kunit: tool: drop last uses of collections.namedtuple

Since we formally require python3.7+ since commit df4b0807ca1a
("kunit: tool: Assert the version requirement"), we can just use
@dataclasses.dataclass instead.

In kunit_config.py, we used namedtuple to create a hashable type that
had `name` and `value` fields and had to subclass it to define a custom
`__str__()`.
@datalcass lets us just define one type instead.

In qemu_config.py, we use namedtuple to allow modules to define various
parameters. Using @dataclass, we can add type-annotations for all these
fields, making our code more typesafe and making it easier for users to
figure out how to define new configs.

Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/tools/testing/kunit/kunit_config.py b/tools/testing/kunit/kunit_config.py
index 677354546156..ca33e4b7bcc5 100644
--- a/tools/testing/kunit/kunit_config.py
+++ b/tools/testing/kunit/kunit_config.py
@@ -6,16 +6,17 @@
 # Author: Felix Guo <felixguoxiuping@gmail.com>
 # Author: Brendan Higgins <brendanhiggins@google.com>
 
-import collections
+from dataclasses import dataclass
 import re
 from typing import List, Set
 
 CONFIG_IS_NOT_SET_PATTERN = r'^# CONFIG_(\w+) is not set$'
 CONFIG_PATTERN = r'^CONFIG_(\w+)=(\S+|".*")$'
 
-KconfigEntryBase = collections.namedtuple('KconfigEntryBase', ['name', 'value'])
-
-class KconfigEntry(KconfigEntryBase):
+@dataclass(frozen=True)
+class KconfigEntry:
+	name: str
+	value: str
 
 	def __str__(self) -> str:
 		if self.value == 'n':