liblwgeom/cunit/cu_tester.h

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/**********************************************************************
 *
 * PostGIS - Spatial Types for PostgreSQL
 * http://postgis.net
 *
 * Copyright (C) 2009 Paul Ramsey <pramsey@cleverelephant.ca>
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU General Public Licence. See the COPYING file.
 *
 **********************************************************************/
 
#ifndef _CU_TESTER_H
#define _CU_TESTER_H 1
 
#include "liblwgeom.h"
#include <stdio.h>
 
#define MAX_CUNIT_ERROR_LENGTH 512
 
#define PG_ADD_TEST(suite, testfunc) CU_add_test(suite, #testfunc, testfunc)
 
/* Contains the most recent error message generated by lwerror. */
extern char cu_error_msg[];
 
/* Resets cu_error_msg back to blank. */
void cu_error_msg_reset(void);
 
/* Our internal callback to register Suites with the main tester */
typedef void (*PG_SuiteSetup)(void);
 
#define ASSERT_DOUBLE_EQUAL(o,e) do { \
  if ( o != e ) \
    fprintf(stderr, "[%s:%d]\n Expected: %g\n Obtained: %g\n", __FILE__, __LINE__, (double)(e), (o)); \
  CU_ASSERT_EQUAL(o,(double)e); \
} while (0);
 
#define ASSERT_DOUBLE_EQUAL_TOLERANCE(o,e,t) do { \
  if ( fabs(o-e) > t ) \
    fprintf(stderr, "[%s:%d]\n Expected: %g\n Obtained: %g\n Difference: %.15g\n Tolerated: %.15g\n", __FILE__, __LINE__, (double)(e), (o), fabs((o)-(e)), (t)); \
  CU_ASSERT_DOUBLE_EQUAL(o,e,t); \
} while (0);
 
#define ASSERT_INT_EQUAL(o,e) do { \
  if ( o != e ) \
    fprintf(stderr, "[%s:%d]\n Expected: %d\n Obtained: %d\n", __FILE__, __LINE__, (e), (o)); \
  CU_ASSERT_EQUAL(o,e); \
} while (0);
 
#define ASSERT_NORMALIZED_GEOM_SAME(gobt, gexp) \
        do \
        { \
                char *obt, *exp; \
                LWGEOM *ngobt, *ngexp; \
                ngobt = lwgeom_normalize(gobt); \
                ngexp = lwgeom_normalize(gexp); \
                if (!lwgeom_same((ngobt), (ngexp))) \
                { \
                        obt = lwgeom_to_wkt((ngobt), WKT_ISO, 8, NULL); \
                        exp = lwgeom_to_wkt((ngexp), WKT_ISO, 8, NULL); \
                        fprintf(stderr, "[%s:%d]\n Expected: %s\n Obtained: %s\n", __FILE__, __LINE__, exp, obt); \
                        free(obt); \
                        free(exp); \
                        lwgeom_free(ngobt); \
                        lwgeom_free(ngexp); \
                        CU_ASSERT(0); \
                } \
                else \
                { \
                        lwgeom_free(ngobt); \
                        lwgeom_free(ngexp); \
                        CU_ASSERT(1); \
                } \
        } while (0)
 
static inline void
assert_string_equal_impl(const char *obtained, const char *expected, const char *file, int line)
{
        CU_BOOL error = (!obtained && expected) || (obtained && !expected) || (strcmp(obtained, expected) != 0);
        char *msg = NULL;
        if (error)
        {
                msg = lwalloc(60 + (obtained ? strlen(obtained) : 4) + (expected ? strlen(expected) : 4));
                sprintf(msg,
                        "ASSERT_STRING_EQUAL\n\t* Expected: %s\n\t* Obtained: %s",
                        expected ? expected : "NULL",
                        obtained ? obtained : "NULL");
        }
        CU_assertImplementation(!error, line, msg, file, NULL, CU_FALSE);
        if (msg)
                lwfree(msg);
}
 
#define ASSERT_STRING_EQUAL(o, e) assert_string_equal_impl(o, e, __FILE__, __LINE__)
 
#define ASSERT_VARLENA_EQUAL(v, s) \
        do \
        { \
                if (strncmp(v->data, s, LWSIZE_GET(v->size) - LWVARHDRSZ) != 0) \
                { \
                        fprintf( \
                            stderr, "[%s:%d]\n Expected: %s\n Obtained: %s\n", __FILE__, __LINE__, (s), (v->data)); \
                        CU_FAIL(); \
                } \
                else \
                        CU_PASS(); \
        } while (0);
 
#define ASSERT_LWGEOM_EQUAL(o, e) do { \
        if ( !lwgeom_same(o, e) ) { \
                char* wkt_o = lwgeom_to_ewkt(o); \
                char* wkt_e = lwgeom_to_ewkt(e); \
                fprintf(stderr, "[%s:%d]\n Expected: %s\n Obtained: %s\n", __FILE__, __LINE__, (wkt_o), (wkt_e)); \
                lwfree(wkt_o); \
                lwfree(wkt_e); \
        } \
        CU_ASSERT_TRUE(lwgeom_same(o, e)); \
} while(0);
 
#define ASSERT_INTARRAY_EQUAL(o, e, n) do { \
        size_t i = 0; \
        for (i = 0; i < n; i++) { \
                if (o[i] != e[i]) { \
                        fprintf(stderr, "[%s:%d]", __FILE__, __LINE__); \
                        fprintf(stderr, "\nExpected: ["); \
                        for (i = 0; i < n; i++) \
                                fprintf(stderr, " %d", e[i]); \
                        fprintf(stderr, " ]\nObtained: ["); \
                        for (i = 0; i < n; i++) \
                                fprintf(stderr, " %d", o[i]); \
                        fprintf(stderr, " ]\n"); \
                        CU_FAIL(); \
                        break; \
                } \
        } \
        CU_PASS(); \
} while(0);
 
#define ASSERT_POINT2D_EQUAL(o, e, eps) do { \
        CU_ASSERT_DOUBLE_EQUAL(o.x, e.x, eps); \
        CU_ASSERT_DOUBLE_EQUAL(o.y, e.y, eps); \
} while(0);
 
#define ASSERT_POINT4D_EQUAL(o, e, eps) do { \
        CU_ASSERT_DOUBLE_EQUAL(o.x, e.x, eps); \
        CU_ASSERT_DOUBLE_EQUAL(o.y, e.y, eps); \
        CU_ASSERT_DOUBLE_EQUAL(o.z, e.z, eps); \
        CU_ASSERT_DOUBLE_EQUAL(o.m, e.m, eps); \
} while(0);
 
/* Utility functions */
void do_fn_test(LWGEOM* (*transfn)(LWGEOM*), char *input_wkt, char *expected_wkt);
 
#endif /* _CU_TESTER_H */