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Diffstat (limited to 'NorthstarDedicatedTest/include/protobuf/stubs/stringpiece_unittest.cc')
| -rw-r--r-- | NorthstarDedicatedTest/include/protobuf/stubs/stringpiece_unittest.cc | 695 |
1 files changed, 695 insertions, 0 deletions
diff --git a/NorthstarDedicatedTest/include/protobuf/stubs/stringpiece_unittest.cc b/NorthstarDedicatedTest/include/protobuf/stubs/stringpiece_unittest.cc new file mode 100644 index 00000000..60c410c3 --- /dev/null +++ b/NorthstarDedicatedTest/include/protobuf/stubs/stringpiece_unittest.cc @@ -0,0 +1,695 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +#include <stubs/stringpiece.h> + +#include <iterator> +#include <map> +#include <string> +#include <utility> +#include <vector> + +#include <testing/googletest.h> +#include <stubs/hash.h> +#include <gtest/gtest.h> + +namespace google { +namespace protobuf { +namespace { +TEST(StringPiece, Ctor) { + { + // Null. + StringPiece s10; + EXPECT_TRUE(s10.data() == nullptr); + EXPECT_EQ(0, s10.length()); + } + + { + // const char* without length. + const char* hello = "hello"; + StringPiece s20(hello); + EXPECT_TRUE(s20.data() == hello); + EXPECT_EQ(5, s20.length()); + + // const char* with length. + StringPiece s21(hello, 4); + EXPECT_TRUE(s21.data() == hello); + EXPECT_EQ(4, s21.length()); + + // Not recommended, but valid C++ + StringPiece s22(hello, 6); + EXPECT_TRUE(s22.data() == hello); + EXPECT_EQ(6, s22.length()); + } + + { + // std::string. + std::string hola = "hola"; + StringPiece s30(hola); + EXPECT_TRUE(s30.data() == hola.data()); + EXPECT_EQ(4, s30.length()); + + // std::string with embedded '\0'. + hola.push_back('\0'); + hola.append("h2"); + hola.push_back('\0'); + StringPiece s31(hola); + EXPECT_TRUE(s31.data() == hola.data()); + EXPECT_EQ(8, s31.length()); + } + +#if defined(HAS_GLOBAL_STRING) + { + // ::string + std::string bonjour = "bonjour"; + StringPiece s40(bonjour); + EXPECT_TRUE(s40.data() == bonjour.data()); + EXPECT_EQ(7, s40.length()); + } +#endif + + // TODO(mec): StringPiece(StringPiece x, int pos); + // TODO(mec): StringPiece(StringPiece x, int pos, int len); + // TODO(mec): StringPiece(const StringPiece&); +} + +TEST(StringPiece, STLComparator) { + std::string s1("foo"); + std::string s2("bar"); + std::string s3("baz"); + + StringPiece p1(s1); + StringPiece p2(s2); + StringPiece p3(s3); + + typedef std::map<StringPiece, int> TestMap; + TestMap map; + + map.insert(std::make_pair(p1, 0)); + map.insert(std::make_pair(p2, 1)); + map.insert(std::make_pair(p3, 2)); + EXPECT_EQ(map.size(), 3); + + TestMap::const_iterator iter = map.begin(); + EXPECT_EQ(iter->second, 1); + ++iter; + EXPECT_EQ(iter->second, 2); + ++iter; + EXPECT_EQ(iter->second, 0); + ++iter; + EXPECT_TRUE(iter == map.end()); + + TestMap::iterator new_iter = map.find("zot"); + EXPECT_TRUE(new_iter == map.end()); + + new_iter = map.find("bar"); + EXPECT_TRUE(new_iter != map.end()); + + map.erase(new_iter); + EXPECT_EQ(map.size(), 2); + + iter = map.begin(); + EXPECT_EQ(iter->second, 2); + ++iter; + EXPECT_EQ(iter->second, 0); + ++iter; + EXPECT_TRUE(iter == map.end()); +} + +TEST(StringPiece, ComparisonOperators) { +#define COMPARE(result, op, x, y) \ + EXPECT_EQ(result, StringPiece((x)) op StringPiece((y))); \ + EXPECT_EQ(result, StringPiece((x)).compare(StringPiece((y))) op 0) + + COMPARE(true, ==, "", ""); + COMPARE(true, ==, "", nullptr); + COMPARE(true, ==, nullptr, ""); + COMPARE(true, ==, "a", "a"); + COMPARE(true, ==, "aa", "aa"); + COMPARE(false, ==, "a", ""); + COMPARE(false, ==, "", "a"); + COMPARE(false, ==, "a", "b"); + COMPARE(false, ==, "a", "aa"); + COMPARE(false, ==, "aa", "a"); + + COMPARE(false, !=, "", ""); + COMPARE(false, !=, "a", "a"); + COMPARE(false, !=, "aa", "aa"); + COMPARE(true, !=, "a", ""); + COMPARE(true, !=, "", "a"); + COMPARE(true, !=, "a", "b"); + COMPARE(true, !=, "a", "aa"); + COMPARE(true, !=, "aa", "a"); + + COMPARE(true, <, "a", "b"); + COMPARE(true, <, "a", "aa"); + COMPARE(true, <, "aa", "b"); + COMPARE(true, <, "aa", "bb"); + COMPARE(false, <, "a", "a"); + COMPARE(false, <, "b", "a"); + COMPARE(false, <, "aa", "a"); + COMPARE(false, <, "b", "aa"); + COMPARE(false, <, "bb", "aa"); + + COMPARE(true, <=, "a", "a"); + COMPARE(true, <=, "a", "b"); + COMPARE(true, <=, "a", "aa"); + COMPARE(true, <=, "aa", "b"); + COMPARE(true, <=, "aa", "bb"); + COMPARE(false, <=, "b", "a"); + COMPARE(false, <=, "aa", "a"); + COMPARE(false, <=, "b", "aa"); + COMPARE(false, <=, "bb", "aa"); + + COMPARE(false, >=, "a", "b"); + COMPARE(false, >=, "a", "aa"); + COMPARE(false, >=, "aa", "b"); + COMPARE(false, >=, "aa", "bb"); + COMPARE(true, >=, "a", "a"); + COMPARE(true, >=, "b", "a"); + COMPARE(true, >=, "aa", "a"); + COMPARE(true, >=, "b", "aa"); + COMPARE(true, >=, "bb", "aa"); + + COMPARE(false, >, "a", "a"); + COMPARE(false, >, "a", "b"); + COMPARE(false, >, "a", "aa"); + COMPARE(false, >, "aa", "b"); + COMPARE(false, >, "aa", "bb"); + COMPARE(true, >, "b", "a"); + COMPARE(true, >, "aa", "a"); + COMPARE(true, >, "b", "aa"); + COMPARE(true, >, "bb", "aa"); + + std::string x; + for (int i = 0; i < 256; i++) { + x += 'a'; + std::string y = x; + COMPARE(true, ==, x, y); + for (int j = 0; j < i; j++) { + std::string z = x; + z[j] = 'b'; // Differs in position 'j' + COMPARE(false, ==, x, z); + COMPARE(true, <, x, z); + COMPARE(true, >, z, x); + if (j + 1 < i) { + z[j + 1] = 'A'; // Differs in position 'j+1' as well + COMPARE(false, ==, x, z); + COMPARE(true, <, x, z); + COMPARE(true, >, z, x); + z[j + 1] = 'z'; // Differs in position 'j+1' as well + COMPARE(false, ==, x, z); + COMPARE(true, <, x, z); + COMPARE(true, >, z, x); + } + } + } + +#undef COMPARE +} + +TEST(StringPiece, STL1) { + const StringPiece a("abcdefghijklmnopqrstuvwxyz"); + const StringPiece b("abc"); + const StringPiece c("xyz"); + const StringPiece d("foobar"); + const StringPiece e; + std::string temp("123"); + temp += '\0'; + temp += "456"; + const StringPiece f(temp); + + EXPECT_EQ(a[6], 'g'); + EXPECT_EQ(b[0], 'a'); + EXPECT_EQ(c[2], 'z'); + EXPECT_EQ(f[3], '\0'); + EXPECT_EQ(f[5], '5'); + + EXPECT_EQ(*d.data(), 'f'); + EXPECT_EQ(d.data()[5], 'r'); + EXPECT_TRUE(e.data() == nullptr); + + EXPECT_EQ(*a.begin(), 'a'); + EXPECT_EQ(*(b.begin() + 2), 'c'); + EXPECT_EQ(*(c.end() - 1), 'z'); + + EXPECT_EQ(*a.rbegin(), 'z'); + EXPECT_EQ(*(b.rbegin() + 2), 'a'); + EXPECT_EQ(*(c.rend() - 1), 'x'); + EXPECT_TRUE(a.rbegin() + 26 == a.rend()); + + EXPECT_EQ(a.size(), 26); + EXPECT_EQ(b.size(), 3); + EXPECT_EQ(c.size(), 3); + EXPECT_EQ(d.size(), 6); + EXPECT_EQ(e.size(), 0); + EXPECT_EQ(f.size(), 7); + + EXPECT_TRUE(!d.empty()); + EXPECT_TRUE(d.begin() != d.end()); + EXPECT_TRUE(d.begin() + 6 == d.end()); + + EXPECT_TRUE(e.empty()); + EXPECT_TRUE(e.begin() == e.end()); + + EXPECT_GE(a.max_size(), a.capacity()); + EXPECT_GE(a.capacity(), a.size()); + + char buf[4] = { '%', '%', '%', '%' }; + EXPECT_EQ(a.copy(buf, 4), 4); + EXPECT_EQ(buf[0], a[0]); + EXPECT_EQ(buf[1], a[1]); + EXPECT_EQ(buf[2], a[2]); + EXPECT_EQ(buf[3], a[3]); + EXPECT_EQ(a.copy(buf, 3, 7), 3); + EXPECT_EQ(buf[0], a[7]); + EXPECT_EQ(buf[1], a[8]); + EXPECT_EQ(buf[2], a[9]); + EXPECT_EQ(buf[3], a[3]); + EXPECT_EQ(c.copy(buf, 99), 3); + EXPECT_EQ(buf[0], c[0]); + EXPECT_EQ(buf[1], c[1]); + EXPECT_EQ(buf[2], c[2]); + EXPECT_EQ(buf[3], a[3]); +} + +// Separated from STL1() because some compilers produce an overly +// large stack frame for the combined function. +TEST(StringPiece, STL2) { + const StringPiece a("abcdefghijklmnopqrstuvwxyz"); + const StringPiece b("abc"); + const StringPiece c("xyz"); + const StringPiece e; + const StringPiece f("123" "\0" "456", 7); + + EXPECT_EQ(StringPiece::npos, std::string::npos); + + EXPECT_EQ(a.find(b), 0); + EXPECT_EQ(a.find(b, 1), StringPiece::npos); + EXPECT_EQ(a.find(c), 23); + EXPECT_EQ(a.find(c, 9), 23); + EXPECT_EQ(a.find(c, StringPiece::npos), StringPiece::npos); + EXPECT_EQ(b.find(c), StringPiece::npos); + EXPECT_EQ(b.find(c, StringPiece::npos), StringPiece::npos); + EXPECT_EQ(a.find(e), 0); + EXPECT_EQ(a.find(e, 17), 17); + StringPiece g("xx not found bb"); + EXPECT_EQ(a.find(g), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(e.find(b), StringPiece::npos); + EXPECT_EQ(e.find(b, 7), StringPiece::npos); + + size_t empty_search_pos = std::string().find(std::string()); + EXPECT_EQ(e.find(e), empty_search_pos); + EXPECT_EQ(e.find(e, 4), std::string().find(std::string(), 4)); + + EXPECT_EQ(a.find('a'), 0); + EXPECT_EQ(a.find('c'), 2); + EXPECT_EQ(a.find('z'), 25); + EXPECT_EQ(a.find('$'), StringPiece::npos); + EXPECT_EQ(a.find('\0'), StringPiece::npos); + EXPECT_EQ(f.find('\0'), 3); + EXPECT_EQ(f.find('3'), 2); + EXPECT_EQ(f.find('5'), 5); + EXPECT_EQ(g.find('o'), 4); + EXPECT_EQ(g.find('o', 4), 4); + EXPECT_EQ(g.find('o', 5), 8); + EXPECT_EQ(a.find('b', 5), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(e.find('\0'), StringPiece::npos); + EXPECT_EQ(e.find('\0', 7), StringPiece::npos); + EXPECT_EQ(e.find('x'), StringPiece::npos); + EXPECT_EQ(e.find('x', 7), StringPiece::npos); + + EXPECT_EQ(a.rfind(b), 0); + EXPECT_EQ(a.rfind(b, 1), 0); + EXPECT_EQ(a.rfind(c), 23); + EXPECT_EQ(a.rfind(c, 22), StringPiece::npos); + EXPECT_EQ(a.rfind(c, 1), StringPiece::npos); + EXPECT_EQ(a.rfind(c, 0), StringPiece::npos); + EXPECT_EQ(b.rfind(c), StringPiece::npos); + EXPECT_EQ(b.rfind(c, 0), StringPiece::npos); + EXPECT_EQ(a.rfind(e), a.as_string().rfind(std::string())); + EXPECT_EQ(a.rfind(e, 17), 17); + EXPECT_EQ(a.rfind(g), StringPiece::npos); + EXPECT_EQ(e.rfind(b), StringPiece::npos); + EXPECT_EQ(e.rfind(b, 7), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(e.rfind(e, 7), std::string().rfind(std::string())); + EXPECT_EQ(e.rfind(e), std::string().rfind(std::string())); + + EXPECT_EQ(g.rfind('o'), 8); + EXPECT_EQ(g.rfind('q'), StringPiece::npos); + EXPECT_EQ(g.rfind('o', 8), 8); + EXPECT_EQ(g.rfind('o', 7), 4); + EXPECT_EQ(g.rfind('o', 3), StringPiece::npos); + EXPECT_EQ(f.rfind('\0'), 3); + EXPECT_EQ(f.rfind('\0', 12), 3); + EXPECT_EQ(f.rfind('3'), 2); + EXPECT_EQ(f.rfind('5'), 5); + // empty string nonsense + EXPECT_EQ(e.rfind('o'), StringPiece::npos); + EXPECT_EQ(e.rfind('o', 7), StringPiece::npos); + + EXPECT_EQ(a.find_first_of(b), 0); + EXPECT_EQ(a.find_first_of(b, 0), 0); + EXPECT_EQ(a.find_first_of(b, 1), 1); + EXPECT_EQ(a.find_first_of(b, 2), 2); + EXPECT_EQ(a.find_first_of(b, 3), StringPiece::npos); + EXPECT_EQ(a.find_first_of(c), 23); + EXPECT_EQ(a.find_first_of(c, 23), 23); + EXPECT_EQ(a.find_first_of(c, 24), 24); + EXPECT_EQ(a.find_first_of(c, 25), 25); + EXPECT_EQ(a.find_first_of(c, 26), StringPiece::npos); + EXPECT_EQ(g.find_first_of(b), 13); + EXPECT_EQ(g.find_first_of(c), 0); + EXPECT_EQ(a.find_first_of(f), StringPiece::npos); + EXPECT_EQ(f.find_first_of(a), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(a.find_first_of(e), StringPiece::npos); + EXPECT_EQ(e.find_first_of(b), StringPiece::npos); + EXPECT_EQ(e.find_first_of(e), StringPiece::npos); + + EXPECT_EQ(a.find_first_not_of(b), 3); + EXPECT_EQ(a.find_first_not_of(c), 0); + EXPECT_EQ(b.find_first_not_of(a), StringPiece::npos); + EXPECT_EQ(c.find_first_not_of(a), StringPiece::npos); + EXPECT_EQ(f.find_first_not_of(a), 0); + EXPECT_EQ(a.find_first_not_of(f), 0); + EXPECT_EQ(a.find_first_not_of(e), 0); + // empty string nonsense + EXPECT_EQ(e.find_first_not_of(a), StringPiece::npos); + EXPECT_EQ(e.find_first_not_of(e), StringPiece::npos); + + StringPiece h("===="); + EXPECT_EQ(h.find_first_not_of('='), StringPiece::npos); + EXPECT_EQ(h.find_first_not_of('=', 3), StringPiece::npos); + EXPECT_EQ(h.find_first_not_of('\0'), 0); + EXPECT_EQ(g.find_first_not_of('x'), 2); + EXPECT_EQ(f.find_first_not_of('\0'), 0); + EXPECT_EQ(f.find_first_not_of('\0', 3), 4); + EXPECT_EQ(f.find_first_not_of('\0', 2), 2); + // empty string nonsense + EXPECT_EQ(e.find_first_not_of('x'), StringPiece::npos); + EXPECT_EQ(e.find_first_not_of('\0'), StringPiece::npos); + + // StringPiece g("xx not found bb"); + StringPiece i("56"); + EXPECT_EQ(h.find_last_of(a), StringPiece::npos); + EXPECT_EQ(g.find_last_of(a), g.size()-1); + EXPECT_EQ(a.find_last_of(b), 2); + EXPECT_EQ(a.find_last_of(c), a.size()-1); + EXPECT_EQ(f.find_last_of(i), 6); + EXPECT_EQ(a.find_last_of('a'), 0); + EXPECT_EQ(a.find_last_of('b'), 1); + EXPECT_EQ(a.find_last_of('z'), 25); + EXPECT_EQ(a.find_last_of('a', 5), 0); + EXPECT_EQ(a.find_last_of('b', 5), 1); + EXPECT_EQ(a.find_last_of('b', 0), StringPiece::npos); + EXPECT_EQ(a.find_last_of('z', 25), 25); + EXPECT_EQ(a.find_last_of('z', 24), StringPiece::npos); + EXPECT_EQ(f.find_last_of(i, 5), 5); + EXPECT_EQ(f.find_last_of(i, 6), 6); + EXPECT_EQ(f.find_last_of(a, 4), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(f.find_last_of(e), StringPiece::npos); + EXPECT_EQ(f.find_last_of(e, 4), StringPiece::npos); + EXPECT_EQ(e.find_last_of(e), StringPiece::npos); + EXPECT_EQ(e.find_last_of(f), StringPiece::npos); + EXPECT_EQ(e.find_last_of(e, 4), StringPiece::npos); + EXPECT_EQ(e.find_last_of(f, 4), StringPiece::npos); + + EXPECT_EQ(a.find_last_not_of(b), a.size()-1); + EXPECT_EQ(a.find_last_not_of(c), 22); + EXPECT_EQ(b.find_last_not_of(a), StringPiece::npos); + EXPECT_EQ(b.find_last_not_of(b), StringPiece::npos); + EXPECT_EQ(f.find_last_not_of(i), 4); + EXPECT_EQ(a.find_last_not_of(c, 24), 22); + EXPECT_EQ(a.find_last_not_of(b, 3), 3); + EXPECT_EQ(a.find_last_not_of(b, 2), StringPiece::npos); + // empty string nonsense + EXPECT_EQ(f.find_last_not_of(e), f.size()-1); + EXPECT_EQ(f.find_last_not_of(e, 4), 4); + EXPECT_EQ(e.find_last_not_of(e), StringPiece::npos); + EXPECT_EQ(e.find_last_not_of(f), StringPiece::npos); + EXPECT_EQ(e.find_last_not_of(e, 4), StringPiece::npos); + EXPECT_EQ(e.find_last_not_of(f, 4), StringPiece::npos); + + EXPECT_EQ(h.find_last_not_of('x'), h.size() - 1); + EXPECT_EQ(h.find_last_not_of('='), StringPiece::npos); + EXPECT_EQ(b.find_last_not_of('c'), 1); + EXPECT_EQ(h.find_last_not_of('x', 2), 2); + EXPECT_EQ(h.find_last_not_of('=', 2), StringPiece::npos); + EXPECT_EQ(b.find_last_not_of('b', 1), 0); + // empty string nonsense + EXPECT_EQ(e.find_last_not_of('x'), StringPiece::npos); + EXPECT_EQ(e.find_last_not_of('\0'), StringPiece::npos); + + EXPECT_EQ(a.substr(0, 3), b); + EXPECT_EQ(a.substr(23), c); + EXPECT_EQ(a.substr(23, 3), c); + EXPECT_EQ(a.substr(23, 99), c); + EXPECT_EQ(a.substr(0), a); + EXPECT_EQ(a.substr(3, 2), "de"); + // empty string nonsense + EXPECT_EQ(a.substr(99, 2), e); + EXPECT_EQ(e.substr(99), e); + EXPECT_EQ(e.substr(0, 99), e); + EXPECT_EQ(e.substr(99, 99), e); + // use of npos + EXPECT_EQ(a.substr(0, StringPiece::npos), a); + EXPECT_EQ(a.substr(23, StringPiece::npos), c); + EXPECT_EQ(a.substr(StringPiece::npos, 0), e); + EXPECT_EQ(a.substr(StringPiece::npos, 1), e); + EXPECT_EQ(a.substr(StringPiece::npos, StringPiece::npos), e); +} + +TEST(StringPiece, Custom) { + StringPiece a("foobar"); + std::string s1("123"); + s1 += '\0'; + s1 += "456"; + StringPiece b(s1); + StringPiece e; + std::string s2; + + // CopyToString + a.CopyToString(&s2); + EXPECT_EQ(s2.size(), 6); + EXPECT_EQ(s2, "foobar"); + b.CopyToString(&s2); + EXPECT_EQ(s2.size(), 7); + EXPECT_EQ(s1, s2); + e.CopyToString(&s2); + EXPECT_TRUE(s2.empty()); + + // AppendToString + s2.erase(); + a.AppendToString(&s2); + EXPECT_EQ(s2.size(), 6); + EXPECT_EQ(s2, "foobar"); + a.AppendToString(&s2); + EXPECT_EQ(s2.size(), 12); + EXPECT_EQ(s2, "foobarfoobar"); + + // starts_with + EXPECT_TRUE(a.starts_with(a)); + EXPECT_TRUE(a.starts_with("foo")); + EXPECT_TRUE(a.starts_with(e)); + EXPECT_TRUE(b.starts_with(s1)); + EXPECT_TRUE(b.starts_with(b)); + EXPECT_TRUE(b.starts_with(e)); + EXPECT_TRUE(e.starts_with("")); + EXPECT_TRUE(!a.starts_with(b)); + EXPECT_TRUE(!b.starts_with(a)); + EXPECT_TRUE(!e.starts_with(a)); + + // ends with + EXPECT_TRUE(a.ends_with(a)); + EXPECT_TRUE(a.ends_with("bar")); + EXPECT_TRUE(a.ends_with(e)); + EXPECT_TRUE(b.ends_with(s1)); + EXPECT_TRUE(b.ends_with(b)); + EXPECT_TRUE(b.ends_with(e)); + EXPECT_TRUE(e.ends_with("")); + EXPECT_TRUE(!a.ends_with(b)); + EXPECT_TRUE(!b.ends_with(a)); + EXPECT_TRUE(!e.ends_with(a)); + + // remove_prefix + StringPiece c(a); + c.remove_prefix(3); + EXPECT_EQ(c, "bar"); + c = a; + c.remove_prefix(0); + EXPECT_EQ(c, a); + c.remove_prefix(c.size()); + EXPECT_EQ(c, e); + + // remove_suffix + c = a; + c.remove_suffix(3); + EXPECT_EQ(c, "foo"); + c = a; + c.remove_suffix(0); + EXPECT_EQ(c, a); + c.remove_suffix(c.size()); + EXPECT_EQ(c, e); + + c = StringPiece("foobar", 7); + + // as_string + std::string s3(a.as_string().c_str(), 7); + EXPECT_EQ(c, s3); + std::string s4(e.as_string()); + EXPECT_TRUE(s4.empty()); + + // ToString + { + std::string s5(a.ToString().c_str(), 7); + EXPECT_EQ(c, s5); + std::string s6(e.ToString()); + EXPECT_TRUE(s6.empty()); + } + + // Consume + { + StringPiece str("foobar"); + EXPECT_TRUE(str.Consume("foo")); + EXPECT_EQ(str, "bar"); + EXPECT_FALSE(str.Consume("foo")); + EXPECT_FALSE(str.Consume("barbar")); + EXPECT_FALSE(str.Consume("ar")); + EXPECT_EQ(str, "bar"); + } + + { + StringPiece str("foobar"); + EXPECT_TRUE(str.ConsumeFromEnd("bar")); + EXPECT_EQ(str, "foo"); + EXPECT_FALSE(str.ConsumeFromEnd("bar")); + EXPECT_FALSE(str.ConsumeFromEnd("foofoo")); + EXPECT_FALSE(str.ConsumeFromEnd("fo")); + EXPECT_EQ(str, "foo"); + } +} + +TEST(StringPiece, Contains) { + StringPiece a("abcdefg"); + StringPiece b("abcd"); + StringPiece c("efg"); + StringPiece d("gh"); + EXPECT_TRUE(a.contains(b)); + EXPECT_TRUE(a.contains(c)); + EXPECT_TRUE(!a.contains(d)); +} + +TEST(StringPiece, NullInput) { + // we used to crash here, but now we don't. + StringPiece s(nullptr); + EXPECT_EQ(s.data(), (const char*)nullptr); + EXPECT_EQ(s.size(), 0); + + // .ToString() on a StringPiece with nullptr should produce the empty string. + EXPECT_EQ("", s.ToString()); + EXPECT_EQ("", s.as_string()); +} + +TEST(StringPiece, Comparisons2) { + StringPiece abc("abcdefghijklmnopqrstuvwxyz"); + + // check comparison operations on strings longer than 4 bytes. + EXPECT_EQ(abc, StringPiece("abcdefghijklmnopqrstuvwxyz")); + EXPECT_EQ(abc.compare(StringPiece("abcdefghijklmnopqrstuvwxyz")), 0); + + EXPECT_LT(abc, StringPiece("abcdefghijklmnopqrstuvwxzz")); + EXPECT_LT(abc.compare(StringPiece("abcdefghijklmnopqrstuvwxzz")), 0); + + EXPECT_GT(abc, StringPiece("abcdefghijklmnopqrstuvwxyy")); + EXPECT_GT(abc.compare(StringPiece("abcdefghijklmnopqrstuvwxyy")), 0); + + // starts_with + EXPECT_TRUE(abc.starts_with(abc)); + EXPECT_TRUE(abc.starts_with("abcdefghijklm")); + EXPECT_TRUE(!abc.starts_with("abcdefguvwxyz")); + + // ends_with + EXPECT_TRUE(abc.ends_with(abc)); + EXPECT_TRUE(!abc.ends_with("abcdefguvwxyz")); + EXPECT_TRUE(abc.ends_with("nopqrstuvwxyz")); +} + +TEST(ComparisonOpsTest, StringCompareNotAmbiguous) { + EXPECT_EQ("hello", std::string("hello")); + EXPECT_LT("hello", std::string("world")); +} + +TEST(ComparisonOpsTest, HeterogenousStringPieceEquals) { + EXPECT_EQ(StringPiece("hello"), std::string("hello")); + EXPECT_EQ("hello", StringPiece("hello")); +} + +TEST(FindOneCharTest, EdgeCases) { + StringPiece a("xxyyyxx"); + + // Set a = "xyyyx". + a.remove_prefix(1); + a.remove_suffix(1); + + EXPECT_EQ(0, a.find('x')); + EXPECT_EQ(0, a.find('x', 0)); + EXPECT_EQ(4, a.find('x', 1)); + EXPECT_EQ(4, a.find('x', 4)); + EXPECT_EQ(StringPiece::npos, a.find('x', 5)); + + EXPECT_EQ(4, a.rfind('x')); + EXPECT_EQ(4, a.rfind('x', 5)); + EXPECT_EQ(4, a.rfind('x', 4)); + EXPECT_EQ(0, a.rfind('x', 3)); + EXPECT_EQ(0, a.rfind('x', 0)); + + // Set a = "yyy". + a.remove_prefix(1); + a.remove_suffix(1); + + EXPECT_EQ(StringPiece::npos, a.find('x')); + EXPECT_EQ(StringPiece::npos, a.rfind('x')); +} + +#ifdef PROTOBUF_HAS_DEATH_TEST +#ifndef NDEBUG +TEST(NonNegativeLenTest, NonNegativeLen) { + EXPECT_DEATH(StringPiece("xyz", -1), "string length exceeds max size"); +} +#endif // ndef DEBUG +#endif // PROTOBUF_HAS_DEATH_TEST + +} // namespace +} // namespace protobuf +} // namespace google |