Class_generator/tests/unit/edge-cases-simple.test.js

import { test, describe, beforeEach, afterEach } from 'node:test';
import { strict as assert } from 'node:assert';
import { createMockDOM, cleanupMockDOM, createLogCapture } from '../utils/test-helpers.js';

// Tests d'edge cases simplifiés qui ne dépendent pas du chargement des modules
describe('Edge Cases - Tests Simplifiés', () => {
    let logCapture;

    beforeEach(() => {
        createMockDOM();
        logCapture = createLogCapture();
    });

    afterEach(() => {
        logCapture.restore();
        cleanupMockDOM();
    });

    describe('Cas de Données Corrompues', () => {
        test('devrait gérer JSON malformé', async () => {
            const malformedJson = '{"name": "Incomplete JSON"';

            try {
                JSON.parse(malformedJson);
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error instanceof SyntaxError);
                assert.ok(error.message.includes('Unexpected'));
            }
        });

        test('devrait gérer caractères Unicode', () => {
            const unicodeText = "Café naïve 🚀 测试 العربية";
            assert.ok(typeof unicodeText === 'string');
            assert.ok(unicodeText.length > 0);

            // Test JSON avec Unicode
            const jsonData = JSON.stringify({ text: unicodeText });
            const parsed = JSON.parse(jsonData);
            assert.equal(parsed.text, unicodeText);
        });

        test('devrait gérer références circulaires', () => {
            const obj = { name: "Test" };
            obj.self = obj;

            try {
                JSON.stringify(obj);
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('circular') || error.message.includes('Converting'));
            }
        });

        test('devrait gérer objets très profonds', () => {
            let deepObj = {};
            let current = deepObj;

            // Créer une structure profonde
            for (let i = 0; i < 1000; i++) {
                current.nested = { level: i };
                current = current.nested;
            }

            // Vérifier que l'objet existe
            assert.ok(deepObj.nested);
            assert.equal(deepObj.nested.level, 0);
        });
    });

    describe('Cas de Réseau et Fetch', () => {
        test('devrait gérer fetch inexistant', async () => {
            const originalFetch = global.fetch;
            delete global.fetch;

            try {
                await fetch('http://test.com');
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('fetch is not defined') ||
                         error.name === 'ReferenceError');
            } finally {
                global.fetch = originalFetch;
            }
        });

        test('devrait gérer timeouts de réseau', async () => {
            global.fetch = async () => {
                await new Promise(resolve => setTimeout(resolve, 100));
                throw new Error('Network timeout');
            };

            try {
                await fetch('http://test.com');
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('timeout') || error.message.includes('Network'));
            }
        });

        test('devrait gérer réponses HTTP malformées', async () => {
            global.fetch = async () => ({
                ok: false,
                status: 999,  // Code de statut invalide
                json: async () => {
                    throw new Error('Invalid JSON response');
                }
            });

            const response = await fetch('http://test.com');
            assert.equal(response.ok, false);
            assert.equal(response.status, 999);

            try {
                await response.json();
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('Invalid JSON'));
            }
        });
    });

    describe('Cas de Mémoire et Performance', () => {
        test('devrait gérer grandes quantités de données', () => {
            const largeArray = new Array(100000).fill('test');
            assert.equal(largeArray.length, 100000);
            assert.equal(largeArray[0], 'test');
            assert.equal(largeArray[99999], 'test');
        });

        test('devrait nettoyer variables après utilisation', () => {
            let testVar = { data: new Array(1000).fill('test') };
            assert.ok(testVar.data);

            testVar = null;
            assert.equal(testVar, null);
        });

        test('devrait gérer calculs intensifs', () => {
            const startTime = Date.now();

            // Calcul qui prend du temps
            let result = 0;
            for (let i = 0; i < 100000; i++) {
                result += Math.sqrt(i);
            }

            const endTime = Date.now();
            assert.ok(result > 0);
            assert.ok(endTime - startTime < 5000); // Moins de 5 secondes
        });
    });

    describe('Cas de Compatibilité API', () => {
        test('devrait détecter localStorage manquant', () => {
            const originalLocalStorage = global.localStorage;
            delete global.localStorage;

            try {
                localStorage.setItem('test', 'value');
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('localStorage is not defined'));
            } finally {
                global.localStorage = originalLocalStorage;
            }
        });

        test('devrait détecter crypto manquant', () => {
            const originalCrypto = global.crypto;
            delete global.crypto;

            try {
                crypto.subtle.digest('SHA-256', new Uint8Array());
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('crypto is not defined'));
            } finally {
                global.crypto = originalCrypto;
            }
        });

        test('devrait détecter URLSearchParams manquant', () => {
            const originalURLSearchParams = global.URLSearchParams;
            delete global.URLSearchParams;

            try {
                new URLSearchParams('test=value');
                assert.fail('Should have thrown an error');
            } catch (error) {
                assert.ok(error.message.includes('URLSearchParams is not defined'));
            } finally {
                global.URLSearchParams = originalURLSearchParams;
            }
        });
    });

    describe('Cas de Sécurité', () => {
        test('devrait rejeter tentatives XSS', () => {
            const maliciousInput = '<script>alert("xss")</script>';

            // Test d'échappement HTML basique
            const escaped = maliciousInput
                .replace(/</g, '&lt;')
                .replace(/>/g, '&gt;');

            assert.equal(escaped, '&lt;script&gt;alert("xss")&lt;/script&gt;');
            assert.ok(!escaped.includes('<script>'));
        });

        test('devrait valider URLs', () => {
            const invalidUrls = [
                '',
                'not-a-url',
                'javascript:alert(1)',
                'data:text/html,<script>alert(1)</script>',
                'file:///etc/passwd'
            ];

            for (const url of invalidUrls) {
                try {
                    new URL(url);
                    // Si c'est une URL valide selon le browser, vérifier le protocole
                    const urlObj = new URL(url);
                    assert.ok(['http:', 'https:'].includes(urlObj.protocol),
                             `Invalid protocol: ${urlObj.protocol}`);
                } catch (error) {
                    // URLs invalides - c'est normal qu'elles échouent
                    assert.ok(error instanceof TypeError);
                }
            }
        });

        test('devrait limiter profondeur d'objets', () => {
            function checkDepth(obj, maxDepth = 100, currentDepth = 0) {
                if (currentDepth > maxDepth) {
                    throw new Error('Object too deep');
                }

                if (typeof obj === 'object' && obj !== null) {
                    for (const key in obj) {
                        if (obj.hasOwnProperty(key)) {
                            checkDepth(obj[key], maxDepth, currentDepth + 1);
                        }
                    }
                }
            }

            // Objet normal - devrait passer
            const normalObj = { a: { b: { c: 'value' } } };
            assert.doesNotThrow(() => checkDepth(normalObj));

            // Objet trop profond - devrait échouer
            let deepObj = {};
            let current = deepObj;
            for (let i = 0; i < 150; i++) {
                current.nested = {};
                current = current.nested;
            }

            assert.throws(() => checkDepth(deepObj), /Object too deep/);
        });
    });

    describe('Cas de Concurrence', () => {
        test('devrait gérer Promises simultanées', async () => {
            const promises = [];

            for (let i = 0; i < 10; i++) {
                promises.push(
                    new Promise(resolve =>
                        setTimeout(() => resolve(i), Math.random() * 50)
                    )
                );
            }

            const results = await Promise.all(promises);
            assert.equal(results.length, 10);
            assert.ok(results.includes(0));
            assert.ok(results.includes(9));
        });

        test('devrait gérer race conditions', async () => {
            let counter = 0;
            const incrementer = async () => {
                const current = counter;
                await new Promise(resolve => setTimeout(resolve, 1));
                counter = current + 1;
            };

            // Lancer plusieurs incréments en parallèle
            const promises = Array(5).fill().map(() => incrementer());
            await Promise.all(promises);

            // Le résultat peut varier selon les race conditions
            assert.ok(counter >= 1 && counter <= 5);
        });
    });

    describe('Cas de Données Extrêmes', () => {
        test('devrait gérer chaînes très longues', () => {
            const longString = 'x'.repeat(1000000); // 1MB de texte
            assert.equal(longString.length, 1000000);
            assert.equal(longString[0], 'x');
            assert.equal(longString[999999], 'x');
        });

        test('devrait gérer nombres en limite de précision', () => {
            const maxSafeInt = Number.MAX_SAFE_INTEGER;
            const beyondMax = maxSafeInt + 1;

            assert.equal(maxSafeInt, 9007199254740991);
            assert.notEqual(beyondMax - 1, maxSafeInt); // Perte de précision
        });

        test('devrait gérer tableaux très volumineux', () => {
            const largeArray = new Array(1000000);
            largeArray.fill(42);

            assert.equal(largeArray.length, 1000000);
            assert.equal(largeArray[0], 42);
            assert.equal(largeArray[999999], 42);

            // Test de performance - devrait être rapide
            const startTime = Date.now();
            const sum = largeArray.reduce((acc, val) => acc + val, 0);
            const endTime = Date.now();

            assert.equal(sum, 42000000);
            assert.ok(endTime - startTime < 1000); // Moins d'1 seconde
        });
    });
});