import { cleanContent, cleanCodeBlock } from './content-utils.js';
describe('Content Utilities', () => {
describe('cleanContent', () => {
it('should convert escaped newlines to actual newlines', () => {
const input = 'Line 1\\nLine 2\\nLine 3';
const result = cleanContent(input);
expect(result).toBe('Line 1\nLine 2\nLine 3');
});
it('should normalize Windows line endings', () => {
const input = 'Line 1\r\nLine 2\r\nLine 3';
const result = cleanContent(input);
expect(result).toBe('Line 1\nLine 2\nLine 3');
});
it('should convert tabs to spaces', () => {
const input = 'Line 1\tindented';
const result = cleanContent(input);
// Tabs are converted to 2 spaces, then multiple spaces become single space
expect(result).toBe('Line 1 indented');
});
it('should replace multiple spaces with single space', () => {
const input = 'Too many spaces';
const result = cleanContent(input);
expect(result).toBe('Too many spaces');
});
it('should trim trailing whitespace from each line', () => {
const input = 'Line 1 \nLine 2 ';
const result = cleanContent(input);
expect(result).toBe('Line 1\nLine 2');
});
it('should preserve leading indentation', () => {
const input = ' indented line\n more indented';
const result = cleanContent(input);
expect(result).toBe('indented line\n more indented');
});
it('should reduce more than 2 consecutive newlines to 2', () => {
const input = 'Para 1\n\n\n\n\nPara 2';
const result = cleanContent(input);
expect(result).toBe('Para 1\n\nPara 2');
});
it('should trim leading and trailing whitespace', () => {
const input = ' \n\nContent here\n\n ';
const result = cleanContent(input);
expect(result).toBe('Content here');
});
it('should handle empty string', () => {
expect(cleanContent('')).toBe('');
});
it('should handle string with only whitespace', () => {
expect(cleanContent(' \n\n ')).toBe('');
});
it('should handle complex mixed content', () => {
const input = ' Title \r\n\r\n\r\n\r\n Content with multiple spaces \n\tTabbed';
const result = cleanContent(input);
// Leading spaces preserved as single space, tabs converted to spaces then collapsed
expect(result).toBe('Title\n\n Content with multiple spaces\n Tabbed');
});
});
describe('cleanCodeBlock', () => {
it('should trim leading and trailing whitespace', () => {
const input = ' \nconst x = 1;\n ';
const result = cleanCodeBlock(input);
expect(result).toBe('const x = 1;');
});
it('should convert tabs to spaces', () => {
const input = 'function test() {\n\treturn true;\n}';
const result = cleanCodeBlock(input);
expect(result).toBe('function test() {\n return true;\n}');
});
it('should reduce multiple blank lines', () => {
const input = 'line 1\n\n\n\nline 2';
const result = cleanCodeBlock(input);
expect(result).toBe('line 1\n\nline 2');
});
it('should replace non-breaking spaces with regular spaces', () => {
const input = 'const\u00A0x\u00A0=\u00A01;';
const result = cleanCodeBlock(input);
expect(result).toBe('const x = 1;');
});
it('should handle empty string', () => {
expect(cleanCodeBlock('')).toBe('');
});
it('should handle code with multiple formatting issues', () => {
const input = '\n\t\tconst x\u00A0= 1;\n\n\n\n\treturn x;\n';
const result = cleanCodeBlock(input);
expect(result).toBe('const x = 1;\n\n return x;');
});
it('should preserve single blank lines', () => {
const input = 'line 1\n\nline 2';
const result = cleanCodeBlock(input);
expect(result).toBe('line 1\n\nline 2');
});
it('should handle code with mixed indentation', () => {
const input = 'function test() {\n\tif (true) {\n\t\treturn;\n\t}\n}';
const result = cleanCodeBlock(input);
expect(result).toBe('function test() {\n if (true) {\n return;\n }\n}');
});
});
});
