tests/refs/branches/create.c

   1 #include "clar_libgit2.h"
   2 #include "refs.h"
   3 #include "path.h"
   4
   5 static git_repository *repo;
   6 static git_commit *target;
   7 static git_reference *branch;
   8
   9 void test_refs_branches_create__initialize(void)
  10 {
  11         repo = cl_git_sandbox_init("testrepo.git");
  12         branch = NULL;
  13         target = NULL;
  14 }
  15
  16 void test_refs_branches_create__cleanup(void)
  17 {
  18         git_reference_free(branch);
  19         branch = NULL;
  20
  21         git_commit_free(target);
  22         target = NULL;
  23
  24         cl_git_sandbox_cleanup();
  25         repo = NULL;
  26 }
  27
  28 static void retrieve_target_from_oid(git_commit **out, git_repository *repo, const char *sha)
  29 {
  30         git_object *obj;
  31
  32         cl_git_pass(git_revparse_single(&obj, repo, sha));
  33         cl_git_pass(git_commit_lookup(out, repo, git_object_id(obj)));
  34         git_object_free(obj);
  35 }
  36
  37 static void retrieve_known_commit(git_commit **commit, git_repository *repo)
  38 {
  39         retrieve_target_from_oid(commit, repo, "e90810b8df3");
  40 }
  41
  42 #define NEW_BRANCH_NAME "new-branch-on-the-block"
  43
  44 void test_refs_branches_create__can_create_a_local_branch(void)
  45 {
  46         retrieve_known_commit(&target, repo);
  47
  48         cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, 0));
  49         cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
  50 }
  51
  52 void test_refs_branches_create__can_not_create_a_branch_if_its_name_collide_with_an_existing_one(void)
  53 {
  54         retrieve_known_commit(&target, repo);
  55
  56         cl_assert_equal_i(GIT_EEXISTS, git_branch_create(&branch, repo, "br2", target, 0));
  57 }
  58
  59 void test_refs_branches_create__can_force_create_over_an_existing_branch(void)
  60 {
  61         retrieve_known_commit(&target, repo);
  62
  63         cl_git_pass(git_branch_create(&branch, repo, "br2", target, 1));
  64         cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
  65         cl_assert_equal_s("refs/heads/br2", git_reference_name(branch));
  66 }
  67
  68 void test_refs_branches_create__cannot_force_create_over_current_branch(void)
  69 {
  70         const git_oid *oid;
  71         git_reference *branch2;
  72         retrieve_known_commit(&target, repo);
  73
  74         cl_git_pass(git_branch_lookup(&branch2, repo, "master", GIT_BRANCH_LOCAL));
  75         cl_assert_equal_s("refs/heads/master", git_reference_name(branch2));
  76         cl_assert_equal_i(true, git_branch_is_head(branch2));
  77         oid = git_reference_target(branch2);
  78
  79         cl_git_fail_with(-1, git_branch_create(&branch, repo, "master", target, 1));
  80         branch = NULL;
  81         cl_git_pass(git_branch_lookup(&branch, repo, "master", GIT_BRANCH_LOCAL));
  82         cl_assert_equal_s("refs/heads/master", git_reference_name(branch));
  83         cl_git_pass(git_oid_cmp(git_reference_target(branch), oid));
  84         git_reference_free(branch2);
  85 }
  86
  87 void test_refs_branches_create__creating_a_branch_with_an_invalid_name_returns_EINVALIDSPEC(void)
  88 {
  89         retrieve_known_commit(&target, repo);
  90
  91         cl_assert_equal_i(GIT_EINVALIDSPEC,
  92                 git_branch_create(&branch, repo, "inv@{id", target, 0));
  93 }
  94
  95 void test_refs_branches_create__default_reflog_message(void)
  96 {
  97         git_reflog *log;
  98         git_buf buf = GIT_BUF_INIT;
  99         const git_reflog_entry *entry;
 100         git_signature *sig;
 101         git_config *cfg;
 102
 103         cl_git_pass(git_repository_config(&cfg, repo));
 104         cl_git_pass(git_config_set_string(cfg, "user.name", "Foo Bar"));
 105         cl_git_pass(git_config_set_string(cfg, "user.email", "foo@example.com"));
 106         git_config_free(cfg);
 107
 108         cl_git_pass(git_signature_default(&sig, repo));
 109
 110         retrieve_known_commit(&target, repo);
 111         cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false));
 112         cl_git_pass(git_reflog_read(&log, repo, "refs/heads/" NEW_BRANCH_NAME));
 113
 114         entry = git_reflog_entry_byindex(log, 0);
 115         cl_git_pass(git_buf_printf(&buf, "branch: Created from %s", git_oid_tostr_s(git_commit_id(target))));
 116         cl_assert_equal_s(git_buf_cstr(&buf), git_reflog_entry_message(entry));
 117         cl_assert_equal_s(sig->email, git_reflog_entry_committer(entry)->email);
 118
 119         git_buf_free(&buf);
 120         git_reflog_free(log);
 121         git_signature_free(sig);
 122 }
 123
 124 static void assert_branch_matches_name(
 125         const char *expected, const char *lookup_as)
 126 {
 127         git_reference *ref;
 128         git_buf b = GIT_BUF_INIT;
 129
 130         cl_git_pass(git_branch_lookup(&ref, repo, lookup_as, GIT_BRANCH_LOCAL));
 131
 132         cl_git_pass(git_buf_sets(&b, "refs/heads/"));
 133         cl_git_pass(git_buf_puts(&b, expected));
 134         cl_assert_equal_s(b.ptr, git_reference_name(ref));
 135
 136         cl_git_pass(
 137                 git_oid_cmp(git_reference_target(ref), git_commit_id(target)));
 138
 139         git_reference_free(ref);
 140         git_buf_free(&b);
 141 }
 142
 143 void test_refs_branches_create__can_create_branch_with_unicode(void)
 144 {
 145         const char *nfc = "\xC3\x85\x73\x74\x72\xC3\xB6\x6D";
 146         const char *nfd = "\x41\xCC\x8A\x73\x74\x72\x6F\xCC\x88\x6D";
 147         const char *emoji = "\xF0\x9F\x8D\xB7";
 148         const char *names[] = { nfc, nfd, emoji };
 149         const char *alt[] = { nfd, nfc, NULL };
 150         const char *expected[] = { nfc, nfd, emoji };
 151         unsigned int i;
 152         bool fs_decompose_unicode =
 153                 git_path_does_fs_decompose_unicode(git_repository_path(repo));
 154
 155         retrieve_known_commit(&target, repo);
 156
 157         if (cl_repo_get_bool(repo, "core.precomposeunicode"))
 158                 expected[1] = nfc;
 159         /* test decomp. because not all Mac filesystems decompose unicode */
 160         else if (fs_decompose_unicode)
 161                 expected[0] = nfd;
 162
 163         for (i = 0; i < ARRAY_SIZE(names); ++i) {
 164                 const char *name;
 165                 cl_git_pass(git_branch_create(
 166                         &branch, repo, names[i], target, 0));
 167                 cl_git_pass(git_oid_cmp(
 168                         git_reference_target(branch), git_commit_id(target)));
 169
 170                 cl_git_pass(git_branch_name(&name, branch));
 171                 cl_assert_equal_s(expected[i], name);
 172                 assert_branch_matches_name(expected[i], names[i]);
 173                 if (fs_decompose_unicode && alt[i])
 174                         assert_branch_matches_name(expected[i], alt[i]);
 175
 176                 cl_git_pass(git_branch_delete(branch));
 177                 git_reference_free(branch);
 178                 branch = NULL;
 179         }
 180 }
 181
 182 /**
 183  * Verify that we can create a branch with a name that matches the
 184  * namespace of a previously delete branch.
 185  *
 186  * git branch level_one/level_two
 187  * git branch -D level_one/level_two
 188  * git branch level_one
 189  *
 190  * We expect the delete to have deleted the files:
 191  *     ".git/refs/heads/level_one/level_two"
 192  *     ".git/logs/refs/heads/level_one/level_two"
 193  * It may or may not have deleted the (now empty)
 194  * containing directories.  To match git.git behavior,
 195  * the second create needs to implicilty delete the
 196  * directories and create the new files.
 197  *     "refs/heads/level_one"
 198  *     "logs/refs/heads/level_one"
 199  *
 200  * We should not fail to create the branch or its
 201  * reflog because of an obsolete namespace container
 202  * directory.
 203  */
 204 void test_refs_branches_create__name_vs_namespace(void)
 205 {
 206         const char * name;
 207         struct item {
 208                 const char *first;
 209                 const char *second;
 210         };
 211         static const struct item item[] = {
 212                 { "level_one/level_two", "level_one" },
 213                 { "a/b/c/d/e",           "a/b/c/d" },
 214                 { "ss/tt/uu/vv/ww",      "ss" },
 215                 /* And one test case that is deeper. */
 216                 { "xx1/xx2/xx3/xx4",     "xx1/xx2/xx3/xx4/xx5/xx6" },
 217                 { NULL, NULL },
 218         };
 219         const struct item *p;
 220
 221         retrieve_known_commit(&target, repo);
 222
 223         for (p=item; p->first; p++) {
 224                 cl_git_pass(git_branch_create(&branch, repo, p->first, target, 0));
 225                 cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
 226                 cl_git_pass(git_branch_name(&name, branch));
 227                 cl_assert_equal_s(name, p->first);
 228
 229                 cl_git_pass(git_branch_delete(branch));
 230                 git_reference_free(branch);
 231                 branch = NULL;
 232
 233                 cl_git_pass(git_branch_create(&branch, repo, p->second, target, 0));
 234                 git_reference_free(branch);
 235                 branch = NULL;
 236         }
 237 }
 238
 239 /**
 240  * We still need to fail if part of the namespace is
 241  * still in use.
 242  */
 243 void test_refs_branches_create__name_vs_namespace_fail(void)
 244 {
 245         const char * name;
 246         struct item {
 247                 const char *first;
 248                 const char *first_alternate;
 249                 const char *second;
 250         };
 251         static const struct item item[] = {
 252                 { "level_one/level_two", "level_one/alternate", "level_one" },
 253                 { "a/b/c/d/e",           "a/b/c/d/alternate",   "a/b/c/d" },
 254                 { "ss/tt/uu/vv/ww",      "ss/alternate",        "ss" },
 255                 { NULL, NULL, NULL },
 256         };
 257         const struct item *p;
 258
 259         retrieve_known_commit(&target, repo);
 260
 261         for (p=item; p->first; p++) {
 262                 cl_git_pass(git_branch_create(&branch, repo, p->first, target, 0));
 263                 cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
 264                 cl_git_pass(git_branch_name(&name, branch));
 265                 cl_assert_equal_s(name, p->first);
 266
 267                 cl_git_pass(git_branch_delete(branch));
 268                 git_reference_free(branch);
 269                 branch = NULL;
 270
 271                 cl_git_pass(git_branch_create(&branch, repo, p->first_alternate, target, 0));
 272                 cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
 273                 cl_git_pass(git_branch_name(&name, branch));
 274                 cl_assert_equal_s(name, p->first_alternate);
 275
 276                 /* we do not delete the alternate. */
 277                 git_reference_free(branch);
 278                 branch = NULL;
 279
 280                 cl_git_fail(git_branch_create(&branch, repo, p->second, target, 0));
 281                 git_reference_free(branch);
 282                 branch = NULL;
 283         }
 284 }