1 files changed, 54 insertions, 0 deletions
diff --git a/app/tests/test_cleaning.py b/app/tests/test_cleaning.py
new file mode 100644
index 0000000..41f4ed7
--- /dev/null
+++ b/app/tests/test_cleaning.py
@@ -0,0 +1,54 @@
+"""Tests for text and HTML cleaning."""
+
+import unittest
+
+from converter.extractors import clean_html, clean_text
+
+
+class CleanTextTests(unittest.TestCase):
+    def test_empty_input(self):
+        self.assertEqual(clean_text(""), "")
+        self.assertEqual(clean_text(None), "")
+
+    def test_collapses_whitespace(self):
+        self.assertEqual(clean_text("a\n\n   b \t c"), "a b c")
+
+    def test_preserves_inline_numbers(self):
+        self.assertEqual(clean_text("He was 42 years old."), "He was 42 years old.")
+
+    def test_preserves_grouped_and_decimal_numbers(self):
+        self.assertEqual(
+            clean_text("Over 1,000 pages and 3.5 stars."),
+            "Over 1,000 pages and 3.5 stars.",
+        )
+
+    def test_removes_standalone_page_numbers(self):
+        self.assertEqual(
+            clean_text("End of page.\n7\nNext page text."),
+            "End of page. Next page text.",
+        )
+
+    def test_page_number_removal_leaves_single_spacing(self):
+        result = clean_text("Chapter one\n\n12\n\nChapter two")
+        self.assertEqual(result, "Chapter one Chapter two")
+        self.assertNotIn("  ", result)
+
+
+class CleanHtmlTests(unittest.TestCase):
+    def test_strips_tags(self):
+        self.assertEqual(clean_html("<p>Hello <b>world</b></p>"), "Hello world")
+
+    def test_removes_script_and_style(self):
+        html = "<style>.x{color:red}</style><p>Text</p><script>var a=1;</script>"
+        self.assertEqual(clean_html(html), "Text")
+
+    def test_unescapes_entities(self):
+        self.assertEqual(clean_html("Tom &amp; Jerry"), "Tom & Jerry")
+
+    def test_empty(self):
+        self.assertEqual(clean_html(""), "")
+        self.assertEqual(clean_html(None), "")
+
+
+if __name__ == "__main__":
+    unittest.main()