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minetest/src/unittest/test_utilities.cpp

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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program 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 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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 "test.h"
#include <cmath>
#include "util/numeric.h"
#include "util/string.h"
class TestUtilities : public TestBase {
public:
TestUtilities() { TestManager::registerTestModule(this); }
const char *getName() { return "TestUtilities"; }
void runTests(IGameDef *gamedef);
void testAngleWrapAround();
void testLowercase();
void testTrim();
void testIsYes();
void testRemoveStringEnd();
void testUrlEncode();
void testUrlDecode();
void testPadString();
void testStartsWith();
void testStrEqual();
void testStringTrim();
void testStrToIntConversion();
void testStringReplace();
void testStringAllowed();
void testAsciiPrintableHelper();
void testUTF8();
void testRemoveEscapes();
void testWrapRows();
void testIsNumber();
void testIsPowerOfTwo();
void testMyround();
};
static TestUtilities g_test_instance;
void TestUtilities::runTests(IGameDef *gamedef)
{
TEST(testAngleWrapAround);
TEST(testLowercase);
TEST(testTrim);
TEST(testIsYes);
TEST(testRemoveStringEnd);
TEST(testUrlEncode);
TEST(testUrlDecode);
TEST(testPadString);
TEST(testStartsWith);
TEST(testStrEqual);
TEST(testStringTrim);
TEST(testStrToIntConversion);
TEST(testStringReplace);
TEST(testStringAllowed);
TEST(testAsciiPrintableHelper);
TEST(testUTF8);
TEST(testRemoveEscapes);
TEST(testWrapRows);
TEST(testIsNumber);
TEST(testIsPowerOfTwo);
TEST(testMyround);
}
////////////////////////////////////////////////////////////////////////////////
inline float ref_WrapDegrees180(float f)
{
// This is a slower alternative to the wrapDegrees_180() function;
// used as a reference for testing
float value = fmodf(f + 180, 360);
if (value < 0)
value += 360;
return value - 180;
}
inline float ref_WrapDegrees_0_360(float f)
{
// This is a slower alternative to the wrapDegrees_0_360() function;
// used as a reference for testing
float value = fmodf(f, 360);
if (value < 0)
value += 360;
return value < 0 ? value + 360 : value;
}
void TestUtilities::testAngleWrapAround()
{
UASSERT(fabs(modulo360f(100.0) - 100.0) < 0.001);
UASSERT(fabs(modulo360f(720.5) - 0.5) < 0.001);
UASSERT(fabs(modulo360f(-0.5) - (-0.5)) < 0.001);
UASSERT(fabs(modulo360f(-365.5) - (-5.5)) < 0.001);
for (float f = -720; f <= -360; f += 0.25) {
UASSERT(std::fabs(modulo360f(f) - modulo360f(f + 360)) < 0.001);
}
for (float f = -1440; f <= 1440; f += 0.25) {
UASSERT(std::fabs(modulo360f(f) - fmodf(f, 360)) < 0.001);
UASSERT(std::fabs(wrapDegrees_180(f) - ref_WrapDegrees180(f)) < 0.001);
UASSERT(std::fabs(wrapDegrees_0_360(f) - ref_WrapDegrees_0_360(f)) < 0.001);
UASSERT(wrapDegrees_0_360(
std::fabs(wrapDegrees_180(f) - wrapDegrees_0_360(f))) < 0.001);
}
}
void TestUtilities::testLowercase()
{
UASSERT(lowercase("Foo bAR") == "foo bar");
}
void TestUtilities::testTrim()
{
UASSERT(trim("") == "");
UASSERT(trim("dirt_with_grass") == "dirt_with_grass");
UASSERT(trim("\n \t\r Foo bAR \r\n\t\t ") == "Foo bAR");
UASSERT(trim("\n \t\r \r\n\t\t ") == "");
}
void TestUtilities::testIsYes()
{
UASSERT(is_yes("YeS") == true);
UASSERT(is_yes("") == false);
UASSERT(is_yes("FAlse") == false);
UASSERT(is_yes("-1") == true);
UASSERT(is_yes("0") == false);
UASSERT(is_yes("1") == true);
UASSERT(is_yes("2") == true);
}
void TestUtilities::testRemoveStringEnd()
{
const char *ends[] = {"abc", "c", "bc", "", NULL};
UASSERT(removeStringEnd("abc", ends) == "");
UASSERT(removeStringEnd("bc", ends) == "b");
UASSERT(removeStringEnd("12c", ends) == "12");
UASSERT(removeStringEnd("foo", ends) == "");
}
void TestUtilities::testUrlEncode()
{
UASSERT(urlencode("\"Aardvarks lurk, OK?\"")
== "%22Aardvarks%20lurk%2C%20OK%3F%22");
}
void TestUtilities::testUrlDecode()
{
UASSERT(urldecode("%22Aardvarks%20lurk%2C%20OK%3F%22")
== "\"Aardvarks lurk, OK?\"");
}
void TestUtilities::testPadString()
{
UASSERT(padStringRight("hello", 8) == "hello ");
}
void TestUtilities::testStartsWith()
{
UASSERT(str_starts_with(std::string(), std::string()) == true);
UASSERT(str_starts_with(std::string("the sharp pickaxe"),
std::string()) == true);
UASSERT(str_starts_with(std::string("the sharp pickaxe"),
std::string("the")) == true);
UASSERT(str_starts_with(std::string("the sharp pickaxe"),
std::string("The")) == false);
UASSERT(str_starts_with(std::string("the sharp pickaxe"),
std::string("The"), true) == true);
UASSERT(str_starts_with(std::string("T"), std::string("The")) == false);
}
void TestUtilities::testStrEqual()
{
UASSERT(str_equal(narrow_to_wide("abc"), narrow_to_wide("abc")));
UASSERT(str_equal(narrow_to_wide("ABC"), narrow_to_wide("abc"), true));
}
void TestUtilities::testStringTrim()
{
UASSERT(trim(" a") == "a");
UASSERT(trim(" a ") == "a");
UASSERT(trim("a ") == "a");
UASSERT(trim("") == "");
}
void TestUtilities::testStrToIntConversion()
{
UASSERT(mystoi("123", 0, 1000) == 123);
UASSERT(mystoi("123", 0, 10) == 10);
}
void TestUtilities::testStringReplace()
{
std::string test_str;
test_str = "Hello there";
str_replace(test_str, "there", "world");
UASSERT(test_str == "Hello world");
test_str = "ThisAisAaAtest";
str_replace(test_str, 'A', ' ');
UASSERT(test_str == "This is a test");
}
void TestUtilities::testStringAllowed()
{
UASSERT(string_allowed("hello", "abcdefghijklmno") == true);
UASSERT(string_allowed("123", "abcdefghijklmno") == false);
UASSERT(string_allowed_blacklist("hello", "123") == true);
UASSERT(string_allowed_blacklist("hello123", "123") == false);
}
void TestUtilities::testAsciiPrintableHelper()
{
UASSERT(IS_ASCII_PRINTABLE_CHAR('e') == true);
UASSERT(IS_ASCII_PRINTABLE_CHAR('\0') == false);
// Ensures that there is no cutting off going on...
// If there were, 331 would be cut to 75 in this example
// and 73 is a valid ASCII char.
int ch = 331;
UASSERT(IS_ASCII_PRINTABLE_CHAR(ch) == false);
}
void TestUtilities::testUTF8()
{
UASSERT(wide_to_utf8(utf8_to_wide("")) == "");
UASSERT(wide_to_utf8(utf8_to_wide("the shovel dug a crumbly node!"))
== "the shovel dug a crumbly node!");
}
void TestUtilities::testRemoveEscapes()
{
UASSERT(unescape_enriched<wchar_t>(
L"abc\x1bXdef") == L"abcdef");
UASSERT(unescape_enriched<wchar_t>(
L"abc\x1b(escaped)def") == L"abcdef");
UASSERT(unescape_enriched<wchar_t>(
L"abc\x1b((escaped with parenthesis\\))def") == L"abcdef");
UASSERT(unescape_enriched<wchar_t>(
L"abc\x1b(incomplete") == L"abc");
UASSERT(unescape_enriched<wchar_t>(
L"escape at the end\x1b") == L"escape at the end");
// Nested escapes not supported
UASSERT(unescape_enriched<wchar_t>(
L"abc\x1b(outer \x1b(inner escape)escape)def") == L"abcescape)def");
}
void TestUtilities::testWrapRows()
{
UASSERT(wrap_rows("12345678",4) == "1234\n5678");
// test that wrap_rows doesn't wrap inside multibyte sequences
{
const unsigned char s[] = {
0x2f, 0x68, 0x6f, 0x6d, 0x65, 0x2f, 0x72, 0x61, 0x70, 0x74, 0x6f,
0x72, 0x2f, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82, 0x2f,
0x6d, 0x69, 0x6e, 0x65, 0x74, 0x65, 0x73, 0x74, 0x2f, 0x62, 0x69,
0x6e, 0x2f, 0x2e, 0x2e, 0};
std::string str((char *)s);
UASSERT(utf8_to_wide(wrap_rows(str, 20)) != L"<invalid UTF-8 string>");
};
{
const unsigned char s[] = {
0x74, 0x65, 0x73, 0x74, 0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81,
0xd1, 0x82, 0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82,
0x20, 0xd1, 0x82, 0xd0, 0xb5, 0xd1, 0x81, 0xd1, 0x82, 0};
std::string str((char *)s);
UASSERT(utf8_to_wide(wrap_rows(str, 8)) != L"<invalid UTF-8 string>");
}
}
void TestUtilities::testIsNumber()
{
UASSERT(is_number("123") == true);
UASSERT(is_number("") == false);
UASSERT(is_number("123a") == false);
}
void TestUtilities::testIsPowerOfTwo()
{
UASSERT(is_power_of_two(0) == false);
UASSERT(is_power_of_two(1) == true);
UASSERT(is_power_of_two(2) == true);
UASSERT(is_power_of_two(3) == false);
for (int exponent = 2; exponent <= 31; ++exponent) {
UASSERT(is_power_of_two((1 << exponent) - 1) == false);
UASSERT(is_power_of_two((1 << exponent)) == true);
UASSERT(is_power_of_two((1 << exponent) + 1) == false);
}
UASSERT(is_power_of_two(U32_MAX) == false);
}
void TestUtilities::testMyround()
{
UASSERT(myround(4.6f) == 5);
UASSERT(myround(1.2f) == 1);
UASSERT(myround(-3.1f) == -3);
UASSERT(myround(-6.5f) == -7);
}
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