Experiments DB Dev
309 lines
12 KiB
JavaScript
309 lines
12 KiB
JavaScript
import {
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parseCSVHeaders,
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parseCSV,
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getUniqueNoteValues,
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runAnalysis,
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extractNumber,
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} from '../src/lib/csvAnalysis';
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// ── Fixtures ───────────────────────────────────────────────────────────────────
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// Minimal CSV mimicking the real experiment file structure
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const FIXTURE_CSV = `timestamp,frame_number,frame_line_status,note
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0.0,1,10,
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1.0,2,10,f
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2.0,3,10,s
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3.0,4,10,s
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4.0,5,10,f
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5.0,6,10,
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6.0,7,10,s
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7.0,8,10,f
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8.0,9,10,f
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9.0,10,10,s`;
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// Same data but with Windows-style line endings
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const FIXTURE_CSV_CRLF = FIXTURE_CSV.replace(/\n/g, '\r\n');
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// CSV with quoted field containing a comma
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const FIXTURE_CSV_QUOTED = `timestamp,note\n1.0,"hello, world"\n2.0,plain`;
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// Out-of-order timestamps (should be sorted)
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const FIXTURE_UNSORTED = `timestamp,note
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3.0,s
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1.0,f
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2.0,s`;
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const CLASSIFICATIONS = { f: 'Failure', s: 'Success' };
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// ── parseCSVHeaders ────────────────────────────────────────────────────────────
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describe('parseCSVHeaders', () => {
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test('returns column names from first line', () => {
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expect(parseCSVHeaders(FIXTURE_CSV)).toEqual([
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'timestamp', 'frame_number', 'frame_line_status', 'note',
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]);
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});
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test('handles CRLF line endings', () => {
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expect(parseCSVHeaders(FIXTURE_CSV_CRLF)).toEqual([
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'timestamp', 'frame_number', 'frame_line_status', 'note',
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]);
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});
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test('handles single-line CSV (no newline)', () => {
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expect(parseCSVHeaders('a,b,c')).toEqual(['a', 'b', 'c']);
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});
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});
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// ── parseCSV ──────────────────────────────────────────────────────────────────
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describe('parseCSV', () => {
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test('returns headers and rows', () => {
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const { headers, rows } = parseCSV(FIXTURE_CSV);
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expect(headers).toEqual(['timestamp', 'frame_number', 'frame_line_status', 'note']);
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expect(rows).toHaveLength(10);
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});
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test('row values are keyed by header name', () => {
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const { rows } = parseCSV(FIXTURE_CSV);
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expect(rows[0]).toEqual({ timestamp: '0.0', frame_number: '1', frame_line_status: '10', note: '' });
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expect(rows[1]).toEqual({ timestamp: '1.0', frame_number: '2', frame_line_status: '10', note: 'f' });
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});
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test('handles CRLF line endings', () => {
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const { rows } = parseCSV(FIXTURE_CSV_CRLF);
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expect(rows).toHaveLength(10);
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expect(rows[1].note).toBe('f');
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});
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test('handles quoted fields containing commas', () => {
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const { rows } = parseCSV(FIXTURE_CSV_QUOTED);
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expect(rows[0].note).toBe('hello, world');
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expect(rows[1].note).toBe('plain');
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});
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test('skips blank lines', () => {
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const csv = 'a,b\n1,2\n\n3,4\n';
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const { rows } = parseCSV(csv);
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expect(rows).toHaveLength(2);
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});
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});
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// ── getUniqueNoteValues ────────────────────────────────────────────────────────
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describe('getUniqueNoteValues', () => {
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test('returns sorted unique non-empty values', () => {
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const { rows } = parseCSV(FIXTURE_CSV);
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expect(getUniqueNoteValues(rows, 'note')).toEqual(['f', 's']);
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});
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test('ignores empty strings', () => {
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const rows = [{ note: '' }, { note: 'a' }, { note: '' }, { note: 'b' }];
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expect(getUniqueNoteValues(rows, 'note')).toEqual(['a', 'b']);
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});
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test('trims whitespace before deduplication', () => {
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const rows = [{ note: ' a ' }, { note: 'a' }, { note: 'b' }];
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expect(getUniqueNoteValues(rows, 'note')).toEqual(['a', 'b']);
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});
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test('returns empty array when no non-empty notes', () => {
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const rows = [{ note: '' }, { note: '' }];
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expect(getUniqueNoteValues(rows, 'note')).toEqual([]);
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});
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});
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// ── runAnalysis ────────────────────────────────────────────────────────────────
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describe('runAnalysis', () => {
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let result;
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beforeEach(() => {
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const { rows } = parseCSV(FIXTURE_CSV);
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result = runAnalysis(rows, 'timestamp', 'note', CLASSIFICATIONS);
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});
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// Fixture note sequence (sorted by timestamp, empty rows excluded):
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// t=1 f, t=2 s, t=3 s, t=4 f, t=6 s, t=7 f, t=8 f, t=9 s
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// Categories: F S S F S F F S
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test('totalNoteRows counts only rows with non-empty note', () => {
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expect(result.totalNoteRows).toBe(8);
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});
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test('sequence preserves order and maps to categories', () => {
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const notes = result.sequence.map(r => r.note);
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expect(notes).toEqual(['f', 's', 's', 'f', 's', 'f', 'f', 's']);
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const cats = result.sequence.map(r => r.category);
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expect(cats).toEqual(['Failure', 'Success', 'Success', 'Failure', 'Success', 'Failure', 'Failure', 'Success']);
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});
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test('categoryCounts totals are correct', () => {
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expect(result.categoryCounts['Failure'].total).toBe(4);
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expect(result.categoryCounts['Success'].total).toBe(4);
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});
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test('categoryCounts byNote breakdown is correct', () => {
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expect(result.categoryCounts['Failure'].byNote).toEqual({ f: 4 });
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expect(result.categoryCounts['Success'].byNote).toEqual({ s: 4 });
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});
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test('runs (run-length encoding) are correct', () => {
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// F S S F S F F S → F×1, S×2, F×1, S×1, F×2, S×1
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expect(result.runs).toEqual([
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{ category: 'Failure', length: 1 },
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{ category: 'Success', length: 2 },
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{ category: 'Failure', length: 1 },
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{ category: 'Success', length: 1 },
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{ category: 'Failure', length: 2 },
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{ category: 'Success', length: 1 },
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]);
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});
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test('consecutiveStats totalRuns', () => {
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expect(result.consecutiveStats['Failure'].totalRuns).toBe(3);
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expect(result.consecutiveStats['Success'].totalRuns).toBe(3);
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});
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test('consecutiveStats maxRun', () => {
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expect(result.consecutiveStats['Failure'].maxRun).toBe(2);
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expect(result.consecutiveStats['Success'].maxRun).toBe(2);
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});
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test('consecutiveStats avgRun', () => {
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// Failure runs: [1,1,2] → avg = 4/3
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expect(result.consecutiveStats['Failure'].avgRun).toBeCloseTo(4 / 3);
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// Success runs: [2,1,1] → avg = 4/3
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expect(result.consecutiveStats['Success'].avgRun).toBeCloseTo(4 / 3);
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});
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test('consecutiveStats runLengths array', () => {
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expect(result.consecutiveStats['Failure'].runLengths).toEqual([1, 1, 2]);
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expect(result.consecutiveStats['Success'].runLengths).toEqual([2, 1, 1]);
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});
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});
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describe('runAnalysis — sorting', () => {
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test('sorts rows by timestamp before building sequence', () => {
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const { rows } = parseCSV(FIXTURE_UNSORTED);
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// Input order: s(3), f(1), s(2) — sorted order: f(1), s(2), s(3)
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const result = runAnalysis(rows, 'timestamp', 'note', CLASSIFICATIONS);
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expect(result.sequence.map(r => r.note)).toEqual(['f', 's', 's']);
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});
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});
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describe('runAnalysis — unclassified notes', () => {
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test('unclassified notes appear in sequence with null category', () => {
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const { rows } = parseCSV(FIXTURE_CSV);
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// Only classify 'f'; leave 's' unclassified
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const result = runAnalysis(rows, 'timestamp', 'note', { f: 'Failure' });
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const nullCats = result.sequence.filter(r => r.category === null);
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expect(nullCats.length).toBe(4); // 4 's' notes
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});
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test('unclassified notes are excluded from categoryCounts', () => {
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const { rows } = parseCSV(FIXTURE_CSV);
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const result = runAnalysis(rows, 'timestamp', 'note', { f: 'Failure' });
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expect(result.categoryCounts['Success']).toBeUndefined();
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});
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test('unclassified notes do not break or extend runs', () => {
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// Sequence with 'x' unclassified: f x f → should still be one Failure run of 2
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const csv = 'ts,note\n1.0,f\n2.0,x\n3.0,f';
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const { rows } = parseCSV(csv);
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// 'x' is unclassified, 'f' → Failure
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// After skipping 'x': f, f → one run of Failure×2
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const result = runAnalysis(rows, 'ts', 'note', { f: 'Failure' });
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expect(result.runs).toEqual([{ category: 'Failure', length: 2 }]);
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});
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});
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describe('runAnalysis — multiple note values per category', () => {
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test('groups multiple note values under one category', () => {
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// The user's example: ss and s both belong to Success
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const csv = 'ts,note\n1.0,ss\n2.0,s\n3.0,s';
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const { rows } = parseCSV(csv);
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const result = runAnalysis(rows, 'ts', 'note', { ss: 'Success', s: 'Success' });
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expect(result.categoryCounts['Success'].total).toBe(3);
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expect(result.categoryCounts['Success'].byNote).toEqual({ ss: 1, s: 2 });
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});
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test('run-length encoding with multiple note values in same category', () => {
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const csv = 'ts,note\n1.0,ss\n2.0,s\n3.0,f';
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const { rows } = parseCSV(csv);
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const result = runAnalysis(rows, 'ts', 'note', { ss: 'Success', s: 'Success', f: 'Failure' });
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// ss and s are both Success → run of 2, then Failure run of 1
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expect(result.runs).toEqual([
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{ category: 'Success', length: 2 },
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{ category: 'Failure', length: 1 },
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]);
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});
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});
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describe('runAnalysis — edge cases', () => {
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test('empty rows returns zero totals', () => {
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const result = runAnalysis([], 'timestamp', 'note', CLASSIFICATIONS);
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expect(result.totalNoteRows).toBe(0);
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expect(result.sequence).toEqual([]);
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expect(result.runs).toEqual([]);
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expect(result.categoryCounts).toEqual({});
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expect(result.consecutiveStats).toEqual({});
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});
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test('all notes unclassified', () => {
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const { rows } = parseCSV(FIXTURE_CSV);
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const result = runAnalysis(rows, 'timestamp', 'note', {});
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expect(result.categoryCounts).toEqual({});
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expect(result.runs).toEqual([]);
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});
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test('single note row', () => {
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const csv = 'ts,note\n1.0,f';
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const { rows } = parseCSV(csv);
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const result = runAnalysis(rows, 'ts', 'note', { f: 'Failure' });
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expect(result.totalNoteRows).toBe(1);
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expect(result.runs).toEqual([{ category: 'Failure', length: 1 }]);
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expect(result.consecutiveStats['Failure'].maxRun).toBe(1);
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expect(result.consecutiveStats['Failure'].avgRun).toBe(1);
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});
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test('all same category', () => {
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const csv = 'ts,note\n1.0,f\n2.0,f\n3.0,f';
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const { rows } = parseCSV(csv);
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const result = runAnalysis(rows, 'ts', 'note', { f: 'Failure' });
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expect(result.runs).toEqual([{ category: 'Failure', length: 3 }]);
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expect(result.consecutiveStats['Failure'].maxRun).toBe(3);
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expect(result.consecutiveStats['Failure'].totalRuns).toBe(1);
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});
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});
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describe('extractNumber', () => {
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test('extracts positive decimal from prefixed string', () => {
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expect(extractNumber('L25.5')).toBe(25.5);
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});
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test('extracts negative integer with letter prefix', () => {
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expect(extractNumber('R-12')).toBe(-12);
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});
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test('extracts integer from underscore-separated label', () => {
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expect(extractNumber('trial_007')).toBe(7);
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});
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test('does not parse scientific notation as one number', () => {
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// Accepted limitation: regex matches "3.2", strips "e2"
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expect(extractNumber('3.2e2')).toBe(3.2);
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});
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test('strips trailing units', () => {
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expect(extractNumber('42 ms')).toBe(42);
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});
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test('returns null for purely alphabetic string', () => {
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expect(extractNumber('abc')).toBeNull();
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});
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test('returns null for empty string', () => {
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expect(extractNumber('')).toBeNull();
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});
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test('returns null for null/undefined', () => {
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expect(extractNumber(null)).toBeNull();
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expect(extractNumber(undefined)).toBeNull();
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});
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});
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