mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-03 20:02:04 +00:00
d730d3f4f0
After doing further profiling, I found that a lot of time was being spent attempting to insert hashes into the file hash signature when using the rolling hash because the rolling hash approach generates a hash per byte of the file instead of one per run/line of data. To optimize this, I decided to convert back to a run-based file signature algorithm which would be more like core Git. After changing this, a number of the existing tests started to fail. In some cases, this appears to have been because the test was coded to be too specific to the particular results of the file similarity metric and in some cases there appear to have been bugs in the core rename detection code where only by the coincidence of the file similarity scoring were the expected results being generated. This renames all the variables in the core rename detection code to be more consistent and hopefully easier to follow which made it a bit easier to reason about the behavior of that code and fix the problems that I was seeing. I think it's in better shape now. There are a couple of tests now that attempt to stress test the rename detection code and they are quite slow. Most of the time is spent setting up the test data on disk and in the index. When we roll out performance improvements for index insertion, it should also speed up these tests I hope.
997 lines
28 KiB
C
997 lines
28 KiB
C
#include "clar_libgit2.h"
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#include "buffer.h"
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#include "buf_text.h"
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#include "hashsig.h"
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#include "fileops.h"
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#define TESTSTR "Have you seen that? Have you seeeen that??"
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const char *test_string = TESTSTR;
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const char *test_string_x2 = TESTSTR TESTSTR;
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#define TESTSTR_4096 REP1024("1234")
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#define TESTSTR_8192 REP1024("12341234")
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const char *test_4096 = TESTSTR_4096;
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const char *test_8192 = TESTSTR_8192;
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/* test basic data concatenation */
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void test_core_buffer__0(void)
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{
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git_buf buf = GIT_BUF_INIT;
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cl_assert(buf.size == 0);
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git_buf_puts(&buf, test_string);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_string, git_buf_cstr(&buf));
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git_buf_puts(&buf, test_string);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_string_x2, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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/* test git_buf_printf */
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void test_core_buffer__1(void)
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{
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git_buf buf = GIT_BUF_INIT;
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git_buf_printf(&buf, "%s %s %d ", "shoop", "da", 23);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("shoop da 23 ", git_buf_cstr(&buf));
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git_buf_printf(&buf, "%s %d", "woop", 42);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("shoop da 23 woop 42", git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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/* more thorough test of concatenation options */
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void test_core_buffer__2(void)
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{
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git_buf buf = GIT_BUF_INIT;
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int i;
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char data[128];
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cl_assert(buf.size == 0);
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/* this must be safe to do */
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git_buf_free(&buf);
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cl_assert(buf.size == 0);
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cl_assert(buf.asize == 0);
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/* empty buffer should be empty string */
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cl_assert_equal_s("", git_buf_cstr(&buf));
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cl_assert(buf.size == 0);
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/* cl_assert(buf.asize == 0); -- should not assume what git_buf does */
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/* free should set us back to the beginning */
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git_buf_free(&buf);
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cl_assert(buf.size == 0);
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cl_assert(buf.asize == 0);
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/* add letter */
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git_buf_putc(&buf, '+');
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("+", git_buf_cstr(&buf));
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/* add letter again */
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git_buf_putc(&buf, '+');
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("++", git_buf_cstr(&buf));
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/* let's try that a few times */
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for (i = 0; i < 16; ++i) {
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git_buf_putc(&buf, '+');
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cl_assert(git_buf_oom(&buf) == 0);
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}
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cl_assert_equal_s("++++++++++++++++++", git_buf_cstr(&buf));
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git_buf_free(&buf);
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/* add data */
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git_buf_put(&buf, "xo", 2);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("xo", git_buf_cstr(&buf));
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/* add letter again */
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git_buf_put(&buf, "xo", 2);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s("xoxo", git_buf_cstr(&buf));
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/* let's try that a few times */
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for (i = 0; i < 16; ++i) {
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git_buf_put(&buf, "xo", 2);
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cl_assert(git_buf_oom(&buf) == 0);
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}
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cl_assert_equal_s("xoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxo",
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git_buf_cstr(&buf));
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git_buf_free(&buf);
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/* set to string */
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git_buf_sets(&buf, test_string);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_string, git_buf_cstr(&buf));
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/* append string */
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git_buf_puts(&buf, test_string);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_string_x2, git_buf_cstr(&buf));
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/* set to string again (should overwrite - not append) */
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git_buf_sets(&buf, test_string);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_string, git_buf_cstr(&buf));
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/* test clear */
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git_buf_clear(&buf);
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cl_assert_equal_s("", git_buf_cstr(&buf));
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git_buf_free(&buf);
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/* test extracting data into buffer */
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git_buf_puts(&buf, REP4("0123456789"));
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cl_assert(git_buf_oom(&buf) == 0);
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git_buf_copy_cstr(data, sizeof(data), &buf);
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cl_assert_equal_s(REP4("0123456789"), data);
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git_buf_copy_cstr(data, 11, &buf);
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cl_assert_equal_s("0123456789", data);
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git_buf_copy_cstr(data, 3, &buf);
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cl_assert_equal_s("01", data);
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git_buf_copy_cstr(data, 1, &buf);
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cl_assert_equal_s("", data);
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git_buf_copy_cstr(data, sizeof(data), &buf);
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cl_assert_equal_s(REP4("0123456789"), data);
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git_buf_sets(&buf, REP256("x"));
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git_buf_copy_cstr(data, sizeof(data), &buf);
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/* since sizeof(data) == 128, only 127 bytes should be copied */
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cl_assert_equal_s(REP4(REP16("x")) REP16("x") REP16("x")
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REP16("x") "xxxxxxxxxxxxxxx", data);
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git_buf_free(&buf);
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git_buf_copy_cstr(data, sizeof(data), &buf);
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cl_assert_equal_s("", data);
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}
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/* let's do some tests with larger buffers to push our limits */
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void test_core_buffer__3(void)
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{
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git_buf buf = GIT_BUF_INIT;
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/* set to string */
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git_buf_set(&buf, test_4096, 4096);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_4096, git_buf_cstr(&buf));
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/* append string */
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git_buf_puts(&buf, test_4096);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_8192, git_buf_cstr(&buf));
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/* set to string again (should overwrite - not append) */
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git_buf_set(&buf, test_4096, 4096);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(test_4096, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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/* let's try some producer/consumer tests */
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void test_core_buffer__4(void)
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{
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git_buf buf = GIT_BUF_INIT;
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int i;
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for (i = 0; i < 10; ++i) {
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git_buf_puts(&buf, "1234"); /* add 4 */
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cl_assert(git_buf_oom(&buf) == 0);
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git_buf_consume(&buf, buf.ptr + 2); /* eat the first two */
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cl_assert(strlen(git_buf_cstr(&buf)) == (size_t)((i + 1) * 2));
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}
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/* we have appended 1234 10x and removed the first 20 letters */
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cl_assert_equal_s("12341234123412341234", git_buf_cstr(&buf));
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git_buf_consume(&buf, NULL);
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cl_assert_equal_s("12341234123412341234", git_buf_cstr(&buf));
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git_buf_consume(&buf, "invalid pointer");
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cl_assert_equal_s("12341234123412341234", git_buf_cstr(&buf));
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git_buf_consume(&buf, buf.ptr);
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cl_assert_equal_s("12341234123412341234", git_buf_cstr(&buf));
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git_buf_consume(&buf, buf.ptr + 1);
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cl_assert_equal_s("2341234123412341234", git_buf_cstr(&buf));
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git_buf_consume(&buf, buf.ptr + buf.size);
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cl_assert_equal_s("", git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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static void
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check_buf_append(
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const char* data_a,
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const char* data_b,
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const char* expected_data,
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size_t expected_size,
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size_t expected_asize)
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{
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git_buf tgt = GIT_BUF_INIT;
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git_buf_sets(&tgt, data_a);
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cl_assert(git_buf_oom(&tgt) == 0);
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git_buf_puts(&tgt, data_b);
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cl_assert(git_buf_oom(&tgt) == 0);
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cl_assert_equal_s(expected_data, git_buf_cstr(&tgt));
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cl_assert(tgt.size == expected_size);
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if (expected_asize > 0)
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cl_assert(tgt.asize == expected_asize);
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git_buf_free(&tgt);
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}
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static void
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check_buf_append_abc(
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const char* buf_a,
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const char* buf_b,
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const char* buf_c,
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const char* expected_ab,
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const char* expected_abc,
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const char* expected_abca,
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const char* expected_abcab,
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const char* expected_abcabc)
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{
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git_buf buf = GIT_BUF_INIT;
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git_buf_sets(&buf, buf_a);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(buf_a, git_buf_cstr(&buf));
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git_buf_puts(&buf, buf_b);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected_ab, git_buf_cstr(&buf));
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git_buf_puts(&buf, buf_c);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected_abc, git_buf_cstr(&buf));
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git_buf_puts(&buf, buf_a);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected_abca, git_buf_cstr(&buf));
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git_buf_puts(&buf, buf_b);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected_abcab, git_buf_cstr(&buf));
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git_buf_puts(&buf, buf_c);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected_abcabc, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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/* more variations on append tests */
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void test_core_buffer__5(void)
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{
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check_buf_append("", "", "", 0, 8);
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check_buf_append("a", "", "a", 1, 8);
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check_buf_append("", "a", "a", 1, 8);
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check_buf_append("", "a", "a", 1, 8);
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check_buf_append("a", "", "a", 1, 8);
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check_buf_append("a", "b", "ab", 2, 8);
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check_buf_append("", "abcdefgh", "abcdefgh", 8, 16);
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check_buf_append("abcdefgh", "", "abcdefgh", 8, 16);
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/* buffer with starting asize will grow to:
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* 1 -> 2, 2 -> 3, 3 -> 5, 4 -> 6, 5 -> 8, 6 -> 9,
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* 7 -> 11, 8 -> 12, 9 -> 14, 10 -> 15, 11 -> 17, 12 -> 18,
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* 13 -> 20, 14 -> 21, 15 -> 23, 16 -> 24, 17 -> 26, 18 -> 27,
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* 19 -> 29, 20 -> 30, 21 -> 32, 22 -> 33, 23 -> 35, 24 -> 36,
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* ...
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* follow sequence until value > target size,
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* then round up to nearest multiple of 8.
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*/
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check_buf_append("abcdefgh", "/", "abcdefgh/", 9, 16);
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check_buf_append("abcdefgh", "ijklmno", "abcdefghijklmno", 15, 16);
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check_buf_append("abcdefgh", "ijklmnop", "abcdefghijklmnop", 16, 24);
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check_buf_append("0123456789", "0123456789",
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"01234567890123456789", 20, 24);
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check_buf_append(REP16("x"), REP16("o"),
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REP16("x") REP16("o"), 32, 40);
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check_buf_append(test_4096, "", test_4096, 4096, 4104);
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check_buf_append(test_4096, test_4096, test_8192, 8192, 9240);
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/* check sequences of appends */
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check_buf_append_abc("a", "b", "c",
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"ab", "abc", "abca", "abcab", "abcabc");
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check_buf_append_abc("a1", "b2", "c3",
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"a1b2", "a1b2c3", "a1b2c3a1",
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"a1b2c3a1b2", "a1b2c3a1b2c3");
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check_buf_append_abc("a1/", "b2/", "c3/",
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"a1/b2/", "a1/b2/c3/", "a1/b2/c3/a1/",
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"a1/b2/c3/a1/b2/", "a1/b2/c3/a1/b2/c3/");
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}
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/* test swap */
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void test_core_buffer__6(void)
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{
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git_buf a = GIT_BUF_INIT;
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git_buf b = GIT_BUF_INIT;
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git_buf_sets(&a, "foo");
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cl_assert(git_buf_oom(&a) == 0);
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git_buf_sets(&b, "bar");
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cl_assert(git_buf_oom(&b) == 0);
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cl_assert_equal_s("foo", git_buf_cstr(&a));
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cl_assert_equal_s("bar", git_buf_cstr(&b));
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git_buf_swap(&a, &b);
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cl_assert_equal_s("bar", git_buf_cstr(&a));
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cl_assert_equal_s("foo", git_buf_cstr(&b));
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git_buf_free(&a);
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git_buf_free(&b);
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}
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/* test detach/attach data */
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void test_core_buffer__7(void)
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{
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const char *fun = "This is fun";
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git_buf a = GIT_BUF_INIT;
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char *b = NULL;
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git_buf_sets(&a, "foo");
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cl_assert(git_buf_oom(&a) == 0);
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cl_assert_equal_s("foo", git_buf_cstr(&a));
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b = git_buf_detach(&a);
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cl_assert_equal_s("foo", b);
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cl_assert_equal_s("", a.ptr);
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git__free(b);
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b = git_buf_detach(&a);
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cl_assert_equal_s(NULL, b);
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cl_assert_equal_s("", a.ptr);
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git_buf_free(&a);
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b = git__strdup(fun);
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git_buf_attach(&a, b, 0);
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cl_assert_equal_s(fun, a.ptr);
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cl_assert(a.size == strlen(fun));
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cl_assert(a.asize == strlen(fun) + 1);
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git_buf_free(&a);
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b = git__strdup(fun);
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git_buf_attach(&a, b, strlen(fun) + 1);
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cl_assert_equal_s(fun, a.ptr);
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cl_assert(a.size == strlen(fun));
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cl_assert(a.asize == strlen(fun) + 1);
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git_buf_free(&a);
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}
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static void
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check_joinbuf_2(
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const char *a,
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const char *b,
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const char *expected)
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{
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char sep = '/';
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git_buf buf = GIT_BUF_INIT;
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git_buf_join(&buf, sep, a, b);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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static void
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check_joinbuf_n_2(
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const char *a,
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const char *b,
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const char *expected)
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{
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char sep = '/';
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git_buf buf = GIT_BUF_INIT;
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git_buf_sets(&buf, a);
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cl_assert(git_buf_oom(&buf) == 0);
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git_buf_join_n(&buf, sep, 1, b);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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static void
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check_joinbuf_n_4(
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const char *a,
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const char *b,
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const char *c,
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const char *d,
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const char *expected)
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{
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char sep = ';';
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git_buf buf = GIT_BUF_INIT;
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git_buf_join_n(&buf, sep, 4, a, b, c, d);
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cl_assert(git_buf_oom(&buf) == 0);
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cl_assert_equal_s(expected, git_buf_cstr(&buf));
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git_buf_free(&buf);
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}
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/* test join */
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void test_core_buffer__8(void)
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{
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git_buf a = GIT_BUF_INIT;
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git_buf_join_n(&a, '/', 1, "foo");
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cl_assert(git_buf_oom(&a) == 0);
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cl_assert_equal_s("foo", git_buf_cstr(&a));
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git_buf_join_n(&a, '/', 1, "bar");
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cl_assert(git_buf_oom(&a) == 0);
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cl_assert_equal_s("foo/bar", git_buf_cstr(&a));
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git_buf_join_n(&a, '/', 1, "baz");
|
|
cl_assert(git_buf_oom(&a) == 0);
|
|
cl_assert_equal_s("foo/bar/baz", git_buf_cstr(&a));
|
|
|
|
git_buf_free(&a);
|
|
|
|
check_joinbuf_2(NULL, "", "");
|
|
check_joinbuf_2(NULL, "a", "a");
|
|
check_joinbuf_2(NULL, "/a", "/a");
|
|
check_joinbuf_2("", "", "");
|
|
check_joinbuf_2("", "a", "a");
|
|
check_joinbuf_2("", "/a", "/a");
|
|
check_joinbuf_2("a", "", "a/");
|
|
check_joinbuf_2("a", "/", "a/");
|
|
check_joinbuf_2("a", "b", "a/b");
|
|
check_joinbuf_2("/", "a", "/a");
|
|
check_joinbuf_2("/", "", "/");
|
|
check_joinbuf_2("/a", "/b", "/a/b");
|
|
check_joinbuf_2("/a", "/b/", "/a/b/");
|
|
check_joinbuf_2("/a/", "b/", "/a/b/");
|
|
check_joinbuf_2("/a/", "/b/", "/a/b/");
|
|
check_joinbuf_2("/a/", "//b/", "/a/b/");
|
|
check_joinbuf_2("/abcd", "/defg", "/abcd/defg");
|
|
check_joinbuf_2("/abcd", "/defg/", "/abcd/defg/");
|
|
check_joinbuf_2("/abcd/", "defg/", "/abcd/defg/");
|
|
check_joinbuf_2("/abcd/", "/defg/", "/abcd/defg/");
|
|
|
|
check_joinbuf_n_2("", "", "");
|
|
check_joinbuf_n_2("", "a", "a");
|
|
check_joinbuf_n_2("", "/a", "/a");
|
|
check_joinbuf_n_2("a", "", "a/");
|
|
check_joinbuf_n_2("a", "/", "a/");
|
|
check_joinbuf_n_2("a", "b", "a/b");
|
|
check_joinbuf_n_2("/", "a", "/a");
|
|
check_joinbuf_n_2("/", "", "/");
|
|
check_joinbuf_n_2("/a", "/b", "/a/b");
|
|
check_joinbuf_n_2("/a", "/b/", "/a/b/");
|
|
check_joinbuf_n_2("/a/", "b/", "/a/b/");
|
|
check_joinbuf_n_2("/a/", "/b/", "/a/b/");
|
|
check_joinbuf_n_2("/abcd", "/defg", "/abcd/defg");
|
|
check_joinbuf_n_2("/abcd", "/defg/", "/abcd/defg/");
|
|
check_joinbuf_n_2("/abcd/", "defg/", "/abcd/defg/");
|
|
check_joinbuf_n_2("/abcd/", "/defg/", "/abcd/defg/");
|
|
|
|
check_joinbuf_n_4("", "", "", "", "");
|
|
check_joinbuf_n_4("", "a", "", "", "a;");
|
|
check_joinbuf_n_4("a", "", "", "", "a;");
|
|
check_joinbuf_n_4("", "", "", "a", "a");
|
|
check_joinbuf_n_4("a", "b", "", ";c;d;", "a;b;c;d;");
|
|
check_joinbuf_n_4("a", "b", "", ";c;d", "a;b;c;d");
|
|
check_joinbuf_n_4("abcd", "efgh", "ijkl", "mnop", "abcd;efgh;ijkl;mnop");
|
|
check_joinbuf_n_4("abcd;", "efgh;", "ijkl;", "mnop;", "abcd;efgh;ijkl;mnop;");
|
|
check_joinbuf_n_4(";abcd;", ";efgh;", ";ijkl;", ";mnop;", ";abcd;efgh;ijkl;mnop;");
|
|
}
|
|
|
|
void test_core_buffer__9(void)
|
|
{
|
|
git_buf buf = GIT_BUF_INIT;
|
|
|
|
/* just some exhaustive tests of various separator placement */
|
|
char *a[] = { "", "-", "a-", "-a", "-a-" };
|
|
char *b[] = { "", "-", "b-", "-b", "-b-" };
|
|
char sep[] = { 0, '-', '/' };
|
|
char *expect_null[] = { "", "-", "a-", "-a", "-a-",
|
|
"-", "--", "a--", "-a-", "-a--",
|
|
"b-", "-b-", "a-b-", "-ab-", "-a-b-",
|
|
"-b", "--b", "a--b", "-a-b", "-a--b",
|
|
"-b-", "--b-", "a--b-", "-a-b-", "-a--b-" };
|
|
char *expect_dash[] = { "", "-", "a-", "-a-", "-a-",
|
|
"-", "-", "a-", "-a-", "-a-",
|
|
"b-", "-b-", "a-b-", "-a-b-", "-a-b-",
|
|
"-b", "-b", "a-b", "-a-b", "-a-b",
|
|
"-b-", "-b-", "a-b-", "-a-b-", "-a-b-" };
|
|
char *expect_slas[] = { "", "-/", "a-/", "-a/", "-a-/",
|
|
"-", "-/-", "a-/-", "-a/-", "-a-/-",
|
|
"b-", "-/b-", "a-/b-", "-a/b-", "-a-/b-",
|
|
"-b", "-/-b", "a-/-b", "-a/-b", "-a-/-b",
|
|
"-b-", "-/-b-", "a-/-b-", "-a/-b-", "-a-/-b-" };
|
|
char **expect_values[] = { expect_null, expect_dash, expect_slas };
|
|
char separator, **expect;
|
|
unsigned int s, i, j;
|
|
|
|
for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {
|
|
separator = sep[s];
|
|
expect = expect_values[s];
|
|
|
|
for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {
|
|
for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {
|
|
git_buf_join(&buf, separator, a[i], b[j]);
|
|
cl_assert_equal_s(*expect, buf.ptr);
|
|
expect++;
|
|
}
|
|
}
|
|
}
|
|
|
|
git_buf_free(&buf);
|
|
}
|
|
|
|
void test_core_buffer__10(void)
|
|
{
|
|
git_buf a = GIT_BUF_INIT;
|
|
|
|
cl_git_pass(git_buf_join_n(&a, '/', 1, "test"));
|
|
cl_assert_equal_s(a.ptr, "test");
|
|
cl_git_pass(git_buf_join_n(&a, '/', 1, "string"));
|
|
cl_assert_equal_s(a.ptr, "test/string");
|
|
git_buf_clear(&a);
|
|
cl_git_pass(git_buf_join_n(&a, '/', 3, "test", "string", "join"));
|
|
cl_assert_equal_s(a.ptr, "test/string/join");
|
|
cl_git_pass(git_buf_join_n(&a, '/', 2, a.ptr, "more"));
|
|
cl_assert_equal_s(a.ptr, "test/string/join/test/string/join/more");
|
|
|
|
git_buf_free(&a);
|
|
}
|
|
|
|
void test_core_buffer__11(void)
|
|
{
|
|
git_buf a = GIT_BUF_INIT;
|
|
git_strarray t;
|
|
char *t1[] = { "nothing", "in", "common" };
|
|
char *t2[] = { "something", "something else", "some other" };
|
|
char *t3[] = { "something", "some fun", "no fun" };
|
|
char *t4[] = { "happy", "happier", "happiest" };
|
|
char *t5[] = { "happiest", "happier", "happy" };
|
|
char *t6[] = { "no", "nope", "" };
|
|
char *t7[] = { "", "doesn't matter" };
|
|
|
|
t.strings = t1;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "");
|
|
|
|
t.strings = t2;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "some");
|
|
|
|
t.strings = t3;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "");
|
|
|
|
t.strings = t4;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "happ");
|
|
|
|
t.strings = t5;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "happ");
|
|
|
|
t.strings = t6;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "");
|
|
|
|
t.strings = t7;
|
|
t.count = 3;
|
|
cl_git_pass(git_buf_text_common_prefix(&a, &t));
|
|
cl_assert_equal_s(a.ptr, "");
|
|
|
|
git_buf_free(&a);
|
|
}
|
|
|
|
void test_core_buffer__rfind_variants(void)
|
|
{
|
|
git_buf a = GIT_BUF_INIT;
|
|
ssize_t len;
|
|
|
|
cl_git_pass(git_buf_sets(&a, "/this/is/it/"));
|
|
|
|
len = (ssize_t)git_buf_len(&a);
|
|
|
|
cl_assert(git_buf_rfind(&a, '/') == len - 1);
|
|
cl_assert(git_buf_rfind_next(&a, '/') == len - 4);
|
|
|
|
cl_assert(git_buf_rfind(&a, 'i') == len - 3);
|
|
cl_assert(git_buf_rfind_next(&a, 'i') == len - 3);
|
|
|
|
cl_assert(git_buf_rfind(&a, 'h') == 2);
|
|
cl_assert(git_buf_rfind_next(&a, 'h') == 2);
|
|
|
|
cl_assert(git_buf_rfind(&a, 'q') == -1);
|
|
cl_assert(git_buf_rfind_next(&a, 'q') == -1);
|
|
|
|
git_buf_free(&a);
|
|
}
|
|
|
|
void test_core_buffer__puts_escaped(void)
|
|
{
|
|
git_buf a = GIT_BUF_INIT;
|
|
|
|
git_buf_clear(&a);
|
|
cl_git_pass(git_buf_text_puts_escaped(&a, "this is a test", "", ""));
|
|
cl_assert_equal_s("this is a test", a.ptr);
|
|
|
|
git_buf_clear(&a);
|
|
cl_git_pass(git_buf_text_puts_escaped(&a, "this is a test", "t", "\\"));
|
|
cl_assert_equal_s("\\this is a \\tes\\t", a.ptr);
|
|
|
|
git_buf_clear(&a);
|
|
cl_git_pass(git_buf_text_puts_escaped(&a, "this is a test", "i ", "__"));
|
|
cl_assert_equal_s("th__is__ __is__ a__ test", a.ptr);
|
|
|
|
git_buf_clear(&a);
|
|
cl_git_pass(git_buf_text_puts_escape_regex(&a, "^match\\s*[A-Z]+.*"));
|
|
cl_assert_equal_s("\\^match\\\\s\\*\\[A-Z\\]\\+\\.\\*", a.ptr);
|
|
|
|
git_buf_free(&a);
|
|
}
|
|
|
|
static void assert_unescape(char *expected, char *to_unescape) {
|
|
git_buf buf = GIT_BUF_INIT;
|
|
|
|
cl_git_pass(git_buf_sets(&buf, to_unescape));
|
|
git_buf_text_unescape(&buf);
|
|
cl_assert_equal_s(expected, buf.ptr);
|
|
cl_assert_equal_sz(strlen(expected), buf.size);
|
|
|
|
git_buf_free(&buf);
|
|
}
|
|
|
|
void test_core_buffer__unescape(void)
|
|
{
|
|
assert_unescape("Escaped\\", "Es\\ca\\ped\\");
|
|
assert_unescape("Es\\caped\\", "Es\\\\ca\\ped\\\\");
|
|
assert_unescape("\\", "\\");
|
|
assert_unescape("\\", "\\\\");
|
|
assert_unescape("", "");
|
|
}
|
|
|
|
void test_core_buffer__base64(void)
|
|
{
|
|
git_buf buf = GIT_BUF_INIT;
|
|
|
|
/* t h i s
|
|
* 0x 74 68 69 73
|
|
* 0b 01110100 01101000 01101001 01110011
|
|
* 0b 011101 000110 100001 101001 011100 110000
|
|
* 0x 1d 06 21 29 1c 30
|
|
* d G h p c w
|
|
*/
|
|
cl_git_pass(git_buf_put_base64(&buf, "this", 4));
|
|
cl_assert_equal_s("dGhpcw==", buf.ptr);
|
|
|
|
git_buf_clear(&buf);
|
|
cl_git_pass(git_buf_put_base64(&buf, "this!", 5));
|
|
cl_assert_equal_s("dGhpcyE=", buf.ptr);
|
|
|
|
git_buf_clear(&buf);
|
|
cl_git_pass(git_buf_put_base64(&buf, "this!\n", 6));
|
|
cl_assert_equal_s("dGhpcyEK", buf.ptr);
|
|
|
|
git_buf_free(&buf);
|
|
}
|
|
|
|
void test_core_buffer__classify_with_utf8(void)
|
|
{
|
|
char *data0 = "Simple text\n";
|
|
size_t data0len = 12;
|
|
char *data1 = "Is that UTF-8 data I see…\nYep!\n";
|
|
size_t data1len = 31;
|
|
char *data2 = "Internal NUL!!!\000\n\nI see you!\n";
|
|
size_t data2len = 29;
|
|
git_buf b;
|
|
|
|
b.ptr = data0; b.size = b.asize = data0len;
|
|
cl_assert(!git_buf_text_is_binary(&b));
|
|
cl_assert(!git_buf_text_contains_nul(&b));
|
|
|
|
b.ptr = data1; b.size = b.asize = data1len;
|
|
cl_assert(git_buf_text_is_binary(&b));
|
|
cl_assert(!git_buf_text_contains_nul(&b));
|
|
|
|
b.ptr = data2; b.size = b.asize = data2len;
|
|
cl_assert(git_buf_text_is_binary(&b));
|
|
cl_assert(git_buf_text_contains_nul(&b));
|
|
}
|
|
|
|
#define SIMILARITY_TEST_DATA_1 \
|
|
"000\n001\n002\n003\n004\n005\n006\n007\n008\n009\n" \
|
|
"010\n011\n012\n013\n014\n015\n016\n017\n018\n019\n" \
|
|
"020\n021\n022\n023\n024\n025\n026\n027\n028\n029\n" \
|
|
"030\n031\n032\n033\n034\n035\n036\n037\n038\n039\n" \
|
|
"040\n041\n042\n043\n044\n045\n046\n047\n048\n049\n"
|
|
|
|
void test_core_buffer__similarity_metric(void)
|
|
{
|
|
git_hashsig *a, *b;
|
|
git_buf buf = GIT_BUF_INIT;
|
|
int sim;
|
|
|
|
/* in the first case, we compare data to itself and expect 100% match */
|
|
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
|
|
cl_assert_equal_i(100, git_hashsig_compare(a, b));
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
|
|
/* if we change just a single byte, how much does that change magnify? */
|
|
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
cl_git_pass(git_buf_sets(&buf,
|
|
"000\n001\n002\n003\n004\n005\n006\n007\n008\n009\n" \
|
|
"010\n011\n012\n013\n014\n015\n016\n017\n018\n019\n" \
|
|
"x020x\n021\n022\n023\n024\n025\n026\n027\n028\n029\n" \
|
|
"030\n031\n032\n033\n034\n035\n036\n037\n038\n039\n" \
|
|
"040\n041\n042\n043\n044\n045\n046\n047\n048\n049\n"
|
|
));
|
|
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
|
|
sim = git_hashsig_compare(a, b);
|
|
|
|
cl_assert_in_range(95, sim, 100); /* expect >95% similarity */
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
|
|
/* let's try comparing data to a superset of itself */
|
|
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1
|
|
"050\n051\n052\n053\n054\n055\n056\n057\n058\n059\n"));
|
|
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
|
|
sim = git_hashsig_compare(a, b);
|
|
/* 20% lines added ~= 10% lines changed */
|
|
|
|
cl_assert_in_range(85, sim, 95); /* expect similarity around 90% */
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
|
|
/* what if we keep about half the original data and add half new */
|
|
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
cl_git_pass(git_buf_sets(&buf,
|
|
"000\n001\n002\n003\n004\n005\n006\n007\n008\n009\n" \
|
|
"010\n011\n012\n013\n014\n015\n016\n017\n018\n019\n" \
|
|
"020x\n021\n022\n023\n024\n" \
|
|
"x25\nx26\nx27\nx28\nx29\n" \
|
|
"x30\nx31\nx32\nx33\nx34\nx35\nx36\nx37\nx38\nx39\n" \
|
|
"x40\nx41\nx42\nx43\nx44\nx45\nx46\nx47\nx48\nx49\n"
|
|
));
|
|
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
|
|
sim = git_hashsig_compare(a, b);
|
|
/* 50% lines changed */
|
|
|
|
cl_assert_in_range(40, sim, 60); /* expect in the 40-60% similarity range */
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
|
|
/* lastly, let's check that we can hash file content as well */
|
|
|
|
cl_git_pass(git_buf_sets(&buf, SIMILARITY_TEST_DATA_1));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, GIT_HASHSIG_NORMAL));
|
|
|
|
cl_git_pass(git_futils_mkdir("scratch", NULL, 0755, GIT_MKDIR_PATH));
|
|
cl_git_mkfile("scratch/testdata", SIMILARITY_TEST_DATA_1);
|
|
cl_git_pass(git_hashsig_create_fromfile(
|
|
&b, "scratch/testdata", GIT_HASHSIG_NORMAL));
|
|
|
|
cl_assert_equal_i(100, git_hashsig_compare(a, b));
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
|
|
git_buf_free(&buf);
|
|
git_futils_rmdir_r("scratch", NULL, GIT_RMDIR_REMOVE_FILES);
|
|
}
|
|
|
|
|
|
void test_core_buffer__similarity_metric_whitespace(void)
|
|
{
|
|
git_hashsig *a, *b;
|
|
git_buf buf = GIT_BUF_INIT;
|
|
int sim, i, j;
|
|
git_hashsig_option_t opt;
|
|
const char *tabbed =
|
|
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\n"
|
|
" separator = sep[s];\n"
|
|
" expect = expect_values[s];\n"
|
|
"\n"
|
|
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\n"
|
|
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\n"
|
|
" git_buf_join(&buf, separator, a[i], b[j]);\n"
|
|
" cl_assert_equal_s(*expect, buf.ptr);\n"
|
|
" expect++;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n";
|
|
const char *spaced =
|
|
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\n"
|
|
" separator = sep[s];\n"
|
|
" expect = expect_values[s];\n"
|
|
"\n"
|
|
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\n"
|
|
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\n"
|
|
" git_buf_join(&buf, separator, a[i], b[j]);\n"
|
|
" cl_assert_equal_s(*expect, buf.ptr);\n"
|
|
" expect++;\n"
|
|
" }\n"
|
|
" }\n"
|
|
" }\n";
|
|
const char *crlf_spaced2 =
|
|
" for (s = 0; s < sizeof(sep) / sizeof(char); ++s) {\r\n"
|
|
" separator = sep[s];\r\n"
|
|
" expect = expect_values[s];\r\n"
|
|
"\r\n"
|
|
" for (j = 0; j < sizeof(b) / sizeof(char*); ++j) {\r\n"
|
|
" for (i = 0; i < sizeof(a) / sizeof(char*); ++i) {\r\n"
|
|
" git_buf_join(&buf, separator, a[i], b[j]);\r\n"
|
|
" cl_assert_equal_s(*expect, buf.ptr);\r\n"
|
|
" expect++;\r\n"
|
|
" }\r\n"
|
|
" }\r\n"
|
|
" }\r\n";
|
|
const char *text[3] = { tabbed, spaced, crlf_spaced2 };
|
|
|
|
/* let's try variations of our own code with whitespace changes */
|
|
|
|
for (opt = GIT_HASHSIG_NORMAL; opt <= GIT_HASHSIG_SMART_WHITESPACE; ++opt) {
|
|
for (i = 0; i < 3; ++i) {
|
|
for (j = 0; j < 3; ++j) {
|
|
cl_git_pass(git_buf_sets(&buf, text[i]));
|
|
cl_git_pass(git_hashsig_create(&a, buf.ptr, buf.size, opt));
|
|
|
|
cl_git_pass(git_buf_sets(&buf, text[j]));
|
|
cl_git_pass(git_hashsig_create(&b, buf.ptr, buf.size, opt));
|
|
|
|
sim = git_hashsig_compare(a, b);
|
|
|
|
if (opt == GIT_HASHSIG_NORMAL) {
|
|
if (i == j)
|
|
cl_assert_equal_i(100, sim);
|
|
else
|
|
cl_assert_in_range(0, sim, 30); /* pretty different */
|
|
} else {
|
|
cl_assert_equal_i(100, sim);
|
|
}
|
|
|
|
git_hashsig_free(a);
|
|
git_hashsig_free(b);
|
|
}
|
|
}
|
|
}
|
|
|
|
git_buf_free(&buf);
|
|
}
|
|
|
|
#define check_buf(expected,buf) do { \
|
|
cl_assert_equal_s(expected, buf.ptr); \
|
|
cl_assert_equal_sz(strlen(expected), buf.size); } while (0)
|
|
|
|
void test_core_buffer__lf_and_crlf_conversions(void)
|
|
{
|
|
git_buf src = GIT_BUF_INIT, tgt = GIT_BUF_INIT;
|
|
|
|
/* LF source */
|
|
|
|
git_buf_sets(&src, "lf\nlf\nlf\nlf\n");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("lf\r\nlf\r\nlf\r\nlf\r\n", tgt);
|
|
|
|
cl_assert_equal_i(GIT_ENOTFOUND, git_buf_text_crlf_to_lf(&tgt, &src));
|
|
/* no conversion needed if all LFs already */
|
|
|
|
git_buf_sets(&src, "\nlf\nlf\nlf\nlf\nlf");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("\r\nlf\r\nlf\r\nlf\r\nlf\r\nlf", tgt);
|
|
|
|
cl_assert_equal_i(GIT_ENOTFOUND, git_buf_text_crlf_to_lf(&tgt, &src));
|
|
/* no conversion needed if all LFs already */
|
|
|
|
/* CRLF source */
|
|
|
|
git_buf_sets(&src, "crlf\r\ncrlf\r\ncrlf\r\ncrlf\r\n");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("crlf\r\ncrlf\r\ncrlf\r\ncrlf\r\n", tgt);
|
|
check_buf(src.ptr, tgt);
|
|
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("crlf\ncrlf\ncrlf\ncrlf\n", tgt);
|
|
|
|
git_buf_sets(&src, "\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf\r\ncrlf", tgt);
|
|
check_buf(src.ptr, tgt);
|
|
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("\ncrlf\ncrlf\ncrlf\ncrlf\ncrlf", tgt);
|
|
|
|
/* CRLF in LF text */
|
|
|
|
git_buf_sets(&src, "\nlf\nlf\ncrlf\r\nlf\nlf\ncrlf\r\n");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("\r\nlf\r\nlf\r\ncrlf\r\nlf\r\nlf\r\ncrlf\r\n", tgt);
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("\nlf\nlf\ncrlf\nlf\nlf\ncrlf\n", tgt);
|
|
|
|
/* LF in CRLF text */
|
|
|
|
git_buf_sets(&src, "\ncrlf\r\ncrlf\r\nlf\ncrlf\r\ncrlf");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("\r\ncrlf\r\ncrlf\r\nlf\r\ncrlf\r\ncrlf", tgt);
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("\ncrlf\ncrlf\nlf\ncrlf\ncrlf", tgt);
|
|
|
|
/* bare CR test */
|
|
|
|
git_buf_sets(&src, "\rcrlf\r\nlf\nlf\ncr\rcrlf\r\nlf\ncr\r");
|
|
|
|
cl_git_pass(git_buf_text_lf_to_crlf(&tgt, &src));
|
|
check_buf("\rcrlf\r\nlf\r\nlf\r\ncr\rcrlf\r\nlf\r\ncr\r", tgt);
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("\rcrlf\nlf\nlf\ncr\rcrlf\nlf\ncr\r", tgt);
|
|
|
|
git_buf_sets(&src, "\rcr\r");
|
|
cl_assert_equal_i(GIT_ENOTFOUND, git_buf_text_lf_to_crlf(&tgt, &src));
|
|
cl_git_pass(git_buf_text_crlf_to_lf(&tgt, &src));
|
|
check_buf("\rcr\r", tgt);
|
|
|
|
git_buf_free(&src);
|
|
git_buf_free(&tgt);
|
|
}
|