/*
- * Copyright 2013 Facebook, Inc.
+ * Copyright 2014 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
//
// Author: andrei.alexandrescu@fb.com
-#include "folly/FBString.h"
+#include <folly/FBString.h>
#include <cstdlib>
#include <list>
#include <fstream>
+#include <iomanip>
#include <boost/algorithm/string.hpp>
#include <boost/random.hpp>
#include <gtest/gtest.h>
#include <gflags/gflags.h>
-#include "folly/Foreach.h"
-#include "folly/Random.h"
-#include "folly/Conv.h"
+#include <folly/Foreach.h>
+#include <folly/Portability.h>
+#include <folly/Random.h>
+#include <folly/Conv.h>
using namespace std;
using namespace folly;
random(0, maxString), random('a', 'z'));
pos = random(0, test.size());
if (avoidAliasing) {
+ auto newString = String(test);
test.replace(
test.begin() + pos,
test.begin() + pos + random(0, test.size() - pos),
- String(test));
+ newString);
} else {
test.replace(
test.begin() + pos,
}
pos = random(0, test.size());
if (avoidAliasing) {
+ auto newString = String(test);
test.replace(
test.begin() + pos,
test.begin() + pos + random(0, test.size() - pos),
- String(test).c_str(),
+ newString.c_str(),
test.size() - random(0, test.size()));
} else {
test.replace(
std::wstring wr;
folly::fbstring c;
folly::basic_fbstring<wchar_t> wc;
-#define TEST_CLAUSE(x) \
- do { \
- if (1) {} else EXPECT_TRUE(1) << "Testing clause " << #x; \
- randomString(&r); \
- c = r; \
- EXPECT_EQ(c, r); \
- wr = std::wstring(r.begin(), r.end()); \
- wc = folly::basic_fbstring<wchar_t>(wr.c_str()); \
- auto localSeed = seed + count; \
- rng = RandomT(localSeed); \
- clause11_##x(r); \
- rng = RandomT(localSeed); \
- clause11_##x(c); \
- EXPECT_EQ(r, c) \
- << "Lengths: " << r.size() << " vs. " << c.size() \
- << "\nReference: '" << r << "'" \
- << "\nActual: '" << c.data()[0] << "'"; \
- rng = RandomT(localSeed); \
- clause11_##x(wc); \
- int wret = wcslen(wc.c_str()); \
- char mb[wret+1]; \
- int ret = wcstombs(mb, wc.c_str(), sizeof(mb)); \
- if (ret == wret) mb[wret] = '\0'; \
- const char *mc = c.c_str(); \
- std::string one(mb); \
- std::string two(mc); \
- EXPECT_EQ(one, two); \
- } while (++count % 100 != 0)
-
int count = 0;
+
+ auto l = [&](const char * const clause,
+ void(*f_string)(std::string&),
+ void(*f_fbstring)(folly::fbstring&),
+ void(*f_wfbstring)(folly::basic_fbstring<wchar_t>&)) {
+ do {
+ if (1) {} else EXPECT_TRUE(1) << "Testing clause " << clause;
+ randomString(&r);
+ c = r;
+ EXPECT_EQ(c, r);
+ wr = std::wstring(r.begin(), r.end());
+ wc = folly::basic_fbstring<wchar_t>(wr.c_str());
+ auto localSeed = seed + count;
+ rng = RandomT(localSeed);
+ f_string(r);
+ rng = RandomT(localSeed);
+ f_fbstring(c);
+ EXPECT_EQ(r, c)
+ << "Lengths: " << r.size() << " vs. " << c.size()
+ << "\nReference: '" << r << "'"
+ << "\nActual: '" << c.data()[0] << "'";
+ rng = RandomT(localSeed);
+ f_wfbstring(wc);
+ int wret = wcslen(wc.c_str());
+ char mb[wret+1];
+ int ret = wcstombs(mb, wc.c_str(), sizeof(mb));
+ if (ret == wret) mb[wret] = '\0';
+ const char *mc = c.c_str();
+ std::string one(mb);
+ std::string two(mc);
+ EXPECT_EQ(one, two);
+ } while (++count % 100 != 0);
+ };
+
+#define TEST_CLAUSE(x) \
+ l(#x, \
+ clause11_##x<std::string>, \
+ clause11_##x<folly::fbstring>, \
+ clause11_##x<folly::basic_fbstring<wchar_t>>);
+
TEST_CLAUSE(21_4_2_a);
TEST_CLAUSE(21_4_2_b);
TEST_CLAUSE(21_4_2_c);
ifstream input(f);
fbstring line;
FOR_EACH (i, v) {
- EXPECT_TRUE(getline(input, line));
+ EXPECT_TRUE(!getline(input, line).fail());
EXPECT_EQ(line, *i);
}
}
EXPECT_EQ(size1 + size2, test.size());
}
+// The GNU C++ standard library throws an std::logic_error when an std::string
+// is constructed with a null pointer. Verify that we mirror this behavior.
+//
+// N.B. We behave this way even if the C++ library being used is something
+// other than libstdc++. Someday if we deem it important to present
+// identical undefined behavior for other platforms, we can re-visit this.
TEST(FBString, testConstructionFromLiteralZero) {
- try {
- std::string s(0);
- EXPECT_TRUE(false);
- } catch (const std::logic_error&) {
- } catch (...) {
- EXPECT_TRUE(false);
- }
-
- try {
- fbstring s(0);
- EXPECT_TRUE(false);
- } catch (const std::logic_error& e) {
- } catch (...) {
- EXPECT_TRUE(false);
- }
+ EXPECT_THROW(fbstring s(0), std::logic_error);
}
TEST(FBString, testFixedBugs) {
cp.c_str();
EXPECT_EQ(str.front(), 'f');
}
- { // D481173, --extra-cxxflags=-DFBSTRING_CONSERVATIVE
+ { // D481173
fbstring str(1337, 'f');
for (int i = 0; i < 2; ++i) {
fbstring cp = str;
std::swap(str, str);
EXPECT_EQ(1337, str.size());
}
+ { // D1012196, --allocator=malloc
+ fbstring str(128, 'f');
+ str.clear(); // Empty medium string.
+ fbstring copy(str); // Medium string of 0 capacity.
+ copy.push_back('b');
+ EXPECT_GE(copy.capacity(), 1);
+ }
}
+TEST(FBString, findWithNpos) {
+ fbstring fbstr("localhost:80");
+ EXPECT_EQ(fbstring::npos, fbstr.find(":", fbstring::npos));
+}
TEST(FBString, testHash) {
fbstring a;
EXPECT_EQ(str, "HellO");
}
+TEST(FBString, noexcept) {
+ EXPECT_TRUE(noexcept(fbstring()));
+ // std::move is not marked noexcept in gcc 4.6, sigh
+#if __GNUC_PREREQ(4, 7)
+ fbstring x;
+ EXPECT_FALSE(noexcept(fbstring(x)));
+ EXPECT_TRUE(noexcept(fbstring(std::move(x))));
+ fbstring y;
+ EXPECT_FALSE(noexcept(y = x));
+ EXPECT_TRUE(noexcept(y = std::move(x)));
+#endif
+}
+
+TEST(FBString, iomanip) {
+ stringstream ss;
+ fbstring fbstr("Hello");
+
+ ss << setw(6) << fbstr;
+ EXPECT_EQ(ss.str(), " Hello");
+ ss.str("");
+
+ ss << left << setw(6) << fbstr;
+ EXPECT_EQ(ss.str(), "Hello ");
+ ss.str("");
+
+ ss << right << setw(6) << fbstr;
+ EXPECT_EQ(ss.str(), " Hello");
+ ss.str("");
+
+ ss << setw(4) << fbstr;
+ EXPECT_EQ(ss.str(), "Hello");
+ ss.str("");
+
+ ss << setfill('^') << setw(6) << fbstr;
+ EXPECT_EQ(ss.str(), "^Hello");
+ ss.str("");
+}
+
+TEST(FBString, rvalueIterators) {
+ // you cannot take &* of a move-iterator, so use that for testing
+ fbstring s = "base";
+ fbstring r = "hello";
+ r.replace(r.begin(), r.end(),
+ make_move_iterator(s.begin()), make_move_iterator(s.end()));
+ EXPECT_EQ("base", r);
+
+ // The following test is probably not required by the standard.
+ // i.e. this could be in the realm of undefined behavior.
+ fbstring b = "123abcXYZ";
+ auto ait = b.begin() + 3;
+ auto Xit = b.begin() + 6;
+ b.replace(ait, b.end(), b.begin(), Xit);
+ EXPECT_EQ("123123abc", b); // if things go wrong, you'd get "123123123"
+}
+
+TEST(FBString, moveTerminator) {
+ // The source of a move must remain in a valid state
+ fbstring s(100, 'x'); // too big to be in-situ
+ fbstring k;
+ k = std::move(s);
+
+ EXPECT_EQ(0, s.size());
+ EXPECT_EQ('\0', *s.c_str());
+}
+
int main(int argc, char** argv) {
testing::InitGoogleTest(&argc, argv);
google::ParseCommandLineFlags(&argc, &argv, true);
projects / folly.git / blobdiff