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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/continuous_search/common/title_validator.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace continuous_search {
TEST(TitleValidator, Trim) {
EXPECT_EQ("NULL", ValidateTitleAscii("NULL"));
EXPECT_EQ("a", ValidateTitleAscii(" a "));
EXPECT_EQ("b", ValidateTitleAscii(" b"));
EXPECT_EQ("c", ValidateTitleAscii("c "));
EXPECT_EQ("", ValidateTitleAscii(" "));
EXPECT_EQ("", ValidateTitleAscii(""));
EXPECT_EQ("", ValidateTitleAscii("\0"));
EXPECT_EQ("\v", ValidateTitleAscii(" \v "));
// Tests all control characters.
EXPECT_EQ(
"FOO",
ValidateTitleAscii(
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
" FOO "
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F"));
// Tests all whitespace characters.
EXPECT_EQ(u"Bar", ValidateTitle(u"\xA0\x3000\t\r\f\nBar"));
}
TEST(TitleValidator, Collapse) {
// Collapse control.
EXPECT_EQ(
"a b",
ValidateTitleAscii(
"a\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
" "
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F b"));
// Collapse whitespace.
EXPECT_EQ(u"Foo Bar", ValidateTitle(u"Foo\xA0\x3000\t\r\f\nBar"));
}
TEST(TitleValidator, CollapseAndTrim) {
EXPECT_EQ(
"a b",
ValidateTitleAscii(
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F"
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
" a "
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1A\x1B\x1C\x1D\x1E\x1F"
"\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x7F\x0C\x0D\x0E\x0F b"));
EXPECT_EQ(u"Foo Bar", ValidateTitle(u"\nFoo\xA0\x3000\t\r\f\nBar\n"));
}
TEST(TitleValidator, MaxLengthExceeded) {
EXPECT_EQ(std::string(4096, 'a'), ValidateTitleAscii(std::string(4098, 'a')));
EXPECT_EQ(std::u16string(4096, 'b'),
ValidateTitle(std::u16string(5012, 'b')));
// With collapse.
EXPECT_EQ(std::string(1000, 'a') + " " + std::string(3095, 'b'),
ValidateTitleAscii(std::string(1000, 'a') + std::string(500, ' ') +
std::string(4000, 'b')));
// With trim.
EXPECT_EQ(std::string(2049, 'a') + std::string(2047, 'b'),
ValidateTitleAscii(std::string(10, ' ') + std::string(2049, 'a') +
std::string(3000, 'b') + std::string(30, ' ')));
// With collapse and trim.
EXPECT_EQ(std::string(2049, 'a') + " " + std::string(2046, 'b'),
ValidateTitleAscii(std::string(10, ' ') + std::string(2049, 'a') +
std::string(1000, ' ') + std::string(3000, 'b') +
std::string(30, ' ')));
}
TEST(TitleValidator, MaxLengthAvoided) {
// With collapse.
EXPECT_EQ(std::string(1000, 'a') + " " + std::string(1000, 'b'),
ValidateTitleAscii(std::string(1000, 'a') + std::string(5000, ' ') +
std::string(1000, 'b')));
// With trim.
EXPECT_EQ(
std::string(1024, 'a') + std::string(1024, 'b'),
ValidateTitleAscii(std::string(5000, ' ') + std::string(1024, 'a') +
std::string(1024, 'b') + std::string(5000, ' ')));
// With collapse and trim.
EXPECT_EQ(
std::u16string(2000, 'a') + u" " + std::u16string(2000, 'b'),
ValidateTitle(std::u16string(5000, ' ') + std::u16string(2000, 'a') +
std::u16string(1000, ' ') + std::u16string(2000, 'b') +
std::u16string(5000, ' ')));
}
} // namespace continuous_search
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