Repository: eslint/eslint
File: tests/lib/eslint/flat-eslint.js (JavaScript)

Code before:

                    eslint = new FlatESLint({
                        overrideConfigFile: true,

                        // specifying cache true the cache will be created
                        cache: true,
                        cacheLocation: "./tmp/.cacheFileDir/",
                        overrideConfig: {
                            rules: {
                                "no-console": 0,
                                "no-unused-vars": 2
                            }
                        },
                        ignore: false
                    });
                    const file = getFixturePath("cache/src", "test-file.js");

                    await eslint.lintFiles([file]);

                    assert(shell.test("-f", path.resolve(`./tmp/.cacheFileDir/.cache_${hash(process.cwd())}`)), "the cache for eslint was created");

                    sinon.restore();
                });
            });

            it("should create the cache file inside the provided directory using the cacheLocation option", async () => {
                assert(!shell.test("-d", path.resolve("./tmp/.cacheFileDir/.cache_hashOfCurrentWorkingDirectory")), "the cache for eslint does not exist");

                eslint = new FlatESLint({
                    overrideConfigFile: true,

                    // specifying cache true the cache will be created
                    cache: true,
                    cacheLocation: "./tmp/.cacheFileDir/",
                    overrideConfig: {
                        rules: {
                            "no-console": 0,
                            "no-unused-vars": 2
                        }
                    },
                    ignore: false
                });
                const file = getFixturePath("cache/src", "test-file.js");

                await eslint.lintFiles([file]);

                assert(shell.test("-f", path.resolve(`./tmp/.cacheFileDir/.cache_${hash(process.cwd())}`)), "the cache for eslint was created");

                sinon.restore();
            });


Review comment (bug):
This is the other failing test. This test was actually identical to the previous one, so I just deleted it. In the original commit  https://github.com/eslint/eslint/commit/b5e66daf76f2015e9283cdcd7556ff1583695d0a, one test was testing the `cacheFile` option of the `CLIEngine` constructor, the other was testing the `cacheLocation` option of the `CLIEngine` constructor. ESLint/FlatESLint constructors only have the `cacheLocation` option. While copying the tests from CLIEngine to ESLint, the `cacheFile` test was probably updated by mistake instead of just being deleted.

Code after:
                beforeEach(() => {
                    deleteCacheDir();
                });

                afterEach(() => {
                    deleteCacheDir();
                });

                it("should create the directory and the cache file inside it when cacheLocation ends with a slash", async () => {
                    assert(!shell.test("-d", path.resolve(cwd, "./tmp/.cacheFileDir/")), "the cache directory already exists and wasn't successfully deleted");

                    eslint = new FlatESLint({
                        overrideConfigFile: true,
                        cwd,

                        // specifying cache true the cache will be created
                        cache: true,
                        cacheLocation: "./tmp/.cacheFileDir/",
                        overrideConfig: {
                            rules: {
                                "no-console": 0,
                                "no-unused-vars": 2
                            }
                        },
                        ignore: false
                    });
                    const file = getFixturePath("cache/src", "test-file.js");

                    await eslint.lintFiles([file]);

                    assert(shell.test("-f", path.resolve(cwd, `./tmp/.cacheFileDir/.cache_${hash(cwd)}`)), "the cache for eslint should have been created");
                });

                it("should create the cache file inside existing cacheLocation directory when cacheLocation ends with a slash", async () => {
                    assert(!shell.test("-d", path.resolve(cwd, "./tmp/.cacheFileDir/")), "the cache directory already exists and wasn't successfully deleted");

                    fs.mkdirSync(path.resolve(cwd, "./tmp/.cacheFileDir/"));

                    eslint = new FlatESLint({
                        overrideConfigFile: true,
                        cwd,

                        // specifying cache true the cache will be created
                        cache: true,
                        cacheLocation: "./tmp/.cacheFileDir/",
                        overrideConfig: {
                            rules: {
                                "no-console": 0,
                                "no-unused-vars": 2
                            }
                        },