Add tests for error behaviour in internal dev. container functions

Issue #33

tests/lib/CMakeLists.txt

@@ -29,7 +29,7 @@ set(TESTS_STUBONLY test_profiler_op)
 # implementation
 set(TESTS_OPT test_profiler test_platforms test_buffer test_devquery
     test_context test_event test_program test_image test_sampler
-    test_kernel test_queue test_device test_devsel)
+    test_kernel test_queue test_device test_devsel test_errors)
 
 # Complete set of tests
 set(TESTS ${TESTS_STUBONLY} ${TESTS_OPT})

tests/lib/test_errors.c

@@ -0,0 +1,91 @@
+/*
+ * This file is part of cf4ocl (C Framework for OpenCL).
+ *
+ * cf4ocl 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * cf4ocl 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 cf4ocl. If not, see <http://www.gnu.org/licenses/>.
+ * */
+
+/**
+ * @internal
+ *
+ * @file
+ * Tests if errors occur when they should when using cf4ocl.
+ *
+ * @author Nuno Fachada
+ * @date 2019
+ * @copyright [GNU General Public License version 3 (GPLv3)](http://www.gnu.org/licenses/gpl.html)
+ * */
+
+#include <cf4ocl2.h>
+#include "test.h"
+#include "_ccl_abstract_dev_container_wrapper.h"
+
+/**
+ * @internal
+ *
+ * @brief Used as a mock function for getting devices in a device container
+ * wrapper.
+ */
+static CCLWrapperInfo * mock_get_devices(
+        CCLDevContainer * devcon, CCLErr ** err) {
+
+    CCL_UNUSED(devcon);
+    g_set_error(err, CCL_ERROR, CL_INVALID_VALUE, "Mock error");
+    return NULL;
+}
+
+/**
+ * @internal
+ *
+ * @brief Tests errors in device container functions.
+ * */
+static void device_container_test() {
+
+    /* Test variables. */
+    CCLDevContainer mock_devcon = { { 0, NULL, NULL, 0 }, 0, NULL };
+    CCLDevice * dev;
+    CCLErr * err = NULL;
+
+    /* Try and get device from mock device container. */
+    dev = ccl_dev_container_get_device(
+        &mock_devcon, mock_get_devices, 0, &err);
+
+    /* Check that dev is NULL */
+    g_assert(dev == NULL);
+
+    /* Check the error domain and code, and clear the error. */
+    g_assert_error(err, CCL_ERROR, CL_INVALID_VALUE);
+    g_clear_error(&err);
+
+    /* Confirm that no memory was allocated for wrappers. */
+    g_assert(ccl_wrapper_memcheck());
+}
+
+/**
+ * @internal
+ *
+ * @brief Main function.
+ * @param[in] argc Number of command line arguments.
+ * @param[in] argv Command line arguments.
+ * @return Result of test run.
+ * */
+int main(int argc, char ** argv) {
+
+    g_test_init(&argc, &argv, NULL);
+
+    g_test_add_func(
+        "/wrappers/errors/device-container",
+        device_container_test);
+
+    return g_test_run();
+}