libakerror/tests/err_break_variants.c

#include "akerror.h"
#include "err_capture.h"

/*
 * Cover the conditional break/return failure macros:
 *   FAIL_ZERO_BREAK / FAIL_NONZERO_BREAK / FAIL_BREAK   (inside ATTEMPT)
 *   FAIL_ZERO_RETURN / FAIL_NONZERO_RETURN / FAIL_RETURN (direct return)
 * Each is checked in both its failing and its non-failing (pass-through) state.
 */

akerr_ErrorContext *zero_break(int x)
{
    PREPARE_ERROR(e);
    ATTEMPT {
	FAIL_ZERO_BREAK(e, x, AKERR_VALUE, "x was zero");
    } CLEANUP {
    } PROCESS(e) {
    } FINISH(e, true);
    SUCCEED_RETURN(e);
}

akerr_ErrorContext *nonzero_break(int x)
{
    PREPARE_ERROR(e);
    ATTEMPT {
	FAIL_NONZERO_BREAK(e, x, AKERR_INDEX, "x was nonzero");
    } CLEANUP {
    } PROCESS(e) {
    } FINISH(e, true);
    SUCCEED_RETURN(e);
}

akerr_ErrorContext *always_break(void)
{
    PREPARE_ERROR(e);
    ATTEMPT {
	FAIL_BREAK(e, AKERR_IO, "always");
    } CLEANUP {
    } PROCESS(e) {
    } FINISH(e, true);
    SUCCEED_RETURN(e);
}

akerr_ErrorContext *zero_return(int x)
{
    PREPARE_ERROR(e);
    FAIL_ZERO_RETURN(e, x, AKERR_KEY, "x was zero");
    SUCCEED_RETURN(e);
}

akerr_ErrorContext *nonzero_return(int x)
{
    PREPARE_ERROR(e);
    FAIL_NONZERO_RETURN(e, x, AKERR_TYPE, "x was nonzero");
    SUCCEED_RETURN(e);
}

int main(void)
{
    akerr_capture_install();
    akerr_init();

    akerr_ErrorContext *r;

    r = zero_break(0);
    AKERR_CHECK_STATUS(r, AKERR_VALUE);
    r = akerr_release_error(r);
    AKERR_CHECK(zero_break(7) == NULL);

    r = nonzero_break(7);
    AKERR_CHECK_STATUS(r, AKERR_INDEX);
    r = akerr_release_error(r);
    AKERR_CHECK(nonzero_break(0) == NULL);

    r = always_break();
    AKERR_CHECK_STATUS(r, AKERR_IO);
    r = akerr_release_error(r);

    r = zero_return(0);
    AKERR_CHECK_STATUS(r, AKERR_KEY);
    r = akerr_release_error(r);
    AKERR_CHECK(zero_return(7) == NULL);

    r = nonzero_return(7);
    AKERR_CHECK_STATUS(r, AKERR_TYPE);
    r = akerr_release_error(r);
    AKERR_CHECK(nonzero_return(0) == NULL);

    AKERR_CHECK(akerr_slots_in_use() == 0);
    fprintf(stderr, "err_break_variants ok\n");
    return 0;
}