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diff::binary tests: empty diff when forced binary

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Ensure that even when we're forcing a binary diff that we do not
assume that there *is* a diff.  There should be an empty diff for
no change.
This commit is contained in:
Edward Thomson 2015-06-24 11:39:59 -04:00
parent 76633215d1
commit ba8fb7c46a
1 changed files with 30 additions and 0 deletions
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30
tests/diff/binary.c
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@ -269,6 +269,36 @@ void test_diff_binary__delta_append(void)
git_index_free(index);
}
void test_diff_binary__empty_for_no_diff(void)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
git_oid id;
git_commit *commit;
git_tree *tree;
git_diff *diff;
git_buf actual = GIT_BUF_INIT;
const char *expected = "";
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_oid_fromstr(&id, "19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13"));
cl_git_pass(git_commit_lookup(&commit, repo, &id));
cl_git_pass(git_commit_tree(&tree, commit));
cl_git_pass(git_diff_tree_to_tree(&diff, repo, tree, tree, &opts));
cl_git_pass(git_diff_print(diff, GIT_DIFF_FORMAT_PATCH, git_diff_print_callback__to_buf, &actual));
cl_assert_equal_s("", actual.ptr);
git_buf_free(&actual);
git_diff_free(diff);
git_commit_free(commit);
git_tree_free(tree);
}
void test_diff_binary__index_to_workdir(void)
{
git_index *index;