Setting the ETCDCTL_API=3, then calling etcdctl was unwieldy and not
thread safe; all ctl v3 tests had to go through the ctlv3 wrapper and
could not easily mix with v2 commands.
e2e tests use different invocations of etcdctl, so the endpoint used to get
the member list will not necessarily be the same to make the remove call.
Instead, select an endpoint that is not being remove, and connect with that.
Add the bin-dir option to the command line, so the e2e tests can
run with an exist binary. For example(run the command under e2e
directory):
go test -v -timeout 10m -bin-dir /usr/bin -cpu 1,2,4
Signed-off-by: Yiqiao Pu <ypu@redhat.com>
1. change file names
2. now if sub-command errors, the test will receive all
lines from stdout and stderr.
Expected output:
```
read /dev/ptmx: input/output error (expected key2, got ["key1\r\n" "val1\r\n" ""])
```
3. change how we check GRPC timeout (only bypass timeout error when we give 0
timeout)
