mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-03 17:57:25 +00:00
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
#include "clar_libgit2.h"
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#include "../checkout/checkout_helpers.h"
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#include "index.h"
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#include "repository.h"
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static git_repository *g_repo;
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void test_diff_externalmodifications__initialize(void)
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{
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g_repo = cl_git_sandbox_init("testrepo2");
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}
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void test_diff_externalmodifications__cleanup(void)
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{
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cl_git_sandbox_cleanup();
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g_repo = NULL;
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}
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void test_diff_externalmodifications__file_becomes_smaller(void)
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{
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git_index *index;
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git_diff *diff;
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git_patch* patch;
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git_str path = GIT_STR_INIT;
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char big_string[500001];
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cl_git_pass(git_str_joinpath(&path, git_repository_workdir(g_repo), "README"));
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/* Modify the file with a large string */
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memset(big_string, '\n', sizeof(big_string) - 1);
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big_string[sizeof(big_string) - 1] = '\0';
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cl_git_mkfile(path.ptr, big_string);
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/* Get a diff */
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cl_git_pass(git_repository_index(&index, g_repo));
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cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
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cl_assert_equal_i(1, git_diff_num_deltas(diff));
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cl_assert_equal_i(500000, git_diff_get_delta(diff, 0)->new_file.size);
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/* Simulate file modification after we've gotten the diff.
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* Write a shorter string to ensure that we don't mmap 500KB from
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* the previous revision, which would most likely crash. */
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cl_git_mkfile(path.ptr, "hello");
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/* Attempt to get a patch */
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cl_git_fail(git_patch_from_diff(&patch, diff, 0));
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git_index_free(index);
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git_diff_free(diff);
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git_str_dispose(&path);
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}
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void test_diff_externalmodifications__file_becomes_empty(void)
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{
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git_index *index;
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git_diff *diff;
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git_patch* patch;
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git_str path = GIT_STR_INIT;
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cl_git_pass(git_str_joinpath(&path, git_repository_workdir(g_repo), "README"));
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/* Modify the file */
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cl_git_mkfile(path.ptr, "hello");
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/* Get a diff */
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cl_git_pass(git_repository_index(&index, g_repo));
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cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
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cl_assert_equal_i(1, git_diff_num_deltas(diff));
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cl_assert_equal_i(5, git_diff_get_delta(diff, 0)->new_file.size);
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/* Empty out the file after we've gotten the diff */
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cl_git_mkfile(path.ptr, "");
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/* Attempt to get a patch */
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cl_git_fail(git_patch_from_diff(&patch, diff, 0));
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git_index_free(index);
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git_diff_free(diff);
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git_str_dispose(&path);
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}
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void test_diff_externalmodifications__file_deleted(void)
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{
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git_index *index;
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git_diff *diff;
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git_patch* patch;
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git_str path = GIT_STR_INIT;
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cl_git_pass(git_str_joinpath(&path, git_repository_workdir(g_repo), "README"));
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/* Get a diff */
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cl_git_pass(git_repository_index(&index, g_repo));
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cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
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cl_assert_equal_i(0, git_diff_num_deltas(diff));
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/* Delete the file */
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cl_git_rmfile(path.ptr);
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/* Attempt to get a patch */
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cl_git_fail(git_patch_from_diff(&patch, diff, 0));
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git_index_free(index);
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git_diff_free(diff);
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git_str_dispose(&path);
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}
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void test_diff_externalmodifications__empty_file_becomes_non_empty(void)
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{
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git_index *index;
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git_diff *diff;
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git_patch* patch;
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git_str path = GIT_STR_INIT;
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cl_git_pass(git_str_joinpath(&path, git_repository_workdir(g_repo), "README"));
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/* Empty out the file */
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cl_git_mkfile(path.ptr, "");
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/* Get a diff */
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cl_git_pass(git_repository_index(&index, g_repo));
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cl_git_pass(git_diff_index_to_workdir(&diff, g_repo, index, NULL));
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cl_assert_equal_i(1, git_diff_num_deltas(diff));
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cl_assert_equal_i(0, git_diff_get_delta(diff, 0)->new_file.size);
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/* Simulate file modification after we've gotten the diff */
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cl_git_mkfile(path.ptr, "hello");
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cl_git_fail(git_patch_from_diff(&patch, diff, 0));
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git_index_free(index);
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git_diff_free(diff);
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git_str_dispose(&path);
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}
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