fix(tests): remove import conftest

Importing from conftest caused an ImportError in test_cli.py, when the
second conftest.py is created.

conftest.py is a pytest magic module, it is most commonly used
for defining fixtures. The fixtures defined there are made available
to tests via dependency injection in parameters, not via importing them.

TestHandler was moved to tests/test_cli.py from tests/conftest.py

Author: e3krisztian

tests/conftest.py

@@ -2,23 +2,13 @@
 
 import pytest
 
-from unblob.extractors import Command
-from unblob.models import Handler, HexString, Task, TaskResult
+from unblob.models import Task, TaskResult
 from unblob.testing import (  # noqa: F401 (module imported but unused)
     configure_logging,
     extraction_config,
 )
 
 
-class TestHandler(Handler):
-    NAME = "test_handler"
-    PATTERNS = [HexString("21 3C")]
-    EXTRACTOR = Command("testcommand", "for", "test", "handler")
-
-    def calculate_chunk(self, *args, **kwargs):
-        pass
-
-
 @pytest.fixture
 def task_result():
     task = Task(Path("/nonexistent"), 0)

tests/test_cli.py

@@ -4,14 +4,23 @@
 
 import pytest
 from click.testing import CliRunner
-from conftest import TestHandler
 
 import unblob.cli
 from unblob.extractors import Command
 from unblob.handlers import BUILTIN_HANDLERS
+from unblob.models import Handler, HexString
 from unblob.processing import DEFAULT_DEPTH, DEFAULT_PROCESS_NUM, ExtractionConfig
 
 
+class TestHandler(Handler):
+    NAME = "test_handler"
+    PATTERNS = [HexString("21 3C")]
+    EXTRACTOR = Command("testcommand", "for", "test", "handler")
+
+    def calculate_chunk(self, *args, **kwargs):
+        pass
+
+
 class ExistingCommandHandler(TestHandler):
     EXTRACTOR = Command("sh", "something")