feat(reports): leftover-map singular values on comparison leftover-axis badges (v2.80.0)

tests/test_grouping_comparison_axis_badge_singular_contract.py

@@ -0,0 +1,43 @@
+"""Executable contract for comparison-strip leftover-axis singular badges."""
+
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+SINGULAR_SOURCE = ROOT / "frontend" / "src" / "leftoverMapPlotAxisSingular.ts"
+
+
+def test_comparison_strip_axis_badge_has_distinct_copy_for_share_and_singular() -> None:
+    """Comparison-strip badge copy must be distinct from report and comparison-graphic axes."""
+    assert SINGULAR_SOURCE.exists(), "comparison singular-value helper is missing"
+    source = SINGULAR_SOURCE.read_text(encoding="utf-8")
+
+    assert (
+        'LEFTOVER_MAP_COMPARE_AXIS_SINGULAR =\n'
+        '  "leftover map comparison leftover axis {axis} σ {value}"'
+        in source
+    )
+    assert (
+        'LEFTOVER_MAP_COMPARE_AXIS_SINGULAR_SHARE =\n'
+        '  "leftover map comparison leftover axis {axis} σ {value} {share}%"'
+        in source
+    )
+    assert (
+        'LEFTOVER_MAP_COMPARE_AXIS_SHARE =\n'
+        '  "leftover map comparison leftover axis {axis} {share}%"'
+        in source
+    )
+    assert "leftoverMapCompareAxisBadge" in source
+
+
+def test_comparison_strip_axis_badge_preserves_independent_missingness() -> None:
+    """Share-only and σ-only states must not synthesize the missing counterpart."""
+    assert SINGULAR_SOURCE.exists(), "comparison singular-value helper is missing"
+    source = SINGULAR_SOURCE.read_text(encoding="utf-8")
+
+    assert "formatLeftoverMapPlotAxisSingular" in source
+    assert "Number.isFinite" in source
+    assert "LEFTOVER_MAP_COMPARE_AXIS_SINGULAR_SHARE" in source
+    assert "LEFTOVER_MAP_COMPARE_AXIS_SINGULAR" in source
+    assert "LEFTOVER_MAP_COMPARE_AXIS_SHARE" in source
+    assert "Math.sqrt" not in source