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🧪 Add unit tests for arrayParser.ts #47

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Merged
Sanan507 merged 4 commits into from
Aug 1, 2026
Merged

🧪 Add unit tests for arrayParser.ts #47

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8d7b44d
test: add comprehensive unit tests for arrayParser.ts
google-labs-jules[bot] Aug 1, 2026
6642c18
Merge branch 'master' into jules/add-array-parser-tests-3677175787313…
Sanan507 Aug 1, 2026
68f5980
fix(backend): remove duplicate DIRS definition
google-labs-jules[bot] Aug 1, 2026
f734034
Merge branch 'master' into jules/add-array-parser-tests-3677175787313…
Sanan507 Aug 1, 2026
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34 changes: 18 additions & 16 deletions frontend/src/utils/arrayParser.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,49 +2,51 @@ import { describe, it, expect } from 'vitest';
import { parseCustomArrayInput } from './arrayParser';

describe('parseCustomArrayInput', () => {
it('should parse a typical comma-separated input', () => {
expect(parseCustomArrayInput("1, 2, 3")).toEqual([1, 2, 3]);
it('should parse standard comma-separated integers', () => {
expect(parseCustomArrayInput('5, 8, 10')).toEqual([5, 8, 10]);
});

it('should handle trailing commas', () => {
expect(parseCustomArrayInput("5, 8,")).toEqual([5, 8]);
expect(parseCustomArrayInput('5, 8,')).toEqual([5, 8]);
});

it('should handle empty middle commas', () => {
expect(parseCustomArrayInput("5,, 8")).toEqual([5, 8]);
expect(parseCustomArrayInput('5,, 8')).toEqual([5, 8]);
});

it('should handle a single element', () => {
expect(parseCustomArrayInput("5")).toEqual([5]);
it('should parse a single element', () => {
expect(parseCustomArrayInput('5')).toEqual([5]);
});

it('should handle a zero element', () => {
expect(parseCustomArrayInput("0")).toEqual([0]);
it('should parse a zero element', () => {
expect(parseCustomArrayInput('0')).toEqual([0]);
});

it('should handle duplicate elements', () => {
expect(parseCustomArrayInput("5, 5, 5")).toEqual([5, 5, 5]);
expect(parseCustomArrayInput('5, 5, 5')).toEqual([5, 5, 5]);
});

it('should ignore invalid non-numeric entries', () => {
expect(parseCustomArrayInput("5, abc, 8")).toEqual([5, 8]);
expect(parseCustomArrayInput('5, abc, 8')).toEqual([5, 8]);
expect(parseCustomArrayInput('abc, def')).toEqual([]);
expect(parseCustomArrayInput('1, 2.5, 3')).toEqual([1, 3]); // ignores floats based on regex /^-?\d+$/
});

it('should parse negative numbers', () => {
expect(parseCustomArrayInput("-5, 0, 10")).toEqual([-5, 0, 10]);
it('should handle negative numbers', () => {
expect(parseCustomArrayInput('-5, 0, 10')).toEqual([-5, 0, 10]);
});

it('should return an empty array for an empty string or all non-numeric input', () => {
expect(parseCustomArrayInput("")).toEqual([]);
expect(parseCustomArrayInput("abc, def")).toEqual([]);
});

it('should return an empty array for null/undefined/non-string input', () => {
// @ts-expect-error testing invalid input types
it('should return empty array for non-string inputs', () => {
// @ts-expect-error Testing invalid input type
expect(parseCustomArrayInput(null)).toEqual([]);
// @ts-expect-error testing invalid input types
// @ts-expect-error Testing invalid input type
expect(parseCustomArrayInput(undefined)).toEqual([]);
// @ts-expect-error testing invalid input types
// @ts-expect-error Testing invalid input type
expect(parseCustomArrayInput(123)).toEqual([]);
});
});
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