TestTextDirective.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "TextDirectiveUtil.h"

#include "gtest/gtest.h"

using namespace mozilla::dom;

TEST(TestTextDirective, ComputeWordBoundaryDistancesLTR)

  nsString text(u"Hello, world! This is a test.");

  nsTArray<uint32_t> wordEndDistances =

      TextDirectiveUtil::ComputeWordBoundaryDistances<TextScanDirection::Right>(

          text);

  EXPECT_EQ(wordEndDistances.Length(), 7u);

  EXPECT_EQ(wordEndDistances[0], 5u);   // "Hello"

  EXPECT_EQ(wordEndDistances[1], 12u);  // "Hello, world"

  EXPECT_EQ(wordEndDistances[2], 18u);  // "Hello, world! This"

  EXPECT_EQ(wordEndDistances[3], 21u);  // "Hello, world! This is"

  EXPECT_EQ(wordEndDistances[4], 23u);  // "Hello, world! This is a"

  EXPECT_EQ(wordEndDistances[5], 28u);  // "Hello, world! This is a test"

  EXPECT_EQ(wordEndDistances[6], 29u);  // "Hello, world! This is a test."

TEST(TestTextDirective, ComputeWordBoundaryDistancesRTL)

  nsString text(u"Hello, world! This is a test.");

  nsTArray<uint32_t> wordBeginDistances =

      TextDirectiveUtil::ComputeWordBoundaryDistances<TextScanDirection::Left>(

          text);

  EXPECT_EQ(wordBeginDistances.Length(), 6u);

  EXPECT_EQ(wordBeginDistances[0], 5u);   // "test."

  EXPECT_EQ(wordBeginDistances[1], 7u);   // "a test."

  EXPECT_EQ(wordBeginDistances[2], 10u);  // "is a test."

  EXPECT_EQ(wordBeginDistances[3], 15u);  // "This is a test."

  EXPECT_EQ(wordBeginDistances[4], 22u);  // "world! This is a test."

  EXPECT_EQ(wordBeginDistances[5], 29u);  // "Hello, world! This is a test."

TEST(TestTextDirective, ComputeWordBoundaryDistancesPunctuationOnly)

  nsString text(u": , .");

  nsTArray<uint32_t> wordEndDistances =

      TextDirectiveUtil::ComputeWordBoundaryDistances<TextScanDirection::Right>(

          text);

  EXPECT_EQ(wordEndDistances.Length(), 1u);

  EXPECT_EQ(wordEndDistances[0], 5u);

TEST(TestTextDirective, ComputeWordBoundaryDistancesWithEmptyString)

  nsString text(u"");

  nsTArray<uint32_t> wordEndDistances =

      TextDirectiveUtil::ComputeWordBoundaryDistances<TextScanDirection::Right>(

          text);

  EXPECT_EQ(wordEndDistances.Length(), 1u);

  EXPECT_EQ(wordEndDistances[0], 0u);