import sys
from compiler import BprotoCompiler
sys.path.append('src/')

from errors import BprotoCompilerError
from backend.rendering.txtBackend import TxtBackendRenderer
from backend.fsOutput import BackendFileSystemOutput


def test_compiler_txt_against_ref():
    with open("test/test_protocol.bproto") as f:
        source_text = f.read()

    # Comile Stuff
    compiler = BprotoCompiler([
        TxtBackendRenderer(".")
    ], "template")

    try:
        output: BackendFileSystemOutput = compiler.compile(source_text, ".")
    except BprotoCompilerError:
        assert False, "This should run througth"
    
    string_output = output.toString()
    output.saveToDisk("test/backend_output/txt")

    # Load Refernces
    with open("test/reference/txt/protocolSummary.txt") as f:
        expected_output = f.read()

    assert isinstance(string_output.get("protocolSummary.txt"), str)
    assert string_output.get("protocolSummary.txt") == expected_output