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Merged
bartveneman merged 2 commits into from
Oct 20, 2025
Merged

upgrade coverage to 0.5.0 #37

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78118b5
upgrade coverage to 0.5.0
bartveneman Oct 20, 2025
0f6deac
fix types
bartveneman Oct 20, 2025
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8 changes: 4 additions & 4 deletions package-lock.json
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@
"@melt-ui/svelte": "^0.86.6",
"@oddbird/popover-polyfill": "^0.6.1",
"@projectwallace/css-analyzer": "^7.6.0",
"@projectwallace/css-code-coverage": "^0.4.1",
"@projectwallace/css-code-coverage": "^0.5.0",
"@projectwallace/css-code-quality": "^3.0.2",
"@projectwallace/css-design-tokens": "^0.6.0",
"@projectwallace/css-layer-tree": "^2.0.0",
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205 changes: 108 additions & 97 deletions src/lib/components/coverage/Coverage.svelte
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
import Panel from '$components/Panel.svelte'
import Meter from '$components/Meter.svelte'
import Pre from '$components/Pre.svelte'
import { calculate_coverage, type Coverage } from '@projectwallace/css-code-coverage'
import { calculate_coverage, type Coverage, type CoverageResult } from '@projectwallace/css-code-coverage'
import Empty from '$components/Empty.svelte'
import Table from '$components/Table.svelte'
import { string_sort } from '$lib/string-sort'
Expand All @@ -21,15 +21,15 @@
elements: { root, item }
} = create_keyboard_list()
let selected_index = $state(0)
let calculated: CoverageResult | undefined = $state(undefined)

function parse_html(html: string) {
let parser = new DOMParser()
return parser.parseFromString(html, 'text/html')
}

let calculated = $derived(calculate_coverage(browser_coverage, parse_html))
// @ts-expect-error This is very unconventional, maybe fix later with async svelte support
$effect(async () => {
calculated = await calculate_coverage(browser_coverage)
})

let max_lines = $derived.by(() => {
if (!calculated) return 0
let max = 0
for (let sheet of calculated.coverage_per_stylesheet) {
if (sheet.total_lines > max) {
Expand All @@ -43,17 +43,23 @@
selected_index = active_index
}

let sort_by = $state<'bytes' | 'coverage' | 'name' | 'lines' | undefined>(undefined)
type SortBy = 'bytes' | 'coverage' | 'name' | 'lines'

let sort_by = $state<SortBy | undefined>(undefined)
let sort_direction = $state<'asc' | 'desc'>('asc')

let sorted_items = $derived.by(() => {
if (!calculated) return new Uint8Array()

let item_indexes = Uint8Array.from({ length: calculated.coverage_per_stylesheet.length }, (_, i) => i)

if (sort_by === undefined) {
return item_indexes
}

return item_indexes.sort((_a, _b) => {
let a = calculated.coverage_per_stylesheet[_a]
let b = calculated.coverage_per_stylesheet[_b]
let a = calculated!.coverage_per_stylesheet[_a]
let b = calculated!.coverage_per_stylesheet[_b]

if (sort_by === 'bytes') {
return sort_direction === 'asc' ? a.total_bytes - b.total_bytes : b.total_bytes - a.total_bytes
Expand Down Expand Up @@ -85,8 +91,8 @@
})
</script>

{#snippet sorted_th(name: 'bytes' | 'coverage' | 'name' | 'lines', label: string)}
{@const sort_by_attr = sort_by === name ? (sort_direction === 'asc' ? 'ascending' : 'descending') : undefined}
{#snippet sorted_th(sort: SortBy | undefined, name: SortBy, label: string)}
{@const sort_by_attr = sort === name ? (sort_direction === 'asc' ? 'ascending' : 'descending') : undefined}
<th scope="col" aria-sort={sort_by_attr}>
<button
class="sort-button"
Expand All @@ -98,99 +104,104 @@
>
{label}
<span class="sort-indicator" aria-hidden="true">
{#if sort_by === name}
{#if sort === name}
{sort_direction === 'asc' ? '▲' : '▼'}
{/if}
</span>
</button>
</th>
{/snippet}

<header data-testid="coverage-summary">
<Panel element="dl" aria-label="Coverage summary">
<div class="coverage-summary">
<div>
<dt>Coverage</dt>
<dd>{format_percentage(calculated.byte_coverage_ratio)}</dd>
<dd>{format_percentage(calculated.line_coverage_ratio)} of lines</dd>
</div>
<div>
<dt>Total</dt>
<dd>{format_filesize(calculated.total_bytes)}</dd>
<dd>{format_number(calculated.total_lines)} lines</dd>
</div>
<div>
<dt>Used</dt>
<dd>{format_filesize(calculated.used_bytes)}</dd>
<dd>{format_number(calculated.covered_lines)} lines</dd>
</div>
<div>
<dt>Unused</dt>
<dd>{format_filesize(calculated.unused_bytes)}</dd>
<dd>{format_number(calculated.uncovered_lines)} lines</dd>
</div>
</div>
</Panel>
</header>

<h2 class="sr-only">Coverage per stylesheet</h2>
<div class="devtools" data-empty={calculated.coverage_per_stylesheet.length === 0 ? 'true' : 'false'}>
{#if calculated.coverage_per_stylesheet.length > 0}
<PaneGroup direction="horizontal" autoSaveId="css-coverage">
<Pane defaultSize={50} minSize={20}>
<Table>
<caption class="sr-only">Coverage per origin</caption>
<thead>
<tr>
{@render sorted_th('name', 'URL')}
{@render sorted_th('bytes', 'Total size')}
{@render sorted_th('lines', 'Lines')}
{@render sorted_th('coverage', 'Coverage')}
<th scope="col">Coverage visualized</th>
</tr>
</thead>
{#key browser_coverage && sort_by && sort_direction}
<tbody use:root={{ onchange }} style:--meter-height="0.5rem">
{#each sorted_items as item_index, index}
{@const stylesheet = calculated.coverage_per_stylesheet[item_index]}
{@const { url, total_bytes, total_lines, line_coverage_ratio } = stylesheet}
<tr use:item={{ value: index.toString() }} aria-selected={selected_index === index ? 'true' : 'false'}>
<td class="url">
{url}
</td>
<td class="numeric">{format_filesize(total_bytes)}</td>
<td class="numeric">{format_number(total_lines)}</td>
<td class="numeric">{format_percentage(line_coverage_ratio)}</td>
<td>
<div style:width={(stylesheet.total_lines / max_lines) * 100 + '%'}>
<Meter max={1} value={line_coverage_ratio} />
</div>
</td>
</tr>
{/each}
</tbody>
{/key}
</Table>
</Pane>
<PaneResizer>
<div class="pane-resizer"></div>
</PaneResizer>
<Pane defaultSize={50} minSize={20}>
<div class="css-slide">
{#if selected_index !== -1}
{@const coverage = calculated.coverage_per_stylesheet.at(mapped_selected_index)!}
<Pre line_numbers coverage_chunks={coverage.chunks} css={coverage.text} />
{/if}
{#if calculated}
<header data-testid="coverage-summary">
<Panel element="dl" aria-label="Coverage summary">
<div class="coverage-summary">
<div>
<dt>Coverage</dt>
<dd>{format_percentage(calculated.byte_coverage_ratio)}</dd>
<dd>{format_percentage(calculated.line_coverage_ratio)} of lines</dd>
</div>
<div>
<dt>Total</dt>
<dd>{format_filesize(calculated.total_bytes)}</dd>
<dd>{format_number(calculated.total_lines)} lines</dd>
</div>
</Pane>
</PaneGroup>
{:else}
<Empty>
Analyzed {calculated.total_files_found}
{calculated.total_files_found > 1 ? 'entries' : 'entry'} but no CSS coverage found.
</Empty>
{/if}
</div>
<div>
<dt>Used</dt>
<dd>{format_filesize(calculated.used_bytes)}</dd>
<dd>{format_number(calculated.covered_lines)} lines</dd>
</div>
<div>
<dt>Unused</dt>
<dd>{format_filesize(calculated.unused_bytes)}</dd>
<dd>{format_number(calculated.uncovered_lines)} lines</dd>
</div>
</div>
</Panel>
</header>

<h2 class="sr-only">Coverage per stylesheet</h2>
<div class="devtools" data-empty={calculated.coverage_per_stylesheet.length === 0 ? 'true' : 'false'}>
{#if calculated.coverage_per_stylesheet.length > 0}
<PaneGroup direction="horizontal" autoSaveId="css-coverage">
<Pane defaultSize={50} minSize={20}>
<Table>
<caption class="sr-only">Coverage per origin</caption>
<thead>
<tr>
{@render sorted_th(sort_by, 'name', 'URL')}
{@render sorted_th(sort_by, 'bytes', 'Total size')}
{@render sorted_th(sort_by, 'lines', 'Lines')}
{@render sorted_th(sort_by, 'coverage', 'Coverage')}
<th scope="col">Coverage visualized</th>
</tr>
</thead>
{#key browser_coverage && sort_by && sort_direction}
<tbody use:root={{ onchange }} style:--meter-height="0.5rem">
{#each sorted_items as item_index, index}
{@const stylesheet = calculated.coverage_per_stylesheet[item_index]}
{@const { url, total_bytes, total_lines, line_coverage_ratio } = stylesheet}
<tr
use:item={{ value: index.toString() }}
aria-selected={selected_index === index ? 'true' : 'false'}
>
<td class="url">
{url}
</td>
<td class="numeric">{format_filesize(total_bytes)}</td>
<td class="numeric">{format_number(total_lines)}</td>
<td class="numeric">{format_percentage(line_coverage_ratio)}</td>
<td>
<div style:width={(stylesheet.total_lines / max_lines) * 100 + '%'}>
<Meter max={1} value={line_coverage_ratio} />
</div>
</td>
</tr>
{/each}
</tbody>
{/key}
</Table>
</Pane>
<PaneResizer>
<div class="pane-resizer"></div>
</PaneResizer>
<Pane defaultSize={50} minSize={20}>
<div class="css-slide">
{#if selected_index !== -1}
{@const coverage = calculated.coverage_per_stylesheet.at(mapped_selected_index)!}
<Pre line_numbers coverage_chunks={coverage.chunks} css={coverage.text} />
{/if}
</div>
</Pane>
</PaneGroup>
{:else}
<Empty>
Analyzed {calculated.total_files_found}
{calculated.total_files_found > 1 ? 'entries' : 'entry'} but no CSS coverage found.
</Empty>
{/if}
</div>
{/if}

<style>
:global {
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