1 files changed, 14 insertions, 0 deletions

diff --git a/day9/test_init.py b/day9/test_init.py
new file mode 100644
index 0000000..b36eed6
--- /dev/null
+++ b/day9/test_init.py
@@ -0,0 +1,14 @@
+# -*- coding: utf-8 -*-
+import os.path
+
+import day9
+
+
+def test_output_visualization():
+    expected = "..##..\n" "...##.\n" ".####.\n" "....#.\n" "s###.."
+
+    assignment = day9.AssignmentOne(path=os.path.dirname(day9.__file__))
+    unique_positions = assignment.unique_tail_positions(
+        input=assignment.read_input(True)
+    )
+    assert expected == assignment.visualize(6, 5, unique_positions)