build: Run e2e tests against ic-ref#471

Merged

hansl merged 9 commits intomasterfrom

joachim/e2e-ic-ref

Apr 20, 2020

Commits on Mar 22, 2020

fixup: use shorthands for test and env vars
hansl
committed

Commits on Apr 17, 2020

fixup: fix tests
hansl
committed