third_party/blink/renderer/core/editing/selection_modifier_test.cc

// Copyright 2017 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 "third_party/blink/renderer/core/editing/selection_modifier.h"

#include "third_party/blink/renderer/core/editing/testing/editing_test_base.h"
#include "third_party/blink/renderer/core/editing/visible_position.h"
#include "third_party/blink/renderer/platform/testing/runtime_enabled_features_test_helpers.h"

namespace blink {

class SelectionModifierTest : public EditingTestBase {};

TEST_F(SelectionModifierTest, ExtendForwardByWordNone) {
  SetBodyContent("abc");
  SelectionModifier modifier(GetFrame(), SelectionInDOMTree());
  modifier.Modify(SelectionModifyAlteration::kExtend,
                  SelectionModifyDirection::kForward, TextGranularity::kWord);
  // We should not crash here. See http://crbug.com/832061
  EXPECT_EQ(SelectionInDOMTree(), modifier.Selection().AsSelection());
}

TEST_F(SelectionModifierTest, MoveForwardByWordNone) {
  SetBodyContent("abc");
  SelectionModifier modifier(GetFrame(), SelectionInDOMTree());
  modifier.Modify(SelectionModifyAlteration::kMove,
                  SelectionModifyDirection::kForward, TextGranularity::kWord);
  // We should not crash here. See http://crbug.com/832061
  EXPECT_EQ(SelectionInDOMTree(), modifier.Selection().AsSelection());
}

TEST_F(SelectionModifierTest, PreviousLineWithDisplayNone) {
  InsertStyleElement("body{font-family: monospace}");
  const SelectionInDOMTree selection = SetSelectionTextToBody(
      "<div contenteditable>"
      "<div>foo bar</div>"
      "<div>foo <b style=\"display:none\">qux</b> bar baz|</div>"
      "</div>");
  SelectionModifier modifier(GetFrame(), selection);
  modifier.Modify(SelectionModifyAlteration::kMove,
                  SelectionModifyDirection::kBackward, TextGranularity::kLine);
  EXPECT_EQ(
      "<div contenteditable>"
      "<div>foo bar|</div>"
      "<div>foo <b style=\"display:none\">qux</b> bar baz</div>"
      "</div>",
      GetSelectionTextFromBody(modifier.Selection().AsSelection()));
}

}  // namespace blink