// that captures the total number of expected writes, then replays the
// execution N times with a manufactured write error at the
// appropriate spot.
func emitToFailingWriter() {
	log.SetPrefix("emitToFailingWriter: ")

	writeStressTest("emit-meta", func(f *failingWriter) error {
		return coverage.WriteMeta(f)
	})
	writeStressTest("emit-counter", func(f *failingWriter) error {

		t.Parallel()
		testEmitToNonexistentDir(t, atomicHarnessPath, dir)
	})
	t.Run("emitToNilWriter", func(t *testing.T) {
		t.Parallel()
		testEmitToNilWriter(t, atomicHarnessPath, dir)
	})
	t.Run("emitToFailingWriter", func(t *testing.T) {
		t.Parallel()
		testEmitToFailingWriter(t, atomicHarnessPath, dir)
	})
	t.Run("emitWithCounterClear", func(t *testing.T) {
		t.Parallel()
		testEmitWithCounterClear(t, atomicHarnessPath, dir)