*/ public array $files = []; public string $audience = 'anyone'; public bool $public = false; public string $message = ''; public function save(): void { $this->validate(['name' => 'required']); } public function render(): string { return <<<'BLADE'

name: {{ $name }}

hours: {{ $hours }}

files: {{ implode(',', $files) }}

audience: {{ $audience }}

public: {{ var_export($public, true) }}

@foreach (['a', 'b', 'c'] as $file) @endforeach

BLADE; } } function fieldProbe() { Livewire::component('field-probe', FieldProbe::class); Route::middleware('web')->get('/field-probe', fn () => Blade::render(<<<'BLADE'

@vite(config('livewire-material.showcase.vite')) @livewireStyles

@livewireScripts BLADE)); return ready(visit('/field-probe')); } it('floats the label while the field has focus or holds a value', function () { $label = "getComputedStyle(document.querySelector('label[for=\"name-field\"]')).fontSize"; $page = fieldProbe()->assertScript("{$label} === '16px'"); $page->click('#name-field')->assertScript("{$label} === '12px'"); $page->type('#name-field', 'Holiday') ->assertSeeIn('#name', 'Holiday'); $page->click('#password-field')->assertScript("{$label} === '12px'"); }); it('clears a field and tells Livewire', function () { fieldProbe() ->type('#name-field', 'Holiday') ->assertSeeIn('#name', 'Holiday') ->click('[data-md-field-clear]') ->assertScript("document.querySelector('#name-field').value === ''") ->assertScript("document.querySelector('#name').textContent === ''") ->assertScript("document.activeElement.id === 'name-field'"); }); it('copies a field\'s value and says so', function () { $page = fieldProbe()->type('#name-field', 'Holiday'); $page->script("window.eval(\"Object.defineProperty(navigator, 'clipboard', { configurable: true, value: { writeText: async (text) => { window.copied = text } } })\")"); $page->click('[data-md-field-copy]') ->assertScript("window.copied === 'Holiday'") ->assertSee('Copied to the clipboard'); }); it('shows and hides a password', function () { fieldProbe() ->type('#password-field', 'secret') ->click('[data-md-field-reveal]') ->assertScript("document.querySelector('#password-field').type === 'text'") ->assertAttribute('[data-md-field-reveal]', 'aria-label', 'Hide password') ->click('[data-md-field-reveal]') ->assertScript("document.querySelector('#password-field').type === 'password'"); }); it('shows the server\'s error in place of the hint', function () { fieldProbe() ->click('button:has-text("Save")') ->assertSee('The name field is required.') ->assertAttribute('#name-field', 'aria-invalid', 'true') ->assertScript("document.querySelector('#name-field').closest('[data-md-field]').hasAttribute('data-md-invalid')"); }); it('binds a select to Livewire', function () { fieldProbe() ->select('#hours-field', '1') ->assertSeeIn('#hours', '1'); }); it('opens the customizable select picker as M3\'s menu, where the browser supports it', function () { $select = "document.querySelector('#hours-field')"; $option = "{$select}.querySelector('option')"; $page = fieldProbe(); // menu.css only styles the picker inside @supports (appearance: base-select). A browser without // it (Firefox) keeps its own native picker, which is the fallback, and there is no M3 menu to open. if ($page->script("CSS.supports('appearance', 'base-select')") !== true) { $page->assertScript("getComputedStyle({$select}).appearance !== 'base-select'"); return; } $page->assertScript("getComputedStyle({$select}).appearance === 'base-select'"); $page->click('#hours-field') ->assertScript("{$select}.matches(':open')") // M3's menu row height (menu-item.css's 48px), not the browser's own tiny option row. ->assertScript("parseFloat(getComputedStyle({$option}).minBlockSize) === 48"); }); class SelectValueProbe extends Component { public string $format = 'dots'; public function render(): string { return <<<'BLADE'

format: {{ $format }}

@php($formats = [['id' => 'dots', 'name' => 'Day first, dots — 17.08.2026'], ['id' => 'slashes', 'name' => 'Month first, slashes — 08/17/2026']])

BLADE; } } /** * Where a select's value ends against its arrow, and how it is cut: `[ends before the arrow, * text-overflow, white-space, overflow, the value's text]`. The customizable select draws the value * in its ``; the native one in the select's own box, less its end padding. */ function selectValue(string $id): string { return "(() => { const select = document.getElementById('{$id}'); const arrow = select.closest('[data-md-field]').querySelector('[data-md-field-arrow]').getBoundingClientRect(); const value = CSS.supports('appearance', 'base-select') ? select.querySelector('selectedcontent') : select; if (! value) { return 'nothing draws the value'; } const style = getComputedStyle(value); const end = value.getBoundingClientRect().right - parseFloat(style.paddingRight) - parseFloat(style.borderRightWidth); return [end <= arrow.left, style.textOverflow, style.whiteSpace, style.overflowX, (value === select ? select.selectedOptions[0] : value).textContent.trim()]; })()"; } it('ends a select\'s value before its arrow with an ellipsis, at every size and after a render', function () { Livewire::component('select-value-probe', SelectValueProbe::class); Route::middleware('web')->get('/select-value-probe', fn () => Blade::render(<<<'BLADE'

@vite(config('livewire-material.showcase.vite')) @livewireStyles @livewireScripts BLADE)); $page = ready(visit('/select-value-probe')); foreach (['format-md', 'format-sm', 'format-xs', 'format-filled', 'format-icon'] as $id) { expect($page->script(selectValue($id)))->toBe([true, 'ellipsis', 'nowrap', 'hidden', 'Day first, dots — 17.08.2026']); } // The customizable select copies the chosen option into its , which a // Livewire render must not empty again. $page->select('#format-md', 'slashes')->assertSeeIn('#format', 'slashes'); expect($page->script(selectValue('format-md')))->toBe([true, 'ellipsis', 'nowrap', 'hidden', 'Month first, slashes — 08/17/2026']); }); it('keeps a partly ticked checkbox in step with the server', function () { $all = "document.querySelector('#all')"; $page = fieldProbe()->assertScript("! {$all}.indeterminate"); $page->click('label[for="file-a"]') ->assertSeeIn('#files', 'a') ->assertScript("{$all}.hasAttribute('data-md-indeterminate') && {$all}.indeterminate"); $page->click('label[for="file-b"]') ->click('label[for="file-c"]') ->assertSeeIn('#files', 'a,b,c') ->assertScript("! {$all}.hasAttribute('data-md-indeterminate') && ! {$all}.indeterminate"); }); it('moves between radio buttons with the arrow keys', function () { fieldProbe() ->keys('input[type="radio"][value="anyone"]', 'ArrowDown') ->assertSeeIn('#audience', 'team') ->assertScript("document.querySelector('input[type=\"radio\"][value=\"team\"]').checked"); }); it('turns a switch on from the keyboard and from its label', function () { $page = fieldProbe() ->keys('#public', 'Space') ->assertSeeIn('#public-state', 'true'); $page->click('label[for="public"]') ->assertSeeIn('#public-state', 'false') ->assertAttribute('#public', 'role', 'switch'); }); it('grows a textarea with its text up to its maximum', function () { $height = "document.querySelector('#message').getBoundingClientRect().height"; $page = fieldProbe(); $rows = $page->script("({$height})"); $page->type('#message', "one\ntwo\nthree") ->assertScript("({$height}) > {$rows}"); $three = $page->script("({$height})"); $page->type('#message', "one\ntwo\nthree\nfour\nfive\nsix\nseven") ->assertScript("Math.abs(({$height}) - ({$three} + 24)) < 2") ->assertScript("document.querySelector('#message').scrollHeight > document.querySelector('#message').clientHeight"); }); it('pairs the server\'s error with a trailing error icon in the error colour', function () { $icon = "document.querySelector('[data-md-field]:has(#plain-name-field) [data-md-field-error]')"; fieldProbe() ->assertScript("{$icon} === null") ->click('button:has-text("Save")') ->assertSee('The name field is required.') // A field that trails with buttons of its own gives the icon's place to them. ->assertScript("document.querySelector('[data-md-field]:has(#name-field)').hasAttribute('data-md-invalid') && document.querySelector('[data-md-field]:has(#name-field) [data-md-field-error]') === null") ->assertScript("{$icon}.getAttribute('aria-label') === 'Error' && {$icon}.getAttribute('role') === 'img'") ->assertScript("{$icon}.getBoundingClientRect().width === 24") ->assertScript("getComputedStyle({$icon}).color === getComputedStyle(document.querySelector('[data-md-field]:has(#plain-name-field) [data-md-field-support]')).color"); }); it('lights an enabled field\'s outline on hover, and never a disabled one\'s', function () { $edge = fn (string $id): string => "getComputedStyle(document.querySelector('[data-md-field]:has(#{$id}) [data-md-field-outline]')).borderTopColor"; $page = fieldProbe(); $resting = $page->script("({$edge('name-field')})"); $disabled = $page->script("({$edge('off-field')})"); $page->hover('[data-md-field]:has(#name-field) [data-md-field-box]') ->assertScript("({$edge('name-field')}) !== '{$resting}'"); $page->hover('[data-md-field]:has(#off-field) [data-md-field-box]') ->assertScript("({$edge('off-field')}) === '{$disabled}'") // The disabled edge is on-surface at 12%, which is translucent. ->assertScript("/rgba?\$.*,\\s*0?\\.\\d+\$|color\$srgb .* \\/ 0?\\.\\d+\$/.test('{$disabled}')"); }); /** * An outlined, a filled and an invalid field and a select, beside the three roles their edges take, * with nothing that moves them after the first paint. */ function fieldStateProbe(): mixed { Route::middleware('web')->get('/field-state-probe', function () { view()->share('errors', (new ViewErrorBag)->put('default', new MessageBag(['broken' => ['Say what it is.'], 'broken-choice' => ['Choose one.']]))); return Blade::render(<<<'BLADE'

@vite(config('livewire-material.showcase.vite')) @livewireStyles

primary

on-surface

error

@livewireScripts BLADE); }); return ready(visit('/field-state-probe'), livewire: false); } /** A field's edge, "width colour", once its colour transition has run: `Top` outlined, `Bottom` filled. */ function settledEdge(string $id, string $side = 'Top'): string { return "(async () => { const outline = document.querySelector('[data-md-field]:has(#{$id}) [data-md-field-outline]'); await Promise.allSettled(outline.getAnimations().map((animation) => animation.finished)); const style = getComputedStyle(outline); return style.border{$side}Width + ' ' + style.border{$side}Color })()"; } it('keeps a focused field\'s focus edge under the pointer, as M3 layers focus over hover', function () { $page = fieldStateProbe(); $role = fn (string $id): string => $page->script("getComputedStyle(document.getElementById('{$id}')).color"); // Hovered alone, the edge still answers the pointer. $page->hover('[data-md-field]:has(#outlined-field) [data-md-field-box]'); expect($page->script(settledEdge('outlined-field')))->toBe('1px '.$role('on-surface')); // A click focuses the field and leaves the pointer over it. $page->click('#outlined-field'); expect($page->script(settledEdge('outlined-field')))->toBe('2px '.$role('primary')); $page->click('#filled-field'); expect($page->script(settledEdge('filled-field', 'Bottom')))->toBe('2px '.$role('primary')); $page->click('#invalid-field'); expect($page->script(settledEdge('invalid-field')))->toBe('2px '.$role('error')); // A customizable select reads as focused while its menu is open, though focus is then on an // option in the top layer: in primary under the pointer, and in error when the field is. if ($page->script("CSS.supports('appearance', 'base-select')") === true) { $page->click('#select-field')->assertScript("document.getElementById('select-field').matches(':open')"); expect($page->script(settledEdge('select-field')))->toBe('2px '.$role('primary')); $page->keys('#select-field', 'Escape')->assertScript("! document.getElementById('select-field').matches(':open')"); $page->click('#invalid-select-field')->assertScript("document.getElementById('invalid-select-field').matches(':open')"); expect($page->script(settledEdge('invalid-select-field')))->toBe('2px '.$role('error')); } }); it('counts the characters as they are typed, marks a count past the maximum and says it once typing stops', function () { $counter = "document.querySelector('[data-md-field]:has(#bio-field) [data-md-field-counter]')"; $page = fieldProbe() ->assertScript("{$counter}.querySelector('[aria-hidden]').textContent === '0/10'") ->type('#bio-field', 'Hello') ->assertScript("{$counter}.querySelector('[aria-hidden]').textContent === '5/10'") ->assertScript("! {$counter}.hasAttribute('data-md-over')"); $within = $page->script("getComputedStyle({$counter}).color"); // maxlength stops typing at the maximum, but a value put in from elsewhere can pass it. $page->script("(() => { const input = document.querySelector('#bio-field'); input.value = 'Hello there!'; input.dispatchEvent(new Event('input', { bubbles: true })); })()"); $page->assertScript("{$counter}.querySelector('[aria-hidden]').textContent === '12/10'") ->assertScript("{$counter}.hasAttribute('data-md-over')") ->assertScript("getComputedStyle({$counter}).color !== '{$within}'") ->assertScript("{$counter}.querySelector('[aria-live]').textContent === ''") ->wait(1.3) ->assertScript("{$counter}.querySelector('[aria-live=\\'polite\\']').textContent === 'Character count, 12/10'"); }); function fieldWidthProbe(int $width) { Route::middleware('web')->get('/field-width-probe', fn () => Blade::render(<<<'BLADE'

@vite(config('livewire-material.showcase.vite'))

BLADE)); return visit('/field-width-probe')->resize($width, 800)->waitForEvent('networkidle'); } it('bounds a field to 40rem from 600px, unless the caller\'s width rule or full says otherwise', function () { $width = fn (string $id): string => "document.querySelector('[data-md-field]:has(#{$id})').getBoundingClientRect().width"; fieldWidthProbe(599) ->assertScript("({$width('bounded')}) === 1400") ->assertScript("({$width('narrow')}) === 200") ->assertScript("({$width('full')}) === 1400"); $page = fieldWidthProbe(600) ->assertScript("({$width('bounded')}) === 640") ->assertScript("({$width('narrow')}) === 200") ->assertScript("({$width('full')}) === 1400"); // The fields the searchable choice and the pickers draw take `full` as the others do. foreach (['choices', 'date', 'time'] as $field) { expect($page->script($width("{$field}-bounded")))->toBe(640) ->and($page->script($width("{$field}-full")))->toBe(1400); } }); it('draws the field at M3\'s geometry and the file picker\'s button as a tonal pill', function () { $box = fn (string $id): string => "document.querySelector('[data-md-field]:has(#{$id}) [data-md-field-box]').getBoundingClientRect()"; fieldProbe() ->assertScript("({$box('name-field')}).height === 56") // The control starts after the box's 16px padding. ->assertScript("document.querySelector('#name-field').getBoundingClientRect().left - ({$box('name-field')}).left === 16") ->assertScript("getComputedStyle(document.querySelector('#upload-field'), '::file-selector-button').height === '32px'") ->assertScript("getComputedStyle(document.querySelector('#upload-field'), '::file-selector-button').borderTopLeftRadius !== '0px'") ->assertScript("getComputedStyle(document.querySelector('#upload-field')).color === 'rgba(0, 0, 0, 0)'"); }); it('lets a selection control without a label be pressed at the edge of its 48px target', function () { // A press 22px from the centre, past the drawn box but inside M3's 48px, lands on the control. $pressAtEdge = fn (string $input, string $dx, string $dy): string => "(() => { const input = document.querySelector('{$input}'); input.scrollIntoView({ block: 'center' }); const box = input.parentElement.getBoundingClientRect(); const target = document.elementFromPoint(box.left + box.width / 2 + {$dx}, box.top + box.height / 2 + {$dy}); target.click(); return input.checked; })()"; fieldProbe() ->assertScript($pressAtEdge('#bare-check', '22', '0')) ->assertScript($pressAtEdge('#bare-switch', '0', '22')) ->assertScript($pressAtEdge('input[name=\"bare-radio\"]', '0', '-22')); }); it('draws the switch\'s handle at SwitchTokens\' sizes and centres, off and on', function () { $handle = "(() => { const track = document.querySelector('[data-md-switch]:has(#public)').getBoundingClientRect(); const handle = document.querySelector('[data-md-switch]:has(#public) [data-md-switch-handle]').getBoundingClientRect(); return [track.width, track.height, handle.width, Math.round(handle.left + handle.width / 2 - track.left), Math.round(handle.top + handle.height / 2 - track.top)].join(); })()"; $page = fieldProbe()->assertScript("{$handle} === '52,32,16,16,16'"); $page->keys('#public', 'Space') ->assertSeeIn('#public-state', 'true') ->wait(0.7) ->assertScript("{$handle} === '52,32,24,36,16'"); }); it('keeps a switch\'s track and a checkbox\'s box whole beside long text in a row, wrapping the text instead', function () { Route::middleware('web')->get('/selection-row-probe', fn () => Blade::render(<<<'BLADE'

@vite(config('livewire-material.showcase.vite'))

Drop the mark

Takes effect on the next sync: your calendar is rewritten with the new names, and a watch keeps the first characters of each.

BLADE)); // [the control's drawn width, its end inside its row, the root's end inside its row]. $control = fn (string $input, string $drawing, string $root): string => "(() => { const drawing = document.getElementById('{$input}').closest('{$drawing}').getBoundingClientRect(); const root = document.getElementById('{$input}').closest('{$root}').getBoundingClientRect(); const row = document.getElementById('{$input}').closest('[data-md-row]').getBoundingClientRect(); return [Math.round(drawing.width), drawing.right <= row.right + 0.5, root.right <= row.right + 0.5]; })()"; // A phone's window: the row is 329px across, less than the text beside each control would take. $page = ready(visit('/selection-row-probe')->resize(393, 800), alpine: false, livewire: false); expect($page->script($control('row-bare-switch', '[data-md-switch]', '[data-md-toggle]')))->toBe([52, true, true]) ->and($page->script($control('row-labelled-switch', '[data-md-switch]', '[data-md-toggle]')))->toBe([52, true, true]) ->and($page->script($control('row-bare-check', '[data-md-checkbox-box]', '[data-md-checkbox]')))->toBe([18, true, true]) // The switch's own label wraps inside the switch's root rather than running past it. ->and($page->script("(() => { const label = document.querySelector('[data-md-toggle]:has(#row-labelled-switch) [data-md-selection-label]').getBoundingClientRect(); const root = document.querySelector('[data-md-toggle]:has(#row-labelled-switch)').getBoundingClientRect(); return label.right <= root.right + 0.5 && label.height > 24; })()"))->toBeTrue(); });