libgit2/tests/diff/parse.c
Edward Thomson 7166bb1665 introduce git_diff_from_buffer to parse diffs
Parse diff files into a `git_diff` structure.
2016-05-26 13:01:09 -05:00

61 lines
1.6 KiB
C

#include "clar_libgit2.h"
#include "patch.h"
#include "patch_parse.h"
#include "../patch/patch_common.h"
void test_diff_parse__nonpatches_fail_with_notfound(void)
{
git_diff *diff;
const char *not = PATCH_NOT_A_PATCH;
const char *not_with_leading = "Leading text.\n" PATCH_NOT_A_PATCH;
const char *not_with_trailing = PATCH_NOT_A_PATCH "Trailing text.\n";
const char *not_with_both = "Lead.\n" PATCH_NOT_A_PATCH "Trail.\n";
cl_git_fail_with(GIT_ENOTFOUND,
git_diff_from_buffer(&diff,
not,
strlen(not)));
cl_git_fail_with(GIT_ENOTFOUND,
git_diff_from_buffer(&diff,
not_with_leading,
strlen(not_with_leading)));
cl_git_fail_with(GIT_ENOTFOUND,
git_diff_from_buffer(&diff,
not_with_trailing,
strlen(not_with_trailing)));
cl_git_fail_with(GIT_ENOTFOUND,
git_diff_from_buffer(&diff,
not_with_both,
strlen(not_with_both)));
}
static void test_parse_invalid_diff(const char *invalid_diff)
{
git_diff *diff;
git_buf buf = GIT_BUF_INIT;
/* throw some random (legitimate) diffs in with the given invalid
* one.
*/
git_buf_puts(&buf, PATCH_ORIGINAL_TO_CHANGE_FIRSTLINE);
git_buf_puts(&buf, PATCH_BINARY_DELTA);
git_buf_puts(&buf, invalid_diff);
git_buf_puts(&buf, PATCH_ORIGINAL_TO_CHANGE_MIDDLE);
git_buf_puts(&buf, PATCH_BINARY_LITERAL);
cl_git_fail_with(GIT_ERROR,
git_diff_from_buffer(&diff, buf.ptr, buf.size));
git_buf_free(&buf);
}
void test_diff_parse__invalid_patches_fails(void)
{
test_parse_invalid_diff(PATCH_CORRUPT_MISSING_NEW_FILE);
test_parse_invalid_diff(PATCH_CORRUPT_MISSING_OLD_FILE);
test_parse_invalid_diff(PATCH_CORRUPT_NO_CHANGES);
test_parse_invalid_diff(PATCH_CORRUPT_MISSING_HUNK_HEADER);
}