flagsmith-nodejs/tests/engine/e2e/engine.test.ts

Flagsmith lets you manage features flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features.

import fs from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';
import { getEvaluationResult } from '../../../flagsmith-engine/index.js';
import { Flags } from '../../../sdk/models.js';
import { EvaluationContext } from '../../../flagsmith-engine/evaluation/evaluationContext/evaluationContext.types.js';
import { parse as parseJsonc } from 'jsonc-parser';
import {
    EvaluationContextWithMetadata,
    EvaluationResult
} from '../../../flagsmith-engine/evaluation/models.js';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const TEST_DATA_DIR = path.join(__dirname, '../engine-tests/engine-test-data/test_cases');
interface TestCase {
    context: EvaluationContext;
    result: EvaluationResult;
}

function getTestFiles(): string[] {
    const files = fs.readdirSync(TEST_DATA_DIR);
    return files
        .filter(f => f.endsWith('.json') || f.endsWith('.jsonc'))
        .map(f => path.join(TEST_DATA_DIR, f));
}

function loadTestFile(filePath: string): TestCase {
    const content = fs.readFileSync(filePath, 'utf-8');
    return parseJsonc(content);
}

describe('Engine Integration Tests', () => {
    const testFiles = getTestFiles();

    if (testFiles.length === 0) {
        throw new Error(`No test files found in ${TEST_DATA_DIR}`);
    }

    testFiles.forEach(filePath => {
        const testName = path.basename(filePath, path.extname(filePath));

        test(testName, () => {
            const testCase = loadTestFile(filePath);
            const engine_response = getEvaluationResult(
                testCase.context as EvaluationContextWithMetadata
            );
            expect(engine_response).toStrictEqual(testCase.result);
        });
    });
});