Address e2e test suggestion horizontally.

[camilamacedo86]

This task is for we address the suggestion made in #3499 (comment) for all tests/e2e-tests.

Edit: suggestion is to prefer Expect(len(podNames)).To(Equal(1)) to len(podNames) == 1

[prafull01]

/assign

[prafull01]

Waiting for #3499 PR to be merged, so that all the tests can be fixed horizontally.

[joelanford]

I think this can be improved further to Expect(podNames).To(HaveLen(1))

[prafull01]

Sure @joelanford , I will take care of that :)