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shaka-packager/base/strings/string_piece_unittest.cc

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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "base/strings/string16.h"
#include "base/strings/string_piece.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
template <typename T>
class CommonStringPieceTest : public ::testing::Test {
public:
static const T as_string(const char* input) {
return T(input);
}
static const T& as_string(const T& input) {
return input;
}
};
template <>
class CommonStringPieceTest<string16> : public ::testing::Test {
public:
static const string16 as_string(const char* input) {
return ASCIIToUTF16(input);
}
static const string16 as_string(const std::string& input) {
return ASCIIToUTF16(input);
}
};
typedef ::testing::Types<std::string, string16> SupportedStringTypes;
TYPED_TEST_CASE(CommonStringPieceTest, SupportedStringTypes);
TYPED_TEST(CommonStringPieceTest, CheckComparisonOperators) {
#define CMP_Y(op, x, y) \
{ \
TypeParam lhs(TestFixture::as_string(x)); \
TypeParam rhs(TestFixture::as_string(y)); \
ASSERT_TRUE( (BasicStringPiece<TypeParam>((lhs.c_str())) op \
BasicStringPiece<TypeParam>((rhs.c_str())))); \
ASSERT_TRUE( (BasicStringPiece<TypeParam>((lhs.c_str())).compare( \
BasicStringPiece<TypeParam>((rhs.c_str()))) op 0)); \
}
#define CMP_N(op, x, y) \
{ \
TypeParam lhs(TestFixture::as_string(x)); \
TypeParam rhs(TestFixture::as_string(y)); \
ASSERT_FALSE( (BasicStringPiece<TypeParam>((lhs.c_str())) op \
BasicStringPiece<TypeParam>((rhs.c_str())))); \
ASSERT_FALSE( (BasicStringPiece<TypeParam>((lhs.c_str())).compare( \
BasicStringPiece<TypeParam>((rhs.c_str()))) op 0)); \
}
CMP_Y(==, "", "");
CMP_Y(==, "a", "a");
CMP_Y(==, "aa", "aa");
CMP_N(==, "a", "");
CMP_N(==, "", "a");
CMP_N(==, "a", "b");
CMP_N(==, "a", "aa");
CMP_N(==, "aa", "a");
CMP_N(!=, "", "");
CMP_N(!=, "a", "a");
CMP_N(!=, "aa", "aa");
CMP_Y(!=, "a", "");
CMP_Y(!=, "", "a");
CMP_Y(!=, "a", "b");
CMP_Y(!=, "a", "aa");
CMP_Y(!=, "aa", "a");
CMP_Y(<, "a", "b");
CMP_Y(<, "a", "aa");
CMP_Y(<, "aa", "b");
CMP_Y(<, "aa", "bb");
CMP_N(<, "a", "a");
CMP_N(<, "b", "a");
CMP_N(<, "aa", "a");
CMP_N(<, "b", "aa");
CMP_N(<, "bb", "aa");
CMP_Y(<=, "a", "a");
CMP_Y(<=, "a", "b");
CMP_Y(<=, "a", "aa");
CMP_Y(<=, "aa", "b");
CMP_Y(<=, "aa", "bb");
CMP_N(<=, "b", "a");
CMP_N(<=, "aa", "a");
CMP_N(<=, "b", "aa");
CMP_N(<=, "bb", "aa");
CMP_N(>=, "a", "b");
CMP_N(>=, "a", "aa");
CMP_N(>=, "aa", "b");
CMP_N(>=, "aa", "bb");
CMP_Y(>=, "a", "a");
CMP_Y(>=, "b", "a");
CMP_Y(>=, "aa", "a");
CMP_Y(>=, "b", "aa");
CMP_Y(>=, "bb", "aa");
CMP_N(>, "a", "a");
CMP_N(>, "a", "b");
CMP_N(>, "a", "aa");
CMP_N(>, "aa", "b");
CMP_N(>, "aa", "bb");
CMP_Y(>, "b", "a");
CMP_Y(>, "aa", "a");
CMP_Y(>, "b", "aa");
CMP_Y(>, "bb", "aa");
std::string x;
for (int i = 0; i < 256; i++) {
x += 'a';
std::string y = x;
CMP_Y(==, x, y);
for (int j = 0; j < i; j++) {
std::string z = x;
z[j] = 'b'; // Differs in position 'j'
CMP_N(==, x, z);
}
}
#undef CMP_Y
#undef CMP_N
}
TYPED_TEST(CommonStringPieceTest, CheckSTL) {
TypeParam alphabet(TestFixture::as_string("abcdefghijklmnopqrstuvwxyz"));
TypeParam abc(TestFixture::as_string("abc"));
TypeParam xyz(TestFixture::as_string("xyz"));
TypeParam foobar(TestFixture::as_string("foobar"));
BasicStringPiece<TypeParam> a(alphabet);
BasicStringPiece<TypeParam> b(abc);
BasicStringPiece<TypeParam> c(xyz);
BasicStringPiece<TypeParam> d(foobar);
BasicStringPiece<TypeParam> e;
TypeParam temp(TestFixture::as_string("123"));
temp += static_cast<typename TypeParam::value_type>(0);
temp += TestFixture::as_string("456");
BasicStringPiece<TypeParam> f(temp);
ASSERT_EQ(a[6], static_cast<typename TypeParam::value_type>('g'));
ASSERT_EQ(b[0], static_cast<typename TypeParam::value_type>('a'));
ASSERT_EQ(c[2], static_cast<typename TypeParam::value_type>('z'));
ASSERT_EQ(f[3], static_cast<typename TypeParam::value_type>('\0'));
ASSERT_EQ(f[5], static_cast<typename TypeParam::value_type>('5'));
ASSERT_EQ(*d.data(), static_cast<typename TypeParam::value_type>('f'));
ASSERT_EQ(d.data()[5], static_cast<typename TypeParam::value_type>('r'));
ASSERT_TRUE(e.data() == NULL);
ASSERT_EQ(*a.begin(), static_cast<typename TypeParam::value_type>('a'));
ASSERT_EQ(*(b.begin() + 2), static_cast<typename TypeParam::value_type>('c'));
ASSERT_EQ(*(c.end() - 1), static_cast<typename TypeParam::value_type>('z'));
ASSERT_EQ(*a.rbegin(), static_cast<typename TypeParam::value_type>('z'));
ASSERT_EQ(*(b.rbegin() + 2),
static_cast<typename TypeParam::value_type>('a'));
ASSERT_EQ(*(c.rend() - 1), static_cast<typename TypeParam::value_type>('x'));
ASSERT_TRUE(a.rbegin() + 26 == a.rend());
ASSERT_EQ(a.size(), 26U);
ASSERT_EQ(b.size(), 3U);
ASSERT_EQ(c.size(), 3U);
ASSERT_EQ(d.size(), 6U);
ASSERT_EQ(e.size(), 0U);
ASSERT_EQ(f.size(), 7U);
ASSERT_TRUE(!d.empty());
ASSERT_TRUE(d.begin() != d.end());
ASSERT_TRUE(d.begin() + 6 == d.end());
ASSERT_TRUE(e.empty());
ASSERT_TRUE(e.begin() == e.end());
d.clear();
ASSERT_EQ(d.size(), 0U);
ASSERT_TRUE(d.empty());
ASSERT_TRUE(d.data() == NULL);
ASSERT_TRUE(d.begin() == d.end());
ASSERT_GE(a.max_size(), a.capacity());
ASSERT_GE(a.capacity(), a.size());
}
// STL stuff only supported by the std::string version
TEST(StringPieceTest, CheckSTL) {
StringPiece a("abcdefghijklmnopqrstuvwxyz");
StringPiece b("abc");
StringPiece c("xyz");
StringPiece d("foobar");
d.clear();
StringPiece e;
std::string temp("123");
temp += '\0';
temp += "456";
StringPiece f(temp);
char buf[4] = { '%', '%', '%', '%' };
ASSERT_EQ(a.copy(buf, 4), 4U);
ASSERT_EQ(buf[0], a[0]);
ASSERT_EQ(buf[1], a[1]);
ASSERT_EQ(buf[2], a[2]);
ASSERT_EQ(buf[3], a[3]);
ASSERT_EQ(a.copy(buf, 3, 7), 3U);
ASSERT_EQ(buf[0], a[7]);
ASSERT_EQ(buf[1], a[8]);
ASSERT_EQ(buf[2], a[9]);
ASSERT_EQ(buf[3], a[3]);
ASSERT_EQ(c.copy(buf, 99), 3U);
ASSERT_EQ(buf[0], c[0]);
ASSERT_EQ(buf[1], c[1]);
ASSERT_EQ(buf[2], c[2]);
ASSERT_EQ(buf[3], a[3]);
ASSERT_EQ(StringPiece::npos, std::string::npos);
ASSERT_EQ(a.find(b), 0U);
ASSERT_EQ(a.find(b, 1), StringPiece::npos);
ASSERT_EQ(a.find(c), 23U);
ASSERT_EQ(a.find(c, 9), 23U);
ASSERT_EQ(a.find(c, StringPiece::npos), StringPiece::npos);
ASSERT_EQ(b.find(c), StringPiece::npos);
ASSERT_EQ(b.find(c, StringPiece::npos), StringPiece::npos);
ASSERT_EQ(a.find(d), 0U);
ASSERT_EQ(a.find(e), 0U);
ASSERT_EQ(a.find(d, 12), 12U);
ASSERT_EQ(a.find(e, 17), 17U);
StringPiece g("xx not found bb");
ASSERT_EQ(a.find(g), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(d.find(b), StringPiece::npos);
ASSERT_EQ(e.find(b), StringPiece::npos);
ASSERT_EQ(d.find(b, 4), StringPiece::npos);
ASSERT_EQ(e.find(b, 7), StringPiece::npos);
size_t empty_search_pos = std::string().find(std::string());
ASSERT_EQ(d.find(d), empty_search_pos);
ASSERT_EQ(d.find(e), empty_search_pos);
ASSERT_EQ(e.find(d), empty_search_pos);
ASSERT_EQ(e.find(e), empty_search_pos);
ASSERT_EQ(d.find(d, 4), std::string().find(std::string(), 4));
ASSERT_EQ(d.find(e, 4), std::string().find(std::string(), 4));
ASSERT_EQ(e.find(d, 4), std::string().find(std::string(), 4));
ASSERT_EQ(e.find(e, 4), std::string().find(std::string(), 4));
ASSERT_EQ(a.find('a'), 0U);
ASSERT_EQ(a.find('c'), 2U);
ASSERT_EQ(a.find('z'), 25U);
ASSERT_EQ(a.find('$'), StringPiece::npos);
ASSERT_EQ(a.find('\0'), StringPiece::npos);
ASSERT_EQ(f.find('\0'), 3U);
ASSERT_EQ(f.find('3'), 2U);
ASSERT_EQ(f.find('5'), 5U);
ASSERT_EQ(g.find('o'), 4U);
ASSERT_EQ(g.find('o', 4), 4U);
ASSERT_EQ(g.find('o', 5), 8U);
ASSERT_EQ(a.find('b', 5), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(d.find('\0'), StringPiece::npos);
ASSERT_EQ(e.find('\0'), StringPiece::npos);
ASSERT_EQ(d.find('\0', 4), StringPiece::npos);
ASSERT_EQ(e.find('\0', 7), StringPiece::npos);
ASSERT_EQ(d.find('x'), StringPiece::npos);
ASSERT_EQ(e.find('x'), StringPiece::npos);
ASSERT_EQ(d.find('x', 4), StringPiece::npos);
ASSERT_EQ(e.find('x', 7), StringPiece::npos);
ASSERT_EQ(a.rfind(b), 0U);
ASSERT_EQ(a.rfind(b, 1), 0U);
ASSERT_EQ(a.rfind(c), 23U);
ASSERT_EQ(a.rfind(c, 22U), StringPiece::npos);
ASSERT_EQ(a.rfind(c, 1U), StringPiece::npos);
ASSERT_EQ(a.rfind(c, 0U), StringPiece::npos);
ASSERT_EQ(b.rfind(c), StringPiece::npos);
ASSERT_EQ(b.rfind(c, 0U), StringPiece::npos);
ASSERT_EQ(a.rfind(d), (size_t) a.as_string().rfind(std::string()));
ASSERT_EQ(a.rfind(e), a.as_string().rfind(std::string()));
ASSERT_EQ(a.rfind(d, 12), 12U);
ASSERT_EQ(a.rfind(e, 17), 17U);
ASSERT_EQ(a.rfind(g), StringPiece::npos);
ASSERT_EQ(d.rfind(b), StringPiece::npos);
ASSERT_EQ(e.rfind(b), StringPiece::npos);
ASSERT_EQ(d.rfind(b, 4), StringPiece::npos);
ASSERT_EQ(e.rfind(b, 7), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(d.rfind(d, 4), std::string().rfind(std::string()));
ASSERT_EQ(e.rfind(d, 7), std::string().rfind(std::string()));
ASSERT_EQ(d.rfind(e, 4), std::string().rfind(std::string()));
ASSERT_EQ(e.rfind(e, 7), std::string().rfind(std::string()));
ASSERT_EQ(d.rfind(d), std::string().rfind(std::string()));
ASSERT_EQ(e.rfind(d), std::string().rfind(std::string()));
ASSERT_EQ(d.rfind(e), std::string().rfind(std::string()));
ASSERT_EQ(e.rfind(e), std::string().rfind(std::string()));
ASSERT_EQ(g.rfind('o'), 8U);
ASSERT_EQ(g.rfind('q'), StringPiece::npos);
ASSERT_EQ(g.rfind('o', 8), 8U);
ASSERT_EQ(g.rfind('o', 7), 4U);
ASSERT_EQ(g.rfind('o', 3), StringPiece::npos);
ASSERT_EQ(f.rfind('\0'), 3U);
ASSERT_EQ(f.rfind('\0', 12), 3U);
ASSERT_EQ(f.rfind('3'), 2U);
ASSERT_EQ(f.rfind('5'), 5U);
// empty string nonsense
ASSERT_EQ(d.rfind('o'), StringPiece::npos);
ASSERT_EQ(e.rfind('o'), StringPiece::npos);
ASSERT_EQ(d.rfind('o', 4), StringPiece::npos);
ASSERT_EQ(e.rfind('o', 7), StringPiece::npos);
ASSERT_EQ(
StringPiece("one,two:three;four").find_first_of(StringPiece(",:"), 1),
3U);
ASSERT_EQ(a.find_first_of(b), 0U);
ASSERT_EQ(a.find_first_of(b, 0), 0U);
ASSERT_EQ(a.find_first_of(b, 1), 1U);
ASSERT_EQ(a.find_first_of(b, 2), 2U);
ASSERT_EQ(a.find_first_of(b, 3), StringPiece::npos);
ASSERT_EQ(a.find_first_of(c), 23U);
ASSERT_EQ(a.find_first_of(c, 23), 23U);
ASSERT_EQ(a.find_first_of(c, 24), 24U);
ASSERT_EQ(a.find_first_of(c, 25), 25U);
ASSERT_EQ(a.find_first_of(c, 26), StringPiece::npos);
ASSERT_EQ(g.find_first_of(b), 13U);
ASSERT_EQ(g.find_first_of(c), 0U);
ASSERT_EQ(a.find_first_of(f), StringPiece::npos);
ASSERT_EQ(f.find_first_of(a), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(a.find_first_of(d), StringPiece::npos);
ASSERT_EQ(a.find_first_of(e), StringPiece::npos);
ASSERT_EQ(d.find_first_of(b), StringPiece::npos);
ASSERT_EQ(e.find_first_of(b), StringPiece::npos);
ASSERT_EQ(d.find_first_of(d), StringPiece::npos);
ASSERT_EQ(e.find_first_of(d), StringPiece::npos);
ASSERT_EQ(d.find_first_of(e), StringPiece::npos);
ASSERT_EQ(e.find_first_of(e), StringPiece::npos);
ASSERT_EQ(a.find_first_not_of(b), 3U);
ASSERT_EQ(a.find_first_not_of(c), 0U);
ASSERT_EQ(b.find_first_not_of(a), StringPiece::npos);
ASSERT_EQ(c.find_first_not_of(a), StringPiece::npos);
ASSERT_EQ(f.find_first_not_of(a), 0U);
ASSERT_EQ(a.find_first_not_of(f), 0U);
ASSERT_EQ(a.find_first_not_of(d), 0U);
ASSERT_EQ(a.find_first_not_of(e), 0U);
// empty string nonsense
ASSERT_EQ(d.find_first_not_of(a), StringPiece::npos);
ASSERT_EQ(e.find_first_not_of(a), StringPiece::npos);
ASSERT_EQ(d.find_first_not_of(d), StringPiece::npos);
ASSERT_EQ(e.find_first_not_of(d), StringPiece::npos);
ASSERT_EQ(d.find_first_not_of(e), StringPiece::npos);
ASSERT_EQ(e.find_first_not_of(e), StringPiece::npos);
StringPiece h("====");
ASSERT_EQ(h.find_first_not_of('='), StringPiece::npos);
ASSERT_EQ(h.find_first_not_of('=', 3), StringPiece::npos);
ASSERT_EQ(h.find_first_not_of('\0'), 0U);
ASSERT_EQ(g.find_first_not_of('x'), 2U);
ASSERT_EQ(f.find_first_not_of('\0'), 0U);
ASSERT_EQ(f.find_first_not_of('\0', 3), 4U);
ASSERT_EQ(f.find_first_not_of('\0', 2), 2U);
// empty string nonsense
ASSERT_EQ(d.find_first_not_of('x'), StringPiece::npos);
ASSERT_EQ(e.find_first_not_of('x'), StringPiece::npos);
ASSERT_EQ(d.find_first_not_of('\0'), StringPiece::npos);
ASSERT_EQ(e.find_first_not_of('\0'), StringPiece::npos);
// StringPiece g("xx not found bb");
StringPiece i("56");
ASSERT_EQ(h.find_last_of(a), StringPiece::npos);
ASSERT_EQ(g.find_last_of(a), g.size()-1);
ASSERT_EQ(a.find_last_of(b), 2U);
ASSERT_EQ(a.find_last_of(c), a.size()-1);
ASSERT_EQ(f.find_last_of(i), 6U);
ASSERT_EQ(a.find_last_of('a'), 0U);
ASSERT_EQ(a.find_last_of('b'), 1U);
ASSERT_EQ(a.find_last_of('z'), 25U);
ASSERT_EQ(a.find_last_of('a', 5), 0U);
ASSERT_EQ(a.find_last_of('b', 5), 1U);
ASSERT_EQ(a.find_last_of('b', 0), StringPiece::npos);
ASSERT_EQ(a.find_last_of('z', 25), 25U);
ASSERT_EQ(a.find_last_of('z', 24), StringPiece::npos);
ASSERT_EQ(f.find_last_of(i, 5), 5U);
ASSERT_EQ(f.find_last_of(i, 6), 6U);
ASSERT_EQ(f.find_last_of(a, 4), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(f.find_last_of(d), StringPiece::npos);
ASSERT_EQ(f.find_last_of(e), StringPiece::npos);
ASSERT_EQ(f.find_last_of(d, 4), StringPiece::npos);
ASSERT_EQ(f.find_last_of(e, 4), StringPiece::npos);
ASSERT_EQ(d.find_last_of(d), StringPiece::npos);
ASSERT_EQ(d.find_last_of(e), StringPiece::npos);
ASSERT_EQ(e.find_last_of(d), StringPiece::npos);
ASSERT_EQ(e.find_last_of(e), StringPiece::npos);
ASSERT_EQ(d.find_last_of(f), StringPiece::npos);
ASSERT_EQ(e.find_last_of(f), StringPiece::npos);
ASSERT_EQ(d.find_last_of(d, 4), StringPiece::npos);
ASSERT_EQ(d.find_last_of(e, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_of(d, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_of(e, 4), StringPiece::npos);
ASSERT_EQ(d.find_last_of(f, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_of(f, 4), StringPiece::npos);
ASSERT_EQ(a.find_last_not_of(b), a.size()-1);
ASSERT_EQ(a.find_last_not_of(c), 22U);
ASSERT_EQ(b.find_last_not_of(a), StringPiece::npos);
ASSERT_EQ(b.find_last_not_of(b), StringPiece::npos);
ASSERT_EQ(f.find_last_not_of(i), 4U);
ASSERT_EQ(a.find_last_not_of(c, 24), 22U);
ASSERT_EQ(a.find_last_not_of(b, 3), 3U);
ASSERT_EQ(a.find_last_not_of(b, 2), StringPiece::npos);
// empty string nonsense
ASSERT_EQ(f.find_last_not_of(d), f.size()-1);
ASSERT_EQ(f.find_last_not_of(e), f.size()-1);
ASSERT_EQ(f.find_last_not_of(d, 4), 4U);
ASSERT_EQ(f.find_last_not_of(e, 4), 4U);
ASSERT_EQ(d.find_last_not_of(d), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of(e), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(d), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(e), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of(f), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(f), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of(d, 4), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of(e, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(d, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(e, 4), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of(f, 4), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of(f, 4), StringPiece::npos);
ASSERT_EQ(h.find_last_not_of('x'), h.size() - 1);
ASSERT_EQ(h.find_last_not_of('='), StringPiece::npos);
ASSERT_EQ(b.find_last_not_of('c'), 1U);
ASSERT_EQ(h.find_last_not_of('x', 2), 2U);
ASSERT_EQ(h.find_last_not_of('=', 2), StringPiece::npos);
ASSERT_EQ(b.find_last_not_of('b', 1), 0U);
// empty string nonsense
ASSERT_EQ(d.find_last_not_of('x'), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of('x'), StringPiece::npos);
ASSERT_EQ(d.find_last_not_of('\0'), StringPiece::npos);
ASSERT_EQ(e.find_last_not_of('\0'), StringPiece::npos);
ASSERT_EQ(a.substr(0, 3), b);
ASSERT_EQ(a.substr(23), c);
ASSERT_EQ(a.substr(23, 3), c);
ASSERT_EQ(a.substr(23, 99), c);
ASSERT_EQ(a.substr(0), a);
ASSERT_EQ(a.substr(3, 2), "de");
// empty string nonsense
ASSERT_EQ(a.substr(99, 2), e);
ASSERT_EQ(d.substr(99), e);
ASSERT_EQ(d.substr(0, 99), e);
ASSERT_EQ(d.substr(99, 99), e);
}
TYPED_TEST(CommonStringPieceTest, CheckCustom) {
TypeParam foobar(TestFixture::as_string("foobar"));
BasicStringPiece<TypeParam> a(foobar);
TypeParam s1(TestFixture::as_string("123"));
s1 += static_cast<typename TypeParam::value_type>('\0');
s1 += TestFixture::as_string("456");
BasicStringPiece<TypeParam> b(s1);
BasicStringPiece<TypeParam> e;
TypeParam s2;
// remove_prefix
BasicStringPiece<TypeParam> c(a);
c.remove_prefix(3);
ASSERT_EQ(c, TestFixture::as_string("bar"));
c = a;
c.remove_prefix(0);
ASSERT_EQ(c, a);
c.remove_prefix(c.size());
ASSERT_EQ(c, e);
// remove_suffix
c = a;
c.remove_suffix(3);
ASSERT_EQ(c, TestFixture::as_string("foo"));
c = a;
c.remove_suffix(0);
ASSERT_EQ(c, a);
c.remove_suffix(c.size());
ASSERT_EQ(c, e);
// set
c.set(foobar.c_str());
ASSERT_EQ(c, a);
c.set(foobar.c_str(), 6);
ASSERT_EQ(c, a);
c.set(foobar.c_str(), 0);
ASSERT_EQ(c, e);
c.set(foobar.c_str(), 7); // Note, has an embedded NULL
ASSERT_NE(c, a);
// as_string
TypeParam s3(a.as_string().c_str(), 7); // Note, has an embedded NULL
ASSERT_TRUE(c == s3);
TypeParam s4(e.as_string());
ASSERT_TRUE(s4.empty());
}
TEST(StringPieceTest, CheckCustom) {
StringPiece a("foobar");
std::string s1("123");
s1 += '\0';
s1 += "456";
StringPiece b(s1);
StringPiece e;
std::string s2;
// CopyToString
a.CopyToString(&s2);
ASSERT_EQ(s2.size(), 6U);
ASSERT_EQ(s2, "foobar");
b.CopyToString(&s2);
ASSERT_EQ(s2.size(), 7U);
ASSERT_EQ(s1, s2);
e.CopyToString(&s2);
ASSERT_TRUE(s2.empty());
// AppendToString
s2.erase();
a.AppendToString(&s2);
ASSERT_EQ(s2.size(), 6U);
ASSERT_EQ(s2, "foobar");
a.AppendToString(&s2);
ASSERT_EQ(s2.size(), 12U);
ASSERT_EQ(s2, "foobarfoobar");
// starts_with
ASSERT_TRUE(a.starts_with(a));
ASSERT_TRUE(a.starts_with("foo"));
ASSERT_TRUE(a.starts_with(e));
ASSERT_TRUE(b.starts_with(s1));
ASSERT_TRUE(b.starts_with(b));
ASSERT_TRUE(b.starts_with(e));
ASSERT_TRUE(e.starts_with(""));
ASSERT_TRUE(!a.starts_with(b));
ASSERT_TRUE(!b.starts_with(a));
ASSERT_TRUE(!e.starts_with(a));
// ends with
ASSERT_TRUE(a.ends_with(a));
ASSERT_TRUE(a.ends_with("bar"));
ASSERT_TRUE(a.ends_with(e));
ASSERT_TRUE(b.ends_with(s1));
ASSERT_TRUE(b.ends_with(b));
ASSERT_TRUE(b.ends_with(e));
ASSERT_TRUE(e.ends_with(""));
ASSERT_TRUE(!a.ends_with(b));
ASSERT_TRUE(!b.ends_with(a));
ASSERT_TRUE(!e.ends_with(a));
StringPiece c;
c.set(static_cast<const void*>("foobar"), 6);
ASSERT_EQ(c, a);
c.set(static_cast<const void*>("foobar"), 0);
ASSERT_EQ(c, e);
c.set(static_cast<const void*>("foobar"), 7);
ASSERT_NE(c, a);
}
TYPED_TEST(CommonStringPieceTest, CheckNULL) {
// we used to crash here, but now we don't.
BasicStringPiece<TypeParam> s(NULL);
ASSERT_EQ(s.data(), (const typename TypeParam::value_type*)NULL);
ASSERT_EQ(s.size(), 0U);
s.set(NULL);
ASSERT_EQ(s.data(), (const typename TypeParam::value_type*)NULL);
ASSERT_EQ(s.size(), 0U);
TypeParam str = s.as_string();
ASSERT_EQ(str.length(), 0U);
ASSERT_EQ(str, TypeParam());
}
TYPED_TEST(CommonStringPieceTest, CheckComparisons2) {
TypeParam alphabet(TestFixture::as_string("abcdefghijklmnopqrstuvwxyz"));
TypeParam alphabet_z(TestFixture::as_string("abcdefghijklmnopqrstuvwxyzz"));
TypeParam alphabet_y(TestFixture::as_string("abcdefghijklmnopqrstuvwxyy"));
BasicStringPiece<TypeParam> abc(alphabet);
// check comparison operations on strings longer than 4 bytes.
ASSERT_TRUE(abc == BasicStringPiece<TypeParam>(alphabet));
ASSERT_TRUE(abc.compare(BasicStringPiece<TypeParam>(alphabet)) == 0);
ASSERT_TRUE(abc < BasicStringPiece<TypeParam>(alphabet_z));
ASSERT_TRUE(abc.compare(BasicStringPiece<TypeParam>(alphabet_z)) < 0);
ASSERT_TRUE(abc > BasicStringPiece<TypeParam>(alphabet_y));
ASSERT_TRUE(abc.compare(BasicStringPiece<TypeParam>(alphabet_y)) > 0);
}
// Test operations only supported by std::string version.
TEST(StringPieceTest, CheckComparisons2) {
StringPiece abc("abcdefghijklmnopqrstuvwxyz");
// starts_with
ASSERT_TRUE(abc.starts_with(abc));
ASSERT_TRUE(abc.starts_with("abcdefghijklm"));
ASSERT_TRUE(!abc.starts_with("abcdefguvwxyz"));
// ends_with
ASSERT_TRUE(abc.ends_with(abc));
ASSERT_TRUE(!abc.ends_with("abcdefguvwxyz"));
ASSERT_TRUE(abc.ends_with("nopqrstuvwxyz"));
}
TYPED_TEST(CommonStringPieceTest, StringCompareNotAmbiguous) {
ASSERT_TRUE(TestFixture::as_string("hello").c_str() ==
TestFixture::as_string("hello"));
ASSERT_TRUE(TestFixture::as_string("hello").c_str() <
TestFixture::as_string("world"));
}
TYPED_TEST(CommonStringPieceTest, HeterogenousStringPieceEquals) {
TypeParam hello(TestFixture::as_string("hello"));
ASSERT_TRUE(BasicStringPiece<TypeParam>(hello) == hello);
ASSERT_TRUE(hello.c_str() == BasicStringPiece<TypeParam>(hello));
}
// string16-specific stuff
TEST(StringPiece16Test, CheckSTL) {
// Check some non-ascii characters.
string16 fifth(ASCIIToUTF16("123"));
fifth.push_back(0x0000);
fifth.push_back(0xd8c5);
fifth.push_back(0xdffe);
StringPiece16 f(fifth);
ASSERT_EQ(f[3], '\0');
ASSERT_EQ(f[5], static_cast<char16>(0xdffe));
ASSERT_EQ(f.size(), 6U);
}
TEST(StringPiece16Test, CheckConversion) {
// Make sure that we can convert from UTF8 to UTF16 and back. We use a two
// byte character (G clef) to test this.
ASSERT_EQ(
UTF16ToUTF8(
StringPiece16(UTF8ToUTF16("\xf0\x9d\x84\x9e")).as_string()),
"\xf0\x9d\x84\x9e");
}
TYPED_TEST(CommonStringPieceTest, CheckConstructors) {
TypeParam str(TestFixture::as_string("hello world"));
TypeParam empty;
ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str));
ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str.c_str()));
ASSERT_TRUE(TestFixture::as_string("hello") ==
BasicStringPiece<TypeParam>(str.c_str(), 5));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(str.c_str(), 0U));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(NULL));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(NULL, 0U));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>());
ASSERT_TRUE(str == BasicStringPiece<TypeParam>(str.begin(), str.end()));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(str.begin(), str.begin()));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(empty));
ASSERT_TRUE(empty == BasicStringPiece<TypeParam>(empty.begin(), empty.end()));
}
} // namespace base
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