danicoin/tests/UnitTests/StringViewTests.cpp
2016-01-18 15:33:29 +00:00

387 lines
16 KiB
C++
Executable file

// Copyright (c) 2011-2016 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <Common/StringView.h>
#include <gtest/gtest.h>
using namespace Common;
TEST(StringViewTests, representations) {
ASSERT_NE(nullptr, StringView::EMPTY.getData());
ASSERT_EQ(0, StringView::EMPTY.getSize());
ASSERT_EQ(nullptr, StringView::NIL.getData());
ASSERT_EQ(0, StringView::NIL.getSize());
}
TEST(StringViewTests, directConstructor) {
const char data[] = "ABCD";
ASSERT_EQ(data, StringView(data, 4).getData());
ASSERT_EQ(4, StringView(data, 4).getSize());
}
TEST(StringViewTests, arrayConstructor) {
const char data[] = "ABCD";
const StringView view = data;
ASSERT_EQ(data, view.getData());
ASSERT_EQ(4, view.getSize());
}
TEST(StringViewTests, stdStringConstructor) {
std::string string("ABCD");
const StringView view = string;
ASSERT_EQ(string.data(), view.getData());
ASSERT_EQ(string.size(), view.getSize());
}
TEST(StringViewTests, copyConstructor) {
const char data[] = "ABCD";
const StringView view(data);
ASSERT_EQ(view.getData(), StringView(view).getData());
ASSERT_EQ(view.getSize(), StringView(view).getSize());
}
TEST(StringViewTests, copyAssignment) {
const char data[] = "ABCD";
const StringView view1(data);
StringView view2;
view2 = view1;
ASSERT_EQ(view1.getData(), view2.getData());
ASSERT_EQ(view1.getSize(), view2.getSize());
}
TEST(ArrayRefTests, stdString) {
const char data[] = "ABCD";
const StringView view(data);
std::string string(view);
ASSERT_EQ(*view.getData(), *string.data());
ASSERT_EQ(*(view.getData() + 1), *(string.data() + 1));
ASSERT_EQ(*(view.getData() + 2), *(string.data() + 2));
ASSERT_EQ(*(view.getData() + 3), *(string.data() + 3));
ASSERT_EQ(view.getSize(), string.size());
}
TEST(StringViewTests, emptyNil) {
ASSERT_TRUE(StringView::EMPTY.isEmpty());
ASSERT_FALSE(StringView::EMPTY.isNil());
ASSERT_TRUE(StringView::NIL.isEmpty());
ASSERT_TRUE(StringView::NIL.isNil());
const char data[] = "ABCD";
ASSERT_TRUE(StringView(data, 0).isEmpty());
ASSERT_FALSE(StringView(data, 0).isNil());
ASSERT_FALSE(StringView(data).isEmpty());
ASSERT_FALSE(StringView(data).isNil());
}
TEST(StringViewTests, squareBrackets) {
const char data[] = "ABCD";
const StringView view(data);
ASSERT_EQ(data + 0, &view[0]);
ASSERT_EQ(data + 1, &view[1]);
ASSERT_EQ(data + 2, &view[2]);
ASSERT_EQ(data + 3, &view[3]);
}
TEST(StringViewTests, firstLast) {
const char data[] = "ABCD";
const StringView view(data);
ASSERT_EQ(data + 0, &view.first());
ASSERT_EQ(data + 3, &view.last());
}
TEST(StringViewTests, beginEnd) {
const char data[] = "ABCD";
ASSERT_EQ(nullptr, StringView::NIL.begin());
ASSERT_EQ(nullptr, StringView::NIL.end());
ASSERT_EQ(data, StringView(data).begin());
ASSERT_EQ(data + 4, StringView(data).end());
size_t offset = 0;
for (const char& value : StringView(data)) {
ASSERT_EQ(data[offset], value);
++offset;
}
}
TEST(StringViewTests, comparisons) {
const char data1[] = "ABC";
const char data2[] = "ABCD";
const char data3[] = "ABCD";
const char data4[] = "ABCDE";
const char data5[] = "FGHI";
ASSERT_TRUE(StringView::EMPTY == StringView::EMPTY);
ASSERT_TRUE(StringView::EMPTY == StringView::NIL);
ASSERT_FALSE(StringView::EMPTY == StringView(data1));
ASSERT_TRUE(StringView::NIL == StringView::EMPTY);
ASSERT_TRUE(StringView::NIL == StringView::NIL);
ASSERT_FALSE(StringView::NIL == StringView(data1));
ASSERT_FALSE(StringView(data2) == StringView::EMPTY);
ASSERT_FALSE(StringView(data2) == StringView::NIL);
ASSERT_FALSE(StringView(data2) == StringView(data1));
ASSERT_TRUE(StringView(data2) == StringView(data2));
ASSERT_TRUE(StringView(data2) == StringView(data3));
ASSERT_FALSE(StringView(data2) == StringView(data4));
ASSERT_FALSE(StringView(data2) == StringView(data5));
ASSERT_FALSE(StringView::EMPTY != StringView::EMPTY);
ASSERT_FALSE(StringView::EMPTY != StringView::NIL);
ASSERT_TRUE(StringView::EMPTY != StringView(data1));
ASSERT_FALSE(StringView::NIL != StringView::EMPTY);
ASSERT_FALSE(StringView::NIL != StringView::NIL);
ASSERT_TRUE(StringView::NIL != StringView(data1));
ASSERT_TRUE(StringView(data2) != StringView::EMPTY);
ASSERT_TRUE(StringView(data2) != StringView::NIL);
ASSERT_TRUE(StringView(data2) != StringView(data1));
ASSERT_FALSE(StringView(data2) != StringView(data2));
ASSERT_FALSE(StringView(data2) != StringView(data3));
ASSERT_TRUE(StringView(data2) != StringView(data4));
ASSERT_TRUE(StringView(data2) != StringView(data5));
ASSERT_FALSE(StringView::EMPTY < StringView::EMPTY);
ASSERT_FALSE(StringView::EMPTY < StringView::NIL);
ASSERT_TRUE(StringView::EMPTY < StringView(data1));
ASSERT_FALSE(StringView::NIL < StringView::EMPTY);
ASSERT_FALSE(StringView::NIL < StringView::NIL);
ASSERT_TRUE(StringView::NIL < StringView(data1));
ASSERT_FALSE(StringView(data2) < StringView::EMPTY);
ASSERT_FALSE(StringView(data2) < StringView::NIL);
ASSERT_FALSE(StringView(data2) < StringView(data1));
ASSERT_FALSE(StringView(data2) < StringView(data2));
ASSERT_FALSE(StringView(data2) < StringView(data3));
ASSERT_TRUE(StringView(data2) < StringView(data4));
ASSERT_TRUE(StringView(data2) < StringView(data5));
ASSERT_TRUE(StringView::EMPTY <= StringView::EMPTY);
ASSERT_TRUE(StringView::EMPTY <= StringView::NIL);
ASSERT_TRUE(StringView::EMPTY <= StringView(data1));
ASSERT_TRUE(StringView::NIL <= StringView::EMPTY);
ASSERT_TRUE(StringView::NIL <= StringView::NIL);
ASSERT_TRUE(StringView::NIL <= StringView(data1));
ASSERT_FALSE(StringView(data2) <= StringView::EMPTY);
ASSERT_FALSE(StringView(data2) <= StringView::NIL);
ASSERT_FALSE(StringView(data2) <= StringView(data1));
ASSERT_TRUE(StringView(data2) <= StringView(data2));
ASSERT_TRUE(StringView(data2) <= StringView(data3));
ASSERT_TRUE(StringView(data2) <= StringView(data4));
ASSERT_TRUE(StringView(data2) <= StringView(data5));
ASSERT_FALSE(StringView::EMPTY > StringView::EMPTY);
ASSERT_FALSE(StringView::EMPTY > StringView::NIL);
ASSERT_FALSE(StringView::EMPTY > StringView(data1));
ASSERT_FALSE(StringView::NIL > StringView::EMPTY);
ASSERT_FALSE(StringView::NIL > StringView::NIL);
ASSERT_FALSE(StringView::NIL > StringView(data1));
ASSERT_TRUE(StringView(data2) > StringView::EMPTY);
ASSERT_TRUE(StringView(data2) > StringView::NIL);
ASSERT_TRUE(StringView(data2) > StringView(data1));
ASSERT_FALSE(StringView(data2) > StringView(data2));
ASSERT_FALSE(StringView(data2) > StringView(data3));
ASSERT_FALSE(StringView(data2) > StringView(data4));
ASSERT_FALSE(StringView(data2) > StringView(data5));
ASSERT_TRUE(StringView::EMPTY >= StringView::EMPTY);
ASSERT_TRUE(StringView::EMPTY >= StringView::NIL);
ASSERT_FALSE(StringView::EMPTY >= StringView(data1));
ASSERT_TRUE(StringView::NIL >= StringView::EMPTY);
ASSERT_TRUE(StringView::NIL >= StringView::NIL);
ASSERT_FALSE(StringView::NIL >= StringView(data1));
ASSERT_TRUE(StringView(data2) >= StringView::EMPTY);
ASSERT_TRUE(StringView(data2) >= StringView::NIL);
ASSERT_TRUE(StringView(data2) >= StringView(data1));
ASSERT_TRUE(StringView(data2) >= StringView(data2));
ASSERT_TRUE(StringView(data2) >= StringView(data3));
ASSERT_FALSE(StringView(data2) >= StringView(data4));
ASSERT_FALSE(StringView(data2) >= StringView(data5));
}
TEST(StringViewTests, beginsWith) {
const char data1[] = "ABC";
const char data2[] = "ABCD";
const char data3[] = "ABCD";
const char data4[] = "ABCDE";
const char data5[] = "FGHI";
ASSERT_FALSE(StringView::EMPTY.beginsWith(data1[0]));
ASSERT_TRUE(StringView::EMPTY.beginsWith(StringView::EMPTY));
ASSERT_TRUE(StringView::EMPTY.beginsWith(StringView::NIL));
ASSERT_FALSE(StringView::EMPTY.beginsWith(StringView(data1)));
ASSERT_FALSE(StringView::NIL.beginsWith(data1[0]));
ASSERT_TRUE(StringView::NIL.beginsWith(StringView::EMPTY));
ASSERT_TRUE(StringView::NIL.beginsWith(StringView::NIL));
ASSERT_FALSE(StringView::NIL.beginsWith(StringView(data1)));
ASSERT_TRUE(StringView(data2).beginsWith(data1[0]));
ASSERT_FALSE(StringView(data2).beginsWith(data5[0]));
ASSERT_TRUE(StringView(data2).beginsWith(StringView::EMPTY));
ASSERT_TRUE(StringView(data2).beginsWith(StringView::NIL));
ASSERT_TRUE(StringView(data2).beginsWith(StringView(data1)));
ASSERT_TRUE(StringView(data2).beginsWith(StringView(data2)));
ASSERT_TRUE(StringView(data2).beginsWith(StringView(data3)));
ASSERT_FALSE(StringView(data2).beginsWith(StringView(data4)));
ASSERT_FALSE(StringView(data2).beginsWith(StringView(data5)));
}
TEST(StringViewTests, contains) {
const char data1[] = "BC";
const char data2[] = "ABCD";
const char data3[] = "ABCD";
const char data4[] = "ABCDE";
const char data5[] = "FGHI";
ASSERT_FALSE(StringView::EMPTY.contains(data1[1]));
ASSERT_TRUE(StringView::EMPTY.contains(StringView::EMPTY));
ASSERT_TRUE(StringView::EMPTY.contains(StringView::NIL));
ASSERT_FALSE(StringView::EMPTY.contains(StringView(data1)));
ASSERT_FALSE(StringView::NIL.contains(data1[1]));
ASSERT_TRUE(StringView::NIL.contains(StringView::EMPTY));
ASSERT_TRUE(StringView::NIL.contains(StringView::NIL));
ASSERT_FALSE(StringView::NIL.contains(StringView(data1)));
ASSERT_TRUE(StringView(data2).contains(data1[1]));
ASSERT_FALSE(StringView(data2).contains(data5[1]));
ASSERT_TRUE(StringView(data2).contains(StringView::EMPTY));
ASSERT_TRUE(StringView(data2).contains(StringView::NIL));
ASSERT_TRUE(StringView(data2).contains(StringView(data1)));
ASSERT_TRUE(StringView(data2).contains(StringView(data2)));
ASSERT_TRUE(StringView(data2).contains(StringView(data3)));
ASSERT_FALSE(StringView(data2).contains(StringView(data4)));
ASSERT_FALSE(StringView(data2).contains(StringView(data5)));
}
TEST(StringViewTests, endsWith) {
const char data1[] = "BCD";
const char data2[] = "ABCD";
const char data3[] = "ABCD";
const char data4[] = "ABCDE";
const char data5[] = "FGHI";
ASSERT_FALSE(StringView::EMPTY.endsWith(data1[2]));
ASSERT_TRUE(StringView::EMPTY.endsWith(StringView::EMPTY));
ASSERT_TRUE(StringView::EMPTY.endsWith(StringView::NIL));
ASSERT_FALSE(StringView::EMPTY.endsWith(StringView(data1)));
ASSERT_FALSE(StringView::NIL.endsWith(data1[2]));
ASSERT_TRUE(StringView::NIL.endsWith(StringView::EMPTY));
ASSERT_TRUE(StringView::NIL.endsWith(StringView::NIL));
ASSERT_FALSE(StringView::NIL.endsWith(StringView(data1)));
ASSERT_TRUE(StringView(data2).endsWith(data1[2]));
ASSERT_FALSE(StringView(data2).endsWith(data5[3]));
ASSERT_TRUE(StringView(data2).endsWith(StringView::EMPTY));
ASSERT_TRUE(StringView(data2).endsWith(StringView::NIL));
ASSERT_TRUE(StringView(data2).endsWith(StringView(data1)));
ASSERT_TRUE(StringView(data2).endsWith(StringView(data2)));
ASSERT_TRUE(StringView(data2).endsWith(StringView(data3)));
ASSERT_FALSE(StringView(data2).endsWith(StringView(data4)));
ASSERT_FALSE(StringView(data2).endsWith(StringView(data5)));
}
TEST(StringViewTests, find) {
const char data1[] = "BC";
const char data2[] = "ABCBCD";
const char data3[] = "ABCBCD";
const char data4[] = "ABCBCDE";
const char data5[] = "FGHI";
ASSERT_EQ(StringView::INVALID, StringView::EMPTY.find(data1[0]));
ASSERT_EQ(0, StringView::EMPTY.find(StringView::EMPTY));
ASSERT_EQ(0, StringView::EMPTY.find(StringView::NIL));
ASSERT_EQ(StringView::INVALID, StringView::EMPTY.find(StringView(data1)));
ASSERT_EQ(StringView::INVALID, StringView::NIL.find(data1[0]));
ASSERT_EQ(0, StringView::NIL.find(StringView::EMPTY));
ASSERT_EQ(0, StringView::NIL.find(StringView::NIL));
ASSERT_EQ(StringView::INVALID, StringView::NIL.find(StringView(data1)));
ASSERT_EQ(1, StringView(data2).find(data1[0]));
ASSERT_EQ(StringView::INVALID, StringView(data2).find(data5[1]));
ASSERT_EQ(0, StringView(data2).find(StringView::EMPTY));
ASSERT_EQ(0, StringView(data2).find(StringView::NIL));
ASSERT_EQ(1, StringView(data2).find(StringView(data1)));
ASSERT_EQ(0, StringView(data2).find(StringView(data2)));
ASSERT_EQ(0, StringView(data2).find(StringView(data3)));
ASSERT_EQ(StringView::INVALID, StringView(data2).find(StringView(data4)));
ASSERT_EQ(StringView::INVALID, StringView(data2).find(StringView(data5)));
}
TEST(StringViewTests, findLast) {
const char data1[] = "BC";
const char data2[] = "ABCBCD";
const char data3[] = "ABCBCD";
const char data4[] = "ABCBCDE";
const char data5[] = "FGHI";
ASSERT_EQ(StringView::INVALID, StringView::EMPTY.findLast(data1[0]));
ASSERT_EQ(0, StringView::EMPTY.findLast(StringView::EMPTY));
ASSERT_EQ(0, StringView::EMPTY.findLast(StringView::NIL));
ASSERT_EQ(StringView::INVALID, StringView::EMPTY.findLast(StringView(data1)));
ASSERT_EQ(StringView::INVALID, StringView::NIL.findLast(data1[0]));
ASSERT_EQ(0, StringView::NIL.findLast(StringView::EMPTY));
ASSERT_EQ(0, StringView::NIL.findLast(StringView::NIL));
ASSERT_EQ(StringView::INVALID, StringView::NIL.findLast(StringView(data1)));
ASSERT_EQ(3, StringView(data2).findLast(data1[0]));
ASSERT_EQ(StringView::INVALID, StringView(data2).findLast(data5[1]));
ASSERT_EQ(6, StringView(data2).findLast(StringView::EMPTY));
ASSERT_EQ(6, StringView(data2).findLast(StringView::NIL));
ASSERT_EQ(3, StringView(data2).findLast(StringView(data1)));
ASSERT_EQ(0, StringView(data2).findLast(StringView(data2)));
ASSERT_EQ(0, StringView(data2).findLast(StringView(data3)));
ASSERT_EQ(StringView::INVALID, StringView(data2).findLast(StringView(data4)));
ASSERT_EQ(StringView::INVALID, StringView(data2).findLast(StringView(data5)));
}
TEST(StringViewTests, head) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.head(0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.head(0));
ASSERT_EQ(StringView(data, 0), StringView(data).head(0));
ASSERT_EQ(StringView(data, 2), StringView(data).head(2));
ASSERT_EQ(StringView(data, 4), StringView(data).head(4));
}
TEST(StringViewTests, tail) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.tail(0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.tail(0));
ASSERT_EQ(StringView(data + 4, 0), StringView(data).tail(0));
ASSERT_EQ(StringView(data + 2, 2), StringView(data).tail(2));
ASSERT_EQ(StringView(data, 4), StringView(data).tail(4));
}
TEST(StringViewTests, unhead) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.unhead(0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.unhead(0));
ASSERT_EQ(StringView(data, 4), StringView(data).unhead(0));
ASSERT_EQ(StringView(data + 2, 2), StringView(data).unhead(2));
ASSERT_EQ(StringView(data + 4, 0), StringView(data).unhead(4));
}
TEST(StringViewTests, untail) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.untail(0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.untail(0));
ASSERT_EQ(StringView(data, 4), StringView(data).untail(0));
ASSERT_EQ(StringView(data, 2), StringView(data).untail(2));
ASSERT_EQ(StringView(data, 0), StringView(data).untail(4));
}
TEST(StringViewTests, range) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.range(0, 0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.range(0, 0));
ASSERT_EQ(StringView(data + 0, 0), StringView(data).range(0, 0));
ASSERT_EQ(StringView(data + 0, 2), StringView(data).range(0, 2));
ASSERT_EQ(StringView(data + 0, 4), StringView(data).range(0, 4));
ASSERT_EQ(StringView(data + 2, 0), StringView(data).range(2, 2));
ASSERT_EQ(StringView(data + 2, 2), StringView(data).range(2, 4));
ASSERT_EQ(StringView(data + 4, 0), StringView(data).range(4, 4));
}
TEST(StringViewTests, slice) {
const char data[] = "ABCD";
ASSERT_EQ(0, StringView::EMPTY.slice(0, 0).getSize());
ASSERT_EQ(StringView(nullptr, 0), StringView::NIL.slice(0, 0));
ASSERT_EQ(StringView(data + 0, 0), StringView(data).slice(0, 0));
ASSERT_EQ(StringView(data + 0, 2), StringView(data).slice(0, 2));
ASSERT_EQ(StringView(data + 0, 4), StringView(data).slice(0, 4));
ASSERT_EQ(StringView(data + 2, 0), StringView(data).slice(2, 0));
ASSERT_EQ(StringView(data + 2, 2), StringView(data).slice(2, 2));
ASSERT_EQ(StringView(data + 4, 0), StringView(data).slice(4, 0));
}
TEST(StringViewTests, set) {
std::set<std::string> set;
set.insert("AB");
set.insert("ABC");
set.insert("ABCD");
ASSERT_EQ(0, set.count(std::string(StringView("A"))));
ASSERT_EQ(1, set.count(std::string(StringView("AB"))));
ASSERT_EQ(1, set.count(std::string(StringView("ABC"))));
ASSERT_EQ(1, set.count(std::string(StringView("ABCD"))));
ASSERT_EQ(0, set.count(std::string(StringView("ABCDE"))));
}