kconfig: test: add Kconfig macro language tests

Here are the test cases I used for developing the text expansion feature.

Masahiro Yamada committed 8 years ago

Commit 2bece881 parent 316d55d13 files · +191 −0Browse files

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@@ -0,0 +1,27 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	# 'info' prints the argument to stdout.
	4	$(info,hello world 0)
	5
	6	# 'warning-if', if the first argument is y, sends the second argument to stderr,
	7	# and the message is prefixed with the current file name and line number.
	8	$(warning-if,y,hello world 1)
	9
	10	# 'error-if' is similar, but it terminates the parsing immediately.
	11	# The following is just no-op since the first argument is not y.
	12	$(error-if,n,this should not be printed)
	13
	14	# Shorthand
	15	warning = $(warning-if,y,$(1))
	16
	17	# 'shell' executes a command, and returns its stdout.
	18	$(warning,$(shell,echo hello world 3))
	19
	20	# Every newline in the output is replaced with a space,
	21	# but any trailing newlines are deleted.
	22	$(warning,$(shell,printf 'hello\nworld\n\n4\n\n\n'))
	23
	24	# 'filename' is expanded to the currently parsed file name,
	25	# 'lineno' to the line number.
	26	$(warning,filename=$(filename))
	27	$(warning,lineno=$(lineno))

@@ -0,0 +1,9 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2	"""
	3	Built-in function tests.
	4	"""
	5
	6	def test(conf):
	7	assert conf.oldaskconfig() == 0
	8	assert conf.stdout_contains('expected_stdout')
	9	assert conf.stderr_matches('expected_stderr')

@@ -0,0 +1 @@
		1	hello world 0

@@ -0,0 +1,11 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2	"""
	3	Detect circular variable expansion.
	4
	5	If a recursively expanded variable references itself (eventually),
	6	it should fail with an error message.
	7	"""
	8
	9	def test(conf):
	10	assert conf.oldaskconfig() != 0
	11	assert conf.stderr_matches('expected_stderr')

@@ -0,0 +1 @@
		1	Kconfig:5: Recursive variable 'X' references itself (eventually)

@@ -0,0 +1,44 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	# Shorthand
	4	warning = $(warning-if,y,$(1))
	5
	6	# You can not pass commas directly to a function since they are treated as
	7	# delimiters. You can use the following trick to do so.
	8	comma := ,
	9	$(warning,hello$(comma) world)
	10
	11	# Like Make, single quotes, double quotes, spaces are treated verbatim.
	12	# The following prints the text as-is.
	13	$(warning, ' " '" ' ''' "'")
	14
	15	# Unlike Make, '$' has special meaning only when it is followed by '('.
	16	# No need to escape '$' itself.
	17	$(warning,$)
	18	$(warning,$$)
	19	$ := 1
	20	$(warning,$($))
	21
	22	# You need a trick to escape '$' followed by '('
	23	# The following should print "$(X)". It should not be expanded further.
	24	dollar := $
	25	$(warning,$(dollar)(X))
	26
	27	# You need a trick to treat unbalanced parentheses.
	28	# The following should print "(".
	29	left_paren := (
	30	$(warning,$(left_paren))
	31
	32	# A simple expanded should not be expanded multiple times.
	33	# The following should print "$(X)". It should not be expanded further.
	34	Y := $(dollar)(X)
	35	$(warning,$(Y))
	36
	37	# The following should print "$(X)" as well.
	38	Y = $(dollar)(X)
	39	$(warning,$(Y))
	40
	41	# The following should print "$(".
	42	# It should not be emit "unterminated reference" error.
	43	unterminated := $(dollar)(
	44	$(warning,$(unterminated))

@@ -0,0 +1,8 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2	"""
	3	Escape sequence tests.
	4	"""
	5
	6	def test(conf):
	7	assert conf.oldaskconfig() == 0
	8	assert conf.stderr_matches('expected_stderr')

@@ -0,0 +1,53 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2
	3	# Shorthand
	4	warning = $(warning-if,y,$(1))
	5
	6	# Simply expanded variable.
	7	X := 1
	8	SIMPLE := $(X)
	9	X := 2
	10	$(warning,SIMPLE = $(SIMPLE))
	11
	12	# Recursively expanded variable.
	13	X := 1
	14	RECURSIVE = $(X)
	15	X := 2
	16	$(warning,RECURSIVE = $(RECURSIVE))
	17
	18	# Append something to a simply expanded variable.
	19	Y := 3
	20	SIMPLE += $(Y)
	21	Y := 4
	22	$(warning,SIMPLE = $(SIMPLE))
	23
	24	# Append something to a recursively expanded variable.
	25	Y := 3
	26	RECURSIVE += $(Y)
	27	Y := 4
	28	$(warning,RECURSIVE = $(RECURSIVE))
	29
	30	# Use += operator to an undefined variable.
	31	# This works as a recursively expanded variable.
	32	Y := 3
	33	UNDEFINED_VARIABLE += $(Y)
	34	Y := 4
	35	$(warning,UNDEFINED_VARIABLE = $(UNDEFINED_VARIABLE))
	36
	37	# You can use variable references for the lefthand side of assignment statement.
	38	X := A
	39	Y := B
	40	$(X)$(Y) := 5
	41	$(warning,AB = $(AB))
	42
	43	# User-defined function.
	44	greeting = $(1), my name is $(2).
	45	$(warning,$(greeting,Hello,John))
	46
	47	# The number of arguments is not checked for user-defined functions.
	48	# If some arguments are optional, it is useful to pass fewer parameters.
	49	# $(2) will be blank in this case.
	50	$(warning,$(greeting,Hello))
	51
	52	# Unreferenced parameters are just ignored.
	53	$(warning,$(greeting,Hello,John,ignored,ignored))

@@ -0,0 +1,8 @@
	1	# SPDX-License-Identifier: GPL-2.0
	2	"""
	3	Variable and user-defined function tests.
	4	"""
	5
	6	def test(conf):
	7	assert conf.oldaskconfig() == 0
	8	assert conf.stderr_matches('expected_stderr')