static void assert_start(skiatest::Reporter* reporter, const SkReader32& reader) {
REPORTER_ASSERT(reporter, 0 == reader.offset());
REPORTER_ASSERT(reporter, reader.size() == reader.available());
REPORTER_ASSERT(reporter, reader.isAvailable(reader.size()));
REPORTER_ASSERT(reporter, !reader.isAvailable(reader.size() + 1));
REPORTER_ASSERT(reporter, reader.peek() == reader.base());
}
static void assert_empty(skiatest::Reporter* reporter, const SkReader32& reader) {
REPORTER_ASSERT(reporter, 0 == reader.size());
REPORTER_ASSERT(reporter, 0 == reader.offset());
REPORTER_ASSERT(reporter, 0 == reader.available());
REPORTER_ASSERT(reporter, !reader.isAvailable(1));
assert_eof(reporter, reader);
assert_start(reporter, reader);
}