {
+  expect(await getPublicData(new Blob(['']))).toBe('Blob()')
+  expect(await getPublicData(new Blob(['hello']))).toBe('Blob(hello)')
+})
+
+it('returns a truncated long Blob text', async () => {
+  expect(await getPublicData(new Blob(['this is a very long string']))).toBe(
+    'Blob(this is a very long stri…)',
+  )
+})
+
+it('returns a short ArrayBuffer text as-is', async () => {
+  expect(await getPublicData(new TextEncoder().encode(''))).toBe(
+    'ArrayBuffer()',
+  )
+  expect(await getPublicData(new TextEncoder().encode('hello'))).toBe(
+    'ArrayBuffer(hello)',
+  )
+})
+
+it('returns a truncated ArrayBuffer text', async () => {
+  expect(
+    await getPublicData(new TextEncoder().encode('this is a very long string')),
+  ).toBe('ArrayBuffer(this is a very long stri…)')
+})