Commit 3e4888c2 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

kconfig: tests: test randconfig for choice in choice 



Commit 3b9a19e0 ("kconfig: loop as long as we changed some symbols
in randconfig") fixed randconfig where a choice contains a sub-choice.
Prior to that commit, the sub-choice values were not set.

I am not sure whether this is an intended feature or just something
people discovered works, but it is used in the real world;
drivers/usb/gadget/legacy/Kconfig is source'd in a choice context,
then creates a sub-choice in it.

For the test case in this commit, there are 3 possible results.

Case 1:
  CONFIG_A=y
  # CONFIG_B is not set

Case 2:
  # CONFIG_A is not set
  CONFIG_B=y
  CONFIG_C=y
  # CONFIG_D is not set

Case 3:
  # CONFIG_A is not set
  CONFIG_B=y
  # CONFIG_C is not set
  CONFIG_D=y
  CONFIG_E=y

So, this test iterates several times, and checks if the result is
either of the three.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: default avatarUlf Magnusson <ulfalizer@gmail.com>
parent beaaddb6

scripts/kconfig/tests/rand_nested_choice/Kconfig

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choice

	prompt "choice"



config A

	bool "A"



config B

	bool "B"



if B

choice

	prompt "sub choice"



config C

	bool "C"



config D

	bool "D"



if D

choice

	prompt "subsub choice"



config E

	bool "E"



endchoice

endif # D



endchoice

endif # B



endchoice

scripts/kconfig/tests/rand_nested_choice/__init__.py

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"""

Set random values recursively in nested choices.



Kconfig can create a choice-in-choice structure by using 'if' statement.

randconfig should correctly set random choice values.



Related Linux commit: 3b9a19e08960e5cdad5253998637653e592a3c29

"""





def test(conf):

    for i in range(20):

        assert conf.randconfig() == 0

        assert (conf.config_contains('expected_stdout0') or

                conf.config_contains('expected_stdout1') or

                conf.config_contains('expected_stdout2'))

scripts/kconfig/tests/rand_nested_choice/expected_stdout0

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CONFIG_A=y

# CONFIG_B is not set

scripts/kconfig/tests/rand_nested_choice/expected_stdout1

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# CONFIG_A is not set

CONFIG_B=y

CONFIG_C=y

# CONFIG_D is not set

scripts/kconfig/tests/rand_nested_choice/expected_stdout2

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# CONFIG_A is not set

CONFIG_B=y

# CONFIG_C is not set

CONFIG_D=y

CONFIG_E=y

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