This is a testharness.js-based test.
PASS ReadableStream teeing: rs.tee() returns an array of two ReadableStreams
PASS ReadableStream teeing: should be able to read one branch to the end without affecting the other
PASS ReadableStream teeing: values should be equal across each branch
PASS ReadableStream teeing: errors in the source should propagate to both branches
PASS ReadableStream teeing: canceling branch1 should not impact branch2
PASS ReadableStream teeing: canceling branch2 should not impact branch1
PASS ReadableStream teeing: canceling both branches should aggregate the cancel reasons into an array
PASS ReadableStream teeing: canceling both branches in reverse order should aggregate the cancel reasons into an array
PASS ReadableStream teeing: failing to cancel the original stream should cause cancel() to reject on branches
PASS ReadableStream teeing: erroring a teed stream should properly handle canceled branches
PASS ReadableStream teeing: erroring a teed stream should error both branches
PASS ReadableStream teeing: closing the original should immediately close the branches
PASS ReadableStream teeing: erroring the original should immediately error the branches
PASS ReadableStream teeing: canceling branch1 should finish when branch2 reads until end of stream
PASS ReadableStream teeing: canceling branch1 should finish when original stream errors
PASS ReadableStreamTee should not use a modified ReadableStream constructor from the global object
FAIL ReadableStreamTee should not pull more chunks than can fit in the branch queue assert_array_equals: pull should only be called once lengths differ, expected array ["pull"] length 1, got ["pull", "pull"] length 2
PASS ReadableStreamTee should only pull enough to fill the emptiest queue
PASS ReadableStreamTee should not pull when original is already errored
FAIL ReadableStreamTee stops pulling when original stream errors while branch 1 is reading assert_array_equals: pull should be called once lengths differ, expected array ["pull"] length 1, got ["pull", "pull"] length 2
FAIL ReadableStreamTee stops pulling when original stream errors while branch 2 is reading assert_array_equals: pull should be called once lengths differ, expected array ["pull"] length 1, got ["pull", "pull"] length 2
FAIL ReadableStreamTee stops pulling when original stream errors while both branches are reading assert_array_equals: pull should be called once lengths differ, expected array ["pull"] length 1, got ["pull", "pull"] length 2
Harness: the test ran to completion.