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StringTokenizerTest.h
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StringTokenizerTest.h
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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
// NScD Oak Ridge National Laboratory, European Spallation Source,
// Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
#include "MantidKernel/StringTokenizer.h"
#include "MantidKernel/uniform_int_distribution.h"
#include <array>
#include <cxxtest/TestSuite.h>
#include <random>
/**
\class StringTokenizerTest
Checks the basic string operations in StringTokenizer
*/
class StringTokenizerTest : public CxxTest::TestSuite {
public:
void test_StringTokenizer_key_value() {
auto tokenizer1 =
Mantid::Kernel::StringTokenizer("key1=value1: key2=value2", ":", Mantid::Kernel::StringTokenizer::TOK_TRIM);
std::vector<std::string> expected{"key1=value1", "key2=value2"};
TS_ASSERT_EQUALS(tokenizer1.asVector(), expected);
auto tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1[0], "=", Mantid::Kernel::StringTokenizer::TOK_TRIM);
expected = {"key1", "value1"};
TS_ASSERT_EQUALS(tokenizer1.count(), 2);
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected);
tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1[1], "=", Mantid::Kernel::StringTokenizer::TOK_TRIM);
expected = {"key2", "value2"};
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected);
}
void test_StringTokenizer_key_value_with_spaces() {
auto tokenizer1 = Mantid::Kernel::StringTokenizer("key 1@value1: key2@value 2", ":");
std::vector<std::string> expected1{"key 1@value1", " key2@value 2"};
TS_ASSERT_EQUALS(tokenizer1.asVector(), expected1);
TS_ASSERT_EQUALS(tokenizer1.count(), 2);
auto tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1[0], "@");
std::vector<std::string> expected2{"key 1", "value1"};
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected2);
tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1.at(0), "@");
expected2 = {"key 1", "value1"};
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected2);
tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1[1], "@");
expected2 = {" key2", "value 2"};
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected2);
tokenizer2 = Mantid::Kernel::StringTokenizer(tokenizer1.at(1), "@");
expected2 = {" key2", "value 2"};
TS_ASSERT_EQUALS(tokenizer2.asVector(), expected2);
TS_ASSERT_THROWS_ANYTHING(tokenizer1.at(3));
}
void test_StringTokenizer_parseRange_simple() {
auto tokenizer = Mantid::Kernel::StringTokenizer("3,1,4,0,2,5", ",");
std::vector<std::string> expected{"3", "1", "4", "0", "2", "5"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
tokenizer = Mantid::Kernel::StringTokenizer("3,1,4,0,2,5,", ",");
expected = {"3", "1", "4", "0", "2", "5", ""};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
tokenizer = Mantid::Kernel::StringTokenizer("3,1,4,0,2,5,", ",",
Mantid::Kernel::StringTokenizer::TOK_IGNORE_FINAL_EMPTY_TOKEN);
expected = {"3", "1", "4", "0", "2", "5"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_ranges() {
auto tokenizer = Mantid::Kernel::StringTokenizer(" 1, 2 - 5, 6 ,7,8, 9,10-12", ",",
Mantid::Kernel::StringTokenizer::TOK_TRIM |
Mantid::Kernel::StringTokenizer::TOK_IGNORE_EMPTY);
std::vector<std::string> expected{"1", "2 - 5", "6", "7", "8", "9", "10-12"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_emptyElements() {
auto tokenizer = Mantid::Kernel::StringTokenizer(
",1,2,3", ",", Mantid::Kernel::StringTokenizer::TOK_TRIM | Mantid::Kernel::StringTokenizer::TOK_IGNORE_EMPTY);
std::vector<std::string> expected{"1", "2", "3"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
tokenizer = Mantid::Kernel::StringTokenizer("1,2,3,", ",", Mantid::Kernel::StringTokenizer::TOK_TRIM);
expected = {"1", "2", "3", ""};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
tokenizer = Mantid::Kernel::StringTokenizer("1,2,,,,3", ",", Mantid::Kernel::StringTokenizer::TOK_TRIM);
expected = {"1", "2", "", "", "", "3"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_mapStyleSimple() {
auto tokenizer = Mantid::Kernel::StringTokenizer(" 52 53 54 55 56 57 58 192", " ",
Mantid::Kernel::StringTokenizer::TOK_TRIM |
Mantid::Kernel::StringTokenizer::TOK_IGNORE_EMPTY);
std::vector<std::string> expected{"52", "53", "54", "55", "56", "57", "58", "192"};
TS_ASSERT_EQUALS(tokenizer.count(), 8);
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_customRangeSep() {
auto tokenizer = Mantid::Kernel::StringTokenizer("1-2,3:5,6-7,8:10", ",");
std::vector<std::string> expected{"1-2", "3:5", "6-7", "8:10"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_emptyString() {
auto tokenizer = Mantid::Kernel::StringTokenizer("", "-:");
TS_ASSERT_EQUALS(tokenizer.count(), 0);
TS_ASSERT_EQUALS(tokenizer.asVector(), std::vector<std::string>());
}
void test_StringTokenizer_parseRange_invalidRange() {
auto tokenizer = Mantid::Kernel::StringTokenizer("1,2,3,-5,6", ",");
std::vector<std::string> expected{"1", "2", "3", "-5", "6"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_invalidRange2() {
auto tokenizer = Mantid::Kernel::StringTokenizer("-5", "-");
std::vector<std::string> expected{"", "5"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_parseRange_invalidRange3() {
auto tokenizer = Mantid::Kernel::StringTokenizer("2-", "-");
std::vector<std::string> expected{"2", ""};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
tokenizer =
Mantid::Kernel::StringTokenizer("2-", "-", Mantid::Kernel::StringTokenizer::TOK_IGNORE_FINAL_EMPTY_TOKEN);
expected = {"2"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_invalidOptionThrows() {
TS_ASSERT_THROWS_ANYTHING(Mantid::Kernel::StringTokenizer(" ", "-:", 8));
}
void test_StringTokenizer_multipleSeparators() {
auto tokenizer = Mantid::Kernel::StringTokenizer("1,2,3,-5,6", ",-");
std::vector<std::string> expected{"1", "2", "3", "", "5", "6"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
void test_StringTokenizer_emptySeparators() {
auto tokenizer = Mantid::Kernel::StringTokenizer("1,2,3,-5,6", "");
std::vector<std::string> expected{"1,2,3,-5,6"};
TS_ASSERT_EQUALS(tokenizer.asVector(), expected);
}
};
class RandomCharacter {
public:
RandomCharacter() {
const size_t maxIndex = (sizeof(m_characterSet) - 1);
m_distribution = Mantid::Kernel::uniform_int_distribution<unsigned>(0, maxIndex);
}
char operator()() { return m_characterSet[m_distribution(m_generator)]; }
private:
std::array<char, 62> m_characterSet{{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F',
'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'}};
std::mt19937 m_generator;
Mantid::Kernel::uniform_int_distribution<unsigned> m_distribution;
};
std::string randomString(size_t length) {
RandomCharacter randChar;
std::string str(length, 0);
for (auto &character : str) {
character = randChar();
}
return str;
}
class StringTokenizerTestPerformance : public CxxTest::TestSuite {
private:
std::string m_bigString;
std::size_t m_length = 50000000;
public:
// This pair of boilerplate methods prevent the suite being created statically
// This means the constructor isn't called when running other tests
static StringTokenizerTestPerformance *createSuite() { return new StringTokenizerTestPerformance(); }
static void destroySuite(StringTokenizerTestPerformance *suite) { delete suite; }
StringTokenizerTestPerformance() {
m_bigString = randomString(m_length);
for (size_t i = 2; i < m_length; i += 10) {
m_bigString[i - 2] = ';';
m_bigString[i - 1] = ' ';
m_bigString[i] = ';';
}
};
void test_oneLargeString() {
auto tokenizer1 = Mantid::Kernel::StringTokenizer(m_bigString, ";", 0);
TS_ASSERT_EQUALS(tokenizer1.count(), m_length / 5 + 1);
}
void test_oneLargeString_trim() {
auto tokenizer1 = Mantid::Kernel::StringTokenizer(m_bigString, ";", Mantid::Kernel::StringTokenizer::TOK_TRIM);
TS_ASSERT_EQUALS(tokenizer1.count(), m_length / 5 + 1);
}
void test_oneLargeString_trim_ignoreEmpty() {
auto tokenizer1 = Mantid::Kernel::StringTokenizer(m_bigString, ";",
Mantid::Kernel::StringTokenizer::TOK_TRIM |
Mantid::Kernel::StringTokenizer::TOK_IGNORE_EMPTY);
TS_ASSERT_EQUALS(tokenizer1.count(), m_length / 10);
}
};