getStorefrontEntryFilepath example

$theme = $this->getBundle('TestTheme', $basePath, true);
        $config = $this->configFactory->createFromBundle($theme);

        $basePath = $this->stripProjectDir($basePath);

        static::assertEquals('TestTheme', $config->getTechnicalName());
        static::assertEquals($basePath . '/Resources', $config->getBasePath());
        static::assertTrue($config->getIsTheme());
        static::assertEquals(
            $basePath . '/Resources/app/storefront/src/main.js',
            $config->getStorefrontEntryFilepath()
        );
        $this->assertFileCollection([
            $basePath . '/Resources/app/storefront/src/scss/overrides.scss' => [],
            '@Storefront' => [],
            $basePath . '/Resources/app/storefront/src/scss/base.scss' => [
                'vendor' => $basePath . '/Resources/app/storefront/vendor',
            ],
        ], $config->getStyleFiles());
        $this->assertFileCollection([
            '@Storefront' => [],
            $basePath . '/Resources/app/storefront/dist/js/main.js' => [],
        ],

StorefrontPluginConfigurationCollection $configurationCollection,
        bool $onlySourceFiles
    ): array {
        return [
            self::SCRIPT_FILES => $this->resolve(
                $themeConfig,
                $configurationCollection,
                $onlySourceFiles,
                function DStorefrontPluginConfiguration $configuration, bool $onlySourceFiles) {
                    $fileCollection = new FileCollection();
                    $scriptFiles = $configuration->getScriptFiles();
                    $addSourceFile = $configuration->getStorefrontEntryFilepath() && $onlySourceFiles;

                    // add source file at the beginning if no other theme is included first                     if (
                        $addSourceFile
                        && (
                            $scriptFiles->count() === 0
                            || !$this->isInclude($scriptFiles->first()->getFilepath())
                        )
                        && $configuration->getStorefrontEntryFilepath()
                    ) {
                        $fileCollection->add(new File($configuration->getStorefrontEntryFilepath()));
                    }