From 7ebbcd6c8e4ad996e29e6eee95993953d34ce2c5 Mon Sep 17 00:00:00 2001
From: Levi Vasconcelos <levi.vasconcelos@printbear.net>
Date: Thu, 15 Feb 2024 17:01:15 -0300
Subject: [PATCH] add polygon_zone unit tests

---
 test/detection/test_polygonzone.py | 88 ++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 test/detection/test_polygonzone.py

diff --git a/test/detection/test_polygonzone.py b/test/detection/test_polygonzone.py
new file mode 100644
index 00000000..257bbc04
--- /dev/null
+++ b/test/detection/test_polygonzone.py
@@ -0,0 +1,88 @@
+from contextlib import ExitStack as DoesNotRaise
+
+import numpy as np
+import pytest
+
+import supervision as sv
+
+DETECTION_BOXES = np.array(
+    [
+        [35.0, 35.0, 65.0, 65.0],
+        [60.0, 60.0, 90.0, 90.0],
+        [85.0, 85.0, 115.0, 115.0],
+        [110.0, 110.0, 140.0, 140.0],
+        [135.0, 135.0, 165.0, 165.0],
+        [160.0, 160.0, 190.0, 190.0],
+        [185.0, 185.0, 215.0, 215.0],
+        [210.0, 210.0, 240.0, 240.0],
+        [235.0, 235.0, 265.0, 265.0],
+    ],
+    dtype=np.float32,
+)
+
+DETECTIONS = sv.Detections(xyxy=DETECTION_BOXES, class_id=np.array([0, 0, 0, 0, 0, 0, 0, 0, 0]))
+
+POLYGON = np.array([[100, 100], [200, 100], [200, 200], [100, 200]])
+FRAME_RESOLUTION = (300, 300)
+
+
+@pytest.mark.parametrize(
+    "detections, polygon_zone, expected_results, exception",
+    [
+        (
+            DETECTIONS,
+            sv.PolygonZone(
+                POLYGON,
+                FRAME_RESOLUTION,
+                triggering_anchors=(
+                    sv.Position.TOP_LEFT,
+                    sv.Position.TOP_RIGHT,
+                    sv.Position.BOTTOM_LEFT,
+                    sv.Position.BOTTOM_RIGHT,
+                ),
+            ),
+            np.array([False, False, False, True, True, True, False, False, False], dtype=bool),
+            DoesNotRaise(),
+        ),  # Test all four corners
+        (
+            DETECTIONS,
+            sv.PolygonZone(
+                POLYGON,
+                FRAME_RESOLUTION,
+            ),
+            np.array([False, False, True, True, True, True, False, False, False], dtype=bool),
+            DoesNotRaise(),
+        ),  # Test default behaviour when no anchors are provided
+        (
+            DETECTIONS,
+            sv.PolygonZone(POLYGON, FRAME_RESOLUTION, triggering_position=sv.Position.BOTTOM_CENTER),
+            np.array([False, False, True, True, True, True, False, False, False], dtype=bool),
+            DoesNotRaise(),
+        ),  # Test default behaviour with deprecated api.
+        (
+            sv.Detections.empty(),
+            sv.PolygonZone(
+                POLYGON,
+                FRAME_RESOLUTION,
+            ),
+            np.array([], dtype=bool),
+            DoesNotRaise(),
+        ),  # Test empty detections
+    ],
+)
+def test_polygon_zone_trigger(
+    detections: sv.Detections,
+    polygon_zone: sv.PolygonZone,
+    expected_results: np.ndarray,
+    exception: Exception,
+) -> None:
+    with exception:
+        in_zone = polygon_zone.trigger(detections)
+        assert np.all(in_zone == expected_results)
+
+
+def test_polygon_zone_deprecated() -> None:
+    with pytest.deprecated_call():
+        sv.PolygonZone(POLYGON, FRAME_RESOLUTION, triggering_position=sv.Position.CENTER)
+    with DoesNotRaise():
+        sv.PolygonZone(POLYGON, FRAME_RESOLUTION, triggering_anchors=(sv.Position.CENTER,))