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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsCRT.h"
#include "nsString.h"
#include "plstr.h"
#include <stdlib.h>
#include "gtest/gtest.h"
namespace TestCRT {
// The return from strcmp etc is only defined to be postive, zero or
// negative. The magnitude of a non-zero return is irrelevant.
static int sign(int val) {
if (val == 0) {
return 0;
} else {
if (val > 0) {
return 1;
} else {
return -1;
}
}
}
// Verify that nsCRT versions of string comparison routines get the
// same answers as the native non-unicode versions. We only pass in
// iso-latin-1 strings, so the comparison must be valid.
static void Check(const char* s1, const char* s2, size_t n) {
bool longerThanN = strlen(s1) > n || strlen(s2) > n;
int clib = PL_strcmp(s1, s2);
int clib_n = PL_strncmp(s1, s2, n);
if (!longerThanN) {
EXPECT_EQ(sign(clib), sign(clib_n));
}
nsAutoString t1, t2;
CopyASCIItoUTF16(mozilla::MakeStringSpan(s1), t1);
CopyASCIItoUTF16(mozilla::MakeStringSpan(s2), t2);
const char16_t* us1 = t1.get();
const char16_t* us2 = t2.get();
int u2, u2_n;
u2 = nsCRT::strcmp(us1, us2);
EXPECT_EQ(sign(clib), sign(u2));
u2 = NS_strcmp(us1, us2);
u2_n = NS_strncmp(us1, us2, n);
EXPECT_EQ(sign(clib), sign(u2));
EXPECT_EQ(sign(clib_n), sign(u2_n));
}
struct Test {
const char* s1;
const char* s2;
size_t n;
};
static Test tests[] = {
{"foo", "foo", 3}, {"foo", "fo", 3},
{"foo", "bar", 3}, {"foo", "ba", 3},
{"foo", "zap", 3}, {"foo", "za", 3},
{"bar", "foo", 3}, {"bar", "fo", 3},
{"bar", "foo", 3}, {"bar", "fo", 3},
{"foo", "foobar", 3}, {"foobar", "foo", 3},
{"foobar", "foozap", 3}, {"foozap", "foobar", 3},
};
#define NUM_TESTS int((sizeof(tests) / sizeof(tests[0])))
TEST(CRT, main)
{
TestCRT::Test* tp = tests;
for (int i = 0; i < NUM_TESTS; i++, tp++) {
Check(tp->s1, tp->s2, tp->n);
}
}
} // namespace TestCRT
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