lock.updateFile {}

        then:
        thrown FileIntegrityViolationException
    }

    def "writeFile does not throw integrity exception when not cleanly unlocked file"() {
        given:
        unlockUncleanly()

        when:
        createLock(Exclusive).writeFile {}

        then:
        notThrown FileIntegrityViolationException
    }

    def "can lock a file"() {

        then:
        1 * fileAccess.writeFile(!null) >> { Runnable action -> action.run() }
        1 * backingCache.put("key", "value")
        0 * _._
    }

    def "holds write lock while removing entry from cache"() {
        given:
        cacheOpened()

        when:
        cache.remove("key")

        then:
        1 * fileAccess.writeFile(!null) >> { Runnable action -> action.run() }

        // Use writeFile because the cache can internally recover from datafile
        // corruption, so we don't care at this level if it's corrupt
        fileAccess.writeFile(() -> cache.put(key, value));
    }

    @Override
    public void remove(final K key) {
        final BTreePersistentIndexedCache<K, V> cache = getCache();
        // Use writeFile because the cache can internally recover from datafile

            if (buildArtifacts) {
                files.each {
                    writeFile("file-file", writer, it)
                }
                files.filter { true }.each {
                    writeFile("file-filtered", writer, it)
                }

                incomingFiles.each {
                    writeFile("incoming-file", writer, it)
                }
                incomingArtifacts.each {

		os.RemoveAll(dir)
		log.Fatal(err)
	}
	tmpdir = dir

	writeFile("p1.go", `
		package p1

		func F() {
			println("hello from p1")
		}
	`)
	writeFile("p2.go", `
		package p2

		import "./p1"

		func F() {
			p1.F()
			println("hello from p2")
		}

		func main() {}
	`)
	writeFile("p3.go", `
		package main

		import "./p2"

		func main() {
			p2.F()

        given:
        def lockManager = new DefaultFileLockManager(metaDataProvider, contentionHandler)
        writeFile(lockManager)

        and:
        def lock = createLock(lockMode)
        def beforeUpdate = lock.state
        lock.close()

        and:
        writeFile(lockManager)
        writeFile(lockManager)

        when:
        lock = createLock(lockMode)
        def afterUpdate = lock.state

fun Encoder.writeDefaultClassPath(classPath: ClassPath) {
    writeCollection(classPath.asFiles) {
        writeFile(it)
    }
}


internal
fun Encoder.writeTransformedClassPath(classPath: TransformedClassPath) {
    writeCollection(classPath.asFiles.zip(classPath.asTransformedFiles)) {
        writeFile(it.first)
        writeFile(it.second)
    }
}


internal
fun Decoder.readClassPath(): ClassPath {

	return os.ReadFile(filename)
}

// WriteFile writes data to a file named by filename.
// If the file does not exist, WriteFile creates it with permissions perm
// (before umask); otherwise WriteFile truncates it before writing, without changing permissions.
//
// Deprecated: As of Go 1.16, this function simply calls [os.WriteFile].
func WriteFile(filename string, data []byte, perm fs.FileMode) error {

	}
	defer os.RemoveAll(tempDir)
	filename := filepath.Join(tempDir, "blurp.txt")

	shmorp := []byte("shmorp")
	florp := []byte("florp")
	err = WriteFile(filename, shmorp, 0444)
	if err != nil {
		t.Fatalf("WriteFile %s: %v", filename, err)
	}
	err = WriteFile(filename, florp, 0444)
	if err == nil {
		t.Fatalf("Expected an error when writing to read-only file %s", filename)
	}
	got, err := ReadFile(filename)

        writeFile(settingsFile, "rootProject.name = 'hello-world'");
        String buildFileContent = "task helloWorld {" +
                                  "    doLast {" +
                                  "        println 'Hello world!'" +
                                  "    }" +
                                  "}";
        writeFile(buildFile, buildFileContent);