TEST_F(WebMeaningfulLayoutsTest, FinishedParsingThenLoading)
{
SimRequest mainResource("https://example.com/index.html", "text/html");
SimRequest imageResource("https://example.com/cat.png", "image/png");
loadURL("https://example.com/index.html");
mainResource.start();
mainResource.write("<img src=cat.png>");
mainResource.finish();
compositor().beginFrame();
EXPECT_TRUE(webViewClient().hadFinishedParsingLayout());
EXPECT_FALSE(webViewClient().hadFinishedLoadingLayout());
imageResource.complete("image data");
// Pump the message loop to process the image loading task.
testing::runPendingTasks();
compositor().beginFrame();
EXPECT_TRUE(webViewClient().hadFinishedLoadingLayout());
}
TEST_F(WebMeaningfulLayoutsTest, VisuallyNonEmptyTextCharactersEventually)
{
SimRequest mainResource("https://example.com/index.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.start();
// Write 200 characters.
const char* tenCharacters = "0123456789";
for (int i = 0; i < 20; ++i)
mainResource.write(tenCharacters);
// Pump a frame mid-load.
compositor().beginFrame();
EXPECT_FALSE(webViewClient().hadVisuallyNonEmptyLayout());
// Write more than 200 characters.
mainResource.write("!");
mainResource.finish();
// setting visually non-empty happens when the parsing finishes,
// not as the character count goes over 200.
compositor().beginFrame();
EXPECT_TRUE(webViewClient().hadVisuallyNonEmptyLayout());
}
// NoOverflowInIncrementVisuallyNonEmptyPixelCount tests fail if the number of
// pixels is calculated in 32-bit integer, because 65536 * 65536 would become 0
// if it was calculated in 32-bit and thus it would be considered as empty.
TEST_F(WebMeaningfulLayoutsTest,
NoOverflowInIncrementVisuallyNonEmptyPixelCount) {
SimRequest mainResource("https://example.com/test.html", "text/html");
SimRequest svgResource("https://example.com/test.svg", "image/svg+xml");
loadURL("https://example.com/test.html");
mainResource.start();
mainResource.write("<DOCTYPE html><body><img src=\"test.svg\">");
// Run pending tasks to initiate the request to test.svg.
testing::runPendingTasks();
EXPECT_EQ(0, webViewClient().visuallyNonEmptyLayoutCount());
// We serve the SVG file and check visuallyNonEmptyLayoutCount() before
// mainResource.finish() because finishing the main resource causes
// |FrameView::m_isVisuallyNonEmpty| to be true and
// visuallyNonEmptyLayoutCount() to be 1 irrespective of the SVG sizes.
svgResource.start();
svgResource.write(
"<svg xmlns=\"http://www.w3.org/2000/svg\" height=\"65536\" "
"width=\"65536\"></svg>");
svgResource.finish();
compositor().beginFrame();
EXPECT_EQ(1, webViewClient().visuallyNonEmptyLayoutCount());
mainResource.finish();
}
TEST_F(WebMeaningfulLayoutsTest, VisuallyNonEmptyMissingPump)
{
SimRequest mainResource("https://example.com/index.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.start();
// Write <200 characters.
mainResource.write("less than 200 characters.");
compositor().beginFrame();
mainResource.finish();
// Even though the layout state is clean ...
EXPECT_TRUE(document().lifecycle().state() >= DocumentLifecycle::LayoutClean);
// We should still generate a request for another (possibly last) frame.
EXPECT_TRUE(compositor().needsAnimate());
// ... which we (the scheduler) happily provide.
compositor().beginFrame();
// ... which correctly signals the VisuallyNonEmpty.
EXPECT_TRUE(webViewClient().hadVisuallyNonEmptyLayout());
}
TEST_F(WebMeaningfulLayoutsTest, FinishedParsing) {
SimRequest mainResource("https://example.com/index.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.complete("content");
compositor().beginFrame();
EXPECT_EQ(1, webViewClient().finishedParsingLayoutCount());
}
TEST_F(WebMeaningfulLayoutsTest, WithIFrames) {
SimRequest mainResource("https://example.com/index.html", "text/html");
SimRequest iframeResource("https://example.com/iframe.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.complete("<iframe src=iframe.html></iframe>");
compositor().beginFrame();
EXPECT_EQ(1, webViewClient().visuallyNonEmptyLayoutCount());
EXPECT_EQ(1, webViewClient().finishedParsingLayoutCount());
EXPECT_EQ(0, webViewClient().finishedLoadingLayoutCount());
iframeResource.complete("iframe data");
// Pump the message loop to process the iframe loading task.
testing::runPendingTasks();
compositor().beginFrame();
EXPECT_EQ(1, webViewClient().visuallyNonEmptyLayoutCount());
EXPECT_EQ(1, webViewClient().finishedParsingLayoutCount());
EXPECT_EQ(1, webViewClient().finishedLoadingLayoutCount());
}
TEST_F(WebMeaningfulLayoutsTest, FinishedLoading)
{
SimRequest mainResource("https://example.com/index.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.start();
mainResource.write("content");
mainResource.finish();
compositor().beginFrame();
EXPECT_TRUE(webViewClient().hadFinishedLoadingLayout());
}
TEST_F(WebMeaningfulLayoutsTest, VisuallyNonEmptyTextCharacters) {
SimRequest mainResource("https://example.com/index.html", "text/html");
loadURL("https://example.com/index.html");
mainResource.start();
// Write 201 characters.
const char* tenCharacters = "0123456789";
for (int i = 0; i < 20; ++i)
mainResource.write(tenCharacters);
mainResource.write("!");
mainResource.finish();
compositor().beginFrame();
EXPECT_EQ(1, webViewClient().visuallyNonEmptyLayoutCount());
}
