third_party/blink/renderer/core/editing/iterators/search_buffer_test.cc

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#include "third_party/blink/renderer/core/editing/iterators/search_buffer.h"

#include "base/stl_util.h"
#include "third_party/blink/renderer/core/dom/range.h"
#include "third_party/blink/renderer/core/editing/ephemeral_range.h"
#include "third_party/blink/renderer/core/editing/testing/editing_test_base.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"

namespace blink {

class SearchBufferTest : public EditingTestBase {
 protected:
  Range* GetBodyRange() const;
};

Range* SearchBufferTest::GetBodyRange() const {
  Range* range(Range::Create(GetDocument()));
  range->selectNode(GetDocument().body());
  return range;
}

TEST_F(SearchBufferTest, FindPlainTextInvalidTarget) {
  static const char* body_content = "<div>foo bar test</div>";
  SetBodyContent(body_content);
  Range* range = GetBodyRange();

  Range* expected_range = range->cloneRange();
  expected_range->collapse(false);

  // A lone lead surrogate (0xDA0A) example taken from fuzz-58.
  static const UChar kInvalid1[] = {0x1461u, 0x2130u, 0x129bu, 0xd711u, 0xd6feu,
                                    0xccadu, 0x7064u, 0xd6a0u, 0x4e3bu, 0x03abu,
                                    0x17dcu, 0xb8b7u, 0xbf55u, 0xfca0u, 0x07fau,
                                    0x0427u, 0xda0au, 0};

  // A lone trailing surrogate (U+DC01).
  static const UChar kInvalid2[] = {0x1461u, 0x2130u, 0x129bu, 0xdc01u,
                                    0xd6feu, 0xccadu, 0};
  // A trailing surrogate followed by a lead surrogate (U+DC03 U+D901).
  static const UChar kInvalid3[] = {0xd800u, 0xdc00u, 0x0061u, 0xdc03u,
                                    0xd901u, 0xccadu, 0};

  static const UChar* invalid_u_strings[] = {kInvalid1, kInvalid2, kInvalid3};

  for (size_t i = 0; i < base::size(invalid_u_strings); ++i) {
    String invalid_target(invalid_u_strings[i]);
    EphemeralRange found_range =
        FindPlainText(EphemeralRange(range), invalid_target, 0);
    Range* actual_range = Range::Create(
        GetDocument(), found_range.StartPosition(), found_range.EndPosition());
    EXPECT_TRUE(AreRangesEqual(expected_range, actual_range));
  }
}

TEST_F(SearchBufferTest, DisplayInline) {
  SetBodyContent("<span>fi</span>nd");
  GetDocument().UpdateStyleAndLayout();
  auto match_range = FindPlainText(EphemeralRange(GetBodyRange()), "find", 0);
  EXPECT_FALSE(match_range.IsCollapsed());
}

TEST_F(SearchBufferTest, DisplayBlock) {
  SetBodyContent("<div>fi</div>nd");
  GetDocument().UpdateStyleAndLayout();
  auto match_range = FindPlainText(EphemeralRange(GetBodyRange()), "find", 0);
  EXPECT_TRUE(match_range.IsCollapsed());
}

TEST_F(SearchBufferTest, DisplayContents) {
  SetBodyContent("<div style='display: contents'>fi</div>nd");
  GetDocument().UpdateStyleAndLayout();
  auto match_range = FindPlainText(EphemeralRange(GetBodyRange()), "find", 0);
  EXPECT_FALSE(match_range.IsCollapsed());
}

}  // namespace blink