checkout: add test coverage of dirs and subtrees

tests-clar/checkout/tree.c

@@ -4,26 +4,66 @@
 #include "repository.h"
 
 static git_repository *g_repo;
+static git_checkout_opts g_opts;
+static git_object *g_object;
 
 void test_checkout_tree__initialize(void)
 {
 	g_repo = cl_git_sandbox_init("testrepo");
+
+	memset(&g_opts, 0, sizeof(g_opts));
+	g_opts.checkout_strategy = GIT_CHECKOUT_CREATE_MISSING;
 }
 
 void test_checkout_tree__cleanup(void)
 {
+	git_object_free(g_object);
+
 	cl_git_sandbox_cleanup();
 }
 
 void test_checkout_tree__cannot_checkout_a_non_treeish(void)
 {
-	git_oid oid;
-	git_blob *blob;
+	/* blob */
+	cl_git_pass(git_revparse_single(&g_object, g_repo, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));
+
+	cl_git_fail(git_checkout_tree(g_repo, g_object, NULL, NULL));
+}
+
+void test_checkout_tree__can_checkout_a_subdirectory_from_a_commit(void)
+{
+	git_strarray paths;
+	char *entries[] = { "ab/de/" };
+
+	paths.strings = entries;
+	paths.count = 1;
+	g_opts.paths = &paths;
+
+	cl_git_pass(git_revparse_single(&g_object, g_repo, "subtrees"));
+
+	cl_assert_equal_i(false, git_path_isdir("./testrepo/ab/"));
+
+	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts, NULL));
+
+	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/2.txt"));
+	cl_assert_equal_i(true, git_path_isfile("./testrepo/ab/de/fgh/1.txt"));
+}
+
+void test_checkout_tree__can_checkout_a_subdirectory_from_a_subtree(void)
+{
+	git_strarray paths;
+	char *entries[] = { "de/" };
+
+	paths.strings = entries;
+	paths.count = 1;
+	g_opts.paths = &paths;
+
+	cl_git_pass(git_revparse_single(&g_object, g_repo, "subtrees:ab"));
 
-	cl_git_pass(git_oid_fromstr(&oid, "a71586c1dfe8a71c6cbf6c129f404c5642ff31bd"));
-	cl_git_pass(git_blob_lookup(&blob, g_repo, &oid));
+	cl_assert_equal_i(false, git_path_isdir("./testrepo/de/"));
 
-	cl_git_fail(git_checkout_tree(g_repo, (git_object *)blob, NULL, NULL));
+	cl_git_pass(git_checkout_tree(g_repo, g_object, &g_opts, NULL));
 
-	git_blob_free(blob);
+	cl_assert_equal_i(true, git_path_isfile("./testrepo/de/2.txt"));
+	cl_assert_equal_i(true, git_path_isfile("./testrepo/de/fgh/1.txt"));
 }