#!/bin/bash

# Distinguishing between failures and errors isn't possible in all cases, as
# RPMbuild uses exit code 1 for more than one kind of error, but this script
# still tries to make the distinction where possible.

# Try to run the prep scriptlet of the spec found in the current directory.
# (There is one for each testcase, each in its own directory.) Save a copy of
# the output for inspection.
rpmbuild --define "_sourcedir ${PWD}" -bp *.spec 2>&1 | tee rpmbuild_output
result=${PIPESTATUS[0]} tee_result=${PIPESTATUS[1]}
if test "${test_kind}" = negative ; then
    # This is a negative test. Swap the success and failure codes. Leave any
    # other value as an error code.
    case ${result} in
        (0)
            echo 'RPMbuild succeeded when it should have failed.'
            exit 1
            ;;
        (1)
            echo 'RPMbuild failed as it should.'
            result=0
            ;;
    esac
fi
if test ${result} -ne 0 ; then
    exit ${result}
fi

# Any problem with tee is an error in the test.
case ${tee_result} in
    (0)
        # OK
        ;;
    (1)
        exit 2  # Return error, not failure.
        ;;
    (*)
        exit ${tee_result}
        ;;
esac

# Check whether commands after the signature verification were executed.
grep --quiet --fixed-strings 'Execution of prep continues.' rpmbuild_output
result=$?
case ${result} in
    (0)
        if test "${test_kind}" != negative ; then
            echo 'Execution continued correctly.'
        else
            echo 'Execution continued when it should have stopped.'
            exit 1
        fi
        ;;
    (1)
        if test "${test_kind}" != negative ; then
            echo 'Execution stopped when it should have continued.'
            exit 1
        else
            echo 'Execution stopped correctly.'
        fi
        ;;
    (*)
        exit ${result}  # error in the test
        ;;
esac

if test -n "${required_output}" ; then
    # Look for output that must be present.
    grep --quiet --fixed-strings --regexp="${required_output}" rpmbuild_output
    result=$?
    case ${result} in
        (0)
            echo "The text \"${required_output}\" was correctly present."
            ;;
        (1)
            echo "The text \"${required_output}\" didn't appear where it should."
            exit 1
            ;;
        (*)
            exit ${result}  # error in the test
            ;;
    esac
fi

if test -n "${forbidden_output}" ; then
    # Look for output that must be absent.
    grep --quiet --fixed-strings --regexp="${forbidden_output}" rpmbuild_output
    result=$?
    case ${result} in
        (0)
            echo "The text \"${forbidden_output}\" appeared where it shouldn't."
            exit 1
            ;;
        (1)
            echo "The text \"${forbidden_output}\" was correctly absent."
            ;;
        (*)
            exit ${result}  # error in the test
            ;;
    esac
fi