feat: entry list at /content/:key

web/src/lib/__tests__/entryColumns.spec.ts

@@ -0,0 +1,107 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { eventsFields } from '@/lib/__tests__/schemaFixtures'
+import {
+	clearStoredColumns,
+	columnsStorageKey,
+	defaultColumnKeys,
+	readStoredColumns,
+	resolveColumnKeys,
+	storeColumns,
+	toggleColumnKeys,
+} from '@/lib/entryColumns'
+
+const KEY = 'renewcms-content-columns-events'
+const ALL = eventsFields.map((field) => field.key)
+
+afterEach(() => {
+	vi.unstubAllGlobals()
+	localStorage.clear()
+})
+
+describe('defaultColumnKeys', () => {
+	it('takes the first four fields', () => {
+		expect(defaultColumnKeys(eventsFields)).toEqual(['title', 'starts_on', 'ends_on', 'online'])
+	})
+
+	it('takes fewer when the type has fewer', () => {
+		expect(defaultColumnKeys(eventsFields.slice(0, 2))).toEqual(['title', 'starts_on'])
+	})
+})
+
+describe('resolveColumnKeys', () => {
+	it.each([
+		['nothing stored', null, ['title', 'starts_on', 'ends_on', 'online']],
+		['not an array', 'title', ['title', 'starts_on', 'ends_on', 'online']],
+		['an empty array', [], ['title', 'starts_on', 'ends_on', 'online']],
+		['only unknown keys', ['gone'], ['title', 'starts_on', 'ends_on', 'online']],
+		['unknown keys dropped', ['title', 'gone', 'capacity'], ['title', 'capacity']],
+		['schema order, not stored order', ['capacity', 'title'], ['title', 'capacity']],
+		['non-string items ignored', [1, null, 'title'], ['title']],
+		['more than six, first six in schema order', [...ALL].reverse(), ALL.slice(0, 6)],
+		['duplicates counted once', ['title', 'title', 'online'], ['title', 'online']],
+	])('%s', (_, stored, expected) => {
+		expect(resolveColumnKeys(eventsFields, stored)).toEqual(expected)
+	})
+})
+
+describe('toggleColumnKeys', () => {
+	it('adds a key in schema order', () => {
+		expect(toggleColumnKeys(eventsFields, ['title', 'capacity'], 'online', true)).toEqual([
+			'title',
+			'online',
+			'capacity',
+		])
+	})
+
+	it('removes a key', () => {
+		expect(toggleColumnKeys(eventsFields, ['title', 'online'], 'online', false)).toEqual([
+			'title',
+		])
+	})
+
+	it('never removes the last field column', () => {
+		const one = ['capacity']
+
+		expect(toggleColumnKeys(eventsFields, one, 'capacity', false)).toEqual(['capacity'])
+	})
+
+	it('refuses a seventh column', () => {
+		const six = ALL.slice(0, 6)
+
+		expect(toggleColumnKeys(eventsFields, six, 'description', true)).toBe(six)
+	})
+})
+
+describe('storage', () => {
+	it('uses one key per type', () => {
+		expect(columnsStorageKey('events')).toBe(KEY)
+		expect(columnsStorageKey('recipes')).toBe('renewcms-content-columns-recipes')
+	})
+
+	it('writes, reads and clears', () => {
+		storeColumns('events', ['title', 'capacity'])
+
+		expect(localStorage.getItem(KEY)).toBe('["title","capacity"]')
+		expect(readStoredColumns('events')).toEqual(['title', 'capacity'])
+
+		clearStoredColumns('events')
+
+		expect(localStorage.getItem(KEY)).toBeNull()
+	})
+
+	it.each(['not json', '{', ''])('reads "%s" as nothing usable', (raw) => {
+		localStorage.setItem(KEY, raw)
+
+		expect(resolveColumnKeys(eventsFields, readStoredColumns('events'))).toEqual(
+			defaultColumnKeys(eventsFields),
+		)
+	})
+
+	it('swallows a throwing or missing localStorage', () => {
+		vi.stubGlobal('localStorage', undefined)
+
+		expect(readStoredColumns('events')).toBeNull()
+		expect(() => storeColumns('events', ['title'])).not.toThrow()
+		expect(() => clearStoredColumns('events')).not.toThrow()
+	})
+})