kunit: tool: fix improper treatment of file location

Commit 01397e8 ("kunit: Fix TabError, remove defconfig code and
handle when there is no kunitconfig") and commit 45ba7a8 ("kunit:
kunit_tool: Separate out config/build/exec/parse") introduced two
closely related issues which built off of each other: they excessively
created the build directory when not present and modified a constant
(constants in Python only exist by convention).

Together these issues broken a number of unit tests for KUnit tool, so
fix them.

Fixed up commit log to fic checkpatch commit description style error.
Shuah Khan <skhan@linuxfoundation.org>

Fixes: 01397e8 ("kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig")
Fixes: 45ba7a8 ("kunit: kunit_tool: Separate out config/build/exec/parse")
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

tools/testing/kunit/kunit.py

@@ -238,12 +238,6 @@ def main(argv, linux=None):
 	if cli_args.subcommand == 'run':
 		if not os.path.exists(cli_args.build_dir):
 			os.mkdir(cli_args.build_dir)
-		kunit_kernel.kunitconfig_path = os.path.join(
-			cli_args.build_dir,
-			kunit_kernel.kunitconfig_path)
-
-		if not os.path.exists(kunit_kernel.kunitconfig_path):
-			create_default_kunitconfig()
 
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree()
@@ -261,12 +255,6 @@ def main(argv, linux=None):
 		if cli_args.build_dir:
 			if not os.path.exists(cli_args.build_dir):
 				os.mkdir(cli_args.build_dir)
-			kunit_kernel.kunitconfig_path = os.path.join(
-				cli_args.build_dir,
-				kunit_kernel.kunitconfig_path)
-
-		if not os.path.exists(kunit_kernel.kunitconfig_path):
-			create_default_kunitconfig()
 
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree()
@@ -283,12 +271,6 @@ def main(argv, linux=None):
 		if cli_args.build_dir:
 			if not os.path.exists(cli_args.build_dir):
 				os.mkdir(cli_args.build_dir)
-			kunit_kernel.kunitconfig_path = os.path.join(
-				cli_args.build_dir,
-				kunit_kernel.kunitconfig_path)
-
-		if not os.path.exists(kunit_kernel.kunitconfig_path):
-			create_default_kunitconfig()
 
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree()
@@ -307,12 +289,6 @@ def main(argv, linux=None):
 		if cli_args.build_dir:
 			if not os.path.exists(cli_args.build_dir):
 				os.mkdir(cli_args.build_dir)
-			kunit_kernel.kunitconfig_path = os.path.join(
-				cli_args.build_dir,
-				kunit_kernel.kunitconfig_path)
-
-		if not os.path.exists(kunit_kernel.kunitconfig_path):
-			create_default_kunitconfig()
 
 		if not linux:
 			linux = kunit_kernel.LinuxSourceTree()

tools/testing/kunit/kunit_tool_test.py

@@ -240,7 +240,7 @@ def tearDown(self):
 		pass
 
 	def test_config_passes_args_pass(self):
-		kunit.main(['config'], self.linux_source_mock)
+		kunit.main(['config', '--build_dir=.kunit'], self.linux_source_mock)
 		assert self.linux_source_mock.build_reconfig.call_count == 1
 		assert self.linux_source_mock.run_kernel.call_count == 0
 
@@ -315,7 +315,7 @@ def test_run_timeout(self):
 
 	def test_run_builddir(self):
 		build_dir = '.kunit'
-		kunit.main(['run', '--build_dir', build_dir], self.linux_source_mock)
+		kunit.main(['run', '--build_dir=.kunit'], self.linux_source_mock)
 		assert self.linux_source_mock.build_reconfig.call_count == 1
 		self.linux_source_mock.run_kernel.assert_called_once_with(
 			build_dir=build_dir, timeout=300)