avajs beforeEach hook issue

Test cases where a Foo object that has a bar method which tracks its calls. Within the beforeEach hook, a Foo object is constructed and its bar method is called with the argument foo, where foo is equal to the same Foo object.

What's wrong

Running tests in parallel causes the test.context.bar.prototype to not be strictly equal to foo.bar.mock.calls[0].arguments[0].foo.bar.prototype.

• There is no difference between the three cases they're just here to demonstrate running test cases in parallel
• No issue occurs when running tests in serial mode or when there is only one case.
• The last test case will always succeed.

Tested on versions:

• 6.2.0

Inside the following env:

• Linux
• Node v23.1.0
• npm v10.9.0

Actual

• src/call-from-within-case.ava.test.js: KO
• src/call-from-within-hook.ava.test.js: KO
• src/no-hook.ava.test.js: OK
• src/serial.ava.test.js: OK
• src/call-from-within-hook.node.test.js: OK

Expected

It is expected that all tests pass.

Run tests

Using ava test runner:

• npm test

Using node test runner:

• npm run test:node

Debug

• npm test -- debug src/call-from-within-hook.ava.test.js

Devtools:

• curl 127.0.0.1:9229/json -s | jq .[].devtoolsFrontendUrl -r
• Open the URL inside chrome.

CLI:

• node inspect 127.0.0.1:9229