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Fix flakyness in TestDockerNetworkInternalMode

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Instead of waiting for the DNS to fail, try to access
a specific external IP and verify that 100% of the pakcets
are being lost.

Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
Upstream-commit: a2bb2144b3e0d49ac615976bfac462a307d85f0e
Component: engine
This commit is contained in:
Flavio Crisciani
2018-07-13 11:21:44 -07:00
parent bd3a5eca16
commit 5fea4ae591
1 changed files with 2 additions and 2 deletions
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4
components/engine/integration-cli/docker_cli_network_unix_test.go
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@ -1644,9 +1644,9 @@ func (s *DockerSuite) TestDockerNetworkInternalMode(c *check.C) {
c.Assert(waitRun("first"), check.IsNil)
dockerCmd(c, "run", "-d", "--net=internal", "--name=second", "busybox:glibc", "top")
c.Assert(waitRun("second"), check.IsNil)
out, _, err := dockerCmdWithError("exec", "first", "ping", "-W", "4", "-c", "1", "www.google.com")
out, _, err := dockerCmdWithError("exec", "first", "ping", "-W", "4", "-c", "1", "8.8.8.8")
c.Assert(err, check.NotNil)
c.Assert(out, checker.Contains, "ping: bad address")
c.Assert(out, checker.Contains, "100% packet loss")
_, _, err = dockerCmdWithError("exec", "second", "ping", "-c", "1", "first")
c.Assert(err, check.IsNil)
}