* test: check invalid chunk error for readable.push
Test that passing invalid chunks to readable.push() in
non-object mode throw errors.
* test: add simple object mode + decoder stream test
* test: add test for readable stream lacking _read
Check that using a readable stream without a _read method will throw
an error.
* test: add basic test for piping to multiple dests
Add a simple test for piping and unpiping from a readable stream
to multiple writable streams.
PR-URL: https://github.com/nodejs/node/pull/7260
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
