diff --git a/tests/unit/blockchain/__init__.py b/tests/unit/blockchain/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/unit/crypto/__init__.py b/tests/unit/crypto/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/unit/service/__init__.py b/tests/unit/service/__init__.py
new file mode 100644
index 000000000..e69de29bb