source: kBuild/vendor/gnumake/current/tests/scripts/features/echoing@ 3208

#                                                                    -*-perl-*-
$description = "The following test creates a makefile to test command
echoing.  It tests that when a command line starts with
a '\@', the echoing of that line is suppressed.  It also
tests the -n option which tells make to ONLY echo the
commands and no execution happens.  In this case, even
the commands with '\@' are printed. Lastly, it tests the
-s flag which tells make to prevent all echoing, as if
all commands started with a '\@'.";

$details = "This test is similar to the 'clean' test except that a '\@' has
been placed in front of the delete command line.  Four tests
are run here.  First, make is run normally and the first echo
command should be executed.  In this case there is no '\@' so
we should expect make to display the command AND display the
echoed message.  Secondly, make is run with the clean target,
but since there is a '\@' at the beginning of the command, we
expect no output; just the deletion of a file which we check
for.  Third, we give the clean target again except this time
we give make the -n option.  We now expect the command to be
displayed but not to be executed.  In this case we need only
to check the output since an error message would be displayed
if it actually tried to run the delete command again and the
file didn't exist. Lastly, we run the first test again with
the -s option and check that make did not echo the echo
command before printing the message.\n";

$example = "EXAMPLE_FILE";

touch($example);

# TEST #1
# -------

run_make_test("
all:
\techo This makefile did not clean the dir... good
clean:
\t\@$delete_command $example\n",
              '', 'echo This makefile did not clean the dir... good
This makefile did not clean the dir... good');

# TEST #2
# -------

run_make_test(undef, 'clean', '');
if (-f $example) {
  $test_passed = 0;
  unlink($example);
}

# TEST #3
# -------

run_make_test(undef, '-n clean', "$delete_command $example\n");


# TEST #4
# -------

run_make_test(undef, '-s', "This makefile did not clean the dir... good\n");


1;