58 lines
1.8 KiB
TypeScript
58 lines
1.8 KiB
TypeScript
import { describe, expect, it } from 'vitest';
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import { buildTimelineEvents } from './PropertiesPane';
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import type { Property } from '../../types';
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function makeProperty(overrides: Partial<Property>): Property {
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return { lat: 51, lon: -0.1, ...overrides } as Property;
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}
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// Compact, discriminated summary of each event so assertions stay type-safe.
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function summarize(property: Property): string[] {
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return buildTimelineEvents(property).map((event) => {
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switch (event.kind) {
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case 'tenure':
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return `tenure:${event.status}:${event.year}`;
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case 'sale':
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return `sale:${event.year}`;
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case 'reno':
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return `reno:${event.event}:${event.year}`;
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case 'built':
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return `built:${event.year}`;
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}
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});
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}
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describe('buildTimelineEvents', () => {
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it('renders tenure changes newest-first with their status', () => {
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expect(
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summarize(
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makeProperty({
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tenure_history: [
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{ year: 2019, status: 'Rented (private)' },
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{ year: 2023, status: 'Owner-occupied' },
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],
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})
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)
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).toEqual(['tenure:Owner-occupied:2023', 'tenure:Rented (private):2019']);
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});
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it('interleaves tenure changes with sales by year', () => {
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expect(
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summarize(
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makeProperty({
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historical_prices: [
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{ year: 2015, month: 6, price: 200_000 },
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// Most recent sale is the card headline, so it is dropped here.
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{ year: 2024, month: 1, price: 300_000 },
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],
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tenure_history: [{ year: 2020, status: 'Rented (private)' }],
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})
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)
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).toEqual(['tenure:Rented (private):2020', 'sale:2015']);
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});
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it('emits nothing when there is no tenure history', () => {
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expect(summarize(makeProperty({}))).toEqual([]);
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});
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});
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