diff --git a/tools/testing_state.py b/tools/testing_state.py
index 6cda6ca..b3a4ed4 100644
--- a/tools/testing_state.py
+++ b/tools/testing_state.py
@@ -11,58 +11,70 @@
 CHOICES = ["all", "failing", "past-failing", "outstanding"]
 DEFAULT_REPORTS_ROOT = os.path.join(utils.BUILD, "testing-state")
 
+
 def set_up_test_state(gradle_args, testing_state_mode, testing_state_path):
-  if not testing_state_mode:
-    return
-  if not testing_state_path:
-    testing_state_path = os.path.join(DEFAULT_REPORTS_ROOT, utils.get_HEAD_branch())
-  testing_state_path = os.path.abspath(testing_state_path)
-  gradle_args.append('-Ptesting-state-mode=%s' % testing_state_mode)
-  gradle_args.append('-Ptesting-state-path=%s' % testing_state_path)
-  prepare_testing_index(testing_state_mode, testing_state_path)
+    if not testing_state_mode:
+        return
+    if not testing_state_path:
+        testing_state_path = os.path.join(DEFAULT_REPORTS_ROOT,
+                                          utils.get_HEAD_branch())
+    testing_state_path = os.path.abspath(testing_state_path)
+    gradle_args.append('-Ptesting-state-mode=%s' % testing_state_mode)
+    gradle_args.append('-Ptesting-state-path=%s' % testing_state_path)
+    prepare_testing_index(testing_state_mode, testing_state_path)
+
 
 def fresh_testing_index(testing_state_dir):
-  number = 0
-  while True:
-    freshIndex = os.path.join(testing_state_dir, "index.%d.html" % number)
-    number += 1
-    if not os.path.exists(freshIndex):
-      return freshIndex
+    number = 0
+    while True:
+        freshIndex = os.path.join(testing_state_dir, "index.%d.html" % number)
+        number += 1
+        if not os.path.exists(freshIndex):
+            return freshIndex
+
 
 def prepare_testing_index(testing_state_mode, testing_state_dir):
-  if not os.path.exists(testing_state_dir):
-    os.makedirs(testing_state_dir)
-  index_path = os.path.join(testing_state_dir, "index.html")
-  parent_report = None
-  resuming = os.path.exists(index_path)
-  mode = testing_state_mode if resuming else f"starting (flag: {testing_state_mode})"
-  if (resuming):
-    parent_report = fresh_testing_index(testing_state_dir)
-    os.rename(index_path, parent_report)
-  index = open(index_path, "a")
-  title = f"Testing: {os.path.basename(testing_state_dir)}"
-  # Print a console link to the test report for easy access.
-  print("=" * 70)
-  print("Test report written to:")
-  print(f"  file://{index_path}")
-  print("=" * 70)
-  # Print the new index content.
-  index.write(f"<html><head><title>{title}</title>")
-  index.write("<style> * { font-family: monospace; }</style>")
-  index.write("<meta http-equiv='refresh' content='10' />")
-  index.write(f"</head><body><h1>{title}</h1>")
-  index.write(f"<h2>Mode: {mode}</h2>")
-  # write index links first to avoid jumping when browsing.
-  if parent_report:
-    index.write(f"<p><a href=\"file://{parent_report}\">Previous result index</a></p>")
-  index.write(f"<p><a href=\"file://{index_path}\">Most recent result index</a></p>")
-  index.write(f"<p><a href=\"file://{testing_state_dir}\">Test directories</a></p>")
-  # git branch/hash and diff for future reference
-  index.write(f"<p>Run on: {datetime.datetime.now()}</p>")
-  index.write(f"<p>State path: {testing_state_dir}</p>")
-  index.write(f"<p>Git branch: {utils.get_HEAD_branch()}")
-  index.write(f"</br>Git SHA: {utils.get_HEAD_sha1()}")
-  index.write(f'</br>Git diff summary:\n')
-  index.write(f'<pre style="background-color: lightgray">{utils.get_HEAD_diff_stat()}</pre></p>')
-  # header for the failing tests
-  index.write("<h2>Failing tests (refreshing automatically every 10 seconds)</h2><ul>")
+    if not os.path.exists(testing_state_dir):
+        os.makedirs(testing_state_dir)
+    index_path = os.path.join(testing_state_dir, "index.html")
+    parent_report = None
+    resuming = os.path.exists(index_path)
+    mode = testing_state_mode if resuming else f"starting (flag: {testing_state_mode})"
+    if (resuming):
+        parent_report = fresh_testing_index(testing_state_dir)
+        os.rename(index_path, parent_report)
+    index = open(index_path, "a")
+    title = f"Testing: {os.path.basename(testing_state_dir)}"
+    # Print a console link to the test report for easy access.
+    print("=" * 70)
+    print("Test report written to:")
+    print(f"  file://{index_path}")
+    print("=" * 70)
+    # Print the new index content.
+    index.write(f"<html><head><title>{title}</title>")
+    index.write("<style> * { font-family: monospace; }</style>")
+    index.write("<meta http-equiv='refresh' content='10' />")
+    index.write(f"</head><body><h1>{title}</h1>")
+    index.write(f"<h2>Mode: {mode}</h2>")
+    # write index links first to avoid jumping when browsing.
+    if parent_report:
+        index.write(
+            f"<p><a href=\"file://{parent_report}\">Previous result index</a></p>"
+        )
+    index.write(
+        f"<p><a href=\"file://{index_path}\">Most recent result index</a></p>")
+    index.write(
+        f"<p><a href=\"file://{testing_state_dir}\">Test directories</a></p>")
+    # git branch/hash and diff for future reference
+    index.write(f"<p>Run on: {datetime.datetime.now()}</p>")
+    index.write(f"<p>State path: {testing_state_dir}</p>")
+    index.write(f"<p>Git branch: {utils.get_HEAD_branch()}")
+    index.write(f"</br>Git SHA: {utils.get_HEAD_sha1()}")
+    index.write(f'</br>Git diff summary:\n')
+    index.write(
+        f'<pre style="background-color: lightgray">{utils.get_HEAD_diff_stat()}</pre></p>'
+    )
+    # header for the failing tests
+    index.write(
+        "<h2>Failing tests (refreshing automatically every 10 seconds)</h2><ul>"
+    )