EPUB conformance¶

This page reports how KitePDF does on the W3C EPUB 3 test suite, w3c/epub-tests at commit 54092b42. The suite has one test book for each normative statement of EPUB 3 and EPUB Reading Systems 3. Each test has the level of its statement: must, should or may. A test is deprecated when the specifications no longer recommend its feature.

The reading system under test is the library and its viewer together:

kitepdf-epub reads the book and lays it out.
KiteDocView shows the book, pairs the spreads and follows the links.
EpubScriptRunner of kitepdf-javascript runs the scripts of the book.

The implementation report gives each result in the format of the suite: true, false or "n/a". Each failure of a must or a should names the issue that tracks it.

Summary¶

Level	Tests	Passes	Fails	Not applicable
must	140	136	0	4
should	38	37	0	1
may	1	0	1	0
deprecated	27	25	1	1
all	206	198	2	6

How the results are known¶

A test in kitepdf-compose-viewer packs each test book of the suite and opens it as a reader does. When the KitePDF API shows the result, a check decides it. A check can read:

the text, the size and the page count of a page
what a page paints on a recording canvas
the rendition of a chapter and the table of contents
the spreads that the viewer pairs
the outcome of the scripts

These rows say Checked and tell what the check asserts. The test fails when a check and the report disagree, so a change that moves a result must also move the report.

The other rows need a person, for example to see whether a line breaks before a given character, or how read-aloud behaves. These rows say Judged and tell what was seen on the page or read in the code.

A test is not applicable in two cases:

It does not test a reading system. For example, it asks EPUBCheck to report an error.
It says that it does not apply to a reading system without the feature that it tests.

Run the test¶

CI checks out the suite at the pinned commit and runs the test on every push. To run the test locally, give it a checkout of the suite:

git clone https://github.com/w3c/epub-tests ../epub-tests
git -C ../epub-tests checkout 54092b4233253e9aac80e93ec4782b380b4b3403
KITEPDF_EPUB_TESTS=$PWD/../epub-tests/tests ./kotlin test -m kitepdf-compose-viewer -p jvm --include-classes='*EpubConformanceTest*'

Open Container Format¶

Test	Level	Result	How it is known
`ocf-font_obfuscation`	should	Passes	Checked: The quote draws in the obfuscated font, with glyph outlines from the font the book embeds.
`ocf-font_obfuscation_bis`	should	Passes	Checked: A font obfuscated with the wrong key does not load, so no glyph run takes its outlines from it.
`ocf-metainf-inc`	must	Passes	Checked: The book opens and its page shows the pass sentence.
`ocf-metainf-manifest`	must	Passes	Checked: The spine is the one chapter of the package, and no page shows the fail sentence.
`ocf-package_arbitrary`	must	Passes	Checked: The package at FOO/BAR opens and its page shows the pass sentence and not the fail one.
`ocf-package_multiple`	must	Passes	Checked: The first rendition, at FOO/BAR, opens and its page shows the pass sentence and not the fail one.
`ocf-url_link-leaking-relative`	must	Passes	Checked: The image whose path climbs past the root draws, 1000 by 562 pixels.
`ocf-url_link-path-absolute`	must	Passes	Checked: The image with a path from the root draws, 1000 by 562 pixels.
`ocf-url_link-relative`	must	Passes	Checked: The image with a relative path draws, 1000 by 562 pixels.
`ocf-url_manifest`	must	Passes	Checked: The chapter at EPUB/foo opens and shows the pass sentence.
`ocf-url_origin`	must	Passes	Checked: Two openings of the book, standing for two readers with their own instance keys, show different origins.
`ocf-url_parse-leaking-relative`	must	Passes	Checked: After the scripts run, the page shows the image address that `URL` resolves under the book's origin, which stays at the root of the book however many `..` segments climb above it.
`ocf-url_parse-path-absolute`	must	Passes	Checked: After the scripts run, the page shows the path-absolute address that `URL` resolves under the book's origin, from the root of the book.
`ocf-url_relative`	must	Passes	Checked: The chapter at foo/BAR/qux opens and shows the pass sentence.
`ocf-zip-comp`	must	Passes	Checked: The test book re-packed with its entries marked as bzip2 does not open: `EpubDocument.open` throws `EpubFormatException`. The folder itself can only hold Deflate.
`ocf-zip-mult`	must	Passes	Checked: The test book whose end record says it is the second segment of a split archive does not open: `EpubDocument.open` throws `EpubFormatException`.

Package Documents¶

Test	Level	Result	How it is known
`pkg-collections-unknown`	must	Passes	Checked: The book opens with its own title, not the unknown collection's, and shows the pass sentence.
`pkg-creator-order`	must	Passes	Checked: `epubMetadata.creators` lists the five creators in package order.
`pkg-linked-records`	should	Not applicable	Judged: Linked metadata records are not read, and the test applies only to a reading system that reads them. The title and creator come from the package.
`pkg-manifest-unknown`	must	Passes	Checked: The book opens and shows the pass sentence.
`pkg-manifest-unlisted-resource`	should	Passes	Checked: The image that the manifest does not list does not draw.
`pkg-meta-unknown`	must	Passes	Checked: The book opens with its own title, not the unknown meta's, and shows the pass sentence.
`pkg-meta-whitespace`	must	Passes	Checked: The creator reads "Dave Cramer" with one space, and the title reads as written.
`pkg-spine-duplicate-item-hyperlink`	must	Passes	Checked: The link to the repeated document goes to its first place in the spine.
`pkg-spine-duplicate-item-rendering`	must	Passes	Checked: The document listed three times in the spine shows three times, one page each.
`pkg-spine-duplicate-item-ui`	must	Passes	Checked: Each of the three places of the repeated document has a bookmark of its own chapter.
`pkg-spine-nonlinear-activation`	must	Passes	Checked: The link to the non-linear document goes to it, and it shows the pass sentence.
`pkg-spine-order`	must	Passes	Checked: The chapters follow the spine, whatever the file names.
`pkg-spine-order-svg`	must	Passes	Checked: The four SVG chapters follow the spine and draw "Page 1" to "Page 4".
`pkg-spine-unknown`	must	Passes	Checked: The book opens and shows the pass sentence.
`pkg-title-order`	must	Passes	Checked: The title is the first `dc:title` of the package.
`pkg-unique-id`	must	Passes	Checked: The two books that share an identifier open as two books, each with its own title.
`pkg-unique-id_duplicate`	must	Passes	Checked: The two books that share an identifier open as two books, each with its own title.
`pkg-version-backward`	must	Passes	Checked: A package with version 0 opens and shows the pass sentence.

Publication Resources¶

Test	Level	Result	How it is known
`pub-data-urls_browsing-context`	must	Passes	Checked: The image whose source is a `data:` URL draws.
`pub-data-urls_top-level-content`	must	Passes	Checked: The fixed-layout page draws the SVG of its `data:` URL in place, and the book keeps its two pages.
`pub-external-links`	should	Passes	Judged: when `onLinkTap` does not take the web link, `KiteDocView` asks the reader and then opens the address in the browser through `LocalUriHandler`. A scene test covers the prompt.
`pub-external-links_consent`	should	Passes	Judged: `KiteDocView` asks the reader before it opens the mail link, and opens the mail app through `LocalUriHandler` only after the reader taps Open. A scene test covers the prompt.
`pub-file-urls`	must	Passes	Checked: The three iframes point at `file:` URLs, none of which the book can read, and their boxes stay empty.
`pub-xml-external-id`	must	Passes	Checked: No page shows the fail sentence: the external entity is not resolved, and stands for nothing, and the DOCTYPE's internal subset leaves nothing of itself on the page.
`pub-xml-names`	must	Passes	Checked: `EpubDocument.markupErrors` reports that `p::p` is not a name with a namespace prefix, and `KiteDocView` shows the error on the page.
`pub-xml-non-validating_comment`	must	Passes	Checked: The spine holds the two chapters, and the commented-out item is not one of them.
`pub-xml-non-validating_unclosed`	must	Passes	Checked: `EpubDocument.markupErrors` reports that the paragraph is never closed, and `KiteDocView` shows the error on the page.
`sec-untrusted-consent_network`	should	Passes	Checked: Opened with the default settings, the page fetches nothing: no image draws, nothing arrives from the network, and the remote stylesheet does not turn the text red. Fetching starts only when the host app passes a fetcher, which is where the reader consents.
`sec-untrusted-consent_scripting`	should	Passes	Checked: Without `EpubScriptRunner` the page still says "No script has been executed.": scripts run only when the host app passes a runner, which is where the reader consents.

Core Media Types¶

Test	Level	Result	How it is known
`pub-cmt-avif`	must	Passes	Checked: The AVIF draws.
`pub-cmt-gif`	must	Passes	Checked: The GIF draws.
`pub-cmt-jpeg`	must	Passes	Checked: The JPEG draws.
`pub-cmt-jxl`	must	Passes	Checked: The JPEG XL draws.
`pub-cmt-mp3`	must	Passes	Checked: The page offers the MP3 as audio with controls, which `kitepdf-media` plays on Android, iOS and the desktop JVM.
`pub-cmt-mp4`	must	Passes	Checked: The page offers the M4A as audio with controls, which `kitepdf-media` plays on Android, iOS and the desktop JVM.
`pub-cmt-opus`	must	Passes	Checked: The page offers the Opus file as audio with controls, which `kitepdf-media` plays on Android, iOS and the desktop JVM.
`pub-cmt-png`	must	Passes	Checked: The PNG draws.
`pub-cmt-svg`	must	Passes	Checked: The SVG image draws its red heart.
`pub-cmt-webp`	must	Passes	Checked: The WebP draws.

Manifest Fallbacks¶

Test	Level	Result	How it is known
`pub-foreign_bad-fallback`	must	Passes	Checked: The book, whose only spine item has no content document in its fallback chain and no markup in its bytes, is refused with a format error, as the test allows.
`pub-foreign_image`	must	Passes	Checked: The PSD image falls back to its PNG, which draws.
`pub-foreign_json-spine`	must	Passes	Checked: The JSON spine item falls back to its XHTML document, which shows the pass sentence.
`pub-foreign_xml-spine`	must	Passes	Checked: The XML spine item falls back to its XHTML document, which shows the pass sentence.
`pub-foreign_xml-suffix-spine`	must	Passes	Checked: The `+xml` spine item falls back to its XHTML document, which shows the pass sentence.

Content Documents¶

Test	Level	Result	How it is known
`cnt-css-fonts_ot`	must	Passes	Checked: The item draws in the OpenType font of its `@font-face`, with glyph outlines from the book.
`cnt-css-fonts_tt`	must	Passes	Checked: The item draws in the TrueType font of its `@font-face`, with glyph outlines from the book.
`cnt-css-fonts_woff`	must	Passes	Checked: The item draws in the WOFF font of its `@font-face`, with glyph outlines from the book.
`cnt-css-fonts_woff2`	must	Passes	Checked: The item draws in the WOFF2 font of its `@font-face`, with glyph outlines from the book.
`cnt-mathml-support`	must	Passes	Checked: The equation draws as MathML: the exponent 2 is smaller than the base and raised above it.
`cnt-svg-css`	must	Passes	Checked: The SVG chapter fills its shapes with the star pattern of its CSS.
`cnt-svg-css-inclusion`	must	Passes	Checked: The inline SVG fills with the star pattern of the document's CSS.
`cnt-svg-css-reference`	must	Passes	Checked: The SVG referenced by `img` stays solid green: the document's CSS does not reach it.
`cnt-svg-embedded`	must	Passes	Checked: The inline SVG draws its red heart.
`cnt-svg-support`	must	Passes	Checked: The SVG chapter draws its red heart and its text.
`cnt-xhtml-support`	must	Passes	Checked: The XHTML chapter shows its pass sentence.
`css-epub-hyphens`	should	Passes	Judged: `-epub-hyphens` is read: `none` never hyphenates, `manual` breaks at soft hyphens and `auto` hyphenates by the language's patterns. At the test's page width no line happens to end on a break point, so this is judged from the code and narrower pages.
`css-epub-line-break`	should	Passes	Checked: Over many widths of the page, no line runs past its edge, `auto` and `strict` start no line with 々 or ぁ, `normal` starts some with ぁ and none with 々, and `loose` starts some with each.
`css-epub-text-align-last`	should	Passes	Checked: The last line of each sample sits where its `-epub-text-align-last` puts it: at the left edge for `auto`, `start`, `left` and `end` in right-to-left text, at the right edge for `right`, centred for `center`, and across the line for `justify`.
`css-epub-text-combine-horizontal`	should	Passes	Checked: Tests 2 and 4 set each pair of digits upright and side by side in the space of one character, an em down the column from the last, and tests 1 and 3 set the same digits one by one, turned as the mixed rule turns them.
`css-epub-text-emphasis`	should	Passes	Checked: The first chapter draws over its text each mark its style sheet asks for, from the book's font where the font has it, a blue one for test 12 and one under the text for test 13, and the vertical chapters draw them left of the first column and then right of it. Tests 8 to 11 name other marks than their style sheet asks for; the check follows the style sheet.
`css-epub-text-orientation`	should	Passes	Checked: The test's second chapter lays out vertically: the mixed paragraph stands its Japanese up and turns its English, the upright one stands its English letters up, and the sideways ones turn their Japanese too.
`css-epub-text-transform`	should	Passes	Checked: The digits and letters of the sample read as their full-width forms and stand upright in the vertical chapter, as the Japanese beside them does.
`css-epub-text-underline-position`	should	Passes	Checked: The first chapter's underline sits under the baseline and above the 0.2 em that descenders reach, the second chapter's sits below them, and the vertical chapters draw it left of the first column and then right of it.
`css-epub-word-break`	should	Passes	Checked: The `normal` and `keep-all` samples keep every word whole, and the `break-all` sample breaks inside words and fills each line to its edge.
`css-epub-writing-mode`	should	Passes	Checked: Chapter 1 lays out horizontally and chapters 2 and 3 vertically.

Internationalization¶

Test	Level	Result	How it is known
`pkg-dir-auto_root-rtl`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is false, since the title's own `auto` goes by its first strong character, the Latin C of "CSS:", over the package's `rtl`, so the title displays incorrectly as the test expects.
`pkg-dir-auto_root-unset`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is false, since the title's `auto` goes by its first strong character, the Latin C of "CSS:", so the title displays incorrectly as the test expects.
`pkg-dir_but_not_content`	must	Passes	Checked: The list reads left to right: the package's `dir` does not reach the content.
`pkg-dir_creator-rtl`	must	Passes	Checked: `epubMetadata.creatorsRightToLeft` says the one creator reads right to left by its own `dir`.
`pkg-dir_rtl-root-ltr`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is true, since the title's own `rtl` wins over the package's `ltr`.
`pkg-dir_rtl-root-unset`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is true by the title's own `rtl`.
`pkg-dir_unset-root-rtl`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is true by the package's `rtl`, which the title inherits.
`pkg-dir_unset-root-unset`	must	Passes	Checked: `epubMetadata.titleRightToLeft` is false, since with no `dir` anywhere the title goes by its first strong character, the Latin C of "CSS:", so it displays incorrectly as the test expects.
`pkg-lang_but_not_content`	must	Passes	Checked: The `q` element shows English quotation marks, not the French ones of the package language.
`pkg-spine-progression-default`	must	Passes	Checked: The book of Arabic language with a default spine progresses right to left.
`pkg-spine-progression-pre-paginated`	must	Passes	Checked: The pages progress left to right and pair into spreads with the first page on the left.
`pkg-spine-progression_ltr`	must	Passes	Checked: The pages progress left to right, paired with the first page on the left.
`pkg-spine-progression_rtl`	must	Passes	Checked: The book progresses right to left, and the viewer pairs its pages that way.

Test	Level	Result	How it is known
`nav-access`	must	Passes	Checked: The table of contents has the one entry, which the outline panel lists.
`nav-activation`	must	Passes	Checked: The entry for the second document goes to it, and it shows the pass sentence.
`nav-non-text_img`	should	Passes	Checked: The entry made of an image takes the image's `alt` as its label.
`nav-non-text_img_title`	should	Passes	Checked: The entry made of an image takes its `alt`, not its `title`, as its label.
`nav-spine_in-spine`	must	Passes	Checked: The navigation document in the spine shows both links, and the table of contents has both entries.
`nav-spine_in-spine-hidden-toc-css`	must	Passes	Checked: The table of contents has both entries, while the page hides the second as its CSS says.
`nav-spine_in-spine-hidden-toc-html`	must	Passes	Checked: The table of contents has both entries, while the page hides the second as its `hidden` says.
`nav-spine_in-spine-no-list-style`	must	Passes	Checked: The outline lists the two titles alone, with no number or letter before them.
`nav-spine_not-in-spine`	must	Passes	Checked: The table of contents has both entries, and the navigation document is not a chapter.

Structural Semantics¶

Test	Level	Result	How it is known
`pss-support`	may	Fails	Judged: The note reference and its footnote are found (`linkTarget`), but `KiteDocView` shows no popup of its own; the app builds one from `onLinkTap`.
`pss-support_ignore-title`	must	Passes	Checked: A link to the head's `title` is not a footnote, while the note in the body is one.

Scripting¶

Test	Level	Result	How it is known
`scr-not-support_ccscript-modify-host`	must	Passes	Checked: The iframe's box draws its document, whose script ran, and the chapter's text stays: the frame's `parent` is its own window.
`scr-not-support_ccscript-modify-size`	must	Passes	Checked: The iframe's box draws its document, whose script ran, and the box keeps its shape of 500 by 70 pixels.
`scr-readingsystem-features`	must	Passes	Checked: After the scripts run, the page lists each of the six features that `hasFeature` answers as true or false, and none as unimplemented.
`scr-readingsystem-support`	must	Passes	Checked: After the scripts run, the page says the reading system implements `epubReadingSystem`.
`scr-readingsystem-support_iframe`	must	Passes	Checked: The iframe's box draws its document, whose script finds `epubReadingSystem`.
`scr-readingsystem-support_iframe_svg`	must	Passes	Checked: The iframe's box draws its SVG document, whose script finds `epubReadingSystem`.
`scr-readingsystem-support_svg`	must	Passes	Checked: After the scripts run in the SVG chapter, it draws the pass text about `epubReadingSystem`.
`scr-storage-delete`	should	Passes	Checked: Opened a second time, the page says persistent data is not kept, so the test passes: local storage lives as long as the session.
`scr-support`	should	Passes	Checked: After the scripts run, the page says scripting is supported and the test passes.
`scr-support-fallback`	must	Not applicable	Judged: Scripts run, so the page itself says its manifest fallback is unused and the test does not apply.
`scr-support_iframe`	should	Passes	Checked: The iframe's box draws its document, whose script says scripting works.
`scr-support_origin`	must	Passes	Checked: After the scripts run, both chapters show the same origin, `epub://` and a host.
`scr-support_origin_unique`	must	Passes	Checked: After the scripts run, the book shows an origin other than `scr-support_origin`'s.
`scr-support_scrolled-continuous`	should	Passes	Checked: Each chapter is one page as tall as its content, and `KiteDocLayout.forDocument` shows the book as one continuous strip.
`scr-support_scrolled-doc`	must	Passes	Checked: Each chapter is one page as tall as its content, and `KiteDocLayout.forDocument` shows the book in a pager whose chapters fill the width and scroll down.
`scr-support_svg`	should	Passes	Checked: After the scripts run in the SVG chapter, it draws the pass text and not the fail text.

Fixed Layout¶

Test	Level	Result	How it is known
`lay-page-layout-both`	should	Passes	Checked: The reflowable chapter flows over pages between the fixed ones, each one page of its viewport.
`lay-page-layout-both-spread`	must	Passes	Checked: The last page, which asks for the left, sits alone in the left half of its spread.
`lay-pkg-flow-paginated`	should	Passes	Checked: With `flow paginated`, the chapters are cut into pages.
`lay-pkg-flow-scrolled-continuous`	should	Passes	Checked: Each chapter is one page as tall as its content, and `KiteDocLayout.forDocument` shows the book as one continuous strip.
`lay-pkg-flow-scrolled-doc`	should	Passes	Checked: Each chapter is one page as tall as its content, and `KiteDocLayout.forDocument` shows the book in a pager whose chapters fill the width and scroll down.
`lay-reflow-align-x-center`	must	Not applicable	Judged: `rendition:align-x-center` is not supported, and the test applies only to a reading system that supports it.
`lay-rendition-flow-pre-pag`	must	Passes	Checked: The fixed chapters of a scrolled book are one page each of their viewport.
`lay-viewport-meta-prop`	must	Passes	Checked: All four pages take the same 900 by 600 viewport whatever their scale keys say; the viewer's zoom follows its own settings.

Pre-paginated Layout¶

Test	Level	Result	How it is known
`fxl-layout-duplication`	deprecated	Not applicable	Judged: Only EPUBCheck can pass it, by reporting the duplicated `rendition:layout`. KitePDF keeps the first value.
`fxl-page-spread-break`	deprecated	Passes	Checked: Each chapter is one 900 by 600 page despite `page-break-before`, and the viewer pairs them two by two.
`fxl-page-spread-center`	deprecated	Passes	Checked: The first chapter asks for the centre, and the viewer gives it a spread of its own, drawn centred.
`fxl-spine-overrides_behave-as-global`	deprecated	Passes	Checked: The fixed chapter is one page of its viewport and the overriding chapter flows over pages.
`fxl-spine-overrides_behave-as-global-bis`	deprecated	Passes	Checked: The overriding chapter is one fixed page of its viewport between two reflowable ones.
`fxl-spine-overrides_duplicate`	deprecated	Passes	Checked: Of the two overrides on the itemref, the first, reflowable, wins.
`lay-fxl-layout-default`	deprecated	Passes	Checked: With no `rendition:layout`, the book is reflowable and flows over pages.
`lay-fxl-layout-pre-paginated`	deprecated	Passes	Checked: Each chapter is one 900 by 600 page, in spine order.
`lay-fxl-layout-pre-paginated-spreads`	deprecated	Passes	Checked: The viewer pairs the four pages into two spreads with no lone page between.
`lay-fxl-orientation-default`	deprecated	Passes	Checked: Every chapter reads orientation auto, and the viewer follows the device.
`lay-fxl-orientation-landscape`	deprecated	Fails	Judged: `rendition:orientation landscape` is read, but `KiteDocView` neither rotates nor tells the reader.
`lay-fxl-page-spread-combined`	deprecated	Passes	Checked: The left and right pages share one spread, the left one first.
`lay-fxl-page-spread-left`	deprecated	Passes	Checked: The `page-spread-left` page opens its spread on the left.
`lay-fxl-page-spread-right`	deprecated	Passes	Checked: The `page-spread-right` first page sits alone in the right half of its spread, and the pages after it pair.
`lay-fxl-spread-auto`	deprecated	Passes	Checked: With `spread auto`, the viewer pairs the pages.
`lay-fxl-spread-both`	deprecated	Passes	Checked: With `spread both`, the viewer pairs the pages in landscape and in portrait.
`lay-fxl-spread-default`	deprecated	Passes	Checked: With no `rendition:spread`, the value is auto and the viewer pairs the pages.
`lay-fxl-spread-landscape`	deprecated	Passes	Checked: With `spread landscape`, the viewer pairs the pages in landscape only.
`lay-fxl-spread-none`	deprecated	Passes	Checked: With `spread none`, every page shows alone.
`lay-fxl-svg-icb_multi`	deprecated	Passes	Checked: Each SVG page takes the size of its own `viewBox`, 900 by 600 and 1200 by 600.
`lay-fxl-xhtml-icb`	deprecated	Passes	Checked: The page is its 900 by 600 pixel viewport, and the grid of layered gradients paints over the red box, in 18 by 12 cells.
`lay-fxl-xhtml-icb_device_sizes`	deprecated	Passes	Checked: The grid of layered gradients paints over the red box. `device-width` and `device-height` give the page the size of the reader's, so it fills the display.
`lay-fxl-xhtml-icb_invalid_meta`	deprecated	Passes	Checked: Width and height are read from the invalid tag, so the second page is 900 by 600 pixels too, and both paint the grid of layered gradients over the red box.
`lay-fxl-xhtml-icb_multi`	deprecated	Passes	Checked: Each page takes its own viewport, 900 and 1400 pixels wide, and both paint the grid of layered gradients over the red box, which shows to the right of it on the wide page.
`lay-fxl-xhtml-icb_multi_declarations`	deprecated	Passes	Checked: Of two viewport tags, the first sizes the page, 1000 by 600.
`lay-fxl-xhtml-icb_repeated-in-meta`	deprecated	Passes	Checked: Of a repeated `width` and `height`, the first sizes the page, 900 by 600.
`lay-fxl-xhtml-icb_units`	deprecated	Passes	Checked: `width=1000px, height=600mm` sizes the page 1000 by 600.
`lay-pp-embedded-images`	must	Passes	Checked: Each of the nine chapters is one page of its viewport that draws its image, and the title page asks for the centre.
`lay-pp-embedded-images-svg`	must	Passes	Checked: The XHTML title and the SVG plates are one page each of their viewport, each drawing its image.
`lay-pp-images-in-spine`	must	Passes	Checked: Each image spine item shows the image itself, as one fixed page at its pixel size.
`lay-pp-images-mixed`	must	Passes	Checked: The plates draw their images, and the two image spine items show the images themselves, at the same size.
`lay-pp-layout-default`	must	Passes	Checked: With no `rendition:layout`, the book is reflowable and flows over pages.
`lay-pp-layout-duplication`	must	Not applicable	Judged: Only EPUBCheck can pass it, by reporting the duplicated `rendition:layout`. KitePDF keeps the first value.
`lay-pp-layout-pre-paginated`	must	Passes	Checked: Each chapter is one 900 by 600 page, in spine order.
`lay-pp-layout-pre-paginated-spreads`	must	Passes	Checked: The viewer pairs the four pages into two spreads with no lone page between.
`lay-pp-page-spread-combined`	should	Passes	Checked: The left and right pages share one spread, the left one first.
`lay-pp-page-spread-left`	should	Passes	Checked: The `page-spread-left` page opens its spread on the left.
`lay-pp-page-spread-right`	should	Passes	Checked: The `page-spread-right` first page sits alone in the right half of its spread, and the pages after it pair.
`lay-pp-spine-overrides_behave-as-global`	must	Passes	Checked: The fixed chapter is one page of its viewport and the overriding chapter flows over pages.
`lay-pp-spine-overrides_behave-as-global-bis`	must	Passes	Checked: The overriding chapter is one fixed page of its viewport between two reflowable ones.
`lay-pp-spine-overrides_image-only-pp`	must	Passes	Checked: The fixed chapter is one page that draws its image, and the overriding chapter flows over pages.
`lay-pp-spine-overrides_image-only-reflow`	must	Passes	Checked: The overriding chapter is one fixed page that draws its image between two reflowable ones.
`lay-pp-spine-overrides_image-spine-pp`	must	Passes	Checked: The image spine item shows the image as one fixed page, and the overriding chapter flows.
`lay-pp-spine-overrides_image-spine-reflow`	must	Passes	Checked: The image spine item shows the image as one fixed page, between reflowable chapters.
`lay-pp-spread-none`	must	Passes	Checked: With `spread none`, every page shows alone.
`lay-pp-svg-icb_multi`	must	Passes	Checked: Each SVG page takes the size of its own `viewBox`, 900 by 600 and 1200 by 600.
`lay-pp-xhtml-icb`	must	Passes	Checked: The page is its 900 by 600 pixel viewport, and the grid of layered gradients paints over the red box, in 18 by 12 cells.
`lay-pp-xhtml-icb_invalid_meta`	should	Passes	Checked: Width and height are read from the invalid tag, so the second page is 900 by 600 pixels too, and both paint the grid of layered gradients over the red box.
`lay-pp-xhtml-icb_multi`	must	Passes	Checked: Each page takes its own viewport, 900 and 1400 pixels wide, and both paint the grid of layered gradients over the red box, which shows to the right of it on the wide page.
`lay-pp-xhtml-icb_multi_declarations`	must	Passes	Checked: Of two viewport tags, the first sizes the page, 1000 by 600.
`lay-pp-xhtml-icb_repeated-in-meta`	must	Passes	Checked: Of a repeated `width` and `height`, the first sizes the page, 900 by 600.
`lay-pp-xhtml-icb_units`	must	Passes	Checked: `width=1000px, height=600mm` sizes the page 1000 by 600.

Roll Layout¶

Test	Level	Result	How it is known
`lay-roll-embedded-images`	must	Passes	Checked: Each plate is one page at its own aspect, and `KiteDocLayout.forDocument` shows the book as one strip whose pages fill the width with no gap.
`lay-roll-embedded-images-svg`	must	Passes	Checked: Each plate is one page at its own aspect, and `KiteDocLayout.forDocument` shows the book as one strip whose pages fill the width with no gap.
`lay-roll-images-in-spine`	must	Passes	Checked: Each plate is one page at its own aspect, and `KiteDocLayout.forDocument` shows the book as one strip whose pages fill the width with no gap.
`lay-roll-images-mixed`	must	Passes	Checked: Each plate is one page at its own aspect, and `KiteDocLayout.forDocument` shows the book as one strip whose pages fill the width with no gap.

Media Overlays¶

Test	Level	Result	How it is known
`mol-audio`	must	Passes	Checked: The overlay's clip reads its audio file from 29.268 s to 44.783 s, which `KiteReadAloud` plays while it highlights the text.
`mol-audio-exceeding-clipend`	must	Passes	Judged: From the code of `KiteReadAloud`: a clip whose `clipEnd` lies past the end of its file ends with the file, and reading goes on.
`mol-audio-no-clipbegin`	must	Passes	Checked: A clip with no `clipBegin` starts at 0 s.
`mol-audio-no-clipend`	must	Passes	Checked: A clip with no `clipEnd` plays to the end of its file.
`mol-css`	should	Passes	Checked: With the first clip marked through `EpubDocument.markNarration`, the word `Call` draws light on a green fill and the rest of the chapter grey, as `KiteReadAloud` marks each clip.
`mol-ignore`	must	Not applicable	Judged: The test is for reading systems without media overlays, and says one with them should skip it.
`mol-navigation`	must	Passes	Judged: After a jump through the table of contents, `KiteReadAloud` goes on from the first clip of the chapter the reader went to, as `ReadAloudTest` checks on a book of its own.
`mol-support_xhtml`	must	Passes	Judged: From the code of `KiteReadAloud`: it reads the overlay clip by clip, highlights each piece of text and turns the page with the reading.
`mol-support_xhtml-fxl`	must	Passes	Judged: From the code of `KiteReadAloud`: it reads the fixed page's overlay as it does a reflowable one.
`mol-support_xhtml-load`	must	Passes	Checked: The overlay that two chapters share gives each only the clips of its own text.
`mol-support_xhtml-load-fxl`	must	Passes	Checked: The overlay that two chapters share gives each only the clips of its own text.
`mol-support_xhtml-load-next`	should	Passes	Judged: From the code of `KiteReadAloud`: when a chapter's overlay ends it goes on with the next chapter's and turns the page itself.
`mol-support_xhtml-load-next-fxl`	should	Passes	Judged: From the code of `KiteReadAloud`: on fixed pages too, reading moves on to the next page's overlay and turns the page.
`mol-timing-synchronization`	must	Passes	Judged: From the code of `KiteReadAloud`: each clip's text is highlighted while its audio plays.
`mol-timing-synchronization_fxl`	must	Passes	Checked: The overlay that three pages share gives each page its one clip.
`mol-timing-synchronization_multiple_audio`	must	Passes	Judged: From the code of `KiteReadAloud`: the clips of both audio files read in order, the second file opening in the same player.
`mol-timing-synchronization_multiple_audio-fxl`	must	Passes	Judged: From the code of `KiteReadAloud`: on the fixed page too, the reading goes from the first audio file to the second in clip order.
`mol-timing-synchronization_svg`	must	Passes	Checked: Each clip's text inside the SVG chapter has a place on its page, one rectangle per line it draws.
`mol-timing-synchronization_svg-fxl`	must	Passes	Checked: Each clip's text inside the SVG page has a place on it, one rectangle per line it draws.
`mol-tts_multi`	should	Passes	Checked: Each of the four clips has no audio, and `EpubDocument.readingOrderOf` gives its sentence, which `KiteReadAloud` hands to the app's speech hook.
`mol-tts_single`	should	Passes	Checked: The one clip has no audio, and `EpubDocument.readingOrderOf` gives the text of the whole section, which `KiteReadAloud` hands to the app's speech hook.