tree: Add git_tree_frompath() which, given a relative path to a tree entry, retrieves the tree object containing this tree entry

1 files changed, 76 insertions, 0 deletions

diff --git a/tests-clay/object/tree/frompath.c b/tests-clay/object/tree/frompath.c
new file mode 100644
index 000000000..33a76e8aa
--- /dev/null
+++ b/tests-clay/object/tree/frompath.c
@@ -0,0 +1,76 @@
+#include "clay_libgit2.h"
+
+#define REPOSITORY_FOLDER "testrepo.git"
+
+static git_repository *repo;
+const char *tree_with_subtrees_oid = "ae90f12eea699729ed24555e40b9fd669da12a12";
+static	git_tree *tree;
+
+void test_object_tree_frompath__initialize(void)
+{
+	git_oid id;
+
+	cl_fixture_sandbox(REPOSITORY_FOLDER);
+	cl_git_pass(git_repository_open(&repo, REPOSITORY_FOLDER));
+	cl_assert(repo != NULL);
+
+	cl_git_pass(git_oid_fromstr(&id, tree_with_subtrees_oid));
+	cl_git_pass(git_tree_lookup(&tree, repo, &id));
+	cl_assert(tree != NULL);
+}
+
+void test_object_tree_frompath__cleanup(void)
+{
+	git_tree_close(tree);
+	git_repository_free(repo);
+}
+
+static void assert_tree_from_path(git_tree *root, const char *path, git_error expected_result, const char *expected_raw_oid)
+{
+	git_tree *containing_tree = NULL;
+
+	cl_assert(git_tree_frompath(&containing_tree, root, path) == expected_result);
+	
+	if (containing_tree == NULL && expected_result != GIT_SUCCESS)
+		return;
+	
+	cl_assert(containing_tree != NULL && expected_result == GIT_SUCCESS);
+
+	cl_assert(git_oid_streq(git_object_id((const git_object *)containing_tree), expected_raw_oid) == GIT_SUCCESS);
+
+	git_tree_close(containing_tree);
+}
+
+void test_object_tree_frompath__retrieve_tree_from_path_to_treeentry(void)
+{
+	/* Will return self if given a one path segment... */
+	assert_tree_from_path(tree, "README", GIT_SUCCESS, tree_with_subtrees_oid);
+	
+	/* ...even one that lead to a non existent tree entry. */
+	assert_tree_from_path(tree, "i-do-not-exist.txt", GIT_SUCCESS, tree_with_subtrees_oid);
+	
+	/* Will return fgh tree oid given this following path... */
+	assert_tree_from_path(tree, "ab/de/fgh/1.txt", GIT_SUCCESS, "3259a6bd5b57fb9c1281bb7ed3167b50f224cb54");
+	
+	/* ... and ab tree oid given this one. */
+	assert_tree_from_path(tree, "ab/de", GIT_SUCCESS, "f1425cef211cc08caa31e7b545ffb232acb098c3");
+
+	/* Will succeed if given a valid path which leads to a tree entry which doesn't exist */
+	assert_tree_from_path(tree, "ab/de/fgh/i-do-not-exist.txt", GIT_SUCCESS, "3259a6bd5b57fb9c1281bb7ed3167b50f224cb54");
+}
+
+void test_object_tree_frompath__fail_when_processing_an_unknown_tree_segment(void)
+{
+	assert_tree_from_path(tree, "nope/de/fgh/1.txt", GIT_ENOTFOUND, NULL);
+	assert_tree_from_path(tree, "ab/me-neither/fgh/2.txt", GIT_ENOTFOUND, NULL);
+}
+
+void test_object_tree_frompath__fail_when_processing_an_invalid_path(void)
+{
+	assert_tree_from_path(tree, "/", GIT_EINVALIDPATH, NULL);
+	assert_tree_from_path(tree, "/ab", GIT_EINVALIDPATH, NULL);
+	assert_tree_from_path(tree, "/ab/de", GIT_EINVALIDPATH, NULL);
+	assert_tree_from_path(tree, "ab/", GIT_EINVALIDPATH, NULL);
+	assert_tree_from_path(tree, "ab//de", GIT_EINVALIDPATH, NULL);
+	assert_tree_from_path(tree, "ab/de/", GIT_EINVALIDPATH, NULL);
+}