Since net_test_wget() is testing a command and is in test/cmd it should
be in the 'cmd' test suite, not 'lib'.
Saving and restoring the values of the environment variables that the
test manipulates is necessary to avoid a regression when running the
whole ut test suite. A minimal reproducer is:
$ ./u-boot -T -c "ut cmd net_test_wget; ut dm dm_test_eth_act" | \
grep -E "(Test:|Failures:)"
Reported-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
(cherry picked from commit 20f641987f)
8647480ac9