void test_diff_blob__can_compare_two_binary_blobs(void)
{
git_blob *heart;
git_oid h_oid;
/* heart.png */
cl_git_pass(git_oid_fromstrn(&h_oid, "de863bff", 8));
cl_git_pass(git_blob_lookup_prefix(&heart, g_repo, &h_oid, 8));
cl_git_pass(git_diff_blobs(
alien, NULL, heart, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_binary_blobs_comparison(&expected);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
heart, NULL, alien, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_binary_blobs_comparison(&expected);
git_blob_free(heart);
}
void test_diff_blob__can_compare_identical_blobs(void)
{
opts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_diff_blobs(
d, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_identical_blobs_comparison(&expected);
cl_assert_equal_i(0, expected.files_binary);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
NULL, NULL, NULL, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_identical_blobs_comparison(&expected);
cl_assert_equal_i(0, expected.files_binary);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
alien, NULL, alien, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_identical_blobs_comparison(&expected);
cl_assert(expected.files_binary > 0);
}
void test_diff_blob__can_compare_against_null_blobs(void)
{
git_blob *e = NULL;
cl_git_pass(git_diff_blobs(
d, NULL, e, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(14, expected.hunk_old_lines);
cl_assert_equal_i(14, expected.lines);
cl_assert_equal_i(14, expected.line_dels);
opts.flags |= GIT_DIFF_REVERSE;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
d, NULL, e, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(0, expected.files_binary);
cl_assert_equal_i(1, expected.hunks);
cl_assert_equal_i(14, expected.hunk_new_lines);
cl_assert_equal_i(14, expected.lines);
cl_assert_equal_i(14, expected.line_adds);
opts.flags ^= GIT_DIFF_REVERSE;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
alien, NULL, NULL, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.files_binary);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_DELETED]);
cl_assert_equal_i(0, expected.hunks);
cl_assert_equal_i(0, expected.lines);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
NULL, NULL, alien, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.files);
cl_assert_equal_i(1, expected.files_binary);
cl_assert_equal_i(1, expected.file_status[GIT_DELTA_ADDED]);
cl_assert_equal_i(0, expected.hunks);
cl_assert_equal_i(0, expected.lines);
}
void test_diff_blob__can_compare_text_blobs(void)
{
git_blob *a, *b, *c;
git_oid a_oid, b_oid, c_oid;
/* tests/resources/attr/root_test1 */
cl_git_pass(git_oid_fromstrn(&a_oid, "45141a79", 8));
cl_git_pass(git_blob_lookup_prefix(&a, g_repo, &a_oid, 4));
/* tests/resources/attr/root_test2 */
cl_git_pass(git_oid_fromstrn(&b_oid, "4d713dc4", 8));
cl_git_pass(git_blob_lookup_prefix(&b, g_repo, &b_oid, 4));
/* tests/resources/attr/root_test3 */
cl_git_pass(git_oid_fromstrn(&c_oid, "c96bbb2c2557a832", 16));
cl_git_pass(git_blob_lookup_prefix(&c, g_repo, &c_oid, 16));
/* Doing the equivalent of a `git diff -U1` on these files */
/* diff on tests/resources/attr/root_test1 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
a, NULL, b, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 6, 1, 5, 0, &expected);
/* same diff but use direct buffers */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_buffers(
git_blob_rawcontent(a), (size_t)git_blob_rawsize(a), NULL,
git_blob_rawcontent(b), (size_t)git_blob_rawsize(b), NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 6, 1, 5, 0, &expected);
/* diff on tests/resources/attr/root_test2 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
b, NULL, c, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 15, 3, 9, 3, &expected);
/* diff on tests/resources/attr/root_test3 */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
a, NULL, c, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(1, 13, 0, 12, 1, &expected);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
c, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified(2, 14, 4, 6, 4, &expected);
git_blob_free(a);
git_blob_free(b);
git_blob_free(c);
}
void test_diff_blob__can_compare_a_binary_blob_and_a_text_blob(void)
{
cl_git_pass(git_diff_blobs(
alien, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_binary_blobs_comparison(&expected);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
d, NULL, alien, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_binary_blobs_comparison(&expected);
}
void test_diff_blob__checks_options_version_too_high(void)
{
const git_error *err;
opts.version = 1024;
cl_git_fail(git_diff_blobs(
d, NULL, alien, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
err = giterr_last();
cl_assert_equal_i(GITERR_INVALID, err->klass);
}
void test_diff_binary__blob_to_blob(void)
{
git_index *index;
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
git_blob *old_blob, *new_blob;
git_oid old_id, new_id;
struct diff_data diff_data = {0};
opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY;
opts.id_abbrev = GIT_OID_HEXSZ;
repo = cl_git_sandbox_init("renames");
cl_git_pass(git_repository_index__weakptr(&index, repo));
cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n");
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
cl_git_pass(git_index_write(index));
git_oid_fromstr(&old_id, "9a69d960ae94b060f56c2a8702545e2bb1abb935");
git_oid_fromstr(&new_id, "1111d4f11f4b35bf6759e0fb714fe09731ef0840");
cl_git_pass(git_blob_lookup(&old_blob, repo, &old_id));
cl_git_pass(git_blob_lookup(&new_blob, repo, &new_id));
cl_git_pass(git_diff_blobs(old_blob,
"untimely.txt", new_blob, "untimely.txt", &opts,
file_cb, binary_cb, hunk_cb, line_cb, &diff_data));
cl_assert_equal_s("untimely.txt", diff_data.old_path);
cl_assert_equal_oid(&old_id, &diff_data.old_id);
cl_assert_equal_i(GIT_DIFF_BINARY_DELTA, diff_data.old_binary_type);
cl_assert_equal_i(7, diff_data.old_binary_inflatedlen);
cl_assert_equal_s("c%18D`@*{63ljhg(E~C7",
diff_data.old_binary_base85.ptr);
cl_assert_equal_s("untimely.txt", diff_data.new_path);
cl_assert_equal_oid(&new_id, &diff_data.new_id);
cl_assert_equal_i(GIT_DIFF_BINARY_DELTA, diff_data.new_binary_type);
cl_assert_equal_i(32, diff_data.new_binary_inflatedlen);
cl_assert_equal_s("c%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW",
diff_data.new_binary_base85.ptr);
git_blob_free(old_blob);
git_blob_free(new_blob);
git__free(diff_data.old_path);
git__free(diff_data.new_path);
git_buf_dispose(&diff_data.old_binary_base85);
git_buf_dispose(&diff_data.new_binary_base85);
}
/*
* $ git diff fe773770 a0f7217
* diff --git a/fe773770 b/a0f7217
* index fe77377..a0f7217 100644
* --- a/fe773770
* +++ b/a0f7217
* @@ -1,6 +1,6 @@
* Here is some stuff at the start
*
* -This should go in one hunk
* +This should go in one hunk (first)
*
* Some additional lines
*
* @@ -8,7 +8,7 @@ Down here below the other lines
*
* With even more at the end
*
* -Followed by a second hunk of stuff
* +Followed by a second hunk of stuff (second)
*
* That happens down here
*/
void test_diff_blob__comparing_two_text_blobs_honors_interhunkcontext(void)
{
git_blob *old_d;
git_oid old_d_oid;
opts.context_lines = 3;
/* tests/resources/attr/root_test1 from commit f5b0af1 */
cl_git_pass(git_oid_fromstrn(&old_d_oid, "fe773770", 8));
cl_git_pass(git_blob_lookup_prefix(&old_d, g_repo, &old_d_oid, 8));
/* Test with default inter-hunk-context (not set) => default is 0 */
cl_git_pass(git_diff_blobs(
old_d, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(2, expected.hunks);
/* Test with inter-hunk-context explicitly set to 0 */
opts.interhunk_lines = 0;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
old_d, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(2, expected.hunks);
/* Test with inter-hunk-context explicitly set to 1 */
opts.interhunk_lines = 1;
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
old_d, NULL, d, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
cl_assert_equal_i(1, expected.hunks);
git_blob_free(old_d);
}
void test_diff_blob__binary_data_comparisons(void)
{
git_blob *bin, *nonbin;
git_oid oid;
const char *nonbin_content = "Hello from the root\n";
size_t nonbin_len = 20;
const char *bin_content = "0123456789\n\x01\x02\x03\x04\x05\x06\x07\x08\x09\x00\n0123456789\n";
size_t bin_len = 33;
opts.flags |= GIT_DIFF_INCLUDE_UNMODIFIED;
cl_git_pass(git_oid_fromstrn(&oid, "45141a79", 8));
cl_git_pass(git_blob_lookup_prefix(&nonbin, g_repo, &oid, 8));
cl_git_pass(git_oid_fromstrn(&oid, "b435cd56", 8));
cl_git_pass(git_blob_lookup_prefix(&bin, g_repo, &oid, 8));
/* non-binary to reference content */
quick_diff_blob_to_str(nonbin, NULL, nonbin_content, nonbin_len, NULL);
assert_identical_blobs_comparison(&expected);
cl_assert_equal_i(0, expected.files_binary);
/* binary to reference content */
quick_diff_blob_to_str(bin, NULL, bin_content, bin_len, NULL);
assert_identical_blobs_comparison(&expected);
cl_assert_equal_i(1, expected.files_binary);
/* non-binary to binary content */
quick_diff_blob_to_str(nonbin, NULL, bin_content, bin_len, NULL);
assert_binary_blobs_comparison(&expected);
/* binary to non-binary content */
quick_diff_blob_to_str(bin, NULL, nonbin_content, nonbin_len, NULL);
assert_binary_blobs_comparison(&expected);
/* non-binary to binary blob */
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
bin, NULL, nonbin, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_binary_blobs_comparison(&expected);
/*
* repeat with FORCE_TEXT
*/
opts.flags |= GIT_DIFF_FORCE_TEXT;
quick_diff_blob_to_str(bin, NULL, bin_content, bin_len, NULL);
assert_identical_blobs_comparison(&expected);
quick_diff_blob_to_str(nonbin, NULL, bin_content, bin_len, NULL);
assert_one_modified_with_lines(&expected, 4);
quick_diff_blob_to_str(bin, NULL, nonbin_content, nonbin_len, NULL);
assert_one_modified_with_lines(&expected, 4);
memset(&expected, 0, sizeof(expected));
cl_git_pass(git_diff_blobs(
bin, NULL, nonbin, NULL, &opts,
diff_file_cb, diff_binary_cb, diff_hunk_cb, diff_line_cb, &expected));
assert_one_modified_with_lines(&expected, 4);
/* cleanup */
git_blob_free(bin);
git_blob_free(nonbin);
}