git/reftable/record_test.c

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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 "record.h"
#include "system.h"
#include "basics.h"
#include "constants.h"
#include "test_framework.h"
#include "reftable-tests.h"
static void test_copy(struct reftable_record *rec)
{
struct reftable_record copy = { 0 };
uint8_t typ;
typ = reftable_record_type(rec);
copy = reftable_new_record(typ);
reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
/* do it twice to catch memory leaks */
reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
EXPECT(reftable_record_equal(rec, &copy, GIT_SHA1_RAWSZ));
puts("testing print coverage:\n");
reftable_record_print(&copy, GIT_SHA1_RAWSZ);
reftable_record_release(&copy);
}
static void test_varint_roundtrip(void)
{
uint64_t inputs[] = { 0,
1,
27,
127,
128,
257,
4096,
((uint64_t)1 << 63),
((uint64_t)1 << 63) + ((uint64_t)1 << 63) - 1 };
int i = 0;
for (i = 0; i < ARRAY_SIZE(inputs); i++) {
uint8_t dest[10];
struct string_view out = {
.buf = dest,
.len = sizeof(dest),
};
uint64_t in = inputs[i];
int n = put_var_int(&out, in);
uint64_t got = 0;
EXPECT(n > 0);
out.len = n;
n = get_var_int(&got, &out);
EXPECT(n > 0);
EXPECT(got == in);
}
}
static void test_common_prefix(void)
{
struct {
const char *a, *b;
int want;
} cases[] = {
{ "abc", "ab", 2 },
{ "", "abc", 0 },
{ "abc", "abd", 2 },
{ "abc", "pqr", 0 },
};
int i = 0;
for (i = 0; i < ARRAY_SIZE(cases); i++) {
struct strbuf a = STRBUF_INIT;
struct strbuf b = STRBUF_INIT;
strbuf_addstr(&a, cases[i].a);
strbuf_addstr(&b, cases[i].b);
EXPECT(common_prefix_size(&a, &b) == cases[i].want);
strbuf_release(&a);
strbuf_release(&b);
}
}
static void set_hash(uint8_t *h, int j)
{
int i = 0;
for (i = 0; i < hash_size(GIT_SHA1_FORMAT_ID); i++) {
h[i] = (j >> i) & 0xff;
}
}
static void test_reftable_ref_record_roundtrip(void)
{
int i = 0;
for (i = REFTABLE_REF_DELETION; i < REFTABLE_NR_REF_VALUETYPES; i++) {
struct reftable_record in = {
.type = BLOCK_TYPE_REF,
};
struct reftable_record out = { .type = BLOCK_TYPE_REF };
struct strbuf key = STRBUF_INIT;
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
int n, m;
in.u.ref.value_type = i;
switch (i) {
case REFTABLE_REF_DELETION:
break;
case REFTABLE_REF_VAL1:
in.u.ref.value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
set_hash(in.u.ref.value.val1, 1);
break;
case REFTABLE_REF_VAL2:
in.u.ref.value.val2.value =
reftable_malloc(GIT_SHA1_RAWSZ);
set_hash(in.u.ref.value.val2.value, 1);
in.u.ref.value.val2.target_value =
reftable_malloc(GIT_SHA1_RAWSZ);
set_hash(in.u.ref.value.val2.target_value, 2);
break;
case REFTABLE_REF_SYMREF:
in.u.ref.value.symref = xstrdup("target");
break;
}
in.u.ref.refname = xstrdup("refs/heads/master");
test_copy(&in);
EXPECT(reftable_record_val_type(&in) == i);
reftable_record_key(&in, &key);
n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
/* decode into a non-zero reftable_record to test for leaks. */
m = reftable_record_decode(&out, key, i, dest, GIT_SHA1_RAWSZ);
EXPECT(n == m);
EXPECT(reftable_ref_record_equal(&in.u.ref, &out.u.ref,
GIT_SHA1_RAWSZ));
reftable_record_release(&in);
strbuf_release(&key);
reftable_record_release(&out);
}
}
static void test_reftable_log_record_equal(void)
{
struct reftable_log_record in[2] = {
{
.refname = xstrdup("refs/heads/master"),
.update_index = 42,
},
{
.refname = xstrdup("refs/heads/master"),
.update_index = 22,
}
};
EXPECT(!reftable_log_record_equal(&in[0], &in[1], GIT_SHA1_RAWSZ));
in[1].update_index = in[0].update_index;
EXPECT(reftable_log_record_equal(&in[0], &in[1], GIT_SHA1_RAWSZ));
reftable_log_record_release(&in[0]);
reftable_log_record_release(&in[1]);
}
static void test_reftable_log_record_roundtrip(void)
{
int i;
struct reftable_log_record in[] = {
{
.refname = xstrdup("refs/heads/master"),
.update_index = 42,
.value_type = REFTABLE_LOG_UPDATE,
.value = {
.update = {
.old_hash = reftable_malloc(GIT_SHA1_RAWSZ),
.new_hash = reftable_malloc(GIT_SHA1_RAWSZ),
.name = xstrdup("han-wen"),
.email = xstrdup("hanwen@google.com"),
.message = xstrdup("test"),
.time = 1577123507,
.tz_offset = 100,
},
}
},
{
.refname = xstrdup("refs/heads/master"),
.update_index = 22,
.value_type = REFTABLE_LOG_DELETION,
},
{
.refname = xstrdup("branch"),
.update_index = 33,
.value_type = REFTABLE_LOG_UPDATE,
.value = {
.update = {
.old_hash = reftable_malloc(GIT_SHA1_RAWSZ),
.new_hash = reftable_malloc(GIT_SHA1_RAWSZ),
/* rest of fields left empty. */
},
},
}
};
set_test_hash(in[0].value.update.new_hash, 1);
set_test_hash(in[0].value.update.old_hash, 2);
set_test_hash(in[2].value.update.new_hash, 3);
set_test_hash(in[2].value.update.old_hash, 4);
for (i = 0; i < ARRAY_SIZE(in); i++) {
struct reftable_record rec = { .type = BLOCK_TYPE_LOG };
struct strbuf key = STRBUF_INIT;
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
/* populate out, to check for leaks. */
struct reftable_record out = {
.type = BLOCK_TYPE_LOG,
.u.log = {
.refname = xstrdup("old name"),
.value_type = REFTABLE_LOG_UPDATE,
.value = {
.update = {
.new_hash = reftable_calloc(GIT_SHA1_RAWSZ),
.old_hash = reftable_calloc(GIT_SHA1_RAWSZ),
.name = xstrdup("old name"),
.email = xstrdup("old@email"),
.message = xstrdup("old message"),
},
},
},
};
int n, m, valtype;
rec.u.log = in[i];
test_copy(&rec);
reftable_record_key(&rec, &key);
n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ);
EXPECT(n >= 0);
valtype = reftable_record_val_type(&rec);
m = reftable_record_decode(&out, key, valtype, dest,
GIT_SHA1_RAWSZ);
EXPECT(n == m);
EXPECT(reftable_log_record_equal(&in[i], &out.u.log,
GIT_SHA1_RAWSZ));
reftable_log_record_release(&in[i]);
strbuf_release(&key);
reftable_record_release(&out);
}
}
static void test_u24_roundtrip(void)
{
uint32_t in = 0x112233;
uint8_t dest[3];
uint32_t out;
put_be24(dest, in);
out = get_be24(dest);
EXPECT(in == out);
}
static void test_key_roundtrip(void)
{
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
struct strbuf last_key = STRBUF_INIT;
struct strbuf key = STRBUF_INIT;
struct strbuf roundtrip = STRBUF_INIT;
int restart;
uint8_t extra;
int n, m;
uint8_t rt_extra;
strbuf_addstr(&last_key, "refs/heads/master");
strbuf_addstr(&key, "refs/tags/bla");
extra = 6;
n = reftable_encode_key(&restart, dest, last_key, key, extra);
EXPECT(!restart);
EXPECT(n > 0);
m = reftable_decode_key(&roundtrip, &rt_extra, last_key, dest);
EXPECT(n == m);
EXPECT(0 == strbuf_cmp(&key, &roundtrip));
EXPECT(rt_extra == extra);
strbuf_release(&last_key);
strbuf_release(&key);
strbuf_release(&roundtrip);
}
static void test_reftable_obj_record_roundtrip(void)
{
uint8_t testHash1[GIT_SHA1_RAWSZ] = { 1, 2, 3, 4, 0 };
uint64_t till9[] = { 1, 2, 3, 4, 500, 600, 700, 800, 9000 };
struct reftable_obj_record recs[3] = { {
.hash_prefix = testHash1,
.hash_prefix_len = 5,
.offsets = till9,
.offset_len = 3,
},
{
.hash_prefix = testHash1,
.hash_prefix_len = 5,
.offsets = till9,
.offset_len = 9,
},
{
.hash_prefix = testHash1,
.hash_prefix_len = 5,
} };
int i = 0;
for (i = 0; i < ARRAY_SIZE(recs); i++) {
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
struct reftable_record in = {
.type = BLOCK_TYPE_OBJ,
.u = {
.obj = recs[i],
},
};
struct strbuf key = STRBUF_INIT;
struct reftable_record out = { .type = BLOCK_TYPE_OBJ };
int n, m;
uint8_t extra;
test_copy(&in);
reftable_record_key(&in, &key);
n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
extra = reftable_record_val_type(&in);
m = reftable_record_decode(&out, key, extra, dest,
GIT_SHA1_RAWSZ);
EXPECT(n == m);
EXPECT(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
strbuf_release(&key);
reftable_record_release(&out);
}
}
static void test_reftable_index_record_roundtrip(void)
{
struct reftable_record in = {
.type = BLOCK_TYPE_INDEX,
.u.idx = {
.offset = 42,
.last_key = STRBUF_INIT,
},
};
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
struct strbuf key = STRBUF_INIT;
struct reftable_record out = {
.type = BLOCK_TYPE_INDEX,
.u.idx = { .last_key = STRBUF_INIT },
};
int n, m;
uint8_t extra;
strbuf_addstr(&in.u.idx.last_key, "refs/heads/master");
reftable_record_key(&in, &key);
test_copy(&in);
EXPECT(0 == strbuf_cmp(&key, &in.u.idx.last_key));
n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
extra = reftable_record_val_type(&in);
m = reftable_record_decode(&out, key, extra, dest, GIT_SHA1_RAWSZ);
EXPECT(m == n);
EXPECT(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
reftable_record_release(&out);
strbuf_release(&key);
strbuf_release(&in.u.idx.last_key);
}
int record_test_main(int argc, const char *argv[])
{
RUN_TEST(test_reftable_log_record_equal);
RUN_TEST(test_reftable_log_record_roundtrip);
RUN_TEST(test_reftable_ref_record_roundtrip);
RUN_TEST(test_varint_roundtrip);
RUN_TEST(test_key_roundtrip);
RUN_TEST(test_common_prefix);
RUN_TEST(test_reftable_obj_record_roundtrip);
RUN_TEST(test_reftable_index_record_roundtrip);
RUN_TEST(test_u24_roundtrip);
return 0;
}