assert-integration.js

// loads the plugin in Rollup and Webpack, runs the build tools and assert that everything works

const fs = require('fs');
const {execSync} = require('child_process');

const runIntegrationTest = (pluginInfo) => {
    execSync(pluginInfo.testCommand);
    execSync(pluginInfo.testCommand);

    if (!fs.existsSync(`packages/${pluginInfo.directoryName}/stats/build-log.json`)) {
        throw new Error('Build log file was not found.');
    }

    const logFileContent = fs.readFileSync(`packages/${pluginInfo.directoryName}/stats/build-log.json`);
    const logs = JSON.parse(logFileContent.toString());

    if (logs.length !== 2) {
        throw new Error('Build log file was empty or not correctly written');
    }

    const newLogs = logs.map((log) => Object.assign(log, {date: '0-0-2000'}));

    fs.writeFileSync(`packages/${pluginInfo.directoryName}/stats/build-log.json`, JSON.stringify(newLogs));

    execSync(pluginInfo.testCommand);

    const summaryLogsContent = fs.readFileSync(`packages/${pluginInfo.directoryName}/stats/build-stats-summary.json`);
    const summaryLogs = JSON.parse(summaryLogsContent.toString());

    if (summaryLogs.length !== 1) {
        throw new Error('Summary log file was empty or not correctly written');
    }
};

const webpack4 = {
    directoryName: 'webpack-plugin/integration-test/webpack4',
    testCommand: 'lerna run test:webpack4 --stream --scope webpack-plugin-build-statistics'
};

const webpack5 = {
    directoryName: 'webpack-plugin/integration-test/webpack5',
    testCommand: 'lerna run test:webpack5 --stream --scope webpack-plugin-build-statistics'
};

const rollup = {
    directoryName: 'rollup-plugin',
    testCommand: 'lerna run test --stream --scope rollup-plugin-build-statistics'
};

runIntegrationTest(webpack5);
runIntegrationTest(webpack4);
runIntegrationTest(rollup);