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/* SPDX-License-Identifier: LGPL-2.1-only */
/**
* libcgroup googletest for get_next_rule_field()
*
* Copyright (c) 2025 Oracle and/or its affiliates.
* Author: Tom Hromatka <tom.hromatka@oracle.com>
*/
#include <ftw.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "gtest/gtest.h"
#include "libcgroup-internal.h"
class GetNextRuleField : public ::testing::Test {
protected:
};
TEST_F(GetNextRuleField, InvalidParameters)
{
char str[] = "abc123";
int ret;
ret = get_next_rule_field(NULL, str, ARRAY_SIZE(str), false);
ASSERT_EQ(ret, ECGINVAL);
ret = get_next_rule_field(str, NULL, 0, false);
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, FieldLenTooSmall)
{
char *rule = "123456789 abc 123";
char field[9] = { '\0' };
int ret;
ret = get_next_rule_field(rule, field, ARRAY_SIZE(field), false);
ASSERT_STREQ(field, "");
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, FieldLenTooSmallWithQuotes)
{
char *rule = "\"12345678\" abc 123";
char field[] = "7654321";
int ret;
ret = get_next_rule_field(rule, field, ARRAY_SIZE(field), true);
ASSERT_STREQ(field, "7654321");
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, FieldLenTooSmallWithQuotes2)
{
char *rule = "\"1234 5678\" abc 123";
char field[] = "7654321";
int ret;
ret = get_next_rule_field(rule, field, ARRAY_SIZE(field), true);
ASSERT_STREQ(field, "7654321");
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, NoTrailingQuotationMark)
{
char *rule = "\"This is an invalid rule";
char field[] = "hello world";
int ret;
ret = get_next_rule_field(rule, field, ARRAY_SIZE(field), true);
ASSERT_STREQ(field, "hello world");
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, UnexpectedQuotationMark)
{
char *rule = "\"valid but unexpected\"";
char field[] = "goodbye world";
int ret;
ret = get_next_rule_field(rule, field, ARRAY_SIZE(field), false);
ASSERT_STREQ(field, "goodbye world");
ASSERT_EQ(ret, ECGINVAL);
}
TEST_F(GetNextRuleField, UserAndProcess)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char *rule = "WillieMays:/usr/bin/homerun cpu SanFrancisco/Giants/";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "WillieMays:/usr/bin/homerun");
ASSERT_EQ(ret, strlen("WillieMays:/usr/bin/homerun"));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "cpu");
ASSERT_EQ(ret, strlen(" cpu"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "SanFrancisco/Giants/");
ASSERT_EQ(ret, strlen(" SanFrancisco/Giants/"));
}
TEST_F(GetNextRuleField, UserOnly)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char *rule = "LuisAparicio freezer Chicago/WhiteSox";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "LuisAparicio");
ASSERT_EQ(ret, strlen("LuisAparicio"));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "freezer");
ASSERT_EQ(ret, strlen(" freezer"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "Chicago/WhiteSox");
ASSERT_EQ(ret, strlen(" Chicago/WhiteSox"));
}
TEST_F(GetNextRuleField, KeyWithQuotesAndSpaces)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char *rule = "\"Sandy Koufax:/bin/fast ball\" memory Brooklyn/Dodgers";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "Sandy Koufax:/bin/fast ball");
ASSERT_EQ(ret, strlen("\"Sandy Koufax:/bin/fast ball\""));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "memory");
ASSERT_EQ(ret, strlen(" memory"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "Brooklyn/Dodgers");
ASSERT_EQ(ret, strlen(" Brooklyn/Dodgers"));
}
TEST_F(GetNextRuleField, DestinationWithQuotes)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char *rule = "JoshGibson:/homerun/king io,memory,cpu \"Homestead Grays\"";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "JoshGibson:/homerun/king");
ASSERT_EQ(ret, strlen("JoshGibson:/homerun/king"));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "io,memory,cpu");
ASSERT_EQ(ret, strlen(" io,memory,cpu"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "Homestead Grays");
ASSERT_EQ(ret, strlen(" \"Homestead Grays\""));
}
TEST_F(GetNextRuleField, TabsAsDelimiters)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char *rule = "\t\tSatchelPaige\tcpuset\t\"Kansas City/Monarchs\"";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "SatchelPaige");
ASSERT_EQ(ret, strlen("\t\tSatchelPaige"));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "cpuset");
ASSERT_EQ(ret, strlen("\tcpuset"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "Kansas City/Monarchs");
ASSERT_EQ(ret, strlen(" \"Kansas City/Monarchs\""));
}
TEST_F(GetNextRuleField, RuleWithOptions)
{
char key[CGRP_RULE_MAXKEY] = { '\0' };
char controllers[CG_CONTROLLER_MAX] = { '\0' };
char destination[FILENAME_MAX] = { '\0' };
char options[CG_OPTIONS_MAX] = { '\0' };
char *rule = "\t\t\"Roberto Clemente\"\t\tpids\t\"Pittsburgh/Pirates\"\tignore";
char *iter;
int ret;
ret = get_next_rule_field(rule, key, ARRAY_SIZE(key), true);
ASSERT_STREQ(key, "Roberto Clemente");
ASSERT_EQ(ret, strlen("\t\t\"Roberto Clemente\""));
iter = &rule[ret];
ret = get_next_rule_field(iter, controllers, ARRAY_SIZE(controllers), false);
ASSERT_STREQ(controllers, "pids");
ASSERT_EQ(ret, strlen("\t\tpids"));
iter += ret;
ret = get_next_rule_field(iter, destination, ARRAY_SIZE(destination), true);
ASSERT_STREQ(destination, "Pittsburgh/Pirates");
ASSERT_EQ(ret, strlen(" \"Pittsburgh/Pirates\""));
iter += ret;
ret = get_next_rule_field(iter, options, ARRAY_SIZE(options), false);
ASSERT_STREQ(options, "ignore");
ASSERT_EQ(ret, strlen("\tignore"));
}
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