michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsCRT.h"
michael@0: #include "nsString.h"
michael@0: #include "plstr.h"
michael@0: #include <stdlib.h>
michael@0: 
michael@0: namespace TestCRT {
michael@0: 
michael@0: // The return from strcmp etc is only defined to be postive, zero or
michael@0: // negative. The magnitude of a non-zero return is irrelevant.
michael@0: int sign(int val) {
michael@0:     if (val == 0)
michael@0: 	return 0;
michael@0:     else {
michael@0: 	if (val > 0)
michael@0: 	    return 1;
michael@0: 	else
michael@0: 	    return -1;
michael@0:     }
michael@0: }
michael@0: 
michael@0: 
michael@0: // Verify that nsCRT versions of string comparison routines get the
michael@0: // same answers as the native non-unicode versions. We only pass in
michael@0: // iso-latin-1 strings, so the comparison must be valid.
michael@0: static void Check(const char* s1, const char* s2, int n)
michael@0: {
michael@0: #ifdef DEBUG
michael@0:   int clib =
michael@0: #endif
michael@0:     PL_strcmp(s1, s2);
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   int clib_n =
michael@0: #endif
michael@0:     PL_strncmp(s1, s2, n);
michael@0: 
michael@0:   nsAutoString t1,t2; 
michael@0:   t1.AssignWithConversion(s1);
michael@0:   t2.AssignWithConversion(s2);
michael@0:   const char16_t* us1 = t1.get();
michael@0:   const char16_t* us2 = t2.get();
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   int u2 =
michael@0: #endif
michael@0:     nsCRT::strcmp(us1, us2);
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   int u2_n =
michael@0: #endif
michael@0:     nsCRT::strncmp(us1, us2, n);
michael@0: 
michael@0:   NS_ASSERTION(sign(clib) == sign(u2), "strcmp");
michael@0:   NS_ASSERTION(sign(clib_n) == sign(u2_n), "strncmp");
michael@0: }
michael@0: 
michael@0: struct Test {
michael@0:   const char* s1;
michael@0:   const char* s2;
michael@0:   int n;
michael@0: };
michael@0: 
michael@0: static Test tests[] = {
michael@0:   { "foo", "foo", 3 },
michael@0:   { "foo", "fo", 3 },
michael@0: 
michael@0:   { "foo", "bar", 3 },
michael@0:   { "foo", "ba", 3 },
michael@0: 
michael@0:   { "foo", "zap", 3 },
michael@0:   { "foo", "za", 3 },
michael@0: 
michael@0:   { "bar", "foo", 3 },
michael@0:   { "bar", "fo", 3 },
michael@0: 
michael@0:   { "bar", "foo", 3 },
michael@0:   { "bar", "fo", 3 },
michael@0: };
michael@0: #define NUM_TESTS int((sizeof(tests) / sizeof(tests[0])))
michael@0: 
michael@0: }
michael@0: 
michael@0: using namespace TestCRT;
michael@0: 
michael@0: int main()
michael@0: {
michael@0:   Test* tp = tests;
michael@0:   for (int i = 0; i < NUM_TESTS; i++, tp++) {
michael@0:     Check(tp->s1, tp->s2, tp->n);
michael@0:   }
michael@0: 
michael@0:   return 0;
michael@0: }