Add the ability to choose the database path at startup. Add more tests. Add bandit

tests/test_statistics_dialog.py

@@ -0,0 +1,106 @@
+import datetime as _dt
+
+from PySide6.QtWidgets import QLabel
+
+from bouquin.statistics_dialog import StatisticsDialog
+from bouquin import strings
+
+
+class FakeStatsDB:
+    """Minimal stub that returns a fixed stats payload."""
+
+    def __init__(self):
+        d1 = _dt.date(2024, 1, 1)
+        d2 = _dt.date(2024, 1, 2)
+        self.stats = (
+            2,  # pages_with_content
+            5,  # total_revisions
+            "2024-01-02",  # page_most_revisions
+            3,  # page_most_revisions_count
+            {d1: 10, d2: 20},  # words_by_date
+            30,  # total_words
+            4,  # unique_tags
+            "2024-01-02",  # page_most_tags
+            2,  # page_most_tags_count
+            {d1: 1, d2: 2},  # revisions_by_date
+        )
+        self.called = False
+
+    def gather_stats(self):
+        self.called = True
+        return self.stats
+
+
+def test_statistics_dialog_populates_fields_and_heatmap(qtbot):
+    # Make sure we have a known language for label texts
+    strings.load_strings("en")
+
+    db = FakeStatsDB()
+    dlg = StatisticsDialog(db)
+    qtbot.addWidget(dlg)
+    dlg.show()
+
+    # Stats were actually requested from the DB
+    assert db.called
+
+    # Window title comes from translations
+    assert dlg.windowTitle() == strings._("statistics")
+
+    # Grab all label texts for simple content checks
+    label_texts = {lbl.text() for lbl in dlg.findChildren(QLabel)}
+
+    # Page with most revisions / tags are rendered as "DATE (COUNT)"
+    assert "2024-01-02 (3)" in label_texts
+    assert "2024-01-02 (2)" in label_texts
+
+    # Heatmap is created and uses "words" by default
+    words_by_date = db.stats[4]
+    revisions_by_date = db.stats[-1]
+
+    assert hasattr(dlg, "_heatmap")
+    assert dlg._heatmap._data == words_by_date
+
+    # Switching the metric to "revisions" should swap the dataset
+    dlg.metric_combo.setCurrentIndex(1)  # 0 = words, 1 = revisions
+    qtbot.wait(10)
+    assert dlg._heatmap._data == revisions_by_date
+
+
+class EmptyStatsDB:
+    """Stub that returns a 'no data yet' stats payload."""
+
+    def __init__(self):
+        self.called = False
+
+    def gather_stats(self):
+        self.called = True
+        return (
+            0,  # pages_with_content
+            0,  # total_revisions
+            None,  # page_most_revisions
+            0,
+            {},  # words_by_date
+            0,  # total_words
+            0,  # unique_tags
+            None,  # page_most_tags
+            0,
+            {},  # revisions_by_date
+        )
+
+
+def test_statistics_dialog_no_data_shows_placeholder(qtbot):
+    strings.load_strings("en")
+
+    db = EmptyStatsDB()
+    dlg = StatisticsDialog(db)
+    qtbot.addWidget(dlg)
+    dlg.show()
+
+    assert db.called
+
+    label_texts = [lbl.text() for lbl in dlg.findChildren(QLabel)]
+    assert strings._("stats_no_data") in label_texts
+
+    # When there's no data, the heatmap and metric combo shouldn't exist
+    assert not hasattr(dlg, "metric_combo")
+    assert not hasattr(dlg, "_heatmap")