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import {
defineVisualRegions,
reportVisualStability,
startVisualProbe,
stopVisualProbe,
visualPlan,
} from "../../utils/visual-stability"
import {
assistantMessage,
partUpdated,
setupTimeline,
shell,
textPart,
userMessage,
waitForVisualSettle,
} from "./fixture"
const profiles = [
{
name: "empty running to completed",
updates: [{ state: "completed" as const, output: "", delay: 350 }],
},
{
name: "50 lines arriving incrementally",
updates: [
{ state: "running" as const, output: lines(1), delay: 100 },
{ state: "running" as const, output: lines(10), delay: 160 },
{ state: "running" as const, output: lines(25), delay: 90 },
{ state: "running" as const, output: lines(50), delay: 220 },
{ state: "completed" as const, output: lines(50), delay: 500 },
],
},
{
name: "wide ANSI and CRLF output",
updates: [
{
state: "running" as const,
output: Array.from({ length: 20 }, (_, index) => `\u001b[32mline ${index}\u001b[0m ${"wide-".repeat(30)}`).join(
"\r\n",
),
delay: 240,
},
{
state: "completed" as const,
output: Array.from({ length: 20 }, (_, index) => `line ${index} ${"wide-".repeat(30)}`).join("\n"),
delay: 500,
},
],
},
] as const
for (const profile of profiles) {
test(`keeps rows stable for shell ${profile.name}`, async ({ page }, testInfo) => {
const shellID = `prt_matrix_${profiles.indexOf(profile)}_01_shell`
const followingID = `prt_matrix_${profiles.indexOf(profile)}_02_following`
const timeline = await setupTimeline(page, {
messages: [
userMessage(),
assistantMessage([shell(shellID, "running"), textPart(followingID, "Following shell row")], {
completed: false,
}),
],
settings: { shellToolPartsExpanded: true },
cpuRate: 4,
seedHistory: true,
})
const scroller = page.locator(".scroll-view__viewport", { has: page.locator("[data-timeline-row]") })
await scroller.evaluate((element) => (element.scrollTop = element.scrollHeight))
await waitForVisualSettle(page, [
`[data-timeline-part-id="${shellID}"]`,
`[data-timeline-part-id="${followingID}"]`,
])
const regions = defineVisualRegions({
shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
following: {
selector: `[data-timeline-part-id="${followingID}"]`,
closest: '[data-timeline-row="AssistantPart"]',
},
})
await startVisualProbe(page, regions)
for (const update of profile.updates) {
await timeline.send(partUpdated(shell(shellID, update.state, update.output)), update.delay)
}
const trace = await stopVisualProbe<keyof typeof regions>(page)
await reportVisualStability(
testInfo,
`shell-${profiles.indexOf(profile)}`,
trace,
visualPlan(
regions,
[
{ type: "required", regions: ["shell", "following"] },
{ type: "unique", regions: ["shell", "following"] },
{ type: "stable", regions: ["shell", "following"] },
{ type: "opacity", regions: "all" },
{ type: "continuity", regions: "all" },
{ type: "motion", regions: "all", maxPositionReversals: 0, maxReversals: 1 },
{ type: "label-stability", regions: "all" },
{ type: "preserve-bottom-anchor" },
{ type: "flow", regions: ["shell", "following"] },
],
{ perMarker: true },
),
)
})
}
test("keeps following row stable when a collapsed shell receives 50 lines", async ({ page }, testInfo) => {
const shellID = "prt_matrix_collapsed_01_shell"
const followingID = "prt_matrix_collapsed_02_following"
const timeline = await setupTimeline(page, {
messages: [
userMessage(),
assistantMessage([shell(shellID, "running"), textPart(followingID, "Following collapsed shell")], {
completed: false,
}),
],
settings: { shellToolPartsExpanded: false },
cpuRate: 4,
seedHistory: true,
})
await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`, `[data-timeline-part-id="${followingID}"]`])
const regions = defineVisualRegions({
shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
})
await startVisualProbe(page, regions)
await timeline.send(partUpdated(shell(shellID, "running", lines(50))), 240)
await timeline.send(partUpdated(shell(shellID, "completed", lines(50))), 500)
const trace = await stopVisualProbe<keyof typeof regions>(page)
await reportVisualStability(
testInfo,
"collapsed-shell",
trace,
visualPlan(
regions,
[
{ type: "required", regions: ["shell", "following"] },
{ type: "unique", regions: ["shell", "following"] },
{ type: "stable", regions: ["shell", "following"] },
{ type: "opacity", regions: "all" },
{ type: "continuity", regions: "all" },
{ type: "motion", regions: ["following"], maxPositionReversals: 0 },
{ type: "label-stability", regions: "all" },
{ type: "flow", regions: ["shell", "following"] },
],
{ perMarker: true },
),
)
})
test("keeps rows stable when a running shell becomes an error", async ({ page }, testInfo) => {
const shellID = "prt_matrix_error_01_shell"
const followingID = "prt_matrix_error_02_following"
const timeline = await setupTimeline(page, {
messages: [
userMessage(),
assistantMessage([shell(shellID, "running", lines(10)), textPart(followingID, "Following failed shell")], {
completed: false,
}),
],
settings: { shellToolPartsExpanded: true },
cpuRate: 4,
seedHistory: true,
})
await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`, `[data-timeline-part-id="${followingID}"]`])
const regions = defineVisualRegions({
shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
following: { selector: `[data-timeline-part-id="${followingID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
})
await startVisualProbe(page, regions)
await timeline.send(
partUpdated({
...shell(shellID, "error"),
state: {
status: "error",
input: { command: `echo ${shellID}` },
error: "Command failed after output",
metadata: {},
time: { start: 1700000001000, end: 1700000002000 },
},
}),
500,
)
const trace = await stopVisualProbe<keyof typeof regions>(page)
await reportVisualStability(
testInfo,
"shell-error",
trace,
visualPlan(
regions,
[
{ type: "required", regions: ["shell", "following"] },
{ type: "unique", regions: ["shell", "following"] },
{ type: "stable", regions: ["shell", "following"] },
{ type: "opacity", regions: "all" },
{ type: "continuity", regions: "all" },
{ type: "motion", regions: ["following"], maxPositionReversals: 0 },
{ type: "label-stability", regions: "all" },
{ type: "preserve-bottom-anchor" },
{ type: "flow", regions: ["shell", "following"] },
],
{ perMarker: true },
),
)
})
test("keeps rows stable when later text arrives before shell output", async ({ page }, testInfo) => {
const shellID = "prt_late_text_01_shell"
const followingID = "prt_late_text_02_following"
const timeline = await setupTimeline(page, {
messages: [userMessage(), assistantMessage([shell(shellID, "running")], { completed: false })],
settings: { shellToolPartsExpanded: true },
cpuRate: 4,
seedHistory: true,
})
await waitForVisualSettle(page, [`[data-timeline-part-id="${shellID}"]`])
const regions = defineVisualRegions({
shell: { selector: `[data-timeline-part-id="${shellID}"]`, closest: '[data-timeline-row="AssistantPart"]' },
following: {
selector: `[data-timeline-part-id="${followingID}"]`,
closest: '[data-timeline-row="AssistantPart"]',
},
})
await startVisualProbe(page, regions)
await timeline.send(partUpdated(textPart(followingID, "Later assistant content arrived before shell output.")), 240)
await timeline.send(partUpdated(shell(shellID, "running", lines(20))), 300)
await timeline.send(partUpdated(shell(shellID, "completed", lines(20))), 600)
const trace = await stopVisualProbe<keyof typeof regions>(page)
await reportVisualStability(
testInfo,
"late-text-before-shell-output",
trace,
visualPlan(
regions,
[
{ type: "required", regions: ["shell", "following"] },
{ type: "unique", regions: ["shell", "following"] },
{ type: "stable", regions: ["shell"] },
{ type: "opacity", regions: "all" },
{ type: "continuity", regions: "all" },
{ type: "motion", regions: "all", maxPositionReversals: 0 },
{ type: "label-stability", regions: "all" },
{ type: "preserve-bottom-anchor" },
{ type: "flow", regions: ["shell", "following"] },
],
{ perMarker: true },
),
)
})
function lines(count: number) {
return Array.from({ length: count }, (_, index) => `line ${index + 1}`).join("\n")
}
|