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// Copyright 2014 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 <stddef.h>
#include "base/macros.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/icu/source/common/unicode/ucnv.h"
#include "url/url_canon.h"
#include "url/url_canon_icu.h"
#include "url/url_canon_stdstring.h"
#include "url/url_test_utils.h"
namespace url {
using test_utils::WStringToUTF16;
namespace {
// Wrapper around a UConverter object that managers creation and destruction.
class UConvScoper {
public:
explicit UConvScoper(const char* charset_name) {
UErrorCode err = U_ZERO_ERROR;
converter_ = ucnv_open(charset_name, &err);
}
~UConvScoper() {
if (converter_)
ucnv_close(converter_);
}
// Returns the converter object, may be NULL.
UConverter* converter() const { return converter_; }
private:
UConverter* converter_;
};
TEST(URLCanonIcuTest, ICUCharsetConverter) {
struct ICUCase {
const wchar_t* input;
const char* encoding;
const char* expected;
} icu_cases[] = {
// UTF-8.
{L"Hello, world", "utf-8", "Hello, world"},
{L"\x4f60\x597d", "utf-8", "\xe4\xbd\xa0\xe5\xa5\xbd"},
// Non-BMP UTF-8.
{L"!\xd800\xdf00!", "utf-8", "!\xf0\x90\x8c\x80!"},
// Big5
{L"\x4f60\x597d", "big5", "\xa7\x41\xa6\x6e"},
// Unrepresentable character in the destination set.
{L"hello\x4f60\x06de\x597dworld", "big5",
"hello\xa7\x41%26%231758%3B\xa6\x6eworld"},
};
for (size_t i = 0; i < arraysize(icu_cases); i++) {
UConvScoper conv(icu_cases[i].encoding);
ASSERT_TRUE(conv.converter() != NULL);
ICUCharsetConverter converter(conv.converter());
std::string str;
StdStringCanonOutput output(&str);
base::string16 input_str(WStringToUTF16(icu_cases[i].input));
int input_len = static_cast<int>(input_str.length());
converter.ConvertFromUTF16(input_str.c_str(), input_len, &output);
output.Complete();
EXPECT_STREQ(icu_cases[i].expected, str.c_str());
}
// Test string sizes around the resize boundary for the output to make sure
// the converter resizes as needed.
const int static_size = 16;
UConvScoper conv("utf-8");
ASSERT_TRUE(conv.converter());
ICUCharsetConverter converter(conv.converter());
for (int i = static_size - 2; i <= static_size + 2; i++) {
// Make a string with the appropriate length.
base::string16 input;
for (int ch = 0; ch < i; ch++)
input.push_back('a');
RawCanonOutput<static_size> output;
converter.ConvertFromUTF16(input.c_str(), static_cast<int>(input.length()),
&output);
EXPECT_EQ(input.length(), static_cast<size_t>(output.length()));
}
}
TEST(URLCanonIcuTest, QueryWithConverter) {
struct QueryCase {
const char* input8;
const wchar_t* input16;
const char* encoding;
const char* expected;
} query_cases[] = {
// Regular ASCII case in some different encodings.
{"foo=bar", L"foo=bar", "utf-8", "?foo=bar"},
{"foo=bar", L"foo=bar", "shift_jis", "?foo=bar"},
{"foo=bar", L"foo=bar", "gb2312", "?foo=bar"},
// Chinese input/output
{"q=\xe4\xbd\xa0\xe5\xa5\xbd", L"q=\x4f60\x597d", "gb2312",
"?q=%C4%E3%BA%C3"},
{"q=\xe4\xbd\xa0\xe5\xa5\xbd", L"q=\x4f60\x597d", "big5", "?q=%A7A%A6n"},
// Unencodable character in the destination character set should be
// escaped. The escape sequence unescapes to be the entity name:
// "?q=你"
{"q=Chinese\xef\xbc\xa7", L"q=Chinese\xff27", "iso-8859-1",
"?q=Chinese%26%2365319%3B"},
};
for (size_t i = 0; i < arraysize(query_cases); i++) {
Component out_comp;
UConvScoper conv(query_cases[i].encoding);
ASSERT_TRUE(!query_cases[i].encoding || conv.converter());
ICUCharsetConverter converter(conv.converter());
if (query_cases[i].input8) {
int len = static_cast<int>(strlen(query_cases[i].input8));
Component in_comp(0, len);
std::string out_str;
StdStringCanonOutput output(&out_str);
CanonicalizeQuery(query_cases[i].input8, in_comp, &converter, &output,
&out_comp);
output.Complete();
EXPECT_EQ(query_cases[i].expected, out_str);
}
if (query_cases[i].input16) {
base::string16 input16(WStringToUTF16(query_cases[i].input16));
int len = static_cast<int>(input16.length());
Component in_comp(0, len);
std::string out_str;
StdStringCanonOutput output(&out_str);
CanonicalizeQuery(input16.c_str(), in_comp, &converter, &output,
&out_comp);
output.Complete();
EXPECT_EQ(query_cases[i].expected, out_str);
}
}
// Extra test for input with embedded NULL;
std::string out_str;
StdStringCanonOutput output(&out_str);
Component out_comp;
CanonicalizeQuery("a \x00z\x01", Component(0, 5), NULL, &output, &out_comp);
output.Complete();
EXPECT_EQ("?a%20%00z%01", out_str);
}
} // namespace
} // namespace url
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