Test files and initial data gathering completed

tests/test_harvesting.py

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+from pathlib import Path
+
+import analyze
+
+HARVESTING = sorted(Path("tests/images/harvesting").glob("*.png"))
+NOT_HARVESTING = sorted(Path("tests/images/not_harvesting").glob("*.png"))
+
+assert len(HARVESTING) > 0, "no images found in tests/images/harvesting"
+assert len(NOT_HARVESTING) > 0, "no images found in tests/images/not_harvesting"
+
+
+def test_harvesting_frames_report_harvesting():
+    for path in HARVESTING:
+        image = analyze.load_image(path)
+        assert image is not None, f"cannot load {path}"
+        assert analyze.is_harvesting(image)["is_harvesting"] is True, path
+
+
+def test_not_harvesting_frames_report_not_harvesting():
+    for path in NOT_HARVESTING:
+        image = analyze.load_image(path)
+        assert image is not None, f"cannot load {path}"
+        assert analyze.is_harvesting(image)["is_harvesting"] is False, path