Flaky e2e local tests

[maximilien]

In what area(s)?

e2e integration tests

Classifications:
kind cleanup

What version of Knative Client?

➜  client git:(improve-it) ✗ ./kn version
Version:      v20190718-local-0b348d7-dirty
Build Date:   2019-07-18 23:07:07
Git Revision: 0b348d7
Dependencies:
- serving:    v0.6.0

What version of Knative Serving running on your cluster?

0.7.x

Expected Behavior

Should be able to run ./test/e2e-tests-local.sh that is connected to my IKS or minikube cluster.
Should be able to run ./test/e2e-tests-local.sh multiple times in sequence.

Actual Behavior

I get errors across tests since the test namespace used across tests is the same and gets deleted after a test but cannot be used (immediately) in subsequent test since it's being deleted.

Multiple runs produce similar issue with creating the namespace.

Steps to Reproduce the Problem

./test/e2e-tests-local.sh
...
./test/e2e-tests-local.sh

[maximilien]

/assign @maximilien