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// file : tests/cxx/string/driver.cxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2006-2009 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
// Test xsde::cxx::string string type.
//
#include <assert.h>
#include <xsde/cxx/string.hxx>
using xsde::cxx::string;
int
main ()
{
// Start with un-initialized string.
//
{
string s;
assert (s.data () == 0 && s.size () == 0 && s.capacity () == 0);
}
// Test initialization with an empty string.
//
{
string s;
s.assign ("", 0);
assert (s.size () == 0 && s.capacity () == 64 && s == "");
}
// String starts with at least 64 bytes.
//
{
string s;
s.assign ("aaa");
assert (s.size () == 3 && s == "aaa" && s.capacity () == 64);
}
// If we grow beyond 32 it should be greater of new size and 2*64.
//
{
const char v[] =
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // 32
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
"cccccccccccccccccccccccccccccccc";
string s;
s.assign ("aaa");
s.assign (v);
assert (s.size () == 96 && s == v && s.capacity () == 128);
}
// If we grow beyond 32 it should be greater of new size and 2*32.
//
{
const char v[] =
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // 32
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
"cccccccccccccccccccccccccccccccc"
"dddddddddddddddddddddddddddddddd"
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
string s;
s.assign ("aaa");
s.assign (v);
assert (s.size () == 159 && s == v && s.capacity () == 160);
}
// Make sure the new capacity is even.
//
{
const char v[] =
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // 32
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
"cccccccccccccccccccccccccccccccc"
"dddddddddddddddddddddddddddddddd"
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
string s;
s.assign ("aaa");
s.assign (v);
assert (s.size () == 160 && s == v && s.capacity () == 162);
}
// Test append
//
{
const char v[] =
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" // 32
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
"cccccccccccccccccccccccccccccccc"
"dddddddddddddddddddddddddddddddd"
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee";
string s;
s.assign ("aaa");
s.append (&v[3]);
assert (s.size () == 160 && s == v && s.capacity () == 162);
}
}
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