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https://github.com/kc1awv/rrcd.git
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kc1awv
98 lines
2.5 KiB
Python
98 lines
2.5 KiB
Python
"""Tests for resource transfer functionality."""
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import hashlib
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import os
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from rrcd.codec import decode, encode
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from rrcd.constants import (
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B_RES_ENCODING,
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B_RES_ID,
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B_RES_KIND,
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B_RES_SHA256,
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B_RES_SIZE,
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K_BODY,
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K_SRC,
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K_T,
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RES_KIND_NOTICE,
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T_RESOURCE_ENVELOPE,
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)
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from rrcd.envelope import make_envelope
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def test_resource_envelope_serialization():
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"""Test that resource envelopes can be created and serialized."""
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src = os.urandom(16)
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rid = os.urandom(8)
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payload = b"This is a test payload that is larger than typical MDU"
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sha256 = hashlib.sha256(payload).digest()
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body = {
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B_RES_ID: rid,
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B_RES_KIND: RES_KIND_NOTICE,
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B_RES_SIZE: len(payload),
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B_RES_SHA256: sha256,
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B_RES_ENCODING: "utf-8",
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}
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envelope = make_envelope(
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T_RESOURCE_ENVELOPE,
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src=src,
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room="test",
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body=body,
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)
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# Serialize and deserialize
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encoded = encode(envelope)
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decoded = decode(encoded)
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assert decoded[K_T] == T_RESOURCE_ENVELOPE
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assert decoded[K_SRC] == src
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decoded_body = decoded[K_BODY]
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assert decoded_body[B_RES_ID] == rid
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assert decoded_body[B_RES_KIND] == RES_KIND_NOTICE
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assert decoded_body[B_RES_SIZE] == len(payload)
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assert decoded_body[B_RES_SHA256] == sha256
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assert decoded_body[B_RES_ENCODING] == "utf-8"
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def test_resource_envelope_minimal():
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"""Test resource envelope with minimal required fields."""
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src = os.urandom(16)
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rid = os.urandom(8)
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body = {
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B_RES_ID: rid,
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B_RES_KIND: "blob",
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B_RES_SIZE: 1024,
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}
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envelope = make_envelope(
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T_RESOURCE_ENVELOPE,
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src=src,
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body=body,
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)
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encoded = encode(envelope)
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decoded = decode(encoded)
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decoded_body = decoded[K_BODY]
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assert B_RES_SHA256 not in decoded_body
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assert B_RES_ENCODING not in decoded_body
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assert decoded_body[B_RES_SIZE] == 1024
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def test_sha256_verification():
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"""Test SHA256 hash computation for payload verification."""
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payload = b"Test payload for SHA256 verification"
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expected = hashlib.sha256(payload).digest()
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# Verify we can compute and compare hashes correctly
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computed = hashlib.sha256(payload).digest()
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assert computed == expected
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assert len(computed) == 32
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# Verify mismatch detection
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wrong_payload = b"Different payload"
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wrong_hash = hashlib.sha256(wrong_payload).digest()
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assert wrong_hash != expected
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