From 9ebd05dc7b6f270bdb7fe5cc43166ae6c410d523 Mon Sep 17 00:00:00 2001
From: Oliver Hertel <rom@readonly.de>
Date: Sat, 7 Feb 2026 09:57:19 +0100
Subject: [PATCH] test file for weighted lists

---
 cli/test-weighted-lists.py | 112 +++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 cli/test-weighted-lists.py

diff --git a/cli/test-weighted-lists.py b/cli/test-weighted-lists.py
new file mode 100644
index 000000000..439f08a15
--- /dev/null
+++ b/cli/test-weighted-lists.py
@@ -0,0 +1,112 @@
+#!/usr/bin/env python
+
+import sys, os
+from collections import Counter
+
+script_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+os.chdir(script_dir)
+
+# --- test defition -------------------------------
+# library
+fn = r'./modules/styles.py'
+# tested function
+funcname = 'select_from_weighted_list'
+# random needed
+ns = {'Dict': dict, 'random': __import__('random')}
+# number of samples to test
+tries = 2000
+# allowed deviation in percentage points
+tolerance_pct = 5
+# tests
+tests = [
+    # - empty
+    ["", { '': 100 } ], 
+    # - no weights
+    [ "red|blonde|black", { 'black': 33, 'red': 33, 'blonde': 33 } ], 
+    # - full weights <= 1
+    [ "red:0.1|blonde:0.9", { 'blonde': 90, 'red': 10 } ], 
+    # - weights > 1 to test normalization
+    [ "red:1|blonde:2|black:5", { 'blonde': 25, 'red': 12.5, 'black': 62.5 } ], 
+    # - disabling 0 weights to force one result
+    [ "red:0|blonde|black:0", { 'blonde': 100 } ], 
+    # - weights <= 1 with distribution of the leftover
+    [ "red:0.5|blonde|black:0.3|brown", { 'red': 50, 'black': 30, 'brown': 10, 'blonde': 10 } ], 
+    # - weights > 1, unweightes should get default of 1
+    [ "red:2|blonde|black", { 'red': 50, 'blonde': 25, 'black': 25 } ], 
+    # - ignore content of ()
+    [ "red:0.5|(blonde:1.3)", { 'red': 50, '(blonde:1.3)': 50 } ], 
+    # - ignore content of []
+    [ "red:0.5|[stuff:1.3]", { '[stuff:1.3]': 50, 'red': 50 } ], 
+    # - ignore content of <>
+    [ "red:0.5|<lora:1.0>", { '<lora:1.0>': 50, 'red': 50 } ] 
+]
+
+# -------------------------------------------------
+
+with open(fn, 'r', encoding='utf-8') as f:
+    src = f.read()
+    start = src.find('def ' + funcname)
+    if start == -1:
+        print('Function not found')
+        sys.exit(1)
+    # find next top-level def or class after start
+    next_def = src.find('\ndef ', start+1)
+    next_class = src.find('\nclass ', start+1)
+    end_candidates = [i for i in (next_def, next_class) if i != -1]
+    end = min(end_candidates) if end_candidates else len(src)
+    func_src = src[start:end]
+
+    exec(func_src, ns)
+    func = ns.get(funcname)
+    if func is None:
+        print('Failed to extract function')
+        sys.exit(1)
+
+    print('Running' , tries, 'isolated quick tests for ' + funcname + ':\n')
+
+    """Print test summary."""
+    print("\n" + "=" * 70)
+    print("TEST SUMMARY")
+    print("=" * 70)
+
+    for t in tests:
+        print('INPUT:', t)
+        samples = [func(t[0]) for _ in range(tries)]
+        c = Counter(samples)
+        print("SAMPLES: ", dict(c))
+
+        # validation
+        expected_pct = t[1]
+        expected_keys = set(expected_pct.keys())
+        actual_keys = set(c.keys())
+        missing = expected_keys - actual_keys
+        unexpected = actual_keys - expected_keys
+
+        if missing or unexpected:
+            if missing:
+                print("MISSING: ", sorted(missing))
+            if unexpected:
+                print("UNEXPECTED: ", sorted(unexpected))
+            print("RESULT: FAILED (keys)")
+            print('')
+            continue
+
+        failures = []
+        for k, pct in expected_pct.items():
+            expected_count = tries * (pct / 100.0)
+            actual_count = c.get(k, 0)
+            actual_pct = (actual_count / tries) * 100.0
+            if abs(actual_pct - pct) > tolerance_pct:
+                failures.append(
+                    f"{k}: expected {pct:.1f}%, got {actual_pct:.1f}% "
+                    f"({actual_count}/{tries})"
+                )
+
+        if failures:
+            print("OUT OF RANGE: ")
+            for line in failures:
+                print(" - " + line)
+            print("RESULT: FAILED (distribution)")
+        else:
+            print("RESULT: PASSED")
+        print('')
\ No newline at end of file