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Diffstat (limited to 'parser/htmlparser/tests/mochitest/file_img_picture_preload.html')
| -rw-r--r-- | parser/htmlparser/tests/mochitest/file_img_picture_preload.html | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/parser/htmlparser/tests/mochitest/file_img_picture_preload.html b/parser/htmlparser/tests/mochitest/file_img_picture_preload.html new file mode 100644 index 0000000000..e9b2c4c3bf --- /dev/null +++ b/parser/htmlparser/tests/mochitest/file_img_picture_preload.html @@ -0,0 +1,167 @@ +<!DOCTYPE html> +<html> +<!-- + Helper for test_img_picture_preload.htm. Can be merged in to the test file + when dom.image.{picture,srcset} are removed and we don't need to do pref + flipping before the load. + + https://bugzilla.mozilla.org/show_bug.cgi?id=1067345 +--> +<head> + <title>Test for Bug 1067345</title> +</head> +<body onload="afterLoad();"> + <script type="text/javascript"> + var is = window.parent.is; + var ok = window.parent.ok; + var SimpleTest = window.parent.SimpleTest; + // Called with number of requests made + var notifyTestFinished = window.parent.childTestFinished; + var currentDPI = window.parent.currentDPI; + + // This script is intentionally blocking the images below from + // loading. It issues sync XHRs to the sjs to wait for the files + // to be requested before unblocking DOM creation, then asserts + // that the same sources were selected by the preloader and the + // real DOM. + + // Number of images to wait for before unblocking load + const EXPECTED_PRELOADS = 11; + + function busyWait(waitms) { + var start = Date.now(); + while (Date.now() < start + waitms); + } + + // Send sync XHRs asking the sjs what images it's seen until we + // see EXPECTED_PRELOADS images. (If this test is timing out, you broke + // the preloader) + var preloadedImages = []; + while (preloadedImages.length < EXPECTED_PRELOADS) { + var request = new XMLHttpRequest(); + request.open('GET', "./file_img_picture_preload.sjs?status", false); + request.send(null); + is(request.status, 200, "Getting status from sjs helper should succeed"); + if (request.status === 200) { + var preloadedImages = JSON.parse(request.responseText); + } + } + + // Ensure the DOM is still blocked on us before proceeding + is(document.querySelector("img"), null, "No <img> elements should exist yet"); + </script> + + <!-- All images below will be checked, use sources of the format + ./file_img_picture_preload.sjs?imgName:sourceName + Update numImages when adding or removing images below --> + + <!-- Basic src --> + <img id="img1" + src="./file_img_picture_preload.sjs?img1:source1"> + <!-- Basic srcset, no src --> + <img id="img2" + srcset="./file_img_picture_preload.sjs?img2:source1, ./file_img_picture_preload.sjs?img2:source2 2x, ./file_img_picture_preload.sjs?img2:source3 0.5x"> + <!-- srcset + src, srcset should shadow entirley --> + <img id="img3" + srcset="./file_img_picture_preload.sjs?img3:source1, ./file_img_picture_preload.sjs?img3:source2 2x, ./file_img_picture_preload.sjs?img3:source3 0.5x"> + <!-- Ditto with sizes selector --> + <img id="img4" + sizes="50vw" + srcset="./file_img_picture_preload.sjs?img4:source1 500w, ./file_img_picture_preload.sjs?img4:source2 200w, ./file_img_picture_preload.sjs?img4:source3 5w"> + <!-- Default source shouldn't be selected --> + <img id="img5" + srcset="./file_img_picture_preload.sjs?img5:source1, ./file_img_picture_preload.sjs?img5:source2 2x" + src="./file_img_picture_preload.sjs?img5:source3"> + <!-- Default source should be the 1x source, but srcset for others --> + <img id="img6" + srcset="./file_img_picture_preload.sjs?img6:source1 0.5x, ./file_img_picture_preload.sjs?img6:source2 2x" + src="./file_img_picture_preload.sjs?img6:source3"> + + <!-- Ensure we skip various invalid sources --> + <picture> + <source type="image/png"> + <source type="image/png" srcset=""> + <source media="(min-width: 1px)"> + <source media="(min-width: 1px)" srcset=" "> + <source type="invalid/x-bogus-type" srcset="./file_img_picture_preload.sjs?img7:source1"> + <source media="(unknown-query-value-thing: 1000something)" srcset="./file_img_picture_preload.sjs?img7:source2"> + <source media="(unknown-query-value-thing: 1000something)" srcset="bogus ./file_img_picture_preload.sjs?img7:source3 ./file_img_picture_preload.sjs?img7:source4"> + <img id="img7" src="./file_img_picture_preload.sjs?img7:source5"> + </picture> + + <!-- Should select matching sources with known type, and shouldn't select later sources that have closer densities--> + <picture> + <source type="invalid/x-unsupported-image-type" srcset="./file_img_picture_preload.sjs?img8:source1"> + <source type="image/png" srcset="./file_img_picture_preload.sjs?img8:source2 2x"> + <source type="image/png" srcset="./file_img_picture_preload.sjs?img8:source3 1x"> + <img id="img8" src="./file_img_picture_preload.sjs?img8:source4" srcset="./file_img_picture_preload.sjs?img8:source5 2x"> + </picture> + + <!-- Should select matching sources by media, and shouldn't select later sources that have closer densities --> + <picture> + <source media="(bogusxx)" srcset="./file_img_picture_preload.sjs?img9:source1"> + <source media="(minimum-width: 1px)" srcset="./file_img_picture_preload.sjs?img9:source2 2x"> + <source media="(max-resolution: 0.5dppx)" srcset="./file_img_picture_preload.sjs?img9:source3 1x"> + <source media="(min-resolution: 2dppx)" srcset="./file_img_picture_preload.sjs?img9:source4 1x"> + <source media="(min-resolution: 1dppx)" srcset="./file_img_picture_preload.sjs?img9:source5 1x"> + <source media="(min-resolution: 1dppx)" srcset="./file_img_picture_preload.sjs?img9:source6 2x"> + <img id="img9" src="./file_img_picture_preload.sjs?img9:source7" srcset="./file_img_picture_preload.sjs?img9:source8 2x"> + </picture> + + <!-- Make sure we consider sizes properly in sources --> + <picture> + <source type="image/png" + sizes="10px" + srcset="./file_img_picture_preload.sjs?img10:source1 10w, ./file_img_picture_preload.sjs?img10:source2 20w"> + <img id="img10" src="./file_img_picture_preload.sjs?img10:source3"> + </picture> + + <!-- Make sure we consider sizes properly --> + <img id="img11" sizes="10px" + srcset="./file_img_picture_preload.sjs?img11:source1 10w, ./file_img_picture_preload.sjs?img11:source2 20w" + src="./file_img_picture_preload.sjs?img11:source3"> + + <script type="text/javascript"> + function afterLoad() { + // All images should have picked a source of the format + // imgName:sourceName, ensure we have one source per image and + // that it was preloaded. + + is(preloadedImages.length, EXPECTED_PRELOADS, + "Should have exactly " + EXPECTED_PRELOADS + " preloaded URLs"); + + // Split "imgName:source" sources we saw preload by img name + var preloadByName = {}; + for (var preload of preloadedImages) { + var split = preload.split(":"); + // Ensure we didn't preload two sources for the same image + ok(preloadByName[split[0]] === undefined, + "Should not have queried multiple sources for " + split[0] + + " (got " + split[1] + ", already had " + preloadByName[split[0]] + ")"); + preloadByName[split[0]] = split[1]; + } + + // Check all images, ensure each one had a preload + var images = document.querySelectorAll('img'); + for (var img of images) { + var imgName = img.id; + if (img.currentSrc) { + var split = img.currentSrc.split("?")[1].split(":"); + is(split[0], imgName, + "image " + imgName + " source matches element id"); + is(split[1], preloadByName[imgName], + "image " + imgName + " source should match preloaded source"); + // Remove from array + delete preloadByName[imgName]; + } else { + // img loaded nothing + is(preloadByName[imgName], null, + "Should not have preloaded anything for image " + imgName); + } + } + + notifyTestFinished(preloadedImages.length); + } + </script> +</body> +</html> |