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 For: User
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Following make targets are available

make compile

This will compile and link the tests.

make run

This will execute all the tests.

make check
make all

This will build and run tests.

The following make variables may help you in testing:

 - V / VERBOSE  - run tests with a lot of output
 - TIMEOUTFACTOR=nn - increase test timeout nn times.

You can pass the following 2 environment variables to "make run":
 - make run SIMULATOR=qemu-sh4

If you need to test just a subset of all test, delete subdirectories
you do not need.

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 For: Developer
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The structure of this test system is:
 test/                    toplevel dir containing common test code
 test/Rules.mak           Common build code
 test/Test.mak            Runtime test make code
 test/subdir/             code specific to a subsystem is stored in a subdir
 test/subdir/Makefile.in  describe the tests to run
 test/subdir/Makefile     test entry point, includes needed upper-level
                          makefiles plus Makefile.in
 test/subdir/*.c          the tests

Each subdir has a Makefile (same for any subdir) that must include in strict order:
  - the upper-level Rules.mak file
  - the Makefile.in
  - the upper-level Test.mak file
Makefile.in may be used to define the TESTS and TESTS_DISABLED variables.
If you do not, TESTS is built automatically based upon all the .c files in the subdir.
TESTS := foo
TESTS_DISABLED := bar
Each test must use a similar .c name; so the "foo" test needs a "foo.c".

Additionally, the following options further control specific test behavior:
CFLAGS_foo    := extra cflags to use to compile test
LDFLAGS_foo   := extra ldflags to use to link test
OPTS_foo      := extra options to pass to test
RET_foo       := expected exit code of test; default is 0
WRAPPER_foo   := execute stuff just before test

Or to control all tests in a subdir:
EXTRA_CLEAN   := extra files to remove in the clean target
EXTRA_DIRS    := extra directories to remove in the clean target
EXTRA_CFLAGS  := -DFOO
EXTRA_LDFLAGS := -lpthread
OPTS          :=
WRAPPER       :=

If you want to compare the output of a test with known good output, then just
create a local file named "foo.out.good" and the output generated by the test
"foo" will be automatically stored in "foo.out" and compared to "foo.out.good".