blob: 710adda9565c8676938e0a12b7c1870dceff370b [file] [log] [blame]
// 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 "ios/web/public/string_util.h"
#include <stddef.h>
#include "base/strings/utf_string_conversions.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace web {
// Tests that a regular sentence is clipped correctly.
TEST(StringByClippingLastWordTest, ClipRegularSentence) {
const base::string16 kInput =
base::UTF8ToUTF16("\nSome text here and there.");
EXPECT_EQ(kInput, GetStringByClippingLastWord(kInput, 100));
// Tests that a long sentence exceeding some length is clipped correctly.
TEST(StringByClippingLastWordTest, ClipLongSentence) {
// An arbitrary length.
const size_t kStringLength = 10;
base::string16 string(kStringLength, 'a');
string.append(base::UTF8ToUTF16(" b cdefghijklmnopqrstuvwxyz"));
// The string should be cut at the last whitespace, after the 'b' character.
base::string16 result =
GetStringByClippingLastWord(string, kStringLength + 3);
EXPECT_EQ(kStringLength + 2, result.size());
EXPECT_EQ(0u, string.find_first_of(result));
// Tests that a block of text with no space is truncated to kLongStringLength.
TEST(StringByClippingLastWordTest, ClipLongTextContentNoSpace) {
// Very long string.
const size_t kLongStringLength = 65536;
// A string slightly longer than |kLongStringLength|.
base::string16 long_string(kLongStringLength + 10, 'a');
// Block of text with no space should be truncated to kLongStringLength.
base::string16 result =
GetStringByClippingLastWord(long_string, kLongStringLength);
EXPECT_EQ(kLongStringLength, result.size());
EXPECT_EQ(0u, long_string.find_first_of(result));
} // namespace web