def test_scaling_rates():
# Check rates
assert rescale_js(0.0, rate=0.5) == 0.0
assert rescale_js(1.0, rate=0.5) == 0.5
assert rescale_js(-1.0, rate=0.5) == -0.5
assert rescale_js(0.5, rate=0.5) == 0.25
assert rescale_js(-0.5, rate=0.5) == -0.25
def test_scaling_combo():
# Check combination
assert rescale_js(0.0, deadzone=0.2, exponential=0.2, rate=0.9) == 0.0
assert (rescale_js(1.0, deadzone=0.2, exponential=0.2, rate=0.9) - 0.9) < 0.05
assert (rescale_js(-1.0, deadzone=0.2, exponential=0.2, rate=0.9) - -0.9) < 0.05
# Test halfway point
assert rescale_js(0.6, deadzone=0.2, exponential=0.2, rate=0.9) < 0.45
assert rescale_js(-0.6, deadzone=0.2, exponential=0.2, rate=0.9) > -0.45
assert rescale_js(0.6, deadzone=0.2, exponential=0.2, rate=0.9) == -rescale_js(-0.6, deadzone=0.2, exponential=0.2, rate=0.9)
def test_scaling_deadzone():
# Deadzone
assert rescale_js(0.0, deadzone=0.1) == 0.0
assert rescale_js(0.1, deadzone=0.1) == 0.0
assert rescale_js(-0.1, deadzone=0.1) == 0.0
assert rescale_js(1.0, deadzone=0.1) == 1.0
assert rescale_js(-1.0, deadzone=0.1) == -1.0
# Remaining range should be scaled evenly to avoid jumps around the deadzone value
assert abs(rescale_js(0.6, deadzone=0.2) - 0.5) < 0.05
assert abs(rescale_js(-0.6, deadzone=0.2) - -0.5) < 0.05
def test_scaling_expo():
# Exponential
assert rescale_js(0.0, exponential=0.5) == 0.0
assert rescale_js(1.0, exponential=0.5) == 1.0
assert rescale_js(-1.0, exponential=0.5) == -1.0
# Check for strictly increasing function
assert rescale_js(0.5, exponential=0.5) < rescale_js(0.6, exponential=0.5)
assert rescale_js(-0.5, exponential=0.5) > rescale_js(-0.6, exponential=0.5)
# Check that more expo damps the centre more
assert rescale_js(0.5, exponential=0.5) > rescale_js(0.5, exponential=0.6)
assert rescale_js(-0.5, exponential=0.5) < rescale_js(-0.5, exponential=0.6)
# Check symmetrical
assert rescale_js(-0.5, exponential=0.5) == -rescale_js(0.5, exponential=0.5)
