feat(linkedin): add state-updater.mjs — deterministic state mutations with tests
Pure functions for post tracking (streak, week rollover, first_post_date), content history pruning, and follower count updates. 19 tests green. Follows week-rollover.mjs pattern (pure functions) + queue-manager.mjs pattern (I/O wrapper with atomic writes). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Kjell Tore Guttormsen
parent
b3979d0e5d
commit
aa5cca9cf6
2 changed files with 548 additions and 0 deletions
|
|
@ -0,0 +1,295 @@
|
|||
import { describe, test } from 'node:test';
|
||||
import assert from 'node:assert/strict';
|
||||
import { updatePostTracking, pruneContentHistory, updateFollowerCount } from '../state-updater.mjs';
|
||||
|
||||
const SAMPLE_STATE = `---
|
||||
last_post_date: "2026-04-05"
|
||||
first_post_date: "2026-01-15"
|
||||
last_post_topic: "AI strategy"
|
||||
posts_this_week: 2
|
||||
weekly_goal: 3
|
||||
current_streak: 5
|
||||
longest_streak: 12
|
||||
current_week: "2026-W14"
|
||||
last_import_date: "2026-04-01"
|
||||
last_import_week: "2026-W14"
|
||||
follower_count: 850
|
||||
follower_target: 10000
|
||||
target_date: "2026-12-31"
|
||||
monthly_growth: []
|
||||
projected_10k_date: ""
|
||||
growth_rate_needed: 0
|
||||
---
|
||||
|
||||
# LinkedIn Session State
|
||||
|
||||
## Recent Posts
|
||||
|
||||
- [2026-04-05] "AI governance is not about..." (1450) - AI strategy
|
||||
- [2026-04-03] "Three things I learned..." (1200) - leadership
|
||||
- [2026-03-28] "Why most teams fail at..." (1350) - team building
|
||||
|
||||
## Session Notes
|
||||
|
||||
## Planned Content
|
||||
|
||||
## Milestone Log
|
||||
`;
|
||||
|
||||
describe('updatePostTracking', () => {
|
||||
test('sets last_post_date to provided date', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-07',
|
||||
postTopic: 'AI governance',
|
||||
hookText: 'The real problem with AI governance...',
|
||||
charCount: 1500,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^last_post_date: "2026-04-07"$/m);
|
||||
});
|
||||
|
||||
test('sets last_post_topic', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-07',
|
||||
postTopic: 'AI governance',
|
||||
hookText: 'The real problem...',
|
||||
charCount: 1500,
|
||||
format: 'post'
|
||||
});
|
||||
assert.match(result.content, /^last_post_topic: "AI governance"$/m);
|
||||
});
|
||||
|
||||
test('increments posts_this_week when same week', () => {
|
||||
// 2026-04-06 is a Monday, ISO W15. current_week is W14.
|
||||
// Use a date that stays in W14: 2026-04-05 is Sunday W14 — but last_post_date is already 04-05.
|
||||
// Let's use a state with current_week matching the post date week.
|
||||
const w15State = SAMPLE_STATE.replace('current_week: "2026-W14"', 'current_week: "2026-W15"');
|
||||
const result = updatePostTracking(w15State, {
|
||||
postDate: '2026-04-07', // Tuesday W15
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^posts_this_week: 3$/m); // was 2, incremented
|
||||
});
|
||||
|
||||
test('increments streak when gap <= 2 days', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-06', // 1 day after last_post_date 2026-04-05
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^current_streak: 6$/m); // was 5, incremented
|
||||
});
|
||||
|
||||
test('resets streak to 1 when gap > 2 days', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-09', // 4 days after 2026-04-05
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^current_streak: 1$/m);
|
||||
});
|
||||
|
||||
test('sets first_post_date when null', () => {
|
||||
const nullFirstPost = SAMPLE_STATE.replace(
|
||||
'first_post_date: "2026-01-15"',
|
||||
'first_post_date: null'
|
||||
);
|
||||
const result = updatePostTracking(nullFirstPost, {
|
||||
postDate: '2026-04-07',
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^first_post_date: "2026-04-07"$/m);
|
||||
});
|
||||
|
||||
test('does NOT overwrite existing first_post_date', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-07',
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^first_post_date: "2026-01-15"$/m);
|
||||
});
|
||||
|
||||
test('triggers week rollover when ISO week changes', () => {
|
||||
// 2026-04-14 is W16, current_week is W14
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-14',
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
// After rollover, posts_this_week resets to 0 then increments to 1
|
||||
assert.match(result.content, /^posts_this_week: 1$/m);
|
||||
assert.match(result.content, /^current_week: "2026-W16"$/m);
|
||||
});
|
||||
|
||||
test('appends to Recent Posts section', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-06',
|
||||
postTopic: 'AI governance',
|
||||
hookText: 'The real problem with AI governance today...',
|
||||
charCount: 1500,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.ok(result.content.includes('- [2026-04-06] "The real problem with AI governance today..." (1500) - AI governance'));
|
||||
// Existing entries should still be there
|
||||
assert.ok(result.content.includes('- [2026-04-05] "AI governance is not about..."'));
|
||||
});
|
||||
|
||||
test('updates longest_streak when current exceeds it', () => {
|
||||
const highStreak = SAMPLE_STATE.replace('current_streak: 5', 'current_streak: 12');
|
||||
const result = updatePostTracking(highStreak, {
|
||||
postDate: '2026-04-06', // 1 day gap, streak increments to 13
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^current_streak: 13$/m);
|
||||
assert.match(result.content, /^longest_streak: 13$/m);
|
||||
});
|
||||
|
||||
test('does not update longest_streak when current is lower', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-06',
|
||||
postTopic: 'test',
|
||||
hookText: 'Hook',
|
||||
charCount: 1000,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^current_streak: 6$/m);
|
||||
assert.match(result.content, /^longest_streak: 12$/m); // unchanged
|
||||
});
|
||||
|
||||
test('returns changes array describing what changed', () => {
|
||||
const result = updatePostTracking(SAMPLE_STATE, {
|
||||
postDate: '2026-04-06',
|
||||
postTopic: 'AI governance',
|
||||
hookText: 'Hook',
|
||||
charCount: 1500,
|
||||
format: 'post'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.ok(Array.isArray(result.changes));
|
||||
assert.ok(result.changes.length > 0);
|
||||
});
|
||||
});
|
||||
|
||||
describe('pruneContentHistory', () => {
|
||||
test('removes entries older than 90 days', () => {
|
||||
const today = new Date();
|
||||
const old = new Date(today);
|
||||
old.setDate(old.getDate() - 100);
|
||||
const oldDate = old.toISOString().slice(0, 10);
|
||||
|
||||
const recent = new Date(today);
|
||||
recent.setDate(recent.getDate() - 10);
|
||||
const recentDate = recent.toISOString().slice(0, 10);
|
||||
|
||||
const stateWithOld = SAMPLE_STATE.replace(
|
||||
'## Recent Posts\n\n',
|
||||
`## Recent Posts\n\n- [${oldDate}] "Old post..." (1000) - old topic\n- [${recentDate}] "Recent post..." (1200) - recent topic\n`
|
||||
);
|
||||
|
||||
const result = pruneContentHistory(stateWithOld, 90);
|
||||
assert.notEqual(result, null);
|
||||
assert.equal(result.pruned, 1);
|
||||
assert.ok(!result.content.includes(oldDate));
|
||||
assert.ok(result.content.includes(recentDate));
|
||||
});
|
||||
|
||||
test('preserves entries within 90 days', () => {
|
||||
const today = new Date();
|
||||
const recent = new Date(today);
|
||||
recent.setDate(recent.getDate() - 30);
|
||||
const recentDate = recent.toISOString().slice(0, 10);
|
||||
|
||||
const stateWithRecent = SAMPLE_STATE.replace(
|
||||
'## Recent Posts\n\n',
|
||||
`## Recent Posts\n\n- [${recentDate}] "Recent post..." (1200) - topic\n`
|
||||
);
|
||||
|
||||
const result = pruneContentHistory(stateWithRecent, 90);
|
||||
assert.equal(result, null); // nothing to prune
|
||||
});
|
||||
|
||||
test('returns null when no entries exist', () => {
|
||||
const emptyRecent = SAMPLE_STATE.replace(
|
||||
/## Recent Posts\n\n[\s\S]*?(?=## Session Notes)/,
|
||||
'## Recent Posts\n\n'
|
||||
);
|
||||
const result = pruneContentHistory(emptyRecent, 90);
|
||||
assert.equal(result, null);
|
||||
});
|
||||
|
||||
test('handles custom maxAgeDays', () => {
|
||||
const today = new Date();
|
||||
const old = new Date(today);
|
||||
old.setDate(old.getDate() - 40);
|
||||
const oldDate = old.toISOString().slice(0, 10);
|
||||
|
||||
const stateWithOld = SAMPLE_STATE.replace(
|
||||
'## Recent Posts\n\n',
|
||||
`## Recent Posts\n\n- [${oldDate}] "Somewhat old..." (1000) - topic\n`
|
||||
);
|
||||
|
||||
const result = pruneContentHistory(stateWithOld, 30);
|
||||
assert.notEqual(result, null);
|
||||
assert.equal(result.pruned, 1);
|
||||
});
|
||||
});
|
||||
|
||||
describe('updateFollowerCount', () => {
|
||||
test('updates follower_count', () => {
|
||||
const result = updateFollowerCount(SAMPLE_STATE, {
|
||||
count: 920,
|
||||
month: '2026-04'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.match(result.content, /^follower_count: 920$/m);
|
||||
});
|
||||
|
||||
test('recalculates growth_rate_needed', () => {
|
||||
const result = updateFollowerCount(SAMPLE_STATE, {
|
||||
count: 920,
|
||||
month: '2026-04'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
const match = result.content.match(/^growth_rate_needed: (\d+)$/m);
|
||||
assert.ok(match, 'growth_rate_needed should be present');
|
||||
const rate = parseInt(match[1], 10);
|
||||
assert.ok(rate > 0, 'growth_rate_needed should be positive');
|
||||
});
|
||||
|
||||
test('appends to Milestone Log section', () => {
|
||||
const result = updateFollowerCount(SAMPLE_STATE, {
|
||||
count: 920,
|
||||
month: '2026-04'
|
||||
});
|
||||
assert.notEqual(result, null);
|
||||
assert.ok(result.content.includes('[2026-04] 920 (+70)'));
|
||||
});
|
||||
});
|
||||
Loading…
Add table
Add a link
Reference in a new issue