kconfig: tests: test if recursive dependencies are detected

Recursive dependency should be detected and warned.  Test this.

This indirectly tests the line number increments.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>

diff --git a/scripts/kconfig/tests/warn_recursive_dep/Kconfig b/scripts/kconfig/tests/warn_recursive_dep/Kconfig
new file mode 100644 (file)
index 0000000..a65bfcb
--- /dev/null
+++ b/scripts/kconfig/tests/warn_recursive_dep/Kconfig
@@ -0,0 +1,62 @@
+# depends on itself
+
+config A
+       bool "A"
+       depends on A
+
+# select itself
+
+config B
+       bool
+       select B
+
+# depends on each other
+
+config C1
+       bool "C1"
+       depends on C2
+
+config C2
+       bool "C2"
+       depends on C1
+
+# depends on and select
+
+config D1
+       bool "D1"
+       depends on D2
+       select D2
+
+config D2
+       bool
+
+# depends on and imply
+# This is not recursive dependency
+
+config E1
+       bool "E1"
+       depends on E2
+       imply E2
+
+config E2
+       bool "E2"
+
+# property
+
+config F1
+       bool "F1"
+       default F2
+
+config F2
+       bool "F2"
+       depends on F1
+
+# menu
+
+menu "menu depending on its content"
+       depends on G
+
+config G
+       bool "G"
+
+endmenu

diff --git a/scripts/kconfig/tests/warn_recursive_dep/__init__.py b/scripts/kconfig/tests/warn_recursive_dep/__init__.py
new file mode 100644 (file)
index 0000000..adb2195
--- /dev/null
+++ b/scripts/kconfig/tests/warn_recursive_dep/__init__.py
@@ -0,0 +1,9 @@
+"""
+Warn recursive inclusion.
+
+Recursive dependency should be warned.
+"""
+
+def test(conf):
+    assert conf.oldaskconfig() == 0
+    assert conf.stderr_contains('expected_stderr')

diff --git a/scripts/kconfig/tests/warn_recursive_dep/expected_stderr b/scripts/kconfig/tests/warn_recursive_dep/expected_stderr
new file mode 100644 (file)
index 0000000..3de807d
--- /dev/null
+++ b/scripts/kconfig/tests/warn_recursive_dep/expected_stderr
@@ -0,0 +1,30 @@
+Kconfig:9:error: recursive dependency detected!
+Kconfig:9:     symbol B is selected by B
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:3:error: recursive dependency detected!
+Kconfig:3:     symbol A depends on A
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:15:error: recursive dependency detected!
+Kconfig:15:    symbol C1 depends on C2
+Kconfig:19:    symbol C2 depends on C1
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:30:error: recursive dependency detected!
+Kconfig:30:    symbol D2 is selected by D1
+Kconfig:25:    symbol D1 depends on D2
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:59:error: recursive dependency detected!
+Kconfig:59:    symbol G depends on G
+For a resolution refer to Documentation/kbuild/kconfig-language.txt
+subsection "Kconfig recursive dependency limitations"
+
+Kconfig:50:error: recursive dependency detected!
+Kconfig:50:    symbol F2 depends on F1
+Kconfig:48:    symbol F1 default value contains F2