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<!doctype html>
<meta charset=utf-8>
<title>CSS Text 3 test coverage report</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../default.css" rel="stylesheet" type="text/css">
<style>/* style-wpt */ :root { --wpt-border: hsl(0, 0%, 60%); --wpt-bg: hsl(0, 0%, 95%); --wpt-text: var(--text); --wptheading-text: hsl(0, 0%, 30%); } @media (prefers-color-scheme: dark) { :root { --wpt-border: hsl(0, 0%, 30%); --wpt-bg: var(--borderedblock-bg); --wpt-text: var(--text); --wptheading-text: hsl(0, 0%, 60%); } } .wpt-tests-block { list-style: none; border-left: .5em solid var(--wpt-border); background: var(--wpt-bg); color: var(--wpt-text); margin: 1em auto; padding: .5em; } .wpt-tests-block summary { color: var(--wptheading-text); font-weight: normal; text-transform: uppercase; } .wpt-tests-block summary::marker{ color: var(--wpt-border); } .wpt-tests-block summary:hover::marker{ color: var(--wpt-text); } /* The only content of a wpt test block in its closed state is the <summary>, which contains the word TESTS, and that is absolutely positioned. In that closed state, wpt test blocks are styled to have a top margin whose height is exactly equal to the height of the absolutely positioned <summary>, and no other background/padding/margin/border. The wpt test block elements will therefore allow the maring of the previous/next block elements to collapse through them; if this combined margin would be larger than its own top margin, it stays as is, and therefore the pre-existing vertical rhythm of the document is undisturbed. If that combined margin would be smaller, it is grown to that size. This means that the wpt test block ensures that there's always enough vertical space to insert the summary, without adding more than is needed. */ .wpt-tests-block:not([open]){ padding: 0; border: none; background: none; font-size: 0.75em; line-height: 1; position: relative; margin: 1em 0 0; } .wpt-tests-block:not([open]) summary { position: absolute; right: 0; bottom: 0; } /* It is possible that both the last child of a block element and the block element itself would be annotated with a <wpt> block each. If the block element has a padding or a border, that's fine, but otherwise the bottom margin of the block and of its last child would collapse and both <wpt> elements would overlap, being both placed there. To avoid that, add 1px of padding to the <wpt> element annotating the last child to prevent the bottom margin of the block and of its last child from collapsing (and as much negative margin, as wel only want to prevent margin collapsing, but are not trying to actually take more space). */ .wpt-tests-block:not([open]):last-child { padding-bottom: 1px; margin-bottom: -1px; } /* Exception to the previous rule: don't do that in non-last list items, because it's not necessary, and would therefore consume more space than strictly needed. Lists must have list items as children, not <wpt> elements, so a <wpt> element cannot be a sibling of a list item, and the collision that the previous rule avoids cannot happen. */ li:not(:last-child) > .wpt-tests-block:not([open]):last-child, dd:not(:last-child) > .wpt-tests-block:not([open]):last-child { padding-bottom: 0; margin-bottom: 0; } .wpt-tests-block:not([open]):not(:hover){ opacity: 0.5; } .wpt-tests-list { list-style: none; display: grid; margin: 0; padding: 0; grid-template-columns: 1fr auto auto; grid-column-gap: .5em; } .wpt-tests-block hr:last-child { display: none; } .wpt-test { display: contents; } .wpt-test > a { text-decoration: underline; border: none; } .wpt-test > .wpt-name { grid-column: 1; } .wpt-test > .wpt-live { grid-column: 2; } .wpt-test > .wpt-source { grid-column: 3; } </style>
<div class=head>
<h1 id=title>CSS Text 3 test coverage report</h1>
<h2 class=subtitle>2023-08-25</h2>
<dl>
<dt class="editor">Prepared by:
<dd class="editor p-author h-card vcard" data-editor-id="43241"><a class="p-name fn u-url url" href="https://florian.rivoal.net">Florian Rivoal</a> (<span class="p-org org">Invited Expert</span>)
</dl>
<hr title="Separator for header">
</div>
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<main>
<h2 class="heading settled" data-level="1" id="intro"><span class="secno">1. </span><span class="content"> Introduction</span><a class="self-link" href="#intro"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>The test coverage information in this specification
covers <a href="https://github.com/web-platform-tests/wpt/tree/master/css/css-text/">wpt/css/css-text/</a> and subdirectories,
as well as those tests in <a href="https://github.com/web-platform-tests/wpt/tree/master/css/CSS2/">wpt/css/CSS2/</a> and subdirectories
that relate to this specification.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="1.1" id="placement"><span class="secno">1.1. </span><span class="content"> Module Interactions</span><a class="self-link" href="#placement"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests not needed for this section.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="1.2" id="values"><span class="secno">1.2. </span><span class="content"> Value Definitions</span><a class="self-link" href="#values"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests not really needed for this section;
could possibly test that css-wide keywords apply to every property.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="1.3" id="languages"><span class="secno">1.3. </span><span class="content"> Languages and Typesetting</span><a class="self-link" href="#languages"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests not needed for this section:
these are definitions,
they get tested through their application,
not by themselves.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="1.4" id="characters"><span class="secno">1.4. </span><span class="content"> Characters and Letters</span><a class="self-link" href="#characters"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
For the most part, tests not really needed for this section:
these are definitions,
they get tested through their applications,
by themselves.
The few testable assertions that are made have coverage.
</p><p>Possible additions:</p>
<ul>
<li data-md="">
<p>turning the content of example 1 into tests (first, check that it’s not already done).</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="1.5" id="text-encoding"><span class="secno">1.5. </span><span class="content"> Text Processing</span><a class="self-link" href="#text-encoding"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has adequate coverage.
Exhaustive coverage unrealistic,
since this section is effectively a dependency on all of Unicode.
Some tests nonetheless provided for key functionality
(such as the effect of certain control characters on Arabic shaping).</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="2" id="transforming"><span class="secno">2. </span><span class="content"> Transforming Text</span><a class="self-link" href="#transforming"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section and its subsections have good test coverage overall,
and very good i18n coverage in particular.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>no test of Animation type.</p>
</li><li data-md="">
<p>Applies to text</p>
</li></ul>
<p>Possible additions:</p>
<ul>
<li data-md="">
<p>An automated test for plain text copy&paste not applying transforms. Not clear such an <em>automated</em> test is possible, but it would be nice to have one if it were.</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="2.1" id="text-transform-property"><span class="secno">2.1. </span><span class="content"> Case Transforms: the <a class="property css" data-link-type="property" href="#propdef-text-transform" id="ref-for-propdef-text-transform②">text-transform</a> property</span><span id="text-transform"></span><span id="caps-prop"></span><a class="self-link" href="#text-transform-property"></a></h3>
<h4 class="heading settled" data-level="2.1.1" id="text-transform-mapping"><span class="secno">2.1.1. </span><span class="content"> Mapping Rules</span><a class="self-link" href="#text-transform-mapping"></a></h4>
<h4 class="heading settled" data-level="2.1.2" id="text-transform-order"><span class="secno">2.1.2. </span><span class="content"> Order of Operations</span><a class="self-link" href="#text-transform-order"></a></h4>
<h2 class="heading settled" data-level="3" id="white-space-property"><span class="secno">3. </span><span class="content"> White Space and Wrapping: the <a class="property css" data-link-type="property" href="#propdef-white-space" id="ref-for-propdef-white-space">white-space</a> property</span><span id="white-space-collapsing"></span><span id="text-wrap"></span><a class="self-link" href="#white-space-property"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has good overall test coverage,
particularly through tests for <a href="#white-space-processing">§ 4 White Space Processing & Control Characters</a> and subsections.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>No test of Animation type</p>
</li><li data-md="">
<p>Intrinsic (min and max) sizing tests for normal and nowrap.</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="4" id="white-space-processing"><span class="secno">4. </span><span class="content"> White Space Processing & Control Characters</span><a class="self-link" href="#white-space-processing"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has reasonably good test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>“As required by Unicode, unsupported Default_ignorable characters must be ignored for text rendering”</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="4.1" id="white-space-rules"><span class="secno">4.1. </span><span class="content"> The White Space Processing Rules</span><a class="self-link" href="#white-space-rules"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has good test coverage,
all parts are well exercised.
Most tests to be found in subsections.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="4.1.1" id="white-space-phase-1"><span class="secno">4.1.1. </span><span class="content"> Phase I: Collapsing and Transformation</span><a class="self-link" href="#white-space-phase-1"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has good test coverage,
all parts are well exercised.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="4.1.2" id="white-space-phase-2"><span class="secno">4.1.2. </span><span class="content"> Phase II: Trimming and Positioning</span><a class="self-link" href="#white-space-phase-2"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has good test coverage,
all parts are well exercised.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="4.1.3" id="line-break-transform"><span class="secno">4.1.3. </span><span class="content"> Segment Break Transformation Rules</span><a class="self-link" href="#line-break-transform"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has reasonable test coverage,
though some assertions are only tested indirectly through
test for other features that rely on this,
rather than by dedicated tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="4.2" id="tab-size-property"><span class="secno">4.2. </span><span class="content"> Tab Character Size: the <a class="property css" data-link-type="property" href="#propdef-tab-size" id="ref-for-propdef-tab-size②">tab-size</a> property</span><span id="tab-size"></span><a class="self-link" href="#tab-size-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has good test coverage.
</p><p>Missing test:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="5" id="line-breaking"><span class="secno">5. </span><span class="content"> Line Breaking and Word Boundaries</span><a class="self-link" href="#line-breaking"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
Tests mostly not needed for this section:
these are definitions,
they get tested through their application,
not by themselves.
</p><p>Can be a good section
to host tests for i18n requirements
not covered in detail by the spec.</p>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="5.1" id="line-break-details"><span class="secno">5.1. </span><span class="content"> Line Breaking Details</span><a class="self-link" href="#line-break-details"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>For soft wrap opportunities before the first or after the last character of a box, the break occurs immediately before/after the box (at its margin edge) rather than breaking the box between its content edge and the content.</p>
</li></ul>
<p>Untestable(?):</p>
<ul>
<li data-md="">
<p>UAs that allow wrapping at punctuation other than spaces should prioritize breakpoints. […]</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="5.2" id="word-break-property"><span class="secno">5.2. </span><span class="content"> Breaking Rules for Letters: the <a class="property css" data-link-type="property" href="#propdef-word-break" id="ref-for-propdef-word-break③">word-break</a> property</span><span id="word-break"></span><a class="self-link" href="#word-break-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>No test of Animation type.</p>
</li><li data-md="">
<p>affects intrinsic sizing (tested for word-break:break-word)</p>
</li><li data-md="">
<p>treating non-letter typographic character units belonging to the NU, AL, AI, or ID Unicode line breaking classes</p>
</li><li data-md="">
<p>any typographic character units resolving to the any typographic letter units (and any typographic character units resolving to the <code>NU</code> (“numeric”), <code>AL</code> (“alphabetic”), or <code>SA</code> (“Southeast Asian”) line breaking classes</p>
</li><li data-md="">
<p>effect of word-break:keep-all on NU and AI classes</p>
</li><li data-md="">
<p>Symbols that line-break the same way as letters of a particular category are affected the same way as those letters.</p>
</li><li data-md="">
<p>does not suppress wbr</p>
</li><li data-md="">
<p>More tests for “does not affect rules governing the soft wrap opportunities created around punctuation</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="5.3" id="line-break-property"><span class="secno">5.3. </span><span class="content"> Line Breaking Strictness: the <a class="property css" data-link-type="property" href="#propdef-line-break" id="ref-for-propdef-line-break⑧">line-break</a> property</span><a class="self-link" href="#line-break-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has extensive test coverage for CJK.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>applies to text</p>
</li><li data-md="">
<p>affects intrinsic sizing</p>
</li></ul>
<p>Untestable(?):</p>
<ul>
<li data-md="">
<p>behavior of “auto”</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="5.4" id="hyphenation"><span class="secno">5.4. </span><span class="content"> Hyphenation: the <a class="property css" data-link-type="property" href="#propdef-hyphens" id="ref-for-propdef-hyphens①">hyphens</a> property</span><span id="hyphens-property"></span><a class="self-link" href="#hyphenation"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>No test of Animation type.</p>
</li><li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>“Automatic hyphenation opportunities within a word must be ignored if the word contains a conditional hyphen (shy or U+00AD), in favor of the conditional hyphen(s)”</p>
</li><li data-md="">
<p>“However, if, even after breaking at such opportunities, a portion of that word is still too long to fit on one line, an automatic hyphenation opportunity may be used.”</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="5.5" id="overflow-wrap-property"><span class="secno">5.5. </span><span class="content"> Overflow Wrapping: the <a class="property css" data-link-type="property" href="#propdef-overflow-wrap" id="ref-for-propdef-overflow-wrap⑥">overflow-wrap</a>/<a class="property css" data-link-type="property" href="#propdef-word-wrap" id="ref-for-propdef-word-wrap">word-wrap</a> property</span><span id="overflow-wrap"></span><a class="self-link" href="#overflow-wrap-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has fairly good test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>No test of Animation type</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="5.6" id="word-break-shaping"><span class="secno">5.6. </span><span class="content"> Shaping Across Intra-word Breaks</span><a class="self-link" href="#word-break-shaping"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has good test coverage.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="6" id="justification"><span class="secno">6. </span><span class="content"> Alignment and Justification</span><a class="self-link" href="#justification"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests only needed in subsections.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="6.1" id="text-align-property"><span class="secno">6.1. </span><span class="content"> Text Alignment: the <a class="property css" data-link-type="property" href="#propdef-text-align" id="ref-for-propdef-text-align">text-align</a> shorthand</span><span id="text-align"></span><a class="self-link" href="#text-align-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>If (after justification, if any) the inline contents of a line box are too long to fit within it, then the contents are start-aligned: any content that doesn’t fit overflows the line box’s end edge.</p>
</li><li data-md="">
<p>If the UA chooses to adjust the text, then it must ensure that tab stops continue to line up</p>
</li><li data-md="">
<p>“Values other than justify-all or match-parent are assigned to text-align-all and reset text-align-last to auto.”, and being a shorthand in general</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="6.2" id="text-align-all-property"><span class="secno">6.2. </span><span class="content"> Default Text Alignment: the <a class="property css" data-link-type="property" href="#propdef-text-align-all" id="ref-for-propdef-text-align-all④">text-align-all</a> property</span><span id="text-align-all"></span><a class="self-link" href="#text-align-all-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="6.3" id="text-align-last-property"><span class="secno">6.3. </span><span class="content"> Last Line Alignment: the <a class="property css" data-link-type="property" href="#propdef-text-align-last" id="ref-for-propdef-text-align-last⑥">text-align-last</a> property</span><span id="text-align-last"></span><a class="self-link" href="#text-align-last-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has fairly good test coverage:
all value combinations for text-align / text-align-last are exercised,
except for text-align-last: match-parent (which is exercised, but in a more limited way).
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>tests for Animation type</p>
</li></ul>
<p></p>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="6.4" id="text-justify-property"><span class="secno">6.4. </span><span class="content"> Justification Method: the <a class="property css" data-link-type="property" href="#propdef-text-justify" id="ref-for-propdef-text-justify③">text-justify</a> property</span><span id="text-justify"></span><a class="self-link" href="#text-justify-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has light test coverage.
All values (other than auto) are tested,
but the tests are minimal.
Not sure we can do better though.
</p><p>Missing text:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li></ul>
<p>Untestable(?):</p>
<ul>
<li data-md="">
<p>behavior of auto</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="6.4.1" id="expanding-text"><span class="secno">6.4.1. </span><span class="content"> Expanding and Compressing Text</span><a class="self-link" href="#expanding-text"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section lacks tests.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>whether a typographic character unit provides a justification opportunity is controlled by the text-justify value of its parent;</p>
</li><li data-md="">
<p>whether a justification opportunity exists between two consecutive typographic character units is determined by the text-justify value of their nearest common ancestor.</p>
</li><li data-md="">
<p>UAs must not break required ligatures or otherwise disable features required to correctly shape complex scripts</p>
</li><li data-md="">
<p>… and maybe more</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="6.4.2" id="justify-symbols"><span class="secno">6.4.2. </span><span class="content"> Handling Symbols and Punctuation</span><a class="self-link" href="#justify-symbols"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests. Not sure what is testable though.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="6.4.3" id="justify-limits"><span class="secno">6.4.3. </span><span class="content"> Unexpandable Text</span><a class="self-link" href="#justify-limits"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has basic test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>Values of text-align-last other than justify</p>
</li><li data-md="">
<p>A broader range of non-stretchable content that just an empty span with padding</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="6.4.4" id="justify-cursive"><span class="secno">6.4.4. </span><span class="content"> Cursive Scripts</span><a class="self-link" href="#justify-cursive"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks automated tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="6.4.5" id="justify-algos"><span class="secno">6.4.5. </span><span class="content"> Minimum Requirements for <a class="css" data-link-type="maybe" href="#valdef-text-justify-auto" id="ref-for-valdef-text-justify-auto">auto</a> Justification</span><a class="self-link" href="#justify-algos"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="7" id="spacing"><span class="secno">7. </span><span class="content"> Spacing</span><a class="self-link" href="#spacing"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests only needed in subsections.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="7.1" id="word-spacing-property"><span class="secno">7.1. </span><span class="content"> Word Spacing: the <a class="property css" data-link-type="property" href="#propdef-word-spacing" id="ref-for-propdef-word-spacing⑤">word-spacing</a> property</span><span id="word-spacing"></span><a class="self-link" href="#word-spacing-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has limited test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>inherit lengths as absolute</p>
</li><li data-md="">
<p>should be applied half on each side of the character unless otherwise dictated by typographic tradition.</p>
</li><li data-md="">
<p>doesn’t do anything between words defined by text analysis like in Thai, only on actual word separators</p>
</li><li data-md="">
<p>works on the Ethiopic word space (U+1361), the Aegean word separators (U+10100,U+10101), the Ugaritic word divider (U+1039F), and the Phoenician Word Separator (U+1091F).</p>
</li><li data-md="">
<p>word-spacing and bidi </p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="7.2" id="letter-spacing-property"><span class="secno">7.2. </span><span class="content"> Tracking: the <a class="property css" data-link-type="property" href="#propdef-letter-spacing" id="ref-for-propdef-letter-spacing⑤">letter-spacing</a> property</span><span id="letter-spacing"></span><a class="self-link" href="#letter-spacing-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>Due to <a href="https://github.com/w3c/csswg-drafts/issues/1518">issue 1518</a>, some/many tests in this section should be converted from MUST to SHOULD.</p>
</li><li data-md="">
<p>inherit lengths as absolute</p>
</li><li data-md="">
<p>For legacy reasons, a computed letter-spacing of zero yields a resolved value (getComputedStyle() return value) of normal.</p>
</li><li data-md="">
<p>However, ligatures and other font features specified via the low-level font-feature-settings property take precedence over this rule</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled" data-level="7.2.1" id="cursive-tracking"><span class="secno">7.2.1. </span><span class="content"> Cursive Scripts</span><a class="self-link" href="#cursive-tracking"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests. Not sure automated tests are possible.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="7.3" id="boundary-shaping"><span class="secno">7.3. </span><span class="content"> Shaping Across Element Boundaries</span><a class="self-link" href="#boundary-shaping"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has good test coverage.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="heading settled" data-level="8" id="edge-effects"><span class="secno">8. </span><span class="content"> Edge Effects</span><a class="self-link" href="#edge-effects"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests only needed in subsections.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled caniuse-paneled" data-level="8.1" id="text-indent-property"><span class="secno">8.1. </span><span class="content"> First Line Indentation: the <a class="property css" data-link-type="property" href="#propdef-text-indent" id="ref-for-propdef-text-indent①">text-indent</a> property</span><span id="text-indent"></span><a class="self-link" href="#text-indent-property"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section has adequate test coverage.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="8.2" id="hanging"><span class="secno">8.2. </span><span class="content"> Hanging Glyphs</span><a class="self-link" href="#hanging"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Test coverage TBD.
Partly tested through <a href="#hanging-punctuation-property">§ 8.2.1 Hanging Punctuation: the hanging-punctuation property</a> partly through <a href="#white-space-phase-2">§ 4.1.2 Phase II: Trimming and Positioning</a>.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h4 class="heading settled caniuse-paneled" data-level="8.2.1" id="hanging-punctuation-property"><span class="secno">8.2.1. </span><span class="content"> Hanging Punctuation: the <a class="property css" data-link-type="property" href="#propdef-hanging-punctuation" id="ref-for-propdef-hanging-punctuation②">hanging-punctuation</a> property</span><span id="hanging-punctuation"></span><a class="self-link" href="#hanging-punctuation-property"></a></h4>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has spotty test coverage.
All values have tests.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>No test of Animation type.</p>
</li><li data-md="">
<p>Applies to text</p>
</li><li data-md="">
<p>Affects intrinsic sizing</p>
</li><li data-md="">
<p>each value has a test, and checks with some characters, but there isn’t a test for every relevant unicode character</p>
</li><li data-md="">
<p>it is not considered when measuring the line’s contents for […] alignment</p>
</li><li data-md="">
<p>it is not considered when measuring the line’s contents for […] justification</p>
</li><li data-md="">
<p>Non-zero inline-axis borders or padding between a hangable mark and the edge of the line prevent the mark from hanging</p>
</li><li data-md="">
<p>At most one punctuation character may hang at each edge of the line.</p>
</li><li data-md="">
<p>should be treated as ink overflow</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h3 class="heading settled" data-level="8.3" id="bidi-linebox"><span class="secno">8.3. </span><span class="content"> Bidirectionality and Line Boxes</span><a class="self-link" href="#bidi-linebox"></a></h3>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section mostly lacks tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="order"><span class="content"> Appendix A:
Text Processing Order of Operations</span><a class="self-link" href="#order"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests probably not needed for this section, as it is exercised through the rest of the specification.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="plaintext"><span class="content"> Appendix B:
Conversion to Plaintext</span><a class="self-link" href="#plaintext"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="default-stylesheet"><span class="content"> Appendix C:
Default UA Stylesheet</span><a class="self-link" href="#default-stylesheet"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests not needed for this section.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="script-groups"><span class="content"> Appendix D:
Scripts and Spacing</span><a class="self-link" href="#script-groups"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>Tests not needed for this section:
these are definitions,
they get tested through their application,
not by themselves.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="character-properties"><span class="content"> Appendix E:
Characters and Properties</span><a class="self-link" href="#character-properties"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>This section lacks tests.</p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>
<h2 class="no-num heading settled" id="script-tagging"><span class="content"> Appendix F:
Identifying the Content Writing System</span><a class="self-link" href="#script-tagging"></a></h2>
<details class="wpt-tests-block" dir="ltr" lang="en" open="">
<summary>Tests</summary>
<p>
This section has partial test coverage.
Each of the various properties
that take the content language into account is tested,
except tested on text-justification:auto,
but probably not testable anyway.
</p><p>Missing tests:</p>
<ul>
<li data-md="">
<p>if the writing system to specified to be one of the Hant, Hans, Hani, Hanb, or Bopo ISO15924 codes, then the writing system is Chinese.</p>
</li><li data-md="">
<p>if the writing system to specified to be one of the Jpan, Hira ISO15924 codes, then the writing system is Japanese.</p>
</li><li data-md="">
<p>if the writing system to specified to be one of the Kore, Hang, or Jamo ISO15924 codes, then the writing system is Korean.</p>
</li></ul>
<p></p>
<ul class="wpt-tests-list"></ul>
<hr>
</details>