test: update tests for unified SVD label system (Task 7)

tests/test_explorer_chart.py

@@ -1,6 +1,7 @@
 """Tests for _build_party_axis_figure and load_party_mp_vectors in explorer.py."""
 
 import numpy as np
+import plotly.graph_objects as go
 import pytest
 
 

tests/test_political_compass.py

@@ -508,7 +508,7 @@ def _fresh_classifier(monkeypatch):
 
 
 def test_axis_label_left_right(tmp_path, monkeypatch):
-    """Positions that closely correlate with left_right scores → label 'Links–Rechts'."""
+    """Positions that closely correlate with left_right scores → label 'Verzorgingsstaat–Marktwerking'."""
     _cls = _fresh_classifier(monkeypatch)
 
     (tmp_path / "party_ideologies.csv").write_text(
@@ -537,7 +537,7 @@ def test_axis_label_left_right(tmp_path, monkeypatch):
 
     result = _cls.classify_axes(positions_by_window, axes, str(tmp_path / "motions.db"))
 
-    assert result["x_label"] == "Links\u2013Rechts"
+    assert result["x_label"] == "Verzorgingsstaat–Marktwerking"
     assert result["x_quality"]["2022"] >= 0.65
 
 
@@ -626,7 +626,7 @@ def test_compute_2d_axes_exposes_global_mean(monkeypatch):
 
 
 def test_classify_from_titles_left_right():
-    """Titles dominated by left-right keywords  'LinksRechts'."""
+    """Titles dominated by left-right keywords -> 'Verzorgingsstaat–Marktwerking'."""
     from analysis.axis_classifier import _classify_from_titles
 
     titles = [
@@ -637,7 +637,7 @@ def test_classify_from_titles_left_right():
         "Motie over bijstandsuitkering",
     ]
     label, confidence = _classify_from_titles(titles)
-    assert label == "Links\u2013Rechts"
+    assert label == "Verzorgingsstaat–Marktwerking"
     assert confidence >= 0.4
 
 
@@ -672,7 +672,7 @@ def test_classify_from_titles_low_confidence():
 
 
 def test_axis_swap_when_y_is_left_right():
-    """When y_label is 'Links–Rechts' and x_label is not, positions must be swapped."""
+    """When y_label is economic left-right and x_label is not, positions must be swapped."""
     from explorer import _swap_axes
 
     positions_by_window = {
@@ -683,11 +683,11 @@ def test_axis_swap_when_y_is_left_right():
     }
     axis_def = {
         "x_label": "Progressief\u2013Conservatief",
-        "y_label": "Links\u2013Rechts",
+        "y_label": "Verzorgingsstaat–Marktwerking",
         "x_quality": {"2023": 0.7},
         "y_quality": {"2023": 0.8},
         "x_interpretation": {"2023": "prog interpretation"},
-        "y_interpretation": {"2023": "lr interpretation"},
+        "y_interpretation": {"2023": "economic interpretation"},
         "x_top_motions": {"2023": {"+": [], "-": []}},
         "y_top_motions": {"2023": {"+": [], "-": []}},
         "x_label_confidence": {"2023": 0.5},
@@ -701,7 +701,7 @@ def test_axis_swap_when_y_is_left_right():
     assert new_pos["2023"]["PvdA"] == (-0.6, -0.3)
 
     # Labels swapped
-    assert new_ax["x_label"] == "Links\u2013Rechts"
+    assert new_ax["x_label"] == "Verzorgingsstaat–Marktwerking"
     assert new_ax["y_label"] == "Progressief\u2013Conservatief"
 
     # Quality swapped
@@ -710,18 +710,18 @@ def test_axis_swap_when_y_is_left_right():
 
 
 def test_axis_swap_not_applied_when_x_is_left_right():
-    """When x_label is already 'Links–Rechts', no swap should occur."""
+    """When x_label is already economic left-right, no swap should occur."""
     from explorer import _should_swap_axes
 
     axis_def = {
-        "x_label": "Links\u2013Rechts",
+        "x_label": "Verzorgingsstaat–Marktwerking",
         "y_label": "Progressief\u2013Conservatief",
     }
     assert _should_swap_axes(axis_def) is False
 
     axis_def2 = {
-        "x_label": "Links\u2013Rechts",
+        "x_label": "Verzorgingsstaat–Marktwerking",
-        "y_label": "Links\u2013Rechts",  # both LR — no swap
+        "y_label": "Verzorgingsstaat–Marktwerking",  # both economic — no swap
     }
     assert _should_swap_axes(axis_def2) is False
 

tests/test_run_pipeline.py

@@ -54,7 +54,7 @@ def test_build_parser_defaults():
     parser = build_parser()
     args = parser.parse_args([])
     assert args.db_path == "data/motions.db"
-    assert args.window_size == "quarterly"
+    assert args.window_size == "annual"
     assert args.svd_k == 50
     assert args.dry_run is False
 
@@ -72,7 +72,7 @@ def test_run_dry_run(tmp_path, monkeypatch):
         db_path=db_path,
         start_date="2024-01-01",
         end_date="2024-03-31",
-        window_size="quarterly",
+        window_size="annual",
         svd_k=10,
         text_model=None,
         skip_metadata=False,
@@ -98,7 +98,7 @@ def test_run_skip_all(tmp_path):
         db_path=db_path,
         start_date="2024-01-01",
         end_date="2024-03-31",
-        window_size="quarterly",
+        window_size="annual",
         svd_k=10,
         text_model=None,
         skip_metadata=True,

tests/test_svd_labels.py

@@ -0,0 +1,73 @@
+"""Tests for analysis/svd_labels module."""
+
+
+def test_get_svd_label_returns_correct_label():
+    """Test that get_svd_label returns the correct label for each component."""
+    from analysis.svd_labels import get_svd_label
+
+    # Component 1 should return EU-integratie label
+    label1 = get_svd_label(1)
+    assert "EU-integratie" in label1 or "Nationalisme" in label1
+
+    # Component 2 should return Populistisch label
+    label2 = get_svd_label(2)
+    assert "Populistisch" in label2 or "Institutioneel" in label2
+
+    # Component 3 should return Verzorgingsstaat label
+    label3 = get_svd_label(3)
+    assert "Verzorgingsstaat" in label3 or "Marktwerking" in label3
+
+
+def test_compute_flip_direction_right_on_left():
+    """Test that flip is True when right parties are on the left."""
+    from analysis.svd_labels import compute_flip_direction
+
+    # Right parties have negative scores (on left), left parties have positive
+    party_scores = {
+        "VVD": [-0.5, 0.0],  # Right party, component 1 score = -0.5
+        "PVV": [-0.8, 0.0],  # Right party
+        "SP": [0.6, 0.0],  # Left party, component 1 score = 0.6
+        "DENK": [0.4, 0.0],  # Left party
+    }
+
+    # Component 1: right_mean = -0.65, left_mean = 0.5
+    # right_mean < left_mean, so flip = True
+    assert compute_flip_direction(1, party_scores) is True
+
+
+def test_compute_flip_direction_right_on_right():
+    """Test that flip is False when right parties are already on the right."""
+    from analysis.svd_labels import compute_flip_direction
+
+    # Right parties have positive scores (on right), left parties have negative
+    party_scores = {
+        "VVD": [0.5, 0.0],  # Right party, component 1 score = 0.5
+        "PVV": [0.8, 0.0],  # Right party
+        "SP": [-0.6, 0.0],  # Left party
+        "DENK": [-0.4, 0.0],  # Left party
+    }
+
+    # Component 1: right_mean = 0.65, left_mean = -0.5
+    # right_mean > left_mean, so flip = False
+    assert compute_flip_direction(1, party_scores) is False
+
+
+def test_compute_flip_direction_insufficient_data():
+    """Test that flip is False when there's insufficient data."""
+    from analysis.svd_labels import compute_flip_direction
+
+    # No right parties in data
+    party_scores = {
+        "SP": [0.6, 0.0],
+        "DENK": [0.4, 0.0],
+    }
+
+    assert compute_flip_direction(1, party_scores) is False
+
+    # No left parties in data
+    party_scores = {
+        "VVD": [0.5, 0.0],
+        "PVV": [0.8, 0.0],
+    }
+
+    assert compute_flip_direction(1, party_scores) is False