copilot test

tests/test_read_excel.py

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+import io
+import os
+import pandas as pd
+import importlib.util
+import sys
+import types
+
+
+def load_scenar_module():
+    repo_root = os.path.dirname(os.path.dirname(__file__))
+    scenar_path = os.path.join(repo_root, 'cgi-bin', 'scenar.py')
+    # Provide a minimal fake `cgi` module so top-level imports in the CGI script don't fail
+    if 'cgi' not in sys.modules:
+        fake_cgi = types.ModuleType('cgi')
+        class FakeFieldStorage:
+            def getvalue(self, key, default=None):
+                return default
+            def keys(self):
+                return []
+            def __contains__(self, item):
+                return False
+        fake_cgi.FieldStorage = FakeFieldStorage
+        sys.modules['cgi'] = fake_cgi
+    # minimal fake cgitb (some environments don't expose it)
+    if 'cgitb' not in sys.modules:
+        fake_cgitb = types.ModuleType('cgitb')
+        def fake_enable():
+            return None
+        fake_cgitb.enable = fake_enable
+        sys.modules['cgitb'] = fake_cgitb
+
+    spec = importlib.util.spec_from_file_location('scenar', scenar_path)
+    module = importlib.util.module_from_spec(spec)
+    # executing the module will run top-level CGI code (prints etc.) but defines functions we need
+    spec.loader.exec_module(module)
+    return module
+
+
+def make_excel_bytes(df: pd.DataFrame) -> bytes:
+    bio = io.BytesIO()
+    with pd.ExcelWriter(bio, engine='openpyxl') as writer:
+        df.to_excel(writer, index=False)
+    return bio.getvalue()
+
+
+def test_read_excel_happy_path():
+    scenar = load_scenar_module()
+
+    df = pd.DataFrame({
+        'Datum': [pd.Timestamp('2025-11-13').date()],
+        'Zacatek': ['09:00'],
+        'Konec': ['10:00'],
+        'Program': ['Test program'],
+        'Typ': ['WORKSHOP'],
+        'Garant': ['Garant Name'],
+        'Poznamka': ['Pozn']
+    })
+
+    content = make_excel_bytes(df)
+    valid, errors = scenar.read_excel(content)
+
+    assert isinstance(valid, pd.DataFrame)
+    assert len(errors) == 0
+    assert len(valid) == 1
+    assert valid.iloc[0]['Program'] == 'Test program'
+
+
+def test_read_excel_invalid_time():
+    scenar = load_scenar_module()
+
+    df = pd.DataFrame({
+        'Datum': [pd.Timestamp('2025-11-13').date()],
+        'Zacatek': ['not-a-time'],
+        'Konec': ['10:00'],
+        'Program': ['Bad Time'],
+        'Typ': ['LECTURE'],
+        'Garant': [None],
+        'Poznamka': [None]
+    })
+
+    content = make_excel_bytes(df)
+    valid, errors = scenar.read_excel(content)
+
+    # invalid time should produce at least one error row and valid may be empty
+    assert isinstance(errors, list)
+    assert len(errors) >= 1