kconfig: tests: check visibility of tristate choice values in y choice

If tristate choice values depend on symbols set to 'm', they should be
hidden when the choice containing them is changed from 'm' to 'y'
(i.e. exclusive choice).

This issue was fixed by commit fa64e5f6a3 ("kconfig/symbol.c: handle
choice_values that depend on 'm' symbols").

Add a test case to avoid regression.

For the input in this unit test, there is a room for argument if
"# CONFIG_CHOICE1 is not set" should be written to the .config file.

After commit fa64e5f6a3, this line was written to the .config file.

With commit cb67ab2cd2 ("kconfig: do not write choice values when
their dependency becomes n"), it is not written now.

In this test, "# CONFIG_CHOICE1 is not set" is don't care.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
This commit is contained in:
Masahiro Yamada 2018-03-13 18:12:08 +09:00
parent 930c429a65
commit ee23661065
5 changed files with 43 additions and 0 deletions

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@ -0,0 +1,19 @@
config MODULES
def_bool y
option modules
config DEP
tristate
default m
choice
prompt "Tristate Choice"
config CHOICE0
tristate "Choice 0"
config CHOICE1
tristate "Choice 1"
depends on DEP
endchoice

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@ -0,0 +1,15 @@
"""
Hide tristate choice values with mod dependency in y choice.
If tristate choice values depend on symbols set to 'm', they should be
hidden when the choice containing them is changed from 'm' to 'y'
(i.e. exclusive choice).
Related Linux commit: fa64e5f6a35efd5e77d639125d973077ca506074
"""
def test(conf):
assert conf.oldaskconfig('config', 'y') == 0
assert conf.config_contains('expected_config')
assert conf.stdout_contains('expected_stdout')

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CONFIG_CHOICE0=m
CONFIG_CHOICE1=m

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CONFIG_MODULES=y
CONFIG_DEP=m
CONFIG_CHOICE0=y

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Tristate Choice [M/y/?] y
Tristate Choice
> 1. Choice 0 (CHOICE0)
choice[1]: 1