In 15.2.2 Older (and discouraged) serial test harness there is an example
of:
TESTS_ENVIRONMENT = $(PERL) -Mstrict -w
TESTS = foo.pl bar.pl baz.pl
I haven't written a little Makefile.am to test some conjectures (a pedantic
'guess). The example seems to indicate that the (undefined) $(PERL) compiles
all the programs in TESTS and these programs can only be perl programs. But
since perl requires a shebang (#!/usr/bin/perl) as the first executable
line, the execution might as well be from calling the program from bash. How
do I determine that program execution is from using the TESTS_ENVIRONMENT
variable and not from a direct call to bash?
The appearance is that when TESTS_ENVIRONMENT is used then the only tests
allowed in TESTS are perl programs. Since shell script and perl programs
both have the first line as the shebang, how can I verify that when TESTS
contains a mixed bag of test programs that the TESTS_ENVIRONMENT perl
compiler is called? Or is the assumption that the example requires that when
TESTS_ENVIRONMENT is used that the TESTS variable only reference test
programs which can be compiled by the TESTS_ENVIRONMENT compiler incorrect?
I have tried both with TESTS = perl_program and TESTS = perl_program
bash_script with the same result.
The basic question is how is the association between the compiler in
TESTS_ENVIRONMENT and the test program in TESTS made. In parallel processing
this association is made explicit using TEST_EXTENSIONS and the various
ext_SOMETHING. There is no clear rule here other than an example which
leaves as many questions as it answers.
Art
=================== Makefile.am ===================
## Process this file with automake to produce Makefile.in
# select testing format
AUTOMAKE_OPTIONS = serial-tests
# set compiler for perl program
TESTS_ENVIRONMENT = /usr/bin/perl
# Testing
check_SCRIPTS = test1.sh hello.pl
TESTS = $(check_SCRIPTS)
test1.sh:
echo '#!/bin/bash' > test1.sh
echo "echo 'PASS: 0'" >> test1.sh
echo "exit 0" >> test1.sh
chmod +x test1.sh
hello.pl:
echo "#!/usr/bin/perl" > hello.pl
echo "use warnings; " >> hello.pl
echo 'print "Hello, World!\n";' >> hello.pl
echo "exit 0;" >> hello.pl
chmod +x hello.pl
CLEANFILES = $(test_SOURCES)
