Source/core/editing/iterators/SearchBufferTest.cpp

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#include "config.h"
#include "core/editing/iterators/SearchBuffer.h"

#include "core/dom/Range.h"
#include "core/editing/EditingTestBase.h"
#include "core/frame/FrameView.h"

namespace blink {

class SearchBufferTest : public EditingTestBase {
protected:
    PassRefPtrWillBeRawPtr<Range> getBodyRange() const;
};

PassRefPtrWillBeRawPtr<Range> SearchBufferTest::getBodyRange() const
{
    RefPtrWillBeRawPtr<Range> range(Range::create(document()));
    range->selectNode(document().body());
    return range.release();
}

TEST_F(SearchBufferTest, FindPlainTextInvalidTarget)
{
    static const char* bodyContent = "<div>foo bar test</div>";
    setBodyContent(bodyContent);
    RefPtrWillBeRawPtr<Range> range = getBodyRange();

    RefPtrWillBeRawPtr<Range> expectedRange = range->cloneRange();
    expectedRange->collapse(false);

    // A lone lead surrogate (0xDA0A) example taken from fuzz-58.
    static const UChar invalid1[] = {
        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 invalid2[] = {
        0x1461u, 0x2130u, 0x129bu, 0xdc01u, 0xd6feu, 0xccadu, 0
    };
    // A trailing surrogate followed by a lead surrogate (U+DC03 U+D901).
    static const UChar invalid3[] = {
        0xd800u, 0xdc00u, 0x0061u, 0xdc03u, 0xd901u, 0xccadu, 0
    };

    static const UChar* invalidUStrings[] = { invalid1, invalid2, invalid3 };

    for (size_t i = 0; i < WTF_ARRAY_LENGTH(invalidUStrings); ++i) {
        String invalidTarget(invalidUStrings[i]);
        EphemeralRange foundRange = findPlainText(EphemeralRange(range.get()), invalidTarget, 0);
        RefPtrWillBeRawPtr<Range> actualRange = Range::create(document(), foundRange.startPosition(), foundRange.endPosition());
        EXPECT_TRUE(areRangesEqual(expectedRange.get(), actualRange.get()));
    }
}

} // namespace blink