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BUG=b:233893248
TEST=CQ

Change-Id: I66591d7a738d241aed3290138c0f68065ab10a6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3879174
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
diff --git a/api/faux.py b/api/faux.py
index a24bc76..2743de5 100644
--- a/api/faux.py
+++ b/api/faux.py
@@ -10,106 +10,112 @@
 
 
 def all_responses(faux_result_factory):
-  """A decorator to handle all mock responses.
+    """A decorator to handle all mock responses.
 
-  This is syntactic sugar for handling all of the mock response types in a
-  single function.
+    This is syntactic sugar for handling all of the mock response types in a
+    single function.
 
-  Args:
-    faux_result_factory: A function with the same signature as a regular
-        API endpoint function that populates the output with success or error
-        results, as requested, without executing the endpoint.
-  """
-  assert faux_result_factory
+    Args:
+      faux_result_factory: A function with the same signature as a regular
+          API endpoint function that populates the output with success or error
+          results, as requested, without executing the endpoint.
+    """
+    assert faux_result_factory
 
-  # Get the decorators for each of the mock types so we can compose them.
-  success_fn = success(faux_result_factory)
-  err_fn = error(faux_result_factory)
+    # Get the decorators for each of the mock types so we can compose them.
+    success_fn = success(faux_result_factory)
+    err_fn = error(faux_result_factory)
 
-  def _decorator(func):
-    return err_fn(success_fn(func))
+    def _decorator(func):
+        return err_fn(success_fn(func))
 
-  return _decorator
+    return _decorator
 
 
 def all_empty(func):
-  """Decorator to handle all mock responses with an empty output."""
-  return empty_error(empty_success(func))
+    """Decorator to handle all mock responses with an empty output."""
+    return empty_error(empty_success(func))
 
 
 def success(faux_result_factory):
-  """A decorator to handle mock call responses.
+    """A decorator to handle mock call responses.
 
-  Args:
-    faux_result_factory: A function with the same signature as a regular
-        API endpoint function that populates the output
-  """
-  assert faux_result_factory
+    Args:
+      faux_result_factory: A function with the same signature as a regular
+          API endpoint function that populates the output
+    """
+    assert faux_result_factory
 
-  def decorator(func):
+    def decorator(func):
+        @functools.wraps(func)
+        def _success(input_proto, output_proto, config, *args, **kwargs):
+            if config.mock_call:
+                faux_result_factory(
+                    input_proto, output_proto, config, *args, **kwargs
+                )
+                return controller.RETURN_CODE_SUCCESS
 
-    @functools.wraps(func)
-    def _success(input_proto, output_proto, config, *args, **kwargs):
-      if config.mock_call:
-        faux_result_factory(input_proto, output_proto, config, *args, **kwargs)
-        return controller.RETURN_CODE_SUCCESS
+            return func(input_proto, output_proto, config, *args, **kwargs)
 
-      return func(input_proto, output_proto, config, *args, **kwargs)
+        return _success
 
-    return _success
-
-  return decorator
+    return decorator
 
 
 def empty_success(func):
-  """A decorator to handle mock success responses with empty outputs."""
-  @functools.wraps(func)
-  def _empty_success(input_proto, output_proto, config, *args, **kwargs):
-    if config.mock_call:
-      return controller.RETURN_CODE_SUCCESS
+    """A decorator to handle mock success responses with empty outputs."""
 
-    return func(input_proto, output_proto, config, *args, **kwargs)
+    @functools.wraps(func)
+    def _empty_success(input_proto, output_proto, config, *args, **kwargs):
+        if config.mock_call:
+            return controller.RETURN_CODE_SUCCESS
 
-  return _empty_success
+        return func(input_proto, output_proto, config, *args, **kwargs)
+
+    return _empty_success
 
 
 def error(faux_error_factory):
-  """A decorator to handle mock error responses."""
-  assert faux_error_factory
+    """A decorator to handle mock error responses."""
+    assert faux_error_factory
 
-  def decorator(func):
+    def decorator(func):
+        @functools.wraps(func)
+        def _error(input_proto, output_proto, config, *args, **kwargs):
+            if config.mock_error:
+                faux_error_factory(
+                    input_proto, output_proto, config, *args, **kwargs
+                )
+                return controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE
 
-    @functools.wraps(func)
-    def _error(input_proto, output_proto, config, *args, **kwargs):
-      if config.mock_error:
-        faux_error_factory(input_proto, output_proto, config, *args, **kwargs)
-        return controller.RETURN_CODE_UNSUCCESSFUL_RESPONSE_AVAILABLE
+            return func(input_proto, output_proto, config, *args, **kwargs)
 
-      return func(input_proto, output_proto, config, *args, **kwargs)
+        return _error
 
-    return _error
-
-  return decorator
+    return decorator
 
 
 def empty_error(func):
-  """A decorator to handle mock error responses with empty outputs."""
-  @functools.wraps(func)
-  def _empty_error(input_proto, output_proto, config, *args, **kwargs):
-    if config.mock_error:
-      return controller.RETURN_CODE_UNRECOVERABLE
+    """A decorator to handle mock error responses with empty outputs."""
 
-    return func(input_proto, output_proto, config, *args, **kwargs)
+    @functools.wraps(func)
+    def _empty_error(input_proto, output_proto, config, *args, **kwargs):
+        if config.mock_error:
+            return controller.RETURN_CODE_UNRECOVERABLE
 
-  return _empty_error
+        return func(input_proto, output_proto, config, *args, **kwargs)
+
+    return _empty_error
+
 
 def empty_completed_unsuccessfully_error(func):
-  """A decorator to handle mock unsuccessful response with empty outputs."""
-  @functools.wraps(func)
-  def _empty_error(input_proto, output_proto, config, *args, **kwargs):
-    if config.mock_error:
-      return controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY
+    """A decorator to handle mock unsuccessful response with empty outputs."""
 
-    return func(input_proto, output_proto, config, *args, **kwargs)
+    @functools.wraps(func)
+    def _empty_error(input_proto, output_proto, config, *args, **kwargs):
+        if config.mock_error:
+            return controller.RETURN_CODE_COMPLETED_UNSUCCESSFULLY
 
-  return _empty_error
+        return func(input_proto, output_proto, config, *args, **kwargs)
+
+    return _empty_error