test/cfg-tests.ts

// Copyright (c) 2017, Najjar Chedy
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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import * as cfg from '../lib/cfg/cfg';

import {fs, makeFakeCompilerInfo, path, resolvePathFromTestRoot} from './utils';

async function DoCfgTest(cfgArg, filename) {
    const contents = await fs.readJson(filename, 'utf8');
    const structure = cfg.generateStructure(
        makeFakeCompilerInfo({
            compilerType: '',
            version: cfgArg,
        }),
        contents.asm,
    );
    structure.should.deep.equal(contents.cfg);
}

describe('Cfg test cases', () => {
    const testcasespath = resolvePathFromTestRoot('cfg-cases');

    /*
     * NB: this readdir must *NOT* be async
     *
     * Mocha calls the function passed to `describe` synchronously
     * and expects the test suite to be fully configured upon return.
     *
     * If you pass an async function to describe and setup test cases
     * after an await there is no guarantee they will be found, and
     * if they are they will not end up in the expected suite.
     */
    const files = fs.readdirSync(testcasespath);

    describe('gcc', () => {
        for (const filename of files.filter(x => x.includes('gcc'))) {
            it(filename, async () => {
                await DoCfgTest('g++', path.join(testcasespath, filename));
            });
        }
    });

    describe('clang', () => {
        for (const filename of files.filter(x => x.includes('clang'))) {
            it(filename, async () => {
                await DoCfgTest('clang', path.join(testcasespath, filename));
            });
        }
    });
});