Function test_set_expression

tests/debugpy/test_evaluate.py:577–617

(pyfile, target, run)

def test_set_expression(pyfile, target, run):
    @pyfile
    def code_to_debug():
        import debuggee
        from debuggee import backchannel

        debuggee.setup()
        a = 1
        backchannel.send(a)  # @bp

    with debug.Session() as session:
        backchannel = session.open_backchannel()
        with run(session, target(code_to_debug)):
            session.set_breakpoints(code_to_debug, all)

        stop = session.wait_for_stop()
        scopes = session.request("scopes", {"frameId": stop.frame_id})["scopes"]
        globals_ref = scopes[0]["variablesReference"]

        vars = session.request("variables", {"variablesReference": globals_ref})[
            "variables"
        ]
        (a,) = (v for v in vars if v["name"] == "a")
        assert a == some.dict.containing(
            {
                "type": "int",
                "value": "1",
                "name": "a",
                "evaluateName": "a",
                "variablesReference": 0,
            }
        )

        set_a = session.request(
            "setExpression",
            {"frameId": stop.frame_id, "expression": "a", "value": "1000"},
        )
        assert set_a == some.dict.containing({"type": "int", "value": "1000"})

        session.request_continue()
        assert backchannel.receive() == 1000


def test_evaluate_thread_locks(pyfile, target, run):