#include "clar_libgit2.h"
#include "diff_helpers.h"
void test_diff_diffiter__initialize(void)
{
}
void test_diff_diffiter__cleanup(void)
{
cl_git_sandbox_cleanup();
}
void test_diff_diffiter__create(void)
{
git_repository *repo = cl_git_sandbox_init("attr");
git_diff_list *diff;
size_t d, num_d;
cl_git_pass(git_diff_workdir_to_index(repo, NULL, &diff));
num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
const git_diff_delta *delta;
cl_git_pass(git_diff_get_patch(NULL, &delta, diff, d));
}
git_diff_list_free(diff);
}
void test_diff_diffiter__iterate_files(void)
{
git_repository *repo = cl_git_sandbox_init("attr");
git_diff_list *diff;
size_t d, num_d;
int count = 0;
cl_git_pass(git_diff_workdir_to_index(repo, NULL, &diff));
num_d = git_diff_num_deltas(diff);
cl_assert_equal_i(6, (int)num_d);
for (d = 0; d < num_d; ++d) {
const git_diff_delta *delta;
cl_git_pass(git_diff_get_patch(NULL, &delta, diff, d));
cl_assert(delta != NULL);
count++;
}
cl_assert_equal_i(6, count);
git_diff_list_free(diff);
}
void test_diff_diffiter__iterate_files_2(void)
{
git_repository *repo = cl_git_sandbox_init("status");
git_diff_list *diff;
size_t d, num_d;
int count = 0;
cl_git_pass(git_diff_workdir_to_index(repo, NULL, &diff));
num_d = git_diff_num_deltas(diff);
cl_assert_equal_i(8, (int)num_d);
for (d = 0; d < num_d; ++d) {
const git_diff_delta *delta;
cl_git_pass(git_diff_get_patch(NULL, &delta, diff, d));
cl_assert(delta != NULL);
count++;
}
cl_assert_equal_i(8, count);
git_diff_list_free(diff);
}
void test_diff_diffiter__iterate_files_and_hunks(void)
{
git_repository *repo = cl_git_sandbox_init("status");
git_diff_options opts = {0};
git_diff_list *diff = NULL;
size_t d, num_d;
int file_count = 0, hunk_count = 0;
opts.context_lines = 3;
opts.interhunk_lines = 1;
opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
cl_git_pass(git_diff_workdir_to_index(repo, &opts, &diff));
num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
git_diff_patch *patch;
const git_diff_delta *delta;
size_t h, num_h;
cl_git_pass(git_diff_get_patch(&patch, &delta, diff, d));
cl_assert(delta);
cl_assert(patch);
file_count++;
num_h = git_diff_patch_num_hunks(patch);
for (h = 0; h < num_h; h++) {
const git_diff_range *range;
const char *header;
size_t header_len, num_l;
cl_git_pass(git_diff_patch_get_hunk(
&range, &header, &header_len, &num_l, patch, h));
cl_assert(range);
cl_assert(header);
hunk_count++;
}
git_diff_patch_free(patch);
}
cl_assert_equal_i(13, file_count);
cl_assert_equal_i(8, hunk_count);
git_diff_list_free(diff);
}
void test_diff_diffiter__max_size_threshold(void)
{
git_repository *repo = cl_git_sandbox_init("status");
git_diff_options opts = {0};
git_diff_list *diff = NULL;
int file_count = 0, binary_count = 0, hunk_count = 0;
size_t d, num_d;
opts.context_lines = 3;
opts.interhunk_lines = 1;
opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
cl_git_pass(git_diff_workdir_to_index(repo, &opts, &diff));
num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
git_diff_patch *patch;
const git_diff_delta *delta;
cl_git_pass(git_diff_get_patch(&patch, &delta, diff, d));
cl_assert(delta);
cl_assert(patch);
file_count++;
hunk_count += (int)git_diff_patch_num_hunks(patch);
assert(delta->binary == 0 || delta->binary == 1);
binary_count += delta->binary;
git_diff_patch_free(patch);
}
cl_assert_equal_i(13, file_count);
cl_assert_equal_i(0, binary_count);
cl_assert_equal_i(8, hunk_count);
git_diff_list_free(diff);
/* try again with low file size threshold */
file_count = binary_count = hunk_count = 0;
opts.context_lines = 3;
opts.interhunk_lines = 1;
opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
opts.max_size = 50; /* treat anything over 50 bytes as binary! */
cl_git_pass(git_diff_workdir_to_index(repo, &opts, &diff));
num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
git_diff_patch *patch;
const git_diff_delta *delta;
cl_git_pass(git_diff_get_patch(&patch, &delta, diff, d));
file_count++;
hunk_count += (int)git_diff_patch_num_hunks(patch);
assert(delta->binary == 0 || delta->binary == 1);
binary_count += delta->binary;
git_diff_patch_free(patch);
}
cl_assert_equal_i(13, file_count);
/* Three files are over the 50 byte threshold:
* - staged_changes_file_deleted
* - staged_changes_modified_file
* - staged_new_file_modified_file
*/
cl_assert_equal_i(3, binary_count);
cl_assert_equal_i(5, hunk_count);
git_diff_list_free(diff);
}
void test_diff_diffiter__iterate_all(void)
{
git_repository *repo = cl_git_sandbox_init("status");
git_diff_options opts = {0};
git_diff_list *diff = NULL;
diff_expects exp = {0};
size_t d, num_d;
opts.context_lines = 3;
opts.interhunk_lines = 1;
opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
cl_git_pass(git_diff_workdir_to_index(repo, &opts, &diff));
num_d = git_diff_num_deltas(diff);
for (d = 0; d < num_d; ++d) {
git_diff_patch *patch;
const git_diff_delta *delta;
size_t h, num_h;
cl_git_pass(git_diff_get_patch(&patch, &delta, diff, d));
cl_assert(patch && delta);
exp.files++;
num_h = git_diff_patch_num_hunks(patch);
for (h = 0; h < num_h; h++) {
const git_diff_range *range;
const char *header;
size_t header_len, l, num_l;
cl_git_pass(git_diff_patch_get_hunk(
&range, &header, &header_len, &num_l, patch, h));
cl_assert(range && header);
exp.hunks++;
for (l = 0; l < num_l; ++l) {
char origin;
const char *content;
size_t content_len;
cl_git_pass(git_diff_patch_get_line_in_hunk(
&origin, &content, &content_len, NULL, NULL, patch, h, l));
cl_assert(content);
exp.lines++;
}
}
git_diff_patch_free(patch);
}
cl_assert_equal_i(13, exp.files);
cl_assert_equal_i(8, exp.hunks);
cl_assert_equal_i(14, exp.lines);
git_diff_list_free(diff);
}
static void iterate_over_patch(git_diff_patch *patch, diff_expects *exp)
{
size_t h, num_h = git_diff_patch_num_hunks(patch), num_l;
exp->files++;
exp->hunks += (int)num_h;
/* let's iterate in reverse, just because we can! */
for (h = 1, num_l = 0; h <= num_h; ++h)
num_l += git_diff_patch_num_lines_in_hunk(patch, num_h - h);
exp->lines += (int)num_l;
}
#define PATCH_CACHE 5
void test_diff_diffiter__iterate_randomly_while_saving_state(void)
{
git_repository *repo = cl_git_sandbox_init("status");
git_diff_options opts = {0};
git_diff_list *diff = NULL;
diff_expects exp = {0};
git_diff_patch *patches[PATCH_CACHE];
size_t p, d, num_d;
memset(patches, 0, sizeof(patches));
opts.context_lines = 3;
opts.interhunk_lines = 1;
opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_INCLUDE_UNTRACKED;
cl_git_pass(git_diff_workdir_to_index(repo, &opts, &diff));
num_d = git_diff_num_deltas(diff);
/* To make sure that references counts work for diff and patch objects,
* this generates patches and randomly caches them. Only when the patch
* is removed from the cache are hunks and lines counted. At the end,
* there are still patches in the cache, so free the diff and try to
* process remaining patches after the diff is freed.
*/
srand(121212);
p = rand() % PATCH_CACHE;
for (d = 0; d < num_d; ++d) {
/* take old patch */
git_diff_patch *patch = patches[p];
patches[p] = NULL;
/* cache new patch */
cl_git_pass(git_diff_get_patch(&patches[p], NULL, diff, d));
cl_assert(patches[p] != NULL);
/* process old patch if non-NULL */
if (patch != NULL) {
iterate_over_patch(patch, &exp);
git_diff_patch_free(patch);
}
p = rand() % PATCH_CACHE;
}
/* free diff list now - refcounts should keep things safe */
git_diff_list_free(diff);
/* process remaining unprocessed patches */
for (p = 0; p < PATCH_CACHE; p++) {
git_diff_patch *patch = patches[p];
if (patch != NULL) {
iterate_over_patch(patch, &exp);
git_diff_patch_free(patch);
}
}
/* hopefully it all still added up right */
cl_assert_equal_i(13, exp.files);
cl_assert_equal_i(8, exp.hunks);
cl_assert_equal_i(14, exp.lines);
}
