livewire-material/tests/Feature/Components/ToastTest.php

<?php

use NoNameWeb\LivewireMaterial\Tests\Support\ComponentStylesheet;

it('hosts the snackbar queue, kept across wire:navigate', function () {
    $html = (string) $this->blade('<x-toast />');

    expect($html)
        ->toContain('x-persist="material-toast"')
        ->toContain('x-data="materialSnackbar"')
        ->toContain('data-md-toast')
        ->toContain('data-md-position="bottom"')
        ->and(ComponentStylesheet::read('toast')->declarations('[data-md-toast-snackbar]'))->toMatchArray([
            'background-color' => 'var(--md-sys-color-inverse-surface)',
            'color' => 'var(--md-sys-color-inverse-on-surface)',
        ]);
});

it('draws no state icon, and reaches 48px from its 40px controls', function () {
    $html = (string) $this->blade('<x-toast />');
    $css = ComponentStylesheet::read('toast');

    // M3 tells you to avoid an icon in a snackbar; the type is left to pick the announcement role.
    expect(substr_count($html, '<svg'))->toBe(1)
        ->and($html)->not->toContain('text-inverse-success')
        ->toContain('data-md-toast-action')
        ->toContain('data-md-toast-dismiss')
        // 48px, from the foundation's md-touch-target class, not a copy of its own.
        ->toMatch('/class="md-state-layer md-focus-ring md-touch-target" data-md-toast-action/')
        ->toMatch('/class="md-state-layer md-focus-ring md-touch-target" data-md-toast-dismiss/')
        ->and($css->declarations(':is([data-md-toast-action], [data-md-toast-dismiss])'))
        ->toHaveKey('border-radius', 'var(--md-sys-shape-corner-full)')
        ->and($css->has(':is([data-md-toast-action], [data-md-toast-dismiss])::after'))->toBeFalse()
        ->and($css->declarations('[data-md-toast-dismiss]'))->toMatchArray([
            'width' => 'var(--md-sys-measurement-space500)',
            'height' => 'var(--md-sys-measurement-space500)',
        ]);
});

it('grows to M3\'s two-line height, and wraps the action below on a compact window', function () {
    $html = (string) $this->blade('<x-toast />');
    $css = ComponentStylesheet::read('toast');

    // SnackbarTokens: 48dp for one line, 68dp for two — a description is that second line.
    expect($html)
        ->toContain('x-bind:data-md-two-line="current.description ? \'\' : null"')
        ->toContain('x-bind:data-md-toast-wrap="current.description && current.action ? \'\' : null"')
        ->and($css->declarations('[data-md-toast-snackbar]'))->toHaveKey('min-height', 'var(--md-sys-measurement-space600)')
        ->and($css->declarations('[data-md-toast-snackbar][data-md-two-line]'))->toBe(['min-height' => '68px'])
        // The text grows from a zero basis, so a long title shrinks beside the action rather than
        // wrapping it onto a line of its own where there is room for both.
        ->and($css->declarations('[data-md-toast-content]'))->toHaveKey('flex', '1')
        ->and($css->declarations('[data-md-toast-content][data-md-toast-wrap]', ['@media (width < 600px)']))->toBe(['flex-basis' => '100%'])
        ->and($css->declarations('[data-md-toast-action]'))->toHaveKey('height', 'var(--md-sys-measurement-space500)');
});

it('can sit at the start, growing its margin from medium', function () {
    $css = ComponentStylesheet::read('toast');

    expect((string) $this->blade('<x-toast position="bottom-start" />'))->toContain('data-md-position="bottom-start"')
        ->and($css->declarations("[data-md-toast][data-md-position='bottom-start']"))->toBe(['justify-content' => 'flex-start'])
        ->and($css->declarations("[data-md-toast][data-md-position='bottom-start']", ['@media (width >= 600px)']))->toBe([
            'inset-inline-start' => 'var(--md-sys-measurement-space300)',
        ]);
});

it('falls back to bottom for an unknown position', function () {
    expect((string) $this->blade('<x-toast position="top" />'))->toContain('data-md-position="bottom"');
});

it('marks the snackbar and its action for tests and styling', function () {
    $html = (string) $this->blade('<x-toast />');

    expect($html)
        ->toMatch('/<div\s[^>]*\bdata-md-toast-snackbar\b/')
        ->toMatch('/<button\s[^>]*\bdata-md-toast-action\b[^>]*x-on:click="act\(\)"/')
        ->toMatch('/<button\s[^>]*\bdata-md-toast-dismiss\b[^>]*x-on:click="dismiss\(\)"/');
});

it('keeps the live region in the page, polite, around the snackbar that comes and goes', function () {
    $html = (string) $this->blade('<x-toast />');

    expect($html)
        ->toMatch('/<div\s[^>]*x-data="materialSnackbar"[^>]*aria-live="polite"/')
        ->toContain('aria-atomic="true"')
        ->toContain("x-bind:role=\"current && (current.type === 'error' || current.type === 'warning') ? 'alert' : 'status'\"")
        ->and(substr_count($html, 'aria-live'))->toBe(1);
});

it('lifts above a bottom bar or a toolbar placed at the bottom, publishing its own height for a FAB to clear', function () {
    // Whichever reaches higher: M3 nudges a snackbar clear of a docked toolbar and never puts one
    // in front of navigation (toolbar.css publishes --material-bottom-toolbar).
    expect(ComponentStylesheet::read('toast')->declarations('[data-md-toast]'))->toMatchArray([
        'bottom' => 'calc(max(var(--material-bottom-bar, 0px), var(--material-bottom-toolbar, 0px)) + var(--md-sys-measurement-space200))',
    ]);
});