diff --git a/pythonFiles/tests/__init__.py b/pythonFiles/tests/__init__.py
index e69de29bb2d1..5b7f7a925cc0 100644
--- a/pythonFiles/tests/__init__.py
+++ b/pythonFiles/tests/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
diff --git a/pythonFiles/tests/__main__.py b/pythonFiles/tests/__main__.py
index 06d6586941e2..e6fa8c12602b 100644
--- a/pythonFiles/tests/__main__.py
+++ b/pythonFiles/tests/__main__.py
@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import os.path
 import sys
 
diff --git a/pythonFiles/tests/run_all.py b/pythonFiles/tests/run_all.py
index cf85310dbd22..1b798db648bb 100644
--- a/pythonFiles/tests/run_all.py
+++ b/pythonFiles/tests/run_all.py
@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 # Replace the "." entry.
 import os.path
 import sys
diff --git a/pythonFiles/tests/test_normalize_for_interpreter.py b/pythonFiles/tests/test_normalize_for_interpreter.py
new file mode 100644
index 000000000000..a54bd9802e8b
--- /dev/null
+++ b/pythonFiles/tests/test_normalize_for_interpreter.py
@@ -0,0 +1,95 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+import pytest
+import textwrap
+
+import normalizeForInterpreter
+
+
+class TestNormalizationScript(object):
+    """Basic unit tests for the normalization script."""
+
+    def test_basicNormalization(self, capsys):
+        src = 'print("this is a test")'
+        normalizeForInterpreter.normalize_lines(src)
+        captured = capsys.readouterr()
+        assert captured.out == src
+
+    def test_moreThanOneLine(self, capsys):
+        src = textwrap.dedent("""\
+            # Some rando comment
+
+            def show_something():
+                print("Something")
+            """
+        )
+        normalizeForInterpreter.normalize_lines(src)
+        captured = capsys.readouterr()
+        assert captured.out == src
+
+    def test_withHangingIndent(self, capsys):
+        src = textwrap.dedent("""\
+            x = 22
+            y = 30
+            z = -10
+            result = x + y + z
+
+            if result == 42:
+                print("The answer to life, the universe, and everything")
+            """
+        )
+        normalizeForInterpreter.normalize_lines(src)
+        captured = capsys.readouterr()
+        assert captured.out == src
+
+    def test_clearOutExtraneousNewlines(self, capsys):
+        src = textwrap.dedent("""\
+            value_x = 22
+
+            value_y = 30
+
+            value_z = -10
+
+            print(value_x + value_y + value_z)
+
+            """
+        )
+        expectedResult = textwrap.dedent("""\
+            value_x = 22
+            value_y = 30
+            value_z = -10
+            print(value_x + value_y + value_z)
+
+            """
+        )
+        normalizeForInterpreter.normalize_lines(src)
+        result = capsys.readouterr()
+        assert result.out == expectedResult
+
+    def test_clearOutExtraLinesAndWhitespace(self, capsys):
+        src = textwrap.dedent("""\
+            if True:
+                x = 22
+
+                y = 30
+
+                z = -10
+
+            print(x + y + z)
+
+            """
+        )
+        expectedResult = textwrap.dedent("""\
+            if True:
+                x = 22
+                y = 30
+                z = -10
+
+            print(x + y + z)
+
+            """
+        )
+        normalizeForInterpreter.normalize_lines(src)
+        result = capsys.readouterr()
+        assert result.out == expectedResult
diff --git a/pythonFiles/tests/testing_tools/__init__.py b/pythonFiles/tests/testing_tools/__init__.py
index e69de29bb2d1..5b7f7a925cc0 100644
--- a/pythonFiles/tests/testing_tools/__init__.py
+++ b/pythonFiles/tests/testing_tools/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
diff --git a/pythonFiles/tests/testing_tools/adapter/__init__.py b/pythonFiles/tests/testing_tools/adapter/__init__.py
index e69de29bb2d1..5b7f7a925cc0 100644
--- a/pythonFiles/tests/testing_tools/adapter/__init__.py
+++ b/pythonFiles/tests/testing_tools/adapter/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
diff --git a/pythonFiles/tests/testing_tools/adapter/test___main__.py b/pythonFiles/tests/testing_tools/adapter/test___main__.py
index 19f42a466941..b5d743e31101 100644
--- a/pythonFiles/tests/testing_tools/adapter/test___main__.py
+++ b/pythonFiles/tests/testing_tools/adapter/test___main__.py
@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import unittest
 
 from ...util import Stub, StubProxy
diff --git a/pythonFiles/tests/testing_tools/adapter/test_pytest.py b/pythonFiles/tests/testing_tools/adapter/test_pytest.py
index 4f634b7ec8d5..2602d9d05af0 100644
--- a/pythonFiles/tests/testing_tools/adapter/test_pytest.py
+++ b/pythonFiles/tests/testing_tools/adapter/test_pytest.py
@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import os.path
 import unittest
 
diff --git a/pythonFiles/tests/testing_tools/adapter/test_report.py b/pythonFiles/tests/testing_tools/adapter/test_report.py
index 89c2f3b7568e..2a844b50d4e8 100644
--- a/pythonFiles/tests/testing_tools/adapter/test_report.py
+++ b/pythonFiles/tests/testing_tools/adapter/test_report.py
@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import json
 import os.path
 import unittest
diff --git a/pythonFiles/tests/util.py b/pythonFiles/tests/util.py
index fade5261b2f3..2a6dd02552a4 100644
--- a/pythonFiles/tests/util.py
+++ b/pythonFiles/tests/util.py
@@ -1,3 +1,5 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
 
 class Stub(object):