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#! /bin/sh
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
# All rights reserved.
#
# This file is part of HDF5.  The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the files COPYING and Copyright.html.  COPYING can be found at the root
# of the source code distribution tree; Copyright.html can be found at the
# root level of an installed copy of the electronic HDF5 document set and
# is linked from the top-level documents page.  It can also be found at
# http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have
# access to either file, you may request a copy from help@hdfgroup.org.

#
# Tests for the H5check_version function.
#
# Programmer: Albert Cheng
#	      Sep 28, 2009

# Variables filled in by the configure process.
# Determine the configure options of the hdf5 library and executables.
Shared_Lib=@enable_shared@
Static_Lib=@enable_static@
Static_exec=@STATIC_EXEC@


# Function definitions
# Print a line-line message left justified in a field of 70 characters.
#
LINEMSG() {
   SPACES="                                                               "
   echo "$* $SPACES" | cut -c1-70 | tr -d '\012'
}


# Print a "SKIP" message
SKIP() {
    LINEMSG $*
    echo  " -SKIP-"
}
  

# Run a test and print PASS or *FAIL*.  If a test fails then increment
# the `nerrors' global variable and (if $verbose is set) display the
# difference between the actual output and the expected output. The
# expected output generated according to the parameter values and compared
# against actual output. 
# The expected and actual output files are removed unless $HDF5_NOCLEANUP
# has a non-zero value.
# $1: the set value of $HDF5_DISABLE_VERSION_CHECK. (unset means not to set
#     it at all.
# $2: Change the version number(s) to cause a mismatch. (none means no
#     mismatch).
#
# Expected results:
# 		Value of $HDF5_DISABLE_VERSION_CHECK
#		unset	""	-1	0	1	2	3
# Matched	OK	OK	OK	OK	OK	OK	OK
# Mismatched	W/A	W/A	W/A	W/A	W2/OK	OK	W2/OK
# Result codes:
# OK:    No warning, exit 0.
# W/A:   Warning, abort and exit non-0.
# W2/OK: Different Warning, exit 0.
#
# Implemented only exit code matching. Still need to match output.
TESTING() {
    DEBUGPRINT command is $0 $*
    TEST_NAME=tcheck_version                  # The test name
    TEST_BIN=`pwd`/$TEST_NAME # The path of the test binary

    expect=expected_out
    actual=actual_out
    actual_err=actual_err_out
    arguments=

    h5DisableVersion="$1"
    wrongversionnumbers="$2"

    if [ "$h5DisableVersion" = unset ]; then
	envcmd=""		# noop
    else
	envcmd="env HDF5_DISABLE_VERSION_CHECK=$h5DisableVersion"
    fi

    if [ "$wrongversionnumbers" = none ]; then
	# OK: No warning, exit 0
	cp /dev/null $expect
	expected_code=0
    else
	arguments=-t"$wrongversionnumbers"
	case "$h5DisableVersion" in
	    2)	# OK: No warning, exit 0
		cp /dev/null $expect
		expected_code=0
		;;
	    [13-9]|[1-9][0-9]*)
		# W2/OK: Different Warning, exit 0.
		cp /dev/null $expect   #NEED FIX
		expected_code=0
		;;
	    *)	# W/A:   Warning, abort and exit non-0.
		cp /dev/null $expect    #NEED FIX
		expected_code=1		# non-zero since abort exit code maybe
		;;			# machine dependent.
	esac
    fi

    # Run test.
    LINEMSG $envcmd $TEST_NAME $arguments
    (
      echo "#############################"
      echo "Expected output for $TEST_ERR" 
      echo "#############################"
      $envcmd $RUNSERIAL $TEST_BIN  $arguments
    ) >$actual 2>$actual_err
    ret_code=$?
    
    if [ \( $expected_code -eq 0 -a $expected_code -eq $ret_code \) -o \
	   \( $expected_code -ne 0 -a $ret_code -ne 0 \) ]; then
	echo " PASSED"
    else
	echo "*FAILED*"
	echo "    Expected exit code ($expected_code) differs from actual code ($ret_code)"
	nerrors="`expr $nerrors + 1`"
    fi

    # Clean up output file
    if test -z "$HDF5_NOCLEANUP"; then
	rm -f $expected_out $actual_out $actual_err
    fi
}


# Echo parameters for debugging if verbose mode is on.
DEBUGPRINT() {
    if [ -n "$verbose" ]; then
	echo $*
    fi
}


# MAIN Body
nerrors=0
H5_HAVE_EMBEDDED_LIBINFO=`grep '#define H5_HAVE_EMBEDDED_LIBINFO ' ../src/H5pubconf.h`

# The build (current) directory might be different than the source directory.
if test -z "$srcdir"; then
   srcdir=.
fi

# Skip the rest if embedded-libinfo is not enabled.
if [ -z "$H5_HAVE_EMBEDDED_LIBINFO" ]; then
    echo "embedded-libinfo is not enabled. Test skipped."
    exit 0
fi
h5libsettings=../src/libhdf5.settings 

# Figure out library version numbers from the header file.
h5versmajor=`grep '#define H5_VERS_MAJOR' $srcdir/../src/H5public.h | cut -f2` 
h5versminor=`grep '#define H5_VERS_MINOR' $srcdir/../src/H5public.h | cut -f2` 
h5versrelease=`grep '#define H5_VERS_RELEASE' $srcdir/../src/H5public.h | cut -f2` 
DEBUGPRINT $h5versmajor.$h5versminor.$h5versrelease


# Three Categories of tests:
# Normal: where the version numbers all matched (wrong_version == none).
# Mismatched version numbers (could be Major or minor version
#	or release numbers or a combination of all three.)
# Test all the above with different values of the environment variable,
# HDF5_DISABLE_VERSION_CHECK, as unset, "", -1, 0, 1, 2, 3

for val_disable_version_check in unset "" -1 0 1 2 3; do
    for wrong_version in none M m r Mm Mr mr; do
	TESTING "$val_disable_version_check" "$wrong_version"
    done
done


# Check and report results.
if [ $nerrors -gt 0 ]; then
    echo "***$nerrors errors encountered***"
    exit 1
else
    echo "No error encountered"
    exit 0
fi