append("<title>Gradle @version@ Release Notes</title>").
                append("<link rel='stylesheet' type='text/css' href='https://assets.gradle.com/lato/css/lato-font.css'/>");
        addCssToHead(document);
        addJavascriptToHead(document);

        wrapH2InSectionTopic(document);
        addAnchorsForHeadings(document);

        leftoverFiles.forEach {
            assertTrue(projectDir.resolve(it).walk().filter { it.isFile }.toList().isEmpty())
        }
    }

    @Test
    fun `fail build if leftover file found and test passes`() {
        val result = run(":successful-test-with-leftover:test", "--no-watch-fs").buildAndFail()
        assertEquals(TaskOutcome.SUCCESS, result.task(":successful-test-with-leftover:test")!!.outcome)