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/*
Copyright 2020 Google LLC
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
*/
#include "test-lib.h"
#include "reftable/basics.h"
struct integer_needle_lesseq_args {
int needle;
int *haystack;
};
static int integer_needle_lesseq(size_t i, void *_args)
{
struct integer_needle_lesseq_args *args = _args;
return args->needle <= args->haystack[i];
}
static void *realloc_stub(void *p UNUSED, size_t size UNUSED)
{
return NULL;
}
int cmd_main(int argc UNUSED, const char *argv[] UNUSED)
{
if_test ("binary search with binsearch works") {
int haystack[] = { 2, 4, 6, 8, 10 };
struct {
int needle;
size_t expected_idx;
} testcases[] = {
{-9000, 0},
{-1, 0},
{0, 0},
{2, 0},
{3, 1},
{4, 1},
{7, 3},
{9, 4},
{10, 4},
{11, 5},
{9000, 5},
};
for (size_t i = 0; i < ARRAY_SIZE(testcases); i++) {
struct integer_needle_lesseq_args args = {
.haystack = haystack,
.needle = testcases[i].needle,
};
size_t idx;
idx = binsearch(ARRAY_SIZE(haystack),
&integer_needle_lesseq, &args);
check_int(idx, ==, testcases[i].expected_idx);
}
}
if_test ("names_length returns size of a NULL-terminated string array") {
const char *a[] = { "a", "b", NULL };
check_int(names_length(a), ==, 2);
}
if_test ("names_equal compares NULL-terminated string arrays") {
const char *a[] = { "a", "b", "c", NULL };
const char *b[] = { "a", "b", "d", NULL };
const char *c[] = { "a", "b", NULL };
check(names_equal(a, a));
check(!names_equal(a, b));
check(!names_equal(a, c));
}
if_test ("parse_names works for basic input") {
char in1[] = "line\n";
char in2[] = "a\nb\nc";
char **out = parse_names(in1, strlen(in1));
check(out != NULL);
check_str(out[0], "line");
check(!out[1]);
free_names(out);
out = parse_names(in2, strlen(in2));
check(out != NULL);
check_str(out[0], "a");
check_str(out[1], "b");
check_str(out[2], "c");
check(!out[3]);
free_names(out);
}
if_test ("parse_names drops empty string") {
char in[] = "a\n\nb\n";
char **out = parse_names(in, strlen(in));
check(out != NULL);
check_str(out[0], "a");
/* simply '\n' should be dropped as empty string */
check_str(out[1], "b");
check(!out[2]);
free_names(out);
}
if_test ("common_prefix_size works") {
struct reftable_buf a = REFTABLE_BUF_INIT;
struct reftable_buf b = REFTABLE_BUF_INIT;
struct {
const char *a, *b;
int want;
} cases[] = {
{"abcdef", "abc", 3},
{ "abc", "ab", 2 },
{ "", "abc", 0 },
{ "abc", "abd", 2 },
{ "abc", "pqr", 0 },
};
for (size_t i = 0; i < ARRAY_SIZE(cases); i++) {
check(!reftable_buf_addstr(&a, cases[i].a));
check(!reftable_buf_addstr(&b, cases[i].b));
check_int(common_prefix_size(&a, &b), ==, cases[i].want);
reftable_buf_reset(&a);
reftable_buf_reset(&b);
}
reftable_buf_release(&a);
reftable_buf_release(&b);
}
if_test ("put_be24 and get_be24 work") {
uint32_t in = 0x112233;
uint8_t dest[3];
uint32_t out;
put_be24(dest, in);
out = get_be24(dest);
check_int(in, ==, out);
}
if_test ("put_be16 and get_be16 work") {
uint32_t in = 0xfef1;
uint8_t dest[3];
uint32_t out;
put_be16(dest, in);
out = get_be16(dest);
check_int(in, ==, out);
}
if_test ("REFTABLE_ALLOC_GROW works") {
int *arr = NULL, *old_arr;
size_t alloc = 0, old_alloc;
check(!REFTABLE_ALLOC_GROW(arr, 1, alloc));
check(arr != NULL);
check_uint(alloc, >=, 1);
arr[0] = 42;
old_alloc = alloc;
old_arr = arr;
reftable_set_alloc(NULL, realloc_stub, NULL);
check(REFTABLE_ALLOC_GROW(arr, old_alloc + 1, alloc));
check(arr == old_arr);
check_uint(alloc, ==, old_alloc);
old_alloc = alloc;
reftable_set_alloc(NULL, NULL, NULL);
check(!REFTABLE_ALLOC_GROW(arr, old_alloc + 1, alloc));
check(arr != NULL);
check_uint(alloc, >, old_alloc);
arr[alloc - 1] = 42;
reftable_free(arr);
}
if_test ("REFTABLE_ALLOC_GROW_OR_NULL works") {
int *arr = NULL;
size_t alloc = 0, old_alloc;
REFTABLE_ALLOC_GROW_OR_NULL(arr, 1, alloc);
check(arr != NULL);
check_uint(alloc, >=, 1);
arr[0] = 42;
old_alloc = alloc;
REFTABLE_ALLOC_GROW_OR_NULL(arr, old_alloc + 1, alloc);
check(arr != NULL);
check_uint(alloc, >, old_alloc);
arr[alloc - 1] = 42;
old_alloc = alloc;
reftable_set_alloc(NULL, realloc_stub, NULL);
REFTABLE_ALLOC_GROW_OR_NULL(arr, old_alloc + 1, alloc);
check(arr == NULL);
check_uint(alloc, ==, 0);
reftable_set_alloc(NULL, NULL, NULL);
reftable_free(arr);
}
return test_done();
}
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