diff --git a/tools/binman/elf_test.py b/tools/binman/elf_test.py
index c16f71401d1..b68530c19ba 100644
--- a/tools/binman/elf_test.py
+++ b/tools/binman/elf_test.py
@@ -10,6 +10,7 @@ import unittest
 
 import elf
 import test_util
+import tools
 
 binman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
 
@@ -46,6 +47,10 @@ class FakeSection:
 
 
 class TestElf(unittest.TestCase):
+    @classmethod
+    def setUpClass(self):
+        tools.SetInputDirs(['.'])
+
     def testAllSymbols(self):
         """Test that we can obtain a symbol from the ELF file"""
         fname = os.path.join(binman_dir, 'test', 'u_boot_ucode_ptr')
diff --git a/tools/binman/entry_test.py b/tools/binman/entry_test.py
index 6fa735ed596..94c4aba88a1 100644
--- a/tools/binman/entry_test.py
+++ b/tools/binman/entry_test.py
@@ -14,9 +14,14 @@ import fdt_util
 import tools
 
 class TestEntry(unittest.TestCase):
+    def setUp(self):
+        tools.PrepareOutputDir(None)
+
+    def tearDown(self):
+        tools.FinaliseOutputDir()
+
     def GetNode(self):
         binman_dir = os.path.dirname(os.path.realpath(sys.argv[0]))
-        tools.PrepareOutputDir(None)
         fname = fdt_util.EnsureCompiled(
             os.path.join(binman_dir,('test/05_simple.dts')))
         dtb = fdt.FdtScan(fname)
@@ -35,7 +40,6 @@ class TestEntry(unittest.TestCase):
         global entry
         reload(entry)
         entry.Entry.Create(None, self.GetNode(), 'u-boot-spl')
-        tools._RemoveOutputDir()
         del entry
 
     def testEntryContents(self):
diff --git a/tools/binman/fdt_test.py b/tools/binman/fdt_test.py
index 8ea098f38ae..b9167012d25 100644
--- a/tools/binman/fdt_test.py
+++ b/tools/binman/fdt_test.py
@@ -21,6 +21,10 @@ class TestFdt(unittest.TestCase):
         self._indir = tempfile.mkdtemp(prefix='binmant.')
         tools.PrepareOutputDir(self._indir, True)
 
+    @classmethod
+    def tearDownClass(self):
+        tools._FinaliseForTest()
+
     def TestFile(self, fname):
         return os.path.join(self._binman_dir, 'test', fname)
 
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index aafdaff9700..92e780e95ef 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -102,7 +102,6 @@ class TestFunctional(unittest.TestCase):
         TestFunctional._MakeInputFile('ecrw.bin', CROS_EC_RW_DATA)
         TestFunctional._MakeInputDir('devkeys')
         TestFunctional._MakeInputFile('bmpblk.bin', BMPBLK_DATA)
-        self._output_setup = False
 
         # ELF file with a '_dt_ucode_base_size' symbol
         with open(self.TestFile('u_boot_ucode_ptr')) as fd:
@@ -203,14 +202,13 @@ class TestFunctional(unittest.TestCase):
         Returns:
             Contents of device-tree binary
         """
-        if not self._output_setup:
-            tools.PrepareOutputDir(self._indir, True)
-            self._output_setup = True
+        tools.PrepareOutputDir(None)
         dtb = fdt_util.EnsureCompiled(self.TestFile(fname))
         with open(dtb) as fd:
             data = fd.read()
             TestFunctional._MakeInputFile(outfile, data)
-            return data
+        tools.FinaliseOutputDir()
+        return data
 
     def _DoReadFileDtb(self, fname, use_real_dtb=False, map=False,
                        update_dtb=False, entry_args=None):
diff --git a/tools/dtoc/test_fdt.py b/tools/dtoc/test_fdt.py
index e88d19f80ef..92c81df1178 100755
--- a/tools/dtoc/test_fdt.py
+++ b/tools/dtoc/test_fdt.py
@@ -60,7 +60,7 @@ class TestFdt(unittest.TestCase):
 
     @classmethod
     def tearDownClass(cls):
-        tools._FinaliseForTest()
+        tools.FinaliseOutputDir()
 
     def setUp(self):
         self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
@@ -128,7 +128,7 @@ class TestNode(unittest.TestCase):
 
     @classmethod
     def tearDownClass(cls):
-        tools._FinaliseForTest()
+        tools.FinaliseOutputDir()
 
     def setUp(self):
         self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
@@ -209,7 +209,7 @@ class TestProp(unittest.TestCase):
 
     @classmethod
     def tearDownClass(cls):
-        tools._FinaliseForTest()
+        tools.FinaliseOutputDir()
 
     def setUp(self):
         self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
@@ -362,6 +362,10 @@ class TestFdtUtil(unittest.TestCase):
     def setUpClass(cls):
         tools.PrepareOutputDir(None)
 
+    @classmethod
+    def tearDownClass(cls):
+        tools.FinaliseOutputDir()
+
     def setUp(self):
         self.dtb = fdt.FdtScan('tools/dtoc/dtoc_test_simple.dts')
         self.node = self.dtb.GetNode('/spl-test')
