1 files changed, 127 insertions, 0 deletions
diff --git a/tests/libs/zbxsysinfo/linux/system_cpu_switches.c b/tests/libs/zbxsysinfo/linux/system_cpu_switches.c
new file mode 100644
index 00000000000..a4baf68f3b8
--- /dev/null
+++ b/tests/libs/zbxsysinfo/linux/system_cpu_switches.c
@@ -0,0 +1,127 @@
+/*
+** Zabbix
+** Copyright (C) 2001-2022 Zabbix SIA
+**
+** 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, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**/
+
+#include "zbxmocktest.h"
+#include "zbxmockdata.h"
+
+#include "zbxsysinfo.h"
+#include "../../../../src/libs/zbxsysinfo/sysinfo.h"
+#include "zbxnum.h"
+
+void	zbx_mock_test_entry(void **state)
+{
+	/* variables for test infrastructure */
+	zbx_mock_error_t	mock_ret_code;		/* return code from zbx_mock_*() functions */
+	zbx_mock_handle_t	mock_handle;
+	int			expected_ret = 0;
+	const	char		*expected_error_msg = NULL, *expected_ret_str = NULL,
+				*expected_context_switches_str = NULL;
+	zbx_uint64_t		expected_context_switches_count;
+
+	/* variables for calling function-under-test */
+	AGENT_REQUEST	zbx_agent_request;
+	AGENT_RESULT	zbx_agent_result;
+	int		actual_ret;
+
+	ZBX_UNUSED(state);
+
+	/* set up test case values from an external source */
+	/* system_cpu_switches() does not use AGENT_REQUEST argument, only output parameters have to be set up */
+
+	if (ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_out_parameter("expected_ret", &mock_handle)) ||
+			ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_string(mock_handle, &expected_ret_str)))
+	{
+		fail_msg("Cannot get \"expected_ret\" parameter from test case data: %s",
+				zbx_mock_error_string(mock_ret_code));
+	}
+
+	if (0 == strcmp("SYSINFO_RET_OK", expected_ret_str))
+		expected_ret = SYSINFO_RET_OK;
+	else if (0 == strcmp("SYSINFO_RET_FAIL", expected_ret_str))
+		expected_ret = SYSINFO_RET_FAIL;
+	else
+		fail_msg("Invalid \"expected_ret\" parameter in test case data: %s", expected_ret_str);
+
+	if (SYSINFO_RET_OK == expected_ret)
+	{
+		if (ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_out_parameter("ctxt", &mock_handle)) ||
+				ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_string(mock_handle,
+				&expected_context_switches_str)))
+		{
+			fail_msg("Cannot get \"ctxt\" parameter from test case data: %s",
+					zbx_mock_error_string(mock_ret_code));
+		}
+
+		if (SUCCEED != zbx_is_uint64(expected_context_switches_str, &expected_context_switches_count))
+			fail_msg("Invalid \"ctxt\" parameter in test case data: %s", expected_context_switches_str);
+	}
+	else	/* SYSINFO_RET_FAIL */
+	{
+		if (ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_out_parameter("error_msg", &mock_handle)) ||
+				ZBX_MOCK_SUCCESS != (mock_ret_code = zbx_mock_string(mock_handle, &expected_error_msg)))
+		{
+			fail_msg("Cannot get \"error_msg\" parameter from test case data: %s",
+					zbx_mock_error_string(mock_ret_code));
+		}
+	}
+
+	zbx_init_agent_request(&zbx_agent_request);
+	zbx_init_agent_result(&zbx_agent_result);
+
+	/* call the function-under-test */
+	actual_ret = system_cpu_switches(&zbx_agent_request, &zbx_agent_result);
+
+	/* check test results */
+
+	if (expected_ret != actual_ret)
+	{
+		fail_msg("Unexpected return code from system_cpu_switches(): expected %s, got %s",
+				zbx_sysinfo_ret_string(expected_ret), zbx_sysinfo_ret_string(actual_ret));
+	}
+
+	if (SYSINFO_RET_OK == actual_ret)
+	{
+		zbx_uint64_t	*actual_context_switches_count;
+
+		if (NULL == (actual_context_switches_count = ZBX_GET_UI64_RESULT(&zbx_agent_result)))
+			fail_msg("system_cpu_switches() returned no valid number of context switches in AGENT_RESULT.");
+
+		if (expected_context_switches_count != *actual_context_switches_count)
+		{
+			fail_msg("system_cpu_switches() context switches: expected " ZBX_FS_UI64 ", got " ZBX_FS_UI64
+					".", expected_context_switches_count, *actual_context_switches_count);
+		}
+	}
+	else	/* SYSINFO_RET_FAIL */
+	{
+		char	**actual_error_msg;
+
+		if (NULL == (actual_error_msg = ZBX_GET_MSG_RESULT(&zbx_agent_result)) || NULL == *actual_error_msg)
+			fail_msg("system_cpu_switches() returned no valid error message in AGENT_RESULT.");
+
+		if (0 != strcmp(expected_error_msg, *actual_error_msg))
+		{
+			fail_msg("system_cpu_switches() error message: expected \"%s\", got \"%s\"",
+					expected_error_msg, *actual_error_msg);
+		}
+	}
+
+	zbx_free_agent_request(&zbx_agent_request);
+	zbx_free_agent_result(&zbx_agent_result);
+}