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...	...	@@ -108,3 +108,10 @@ func (s DockerSuite) TestDiffEnsureOnlyKmsgAndPtmx(c check.C) {
108	108	}
109	109	}
110	110	}
	111	+
	112	+// https://github.com/docker/docker/pull/14381#discussion_r33859347
	113	+func (s DockerSuite) TestDiffEmptyArgClientError(c check.C) {
	114	+ out, _, err := runCommandWithOutput(exec.Command(dockerBinary, "diff", ""))
	115	+ c.Assert(err, check.NotNil)
	116	+ c.Assert(strings.TrimSpace(out), check.Equals, "Container name cannot be empty")
	117	+}