tests: add a test for tag autofollow behaviour

Also tell ctest and valgrind to run libgit2_clar with '-iall' so we
run the network tests in travis.

.travis.yml

@@ -32,7 +32,7 @@ script:
 # Run Tests
 after_script:
  - ctest -V .
- - if [ -f ./libgit2_clar ]; then valgrind --leak-check=full --show-reachable=yes --suppressions=../libgit2_clar.supp ./libgit2_clar; else echo "Skipping valgrind"; fi
+ - if [ -f ./libgit2_clar ]; then valgrind --leak-check=full --show-reachable=yes --suppressions=../libgit2_clar.supp ./libgit2_clar -iall; else echo "Skipping valgrind"; fi
 
 # Only watch the development branch
 branches:

CMakeLists.txt

@@ -213,7 +213,7 @@ IF (BUILD_CLAR)
 	ENDIF ()
 
 	ENABLE_TESTING()
-	ADD_TEST(libgit2_clar libgit2_clar)
+	ADD_TEST(libgit2_clar libgit2_clar -iall)
 ENDIF ()
 
 IF (TAGS)

tests-clar/network/fetch.c

+#include "clar_libgit2.h"
+
+CL_IN_CATEGORY("network")
+
+static git_repository *_repo;
+static int counter;
+
+void test_network_fetch__initialize(void)
+{
+	cl_git_pass(git_repository_init(&_repo, "./fetch", 0));
+}
+
+void test_network_fetch__cleanup(void)
+{
+	git_repository_free(_repo);
+	cl_fixture_cleanup("./fetch");
+}
+
+static int update_tips(const char *refname, const git_oid *a, const git_oid *b, void *data)
+{
+	refname = refname;
+	a = a;
+	b = b;
+	data = data;
+
+	++counter;
+
+	return 0;
+}
+
+static void do_fetch(const char *url, int flag, int n)
+{
+	git_remote *remote;
+	git_off_t bytes;
+	git_indexer_stats stats;
+	git_remote_callbacks callbacks;
+
+	memset(&callbacks, 0, sizeof(git_remote_callbacks));
+	callbacks.update_tips = update_tips;
+	counter = 0;
+
+	cl_git_pass(git_remote_add(&remote, _repo, "test", url));
+	git_remote_set_callbacks(remote, &callbacks);
+	git_remote_set_autotag(remote, flag);
+	cl_git_pass(git_remote_connect(remote, GIT_DIR_FETCH));
+	cl_git_pass(git_remote_download(remote, &bytes, &stats));
+	git_remote_disconnect(remote);
+	cl_git_pass(git_remote_update_tips(remote));
+	cl_assert_equal_i(counter, n);
+}
+
+void test_network_fetch__default_git(void)
+{
+	do_fetch("git://github.com/libgit2/TestGitRepository.git", GIT_REMOTE_DOWNLOAD_TAGS_AUTO, 6);
+}
+
+void test_network_fetch__default_http(void)
+{
+	do_fetch("http://github.com/libgit2/TestGitRepository.git", GIT_REMOTE_DOWNLOAD_TAGS_AUTO, 6);
+}
+
+void test_network_fetch__no_tags_git(void)
+{
+	do_fetch("git://github.com/libgit2/TestGitRepository.git", GIT_REMOTE_DOWNLOAD_TAGS_NONE, 3);
+}
+
+void test_network_fetch__no_tags_http(void)
+{
+	do_fetch("http://github.com/libgit2/TestGitRepository.git", GIT_REMOTE_DOWNLOAD_TAGS_NONE, 3);
+}