buildman: Perform tests in a temporary directory

We may not always be able to write to the default output directory so
have a temporary directory for our output be created.

Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: NStephen Warren <swarren@wwwdotorg.org>
Suggested-by: NStephen Warren <swarren@wwwdotorg.org>
Signed-off-by: NTom Rini <trini@konsulko.com>

tools/buildman/func_test.py

@@ -175,6 +175,7 @@ class TestFunctional(unittest.TestCase):
     """
     def setUp(self):
         self._base_dir = tempfile.mkdtemp()
+        self._output_dir = tempfile.mkdtemp()
         self._git_dir = os.path.join(self._base_dir, 'src')
         self._buildman_pathname = sys.argv[0]
         self._buildman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
@@ -207,6 +208,7 @@ class TestFunctional(unittest.TestCase):
 
     def tearDown(self):
         shutil.rmtree(self._base_dir)
+        shutil.rmtree(self._output_dir)
 
     def setupToolchains(self):
         self._toolchains = toolchain.Toolchains()
@@ -421,7 +423,7 @@ class TestFunctional(unittest.TestCase):
     def testCurrentSource(self):
         """Very simple test to invoke buildman on the current source"""
         self.setupToolchains();
-        self._RunControl()
+        self._RunControl('-o', self._output_dir)
         lines = terminal.GetPrintTestLines()
         self.assertIn('Building current source for %d boards' % len(boards),
                       lines[0].text)
@@ -434,7 +436,7 @@ class TestFunctional(unittest.TestCase):
     def testBadToolchain(self):
         """Test that missing toolchains are detected"""
         self.setupToolchains();
-        ret_code = self._RunControl('-b', TEST_BRANCH)
+        ret_code = self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir)
         lines = terminal.GetPrintTestLines()
 
         # Buildman always builds the upstream commit as well
@@ -458,13 +460,13 @@ class TestFunctional(unittest.TestCase):
 
     def testBranch(self):
         """Test building a branch with all toolchains present"""
-        self._RunControl('-b', TEST_BRANCH)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir)
         self.assertEqual(self._builder.count, self._total_builds)
         self.assertEqual(self._builder.fail, 0)
 
     def testCount(self):
         """Test building a specific number of commitst"""
-        self._RunControl('-b', TEST_BRANCH, '-c2')
+        self._RunControl('-b', TEST_BRANCH, '-c2', '-o', self._output_dir)
         self.assertEqual(self._builder.count, 2 * len(boards))
         self.assertEqual(self._builder.fail, 0)
         # Each board has a mrproper, config, and then one make per commit
@@ -472,34 +474,34 @@ class TestFunctional(unittest.TestCase):
 
     def testIncremental(self):
         """Test building a branch twice - the second time should do nothing"""
-        self._RunControl('-b', TEST_BRANCH)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir)
 
         # Each board has a mrproper, config, and then one make per commit
         self.assertEqual(self._make_calls, len(boards) * (self._commits + 2))
         self._make_calls = 0
-        self._RunControl('-b', TEST_BRANCH, clean_dir=False)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir, clean_dir=False)
         self.assertEqual(self._make_calls, 0)
         self.assertEqual(self._builder.count, self._total_builds)
         self.assertEqual(self._builder.fail, 0)
 
     def testForceBuild(self):
         """The -f flag should force a rebuild"""
-        self._RunControl('-b', TEST_BRANCH)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir)
         self._make_calls = 0
-        self._RunControl('-b', TEST_BRANCH, '-f', clean_dir=False)
+        self._RunControl('-b', TEST_BRANCH, '-f', '-o', self._output_dir, clean_dir=False)
         # Each board has a mrproper, config, and then one make per commit
         self.assertEqual(self._make_calls, len(boards) * (self._commits + 2))
 
     def testForceReconfigure(self):
         """The -f flag should force a rebuild"""
-        self._RunControl('-b', TEST_BRANCH, '-C')
+        self._RunControl('-b', TEST_BRANCH, '-C', '-o', self._output_dir)
         # Each commit has a mrproper, config and make
         self.assertEqual(self._make_calls, len(boards) * self._commits * 3)
 
     def testErrors(self):
         """Test handling of build errors"""
         self._error['board2', 1] = 'fred\n'
-        self._RunControl('-b', TEST_BRANCH)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir)
         self.assertEqual(self._builder.count, self._total_builds)
         self.assertEqual(self._builder.fail, 1)
 
@@ -507,13 +509,13 @@ class TestFunctional(unittest.TestCase):
         # not be rebuilt
         del self._error['board2', 1]
         self._make_calls = 0
-        self._RunControl('-b', TEST_BRANCH, clean_dir=False)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir, clean_dir=False)
         self.assertEqual(self._builder.count, self._total_builds)
         self.assertEqual(self._make_calls, 0)
         self.assertEqual(self._builder.fail, 1)
 
         # Now use the -F flag to force rebuild of the bad commit
-        self._RunControl('-b', TEST_BRANCH, '-F', clean_dir=False)
+        self._RunControl('-b', TEST_BRANCH, '-o', self._output_dir, '-F', clean_dir=False)
         self.assertEqual(self._builder.count, self._total_builds)
         self.assertEqual(self._builder.fail, 0)
         self.assertEqual(self._make_calls, 3)