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Diffstat (limited to 'base/strings/string_piece_unittest.cc')
| -rw-r--r-- | base/strings/string_piece_unittest.cc | 677 |
1 files changed, 677 insertions, 0 deletions
diff --git a/base/strings/string_piece_unittest.cc b/base/strings/string_piece_unittest.cc new file mode 100644 index 0000000..6265888 --- /dev/null +++ b/base/strings/string_piece_unittest.cc @@ -0,0 +1,677 @@ +// 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/string16.h" +#include "base/strings/string_piece.h" +#include "base/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 |