@@ -186,3 +186,30 @@ func TestExecAfterDaemonRestart(t *testing.T) {

 	logDone("exec - exec running container after daemon restart")

 }

+

+// Regresssion test for #9155, #9044

+func TestExecEnv(t *testing.T) {

+	defer deleteAllContainers()

+

+	runCmd := exec.Command(dockerBinary, "run",

+		"-e", "LALA=value1",

+		"-e", "LALA=value2",

+		"-d", "--name", "testing", "busybox", "top")

+	if out, _, _, err := runCommandWithStdoutStderr(runCmd); err != nil {

+		t.Fatal(out, err)

+	}

+

+	execCmd := exec.Command(dockerBinary, "exec", "testing", "env")

+	out, _, err := runCommandWithOutput(execCmd)

+	if err != nil {

+		t.Fatal(out, err)

+	}

+

+	if strings.Contains(out, "LALA=value1") ||

+		!strings.Contains(out, "LALA=value2") ||

+		!strings.Contains(out, "HOME=/root") {

+		t.Errorf("exec env(%q), expect %q, %q", out, "LALA=value2", "HOME=/root")

+	}

+

+	logDone("exec - exec inherits correct env")

+}