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// Copyright 2016 PDFium 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 <limits>
#include "core/fxcrt/fx_string.h"
#include "testing/gtest/include/gtest/gtest.h"
TEST(fxstring, FX_atonum) {
int i;
EXPECT_TRUE(FX_atonum("10", &i));
EXPECT_EQ(10, i);
EXPECT_TRUE(FX_atonum("-10", &i));
EXPECT_EQ(-10, i);
EXPECT_TRUE(FX_atonum("+10", &i));
EXPECT_EQ(10, i);
EXPECT_TRUE(FX_atonum("-2147483648", &i));
EXPECT_EQ(std::numeric_limits<int>::min(), i);
EXPECT_TRUE(FX_atonum("2147483647", &i));
EXPECT_EQ(2147483647, i);
// Value overflows.
EXPECT_TRUE(FX_atonum("-2147483649", &i));
EXPECT_EQ(0, i);
// Value overflows.
EXPECT_TRUE(FX_atonum("+2147483648", &i));
EXPECT_EQ(0, i);
// Value overflows.
EXPECT_TRUE(FX_atonum("4223423494965252", &i));
EXPECT_EQ(0, i);
// No explicit sign will allow the number to go negative. This is for things
// like the encryption Permissions flag (Table 3.20 PDF 1.7 spec)
EXPECT_TRUE(FX_atonum("4294965252", &i));
EXPECT_EQ(-2044, i);
EXPECT_TRUE(FX_atonum("-4294965252", &i));
EXPECT_EQ(0, i);
EXPECT_TRUE(FX_atonum("+4294965252", &i));
EXPECT_EQ(0, i);
float f;
EXPECT_FALSE(FX_atonum("3.24", &f));
EXPECT_FLOAT_EQ(3.24f, f);
}
TEST(fxstring, FX_UTF8Encode) {
EXPECT_EQ("", FX_UTF8Encode(WideStringView()));
EXPECT_EQ(
"x"
"\xc2\x80"
"\xc3\xbf"
"\xef\xbc\xac"
"y",
FX_UTF8Encode(L"x"
L"\u0080"
L"\u00ff"
L"\uff2c"
L"y"));
}
TEST(fxstring, FX_UTF8Decode) {
EXPECT_EQ(L"", FX_UTF8Decode(ByteStringView()));
EXPECT_EQ(
L"x"
L"\u0080"
L"\u00ff"
L"\uff2c"
L"y",
FX_UTF8Decode("x"
"\xc2\x80"
"\xc3\xbf"
"\xef\xbc\xac"
"y"));
EXPECT_EQ(L"a(A) b() c() d() e().",
FX_UTF8Decode("a(\xc2\x41) " // Invalid continuation.
"b(\xc2\xc2) " // Invalid continuation.
"c(\xc2\xff\x80) " // Invalid continuation.
"d(\x80\x80) " // Invalid leading.
"e(\xff\x80\x80)" // Invalid leading.
"."));
}
TEST(fxstring, FX_UTF8EncodeDecodeConsistency) {
WideString wstr;
wstr.Reserve(0x10000);
for (int w = 0; w < 0x10000; ++w)
wstr += static_cast<wchar_t>(w);
ByteString bstr = FX_UTF8Encode(wstr.AsStringView());
WideString wstr2 = FX_UTF8Decode(bstr.AsStringView());
EXPECT_EQ(0x10000u, wstr2.GetLength());
EXPECT_EQ(wstr, wstr2);
}
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