[PATCH spice-gtk 3/3] Add tests for usb-acl-helper

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---
 tests/Makefile.am       |  15 ++--
 tests/mock-acl-helper.c |  94 +++++++++++++++++++++++
 tests/usb-acl-helper.c  | 197 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 301 insertions(+), 5 deletions(-)
 create mode 100644 tests/mock-acl-helper.c
 create mode 100644 tests/usb-acl-helper.c

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 19c02b6..24d45c9 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -1,18 +1,21 @@
 NULL =
 
-noinst_PROGRAMS =				\
-	coroutine				\
+TESTS = coroutine				\
 	util					\
 	session					\
+	usb-acl-helper				\
 	$(NULL)
 
 if WITH_PHODAV
-noinst_PROGRAMS += pipe
+TESTS += pipe
 endif
 
-TESTS = $(noinst_PROGRAMS)
+noinst_PROGRAMS = $(TESTS) \
+		  mock-acl-helper \
+		  $(NULL)
 
 AM_CPPFLAGS =					\
+	$(COMMON_CFLAGS)			\
 	$(GIO_CFLAGS)				\
 	-I$(top_srcdir)/src			\
 	-I$(top_builddir)/src			\
@@ -29,6 +32,8 @@ util_SOURCES = util.c
 coroutine_SOURCES = coroutine.c
 session_SOURCES = session.c
 pipe_SOURCES = pipe.c
-
+usb_acl_helper_SOURCES = usb-acl-helper.c
+usb_acl_helper_CFLAGS = -DTESTDIR=\"$(abs_builddir)\"
+mock_acl_helper_SOURCES = mock-acl-helper.c
 
 -include $(top_srcdir)/git.mk
diff --git a/tests/mock-acl-helper.c b/tests/mock-acl-helper.c
new file mode 100644
index 0000000..11268cb
--- /dev/null
+++ b/tests/mock-acl-helper.c
@@ -0,0 +1,94 @@
+/*
+   Copyright (C) 2016 Red Hat, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 2 of the License,
+   or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "config.h"
+
+#include <stdio.h>
+#include <glib.h>
+#include <gio/gunixinputstream.h>
+
+static int exit_status;
+static int busnum, devnum;
+static char path[PATH_MAX];
+static GMainLoop *loop;
+static GDataInputStream *stdin_stream;
+
+static void cleanup(void)
+{
+    if (loop)
+        g_main_loop_quit(loop);
+}
+
+
+static void stdin_read_complete(GObject *src, GAsyncResult *res, gpointer data)
+{
+    char *s = NULL;
+    const char *response = NULL;
+    GError *err = NULL;
+    gsize len;
+
+    s = g_data_input_stream_read_line_finish(G_DATA_INPUT_STREAM(src), res,
+                                             &len, &err);
+
+    /* exit the program to return an early EOF to the caller */
+    if (g_getenv("TEST_EOF"))
+        goto done;
+
+    /* Don't return any response, but continue running to simulate a
+     * unresponsive binary */
+    if (g_getenv("TEST_NORESPONSE"))
+        return;
+
+    /* specify a particular resonse to be returned to the caller */
+    response = g_getenv("TEST_RESPONSE");
+    if (!response)
+        response = "SUCCESS";
+
+    fprintf(stdout, "%s\n", response);
+    fflush(stdout);
+
+done:
+    g_clear_error(&err);
+    g_free(s);
+    cleanup();
+}
+
+int main(void)
+{
+    GInputStream *stdin_unix_stream;
+
+#if !GLIB_CHECK_VERSION(2,36,0)
+    g_type_init();
+#endif
+
+    loop = g_main_loop_new(NULL, FALSE);
+
+    stdin_unix_stream = g_unix_input_stream_new(STDIN_FILENO, 0);
+    stdin_stream = g_data_input_stream_new(stdin_unix_stream);
+    g_data_input_stream_set_newline_type(stdin_stream,
+                                         G_DATA_STREAM_NEWLINE_TYPE_LF);
+    g_clear_object(&stdin_unix_stream);
+    g_data_input_stream_read_line_async(stdin_stream, G_PRIORITY_DEFAULT, NULL,
+                                        stdin_read_complete, NULL);
+
+    g_main_loop_run(loop);
+
+    g_object_unref(stdin_stream);
+    g_main_loop_unref(loop);
+
+    return exit_status;
+}
diff --git a/tests/usb-acl-helper.c b/tests/usb-acl-helper.c
new file mode 100644
index 0000000..8538751
--- /dev/null
+++ b/tests/usb-acl-helper.c
@@ -0,0 +1,197 @@
+/*
+   Copyright (C) 2016 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <glib.h>
+#include "usb-acl-helper.h"
+
+typedef struct {
+    SpiceUsbAclHelper *acl_helper;
+    GCancellable *cancellable;
+    GMainLoop *loop;
+} Fixture;
+
+gboolean cancel_test(gpointer user_data)
+{
+    Fixture *fixture = user_data;
+    g_cancellable_cancel(fixture->cancellable);
+    g_main_loop_quit(fixture->loop);
+    return G_SOURCE_REMOVE;
+}
+
+static void data_setup(Fixture *fixture, gconstpointer user_data)
+{
+    fixture->cancellable = g_cancellable_new();
+    fixture->acl_helper = g_object_new(SPICE_TYPE_USB_ACL_HELPER,
+                                       "acl-helper-path", TESTDIR"/mock-acl-helper",
+                                       NULL);
+    fixture->loop = g_main_loop_new(NULL, FALSE);
+    g_timeout_add_seconds(2, cancel_test, fixture);
+}
+
+static void data_teardown(Fixture *fixture, gconstpointer user_data)
+{
+    g_object_unref(fixture->cancellable);
+    g_object_unref(fixture->acl_helper);
+    g_main_loop_unref(fixture->loop);
+}
+
+
+static void success_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    if (!spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error))
+        g_error("%s", error->message);
+    g_main_loop_quit(f->loop);
+}
+
+static void test_acl_helper_success(Fixture *fixture, gconstpointer user_data)
+{
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, success_cb, fixture);
+    g_main_loop_run(fixture->loop);
+}
+
+static void spawn_fail_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    gboolean success = spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error);
+    g_assert(!success);
+    g_assert (error->domain == G_SPAWN_ERROR);
+    g_main_loop_quit(f->loop);
+}
+
+static void test_acl_helper_spawn_fail(Fixture *fixture, gconstpointer user_data)
+{
+    g_object_set(fixture->acl_helper, "acl-helper-path", "does-not-exist", NULL);
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, spawn_fail_cb,
+                                  fixture);
+    g_main_loop_run(fixture->loop);
+}
+
+static void early_eof_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    gboolean success = spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error);
+    g_assert(!success);
+    g_assert(error->domain == SPICE_CLIENT_ERROR);
+    g_assert(error->code == SPICE_CLIENT_ERROR_FAILED);
+    g_main_loop_quit(f->loop);
+}
+
+/* helper sends EOF before sending a response */
+static void test_acl_helper_early_eof(Fixture *fixture, gconstpointer user_data)
+{
+    g_setenv("TEST_EOF", "1", TRUE);
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, early_eof_cb, fixture);
+    g_main_loop_run(fixture->loop);
+    g_unsetenv("TEST_EOF");
+}
+
+static void helper_canceled_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    gboolean success = spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error);
+    g_assert(!success);
+    g_assert(error->domain == G_IO_ERROR);
+    g_assert(error->code == G_IO_ERROR_CANCELLED);
+    g_main_loop_quit(f->loop);
+}
+
+static void test_acl_helper_helper_canceled(Fixture *fixture, gconstpointer user_data)
+{
+    g_setenv("TEST_RESPONSE", "CANCELED", TRUE);
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, helper_canceled_cb, fixture);
+    g_main_loop_run(fixture->loop);
+    g_unsetenv("TEST_RESPONSE");
+}
+
+static void helper_error_response_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    gboolean success = spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error);
+    g_assert(!success);
+    g_assert(error->domain == SPICE_CLIENT_ERROR);
+    g_assert(error->code == SPICE_CLIENT_ERROR_FAILED);
+    g_main_loop_quit(f->loop);
+}
+
+static void test_acl_helper_error_response(Fixture *fixture, gconstpointer user_data)
+{
+    g_setenv("TEST_RESPONSE", "Not authorized", TRUE);
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, helper_error_response_cb, fixture);
+    g_main_loop_run(fixture->loop);
+    g_unsetenv("TEST_RESPONSE");
+}
+
+static void client_canceled_cb(GObject *source, GAsyncResult *result, gpointer user_data)
+{
+    Fixture *f = user_data;
+    GError *error = NULL;
+    gboolean success = spice_usb_acl_helper_open_acl_finish(SPICE_USB_ACL_HELPER(source), result, &error);
+    g_assert(!success);
+    g_assert(error->domain == G_IO_ERROR);
+    g_assert(error->code == G_IO_ERROR_CANCELLED);
+    g_main_loop_quit(f->loop);
+}
+
+static void test_acl_helper_client_canceled(Fixture *fixture, gconstpointer user_data)
+{
+    /* ensure that the acl-helper does not have respond, so we can cancel the
+     * task before we get a response from the helper binary */
+    g_setenv("TEST_NORESPONSE", "1", TRUE);
+    spice_usb_acl_helper_open_acl(fixture->acl_helper, 1, 1,
+                                  fixture->cancellable, client_canceled_cb, fixture);
+    g_idle_add(cancel_test, fixture);
+    g_main_loop_run(fixture->loop);
+    g_unsetenv("TEST_NORESPONSE");
+}
+
+int main(int argc, char* argv[])
+{
+    g_test_init(&argc, &argv, NULL);
+
+    g_test_add("/usb-acl-helper/success", Fixture, NULL,
+               data_setup, test_acl_helper_success, data_teardown);
+    g_test_add("/usb-acl-helper/spawn-fail", Fixture, NULL,
+               data_setup, test_acl_helper_spawn_fail, data_teardown);
+    g_test_add("/usb-acl-helper/early-eof", Fixture, NULL,
+               data_setup, test_acl_helper_early_eof, data_teardown);
+    g_test_add("/usb-acl-helper/helper-canceled", Fixture, NULL,
+               data_setup, test_acl_helper_helper_canceled, data_teardown);
+    g_test_add("/usb-acl-helper/helper-error", Fixture, NULL,
+               data_setup, test_acl_helper_error_response, data_teardown);
+    g_test_add("/usb-acl-helper/client-canceled", Fixture, NULL,
+               data_setup, test_acl_helper_client_canceled, data_teardown);
+    /* additional possible test cases:
+     * - unable to set nonblocking flag on io channel?
+     * - unable to write bus number to helper binary
+     * - unable to flush channel
+     * - read_line from helper binary returns something other than G_IO_STATUS_NORMAL
+     */
+
+    return g_test_run ();
+}
+
-- 
2.4.3

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