assert isinstance(OPACITY_50_CLS, str) and len(OPACITY_50_CLS) > 0
assert "caret-indicator" in CARET_INDICATOR_CLS
assert "animate-pulse" in CARET_INDICATOR_CLS
assert isinstance(HIGHLIGHT_CLS, str) and len(HIGHLIGHT_CLS) > 0
assert DEFAULT_INITIAL_DELAY > 0
assert DEFAULT_REPEAT_INTERVAL > 0
assert DEFAULT_THROTTLE_FLOOR > 0
print(f"OPACITY_50_CLS: {OPACITY_50_CLS!r}")
print(f"CARET_INDICATOR_CLS: {CARET_INDICATOR_CLS!r}")
print(f"HIGHLIGHT_CLS: {HIGHLIGHT_CLS!r}")
print("All constants tests passed!")