#
# Collect all tests.
#
TESTS = $(find . -regex $'^Test[0-9]*$')
TestMap = $(empty-map)
foreach(tst => ..., $(TESTS))
    d = $(dir $(dirname $(tst)))
    TestMap =
        if $(TestMap.mem $d)
            value $(TestMap.add $d, $(array $(TestMap.find $d), $(tst)))
        else
            value $(TestMap.add $d, $(tst))
    export TestMap

private.TestDir = $(dir .)
runtest(subtest) =
    setenv(OMAKEPATH, $(absname $(ROOT)/lib))
    setenv(OMAKEFLAGS, $"--no--progress --no--print-status")
    PATH[] = $(absname $(ROOT)/src/main) $(PATH)
    if $(test -f $(subtest))
        echo "running osh $(subtest)" >> $(resultfile)
        res = $(shell-code osh $(subtest) >>& $(resultfile))
        export res
    elseif $(test -f $(subtest)/run.osh)
        cd $(subtest)
        echo "running osh run.osh" >>& $(resultfile)
        res = $(shell-code osh run.osh >>& $(resultfile))
        export res
    elseif $(test -f $(subtest)/OMakeroot -o -f $(subtest)/Root.om)
        cd $(subtest)
        echo "running omake in $(absname .)" >> $(resultfile)
        rm -f .omakedb
        res = $(shell-code omake >>& $(resultfile))
        export res
    else
        echo $"*** Don't know how to run tests in $(subtest)!" >> $(resultfile)
        eprintln($"*** Don't know how to run tests in $(in $(TestDir), $(subtest))!")
        res = 1
        export res

    # Exit code 2 is a suggestion, not an error
    if $(equal $(res), 0)
        value success
    elseif $(equal $(res), 2)
        value note
    else
        value failure

static. =
    HAS_DATE = $(CheckProg date)

Shell. +=
    testit(argv) =
        result = $"Tested $(in .., $(dir .)): "
        failures = false
	notes = false
        subtests = $(file $(set $(TestMap.find $(dir .))))
        if $(public.HAS_DATE)
            date > $(resultfile)
        else
            fprint($(resultfile), $"Starting tests in $(in $(ROOT), $(dir .)):")
        foreach(subtest => ..., $(subtests))
            echo >> $(resultfile)
            echo $"==== $(subtest)" >> $(resultfile)
            switch $(runtest $(subtest))
            case success
                result = $(result).
                echo "--- success" >> $(resultfile)
                export
            case note
                result = $(result)N
		notes = true
                echo "--- note" >> $(resultfile)
                export
            default
                result = $(result)E
                failures = true
                echo "*** failure" >> $(resultfile)
                export
            export
        if $(failures)
            result += $"$(nl)    *** SOME TESTS FAILED! See $(in $(ROOT), $(resultfile)) for details"
            export
        elseif $(notes)
            result += $"$(nl)    --- See notes $(in $(ROOT), $(resultfile)) for details"
            export
        println($(result))

.SUBDIRS: $(TestMap.keys)
    resultfile = $(file result.log)
    check: /.PHONY/all :effects: $(resultfile)
        testit $(resultfile)

    clean:
        rm -f $(resultfile) *.omc Test*/.omakedb* Test*/*.omc Test*/stdout Test*/output

CLEAN[] =
    awk/*/Subst.out
    shell/Test1/sub
    vmount/Test1/build/foo*
    vmount/Test1/src/*omc
    test/simple/Test1/x
    test/simple/Test3/a
    test/targets/Test1/A
    test/targets/Test1/B

clean:
    rm -rf *.omc $(CLEAN)