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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2022 SAP SE. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "precompiled.hpp"
#include "jvm_io.h"
#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
#include "utilities/ostream.hpp"
#include "utilities/parseInteger.hpp"
#include "testutils.hpp"
#include "unittest.hpp"
template <typename T> const char* type_name();
template <> const char* type_name<uint64_t>() { return "uint64_t"; }
template <> const char* type_name<uint32_t>() { return "uint32_t"; }
template <> const char* type_name<int64_t>() { return "int64_t"; }
template <> const char* type_name<int32_t>() { return "int32_t"; }
//#define LOG(s, ...) LOG_HERE(s, __VA_ARGS__)
#define LOG(s, ...)
template <typename T>
static void do_test_valid(T expected_value, const char* pattern) {
LOG("%s: \"%s\", expect: " UINT64_FORMAT "(" UINT64_FORMAT_X ")", type_name<T>(), pattern,
(uint64_t)expected_value, (uint64_t)expected_value);
T value = 17;
char* end = nullptr;
stringStream ss;
ss.print_raw(pattern);
bool rc = parse_integer(ss.base(), &end, &value);
ASSERT_TRUE(rc);
ASSERT_EQ(value, expected_value);
rc = parse_integer(ss.base(), &value);
ASSERT_TRUE(rc);
ASSERT_EQ(value, expected_value);
// Now test with a trailing pattern.
// parse_memory_size() should return remainder pointer,
// parse_argument_memory_size() should flatly refuse to parse this.
ss.print(":-)");
rc = parse_integer(ss.base(), &end, &value);
ASSERT_TRUE(rc);
ASSERT_EQ(value, expected_value);
ASSERT_EQ(end, ss.base() + strlen(pattern));
EXPECT_STREQ(end, ":-)");
rc = parse_integer(ss.base(), &value);
ASSERT_FALSE(rc);
}
template <typename T>
static void test_valid(T value, bool hex, T scale, const char* unit) {
if ((std::numeric_limits<T>::max() / scale) >= value) {
T expected_result = value * scale;
stringStream ss;
if (hex) {
ss.print(UINT64_FORMAT_X "%s", (uint64_t)value, unit); // e.g. "0xFFFF"
} else {
ss.print(UINT64_FORMAT "%s", (uint64_t)value, unit); // e.g. "65535"
}
do_test_valid((T)expected_result, ss.base());
}
}
template <typename T>
static void test_valid_all_units(T value, bool hex) {
test_valid(value, hex, (T)1, "");
test_valid(value, hex, (T)K, "k");
test_valid(value, hex, (T)K, "K");
test_valid(value, hex, (T)M, "m");
test_valid(value, hex, (T)M, "M");
test_valid(value, hex, (T)G, "g");
test_valid(value, hex, (T)G, "G");
if (sizeof(T) > 4) {
test_valid(value, hex, (T)((uint64_t)G * 1024), "t");
test_valid(value, hex, (T)((uint64_t)G * 1024), "T");
}
}
template <typename T>
static void test_valid_all_power_of_twos() {
for (int hex = 0; hex < 3; hex ++) {
for (T i = 1; i != 0; i <<= 2) {
test_valid_all_units(i - 1, hex == 1);
test_valid_all_units(i, hex == 1);
test_valid_all_units(i + 1, hex == 1);
}
}
}
TEST(ParseMemorySize, positives) {
test_valid_all_power_of_twos<uint64_t>();
test_valid_all_power_of_twos<uint32_t>();
test_valid_all_power_of_twos<int64_t>();
test_valid_all_power_of_twos<int32_t>();
}
// Test invalids.
// Note that parse_argument_memory_size is more restrictive than parse_memory_size, because
// the latter accepts trailing content.
static void do_test_invalid_both(const char* pattern) {
uint64_t value = 4711;
char* end = nullptr;
LOG("%s\n", pattern);
bool rc = parse_integer(pattern, &end, &value);
EXPECT_FALSE(rc);
rc = parse_integer(pattern, &value);
EXPECT_FALSE(rc);
}
static void do_test_invalid_for_parse_arguments(const char* pattern) {
uint64_t value = 4711;
char* end = nullptr;
LOG("%s\n", pattern);
// The first overload parses until unrecognized chars are encountered, then
// returns pointer to string remainder.
bool rc = parse_integer(pattern, &end, &value);
ASSERT_TRUE(rc);
// The second overload parses everything; unrecognized chars will make it fail.
rc = parse_integer(pattern, &value);
ASSERT_FALSE(rc);
}
TEST(ParseMemorySize, negatives_both) {
do_test_invalid_both("");
do_test_invalid_both("abc");
do_test_invalid_for_parse_arguments("100 M"); // parse_memory_size would see "100", parse_argument_memory_size would reject it
do_test_invalid_for_parse_arguments("100X"); // parse_memory_size would see "100", parse_argument_memory_size would reject it
}
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