Local fetch: add tests

tests-clar/network/fetchlocal.c

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+#include "clar_libgit2.h"
+
+#include "buffer.h"
+#include "path.h"
+#include "remote.h"
+
+static void build_local_file_url(git_buf *out, const char *fixture)
+{
+	const char *in_buf;
+
+	git_buf path_buf = GIT_BUF_INIT;
+
+	cl_git_pass(git_path_prettify_dir(&path_buf, fixture, NULL));
+	cl_git_pass(git_buf_puts(out, "file://"));
+
+#ifdef _MSC_VER
+	/*
+	 * A FILE uri matches the following format: file://[host]/path
+	 * where "host" can be empty and "path" is an absolute path to the resource.
+	 * 
+	 * In this test, no hostname is used, but we have to ensure the leading triple slashes:
+	 * 
+	 * *nix: file:///usr/home/...
+	 * Windows: file:///C:/Users/...
+	 */
+	cl_git_pass(git_buf_putc(out, '/'));
+#endif
+
+	in_buf = git_buf_cstr(&path_buf);
+
+	/*
+	 * A very hacky Url encoding that only takes care of escaping the spaces
+	 */
+	while (*in_buf) {
+		if (*in_buf == ' ')
+			cl_git_pass(git_buf_puts(out, "%20"));
+		else
+			cl_git_pass(git_buf_putc(out, *in_buf));
+
+		in_buf++;
+	}
+
+	git_buf_free(&path_buf);
+}
+
+static void transfer_cb(const git_transfer_progress *stats, void *payload)
+{
+	int *callcount = (int*)payload;
+	GIT_UNUSED(stats);
+	(*callcount)++;
+}
+
+void test_network_fetchlocal__complete(void)
+{
+	git_buf url = GIT_BUF_INIT;
+	git_repository *repo;
+	git_remote *origin;
+	int callcount = 0;
+	git_strarray refnames = {0};
+
+	build_local_file_url(&url, cl_fixture("testrepo.git"));
+	cl_git_pass(git_repository_init(&repo, "foo", true));
+
+	cl_git_pass(git_remote_add(&origin, repo, GIT_REMOTE_ORIGIN, git_buf_cstr(&url)));
+	cl_git_pass(git_remote_connect(origin, GIT_DIR_FETCH));
+	cl_git_pass(git_remote_download(origin, transfer_cb, &callcount));
+	cl_git_pass(git_remote_update_tips(origin));
+
+	cl_git_pass(git_reference_list(&refnames, repo, GIT_REF_LISTALL));
+	cl_assert_equal_i(18, refnames.count);
+	cl_assert(callcount > 0);
+
+	git_strarray_free(&refnames);
+	git_remote_free(origin);
+	git_repository_free(repo);
+}
+
+void test_network_fetchlocal__partial(void)
+{
+	git_repository *repo = cl_git_sandbox_init("partial-testrepo");
+	git_buf url = GIT_BUF_INIT;
+	git_remote *origin;
+	int callcount = 0;
+	git_strarray refnames = {0};
+
+	cl_git_pass(git_reference_list(&refnames, repo, GIT_REF_LISTALL));
+	cl_assert_equal_i(1, refnames.count);
+
+	build_local_file_url(&url, cl_fixture("testrepo.git"));
+	cl_git_pass(git_remote_add(&origin, repo, GIT_REMOTE_ORIGIN, git_buf_cstr(&url)));
+	cl_git_pass(git_remote_connect(origin, GIT_DIR_FETCH));
+	cl_git_pass(git_remote_download(origin, transfer_cb, &callcount));
+	cl_git_pass(git_remote_update_tips(origin));
+
+	cl_git_pass(git_reference_list(&refnames, repo, GIT_REF_LISTALL));
+	cl_assert_equal_i(19, refnames.count); /* 18 remote + 1 local */
+	cl_assert(callcount > 0);
+
+	git_strarray_free(&refnames);
+	git_remote_free(origin);
+
+	cl_git_sandbox_cleanup();
+}

tests-clar/resources/partial-testrepo/.gitted/HEAD

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+ref: refs/heads/dir

tests-clar/resources/partial-testrepo/.gitted/config

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+[core]
+	repositoryformatversion = 0
+	filemode = true
+	bare = false
+	logallrefupdates = true
+	ignorecase = true
+[branch "dir"]

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tests-clar/resources/partial-testrepo/.gitted/refs/heads/dir

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