| // 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/page/scrolling/text_fragment_finder.h" |
| |
| #include "third_party/blink/renderer/core/testing/sim/sim_request.h" |
| #include "third_party/blink/renderer/core/testing/sim/sim_test.h" |
| |
| namespace blink { |
| |
| class MockTextFragmentFinder : public TextFragmentFinder { |
| public: |
| MockTextFragmentFinder(Client& client, |
| const TextFragmentSelector& selector, |
| Document* document, |
| FindBufferRunnerType runner_type) |
| : TextFragmentFinder(client, selector, document, runner_type) {} |
| |
| private: |
| void GoToStep(SelectorMatchStep step) override { step_ = step; } |
| }; |
| |
| class TextFragmentFinderTest : public SimTest, |
| public TextFragmentFinder::Client { |
| public: |
| void SetUp() override { |
| SimTest::SetUp(); |
| WebView().MainFrameViewWidget()->Resize(gfx::Size(800, 600)); |
| } |
| |
| void NoMatchFound() override { no_match_called_ = true; } |
| |
| void DidFindMatch(const EphemeralRangeInFlatTree& match, |
| const TextFragmentAnchorMetrics::Match match_metrics, |
| bool is_unique) override {} |
| bool IsNoMatchFoundCalled() { return no_match_called_; } |
| |
| private: |
| bool no_match_called_ = false; |
| }; |
| |
| // Tests that Find tasks will fail gracefully when DOM mutations invalidate the |
| // Find task properties. |
| TEST_F(TextFragmentFinderTest, DOMMutation) { |
| SimRequest request("https://example.com/test.html", "text/html"); |
| LoadURL("https://example.com/test.html"); |
| request.Complete(R"HTML( |
| <!DOCTYPE html> |
| <input id="input" type='submit' value="button text"> |
| <p id='first'>First paragraph prefix to unique snippet of text.</p> |
| )HTML"); |
| |
| TextFragmentSelector selector(TextFragmentSelector::SelectorType::kExact, |
| "First paragraph", "", "button text", |
| "prefix to unique"); |
| |
| MockTextFragmentFinder* finder = MakeGarbageCollected<MockTextFragmentFinder>( |
| *this, selector, &GetDocument(), |
| TextFragmentFinder::FindBufferRunnerType::kSynchronous); |
| finder->FindMatch(); |
| |
| finder->FindPrefix(); |
| EXPECT_EQ(false, IsNoMatchFoundCalled()); |
| |
| finder->FindTextStart(); |
| EXPECT_EQ(false, IsNoMatchFoundCalled()); |
| |
| Node* input = GetDocument().getElementById("input"); |
| input->remove(); |
| GetDocument().UpdateStyleAndLayout(DocumentUpdateReason::kTest); |
| |
| finder->FindSuffix(); |
| EXPECT_EQ(true, IsNoMatchFoundCalled()); |
| } |
| |
| } // namespace blink |
