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mcDandy-more_math/tests/test_more_math.py
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2026-01-08 14:14:44 +01:00

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Python

#!/usr/bin/env python
"""Tests for `more_math` package."""
import os
import sys
# Ensure test runner (Visual Studio) can import the package regardless of working dir.
# If repository uses `src/` layout, add that to sys.path; otherwise add project root.
_here = os.path.abspath(os.path.dirname(__file__))
_project_root = os.path.abspath(os.path.join(_here, os.pardir))
_src_path = os.path.join(_project_root, "src")
if os.path.isdir(_src_path) and _src_path not in sys.path:
sys.path.insert(0, _src_path)
elif _project_root not in sys.path:
sys.path.insert(0, _project_root)
# Add ComfyUI root to path to find 'comfy' and 'comfy_api' packages
_comfy_root = os.path.abspath(os.path.join(_here, "../../.."))
if _comfy_root not in sys.path:
sys.path.insert(0, _comfy_root)
import torch
from more_math.ConditioningMathNode import ConditioningMathNode
from more_math.LatentMathNode import LatentMathNode
from more_math.ImageMathNode import ImageMathNode
from more_math.FloatMathNode import FloatMathNode
# ==========================================
# Node Initialization and Metadata Tests
# ==========================================
def test_conditioning_math_node_initialization():
node = ConditioningMathNode()
assert isinstance(node, ConditioningMathNode)
def test_conditioning_math_node_metadata():
assert ConditioningMathNode.RETURN_TYPES == ["CONDITIONING"]
assert ConditioningMathNode.FUNCTION == "EXECUTE_NORMALIZED"
assert ConditioningMathNode.CATEGORY == "More math"
def test_latent_math_node_initialization():
node = LatentMathNode()
assert isinstance(node, LatentMathNode)
def test_latent_math_node_metadata():
assert LatentMathNode.RETURN_TYPES == ["LATENT"]
assert LatentMathNode.FUNCTION == "EXECUTE_NORMALIZED"
assert LatentMathNode.CATEGORY == "More math"
def test_image_math_node_initialization():
node = ImageMathNode()
assert isinstance(node, ImageMathNode)
def test_image_math_node_metadata():
assert ImageMathNode.RETURN_TYPES == ["IMAGE"]
assert ImageMathNode.FUNCTION == "EXECUTE_NORMALIZED"
assert ImageMathNode.CATEGORY == "More math"
# ==========================================
# FFT Tests
# ==========================================
def test_fft_invertibility():
# Create random input latent (Batch, Channel, Height, Width)
input_tensor = torch.randn(1, 4, 32, 32, dtype=torch.float32)
input_dict = {"samples": input_tensor}
# Execute ifft(fft(a))
result = LatentMathNode.execute(Latent="ifft(fft(a))", a=input_dict)
output_tensor = result[0]["samples"]
assert torch.allclose(input_tensor, output_tensor, atol=1e-5), f"Max difference: {(input_tensor - output_tensor).abs().max()}"
def test_image_fft_dims():
# Image input is (Batch, Height, Width, Channel)
input_tensor = torch.randn(1, 32, 32, 3, dtype=torch.float32)
result = ImageMathNode.execute(Image="ifft(fft(a))", a=input_tensor)
output_tensor = result[0]
assert input_tensor.shape == output_tensor.shape
assert torch.allclose(input_tensor, output_tensor, atol=1e-5), (
f"Image FFT round trip failed. Max diff: {(input_tensor - output_tensor).abs().max()}"
)
# ==========================================
# Latent Math Basic Functions (Evaluated on Tensors)
# ==========================================
def test_latent_lerp():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
l_b = {"samples": torch.full((1, 4, 32, 32), 10.0)}
res_lerp = node.execute("lerp(a, b, 0.5)", a=l_a, b=l_b)[0]["samples"]
assert torch.allclose(res_lerp, torch.full_like(res_lerp, 5.0))
def test_latent_step_true():
node = LatentMathNode()
# step(0.5, a) where a=0.8 -> 1
res_step = node.execute("step(0.5, a)", a={"samples": torch.full((1, 1, 1, 1), 0.8)})[0]["samples"]
assert torch.allclose(res_step, torch.ones_like(res_step))
def test_latent_step_false():
node = LatentMathNode()
# step(0.5, a) where a=0.2 -> 0
res_step2 = node.execute("step(0.5, a)", a={"samples": torch.full((1, 1, 1, 1), 0.2)})[0]["samples"]
assert torch.allclose(res_step2, torch.zeros_like(res_step2))
def test_latent_swap():
node = LatentMathNode()
t_lat = torch.tensor([0.0, 10.0, 20.0, 30.0]).view(1, 4, 1, 1)
# Swap channels 0 and 3 -> 30, 10, 20, 0
l_swap = {"samples": t_lat}
res_swap = node.execute("swap(a, 1, 0, 3)", a=l_swap)[0]["samples"]
expected = torch.tensor([30.0, 10.0, 20.0, 0.0]).view(1, 4, 1, 1)
assert torch.allclose(res_swap, expected)
def test_latent_relu():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res_relu = node.execute("relu(-5.0)", a=l_a)[0]["samples"]
assert torch.allclose(res_relu, torch.zeros_like(res_relu))
def test_latent_sign():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res_sign = node.execute("sign(-5.0)", a=l_a)[0]["samples"]
assert torch.allclose(res_sign, torch.full_like(res_sign, -1.0))
def test_latent_fract():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res_fract = node.execute("fract(1.5)", a=l_a)[0]["samples"]
assert torch.allclose(res_fract, torch.full_like(res_fract, 0.5))
# ==========================================
# Float Math Basic Functions (Evaluated on Scalars)
# ==========================================
def test_float_lerp():
node = FloatMathNode()
res = node.execute("lerp(a, b, 0.5)", a=0.0, b=10.0)[0]
assert abs(res - 5.0) < 1e-5
def test_float_step():
node = FloatMathNode()
res = node.execute("step(0.5, a)", a=0.8)[0]
assert abs(res - 1.0) < 1e-5
def test_float_relu():
node = FloatMathNode()
res = node.execute("relu(a)", a=-5.0)[0]
assert abs(res - 0.0) < 1e-5
def test_float_smoothstep():
node = FloatMathNode()
res = node.execute("smoothstep(0, 1, a)", a=0.5)[0]
assert abs(res - 0.5) < 1e-5
# ==========================================
# Float Math Extended Functions
# ==========================================
def test_float_fract():
node = FloatMathNode()
res = node.execute("fract(a)", a=1.5)[0]
assert abs(res - 0.5) < 1e-5
def test_float_softplus():
node = FloatMathNode()
res = node.execute("softplus(a)", a=0.0)[0]
assert abs(res - 0.69314718) < 1e-5
def test_float_sign_negative():
node = FloatMathNode()
assert node.execute("sign(a)", a=-10.0)[0] == -1.0
def test_float_sign_positive():
node = FloatMathNode()
assert node.execute("sign(a)", a=10.0)[0] == 1.0
def test_float_sign_zero():
node = FloatMathNode()
assert node.execute("sign(a)", a=0.0)[0] == 0.0
def test_float_gelu():
node = FloatMathNode()
assert node.execute("gelu(a)", a=0.0)[0] == 0.0
# ==========================================
# Latent Math Extended Functions
# ==========================================
def test_latent_smoothstep():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res = node.execute("smoothstep(0, 1, 0.5)", a=l_a)[0]["samples"]
assert torch.allclose(res, torch.full_like(res, 0.5))
def test_latent_softplus():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res = node.execute("softplus(0.0)", a=l_a)[0]["samples"]
assert torch.allclose(res, torch.full_like(res, 0.69314718))
def test_latent_gelu():
node = LatentMathNode()
l_a = {"samples": torch.zeros(1, 4, 32, 32)}
res = node.execute("gelu(0.0)", a=l_a)[0]["samples"]
assert torch.allclose(res, torch.zeros_like(res))
# ==========================================
# Image Math Operations
# ==========================================
def test_image_lerp():
node = ImageMathNode()
img_red = torch.tensor([1.0, 0.0, 0.0]).view(1, 1, 1, 3)
img_blue = torch.tensor([0.0, 0.0, 1.0]).view(1, 1, 1, 3)
res_blend = node.execute("lerp(a, b, 0.5)", a=img_red, b=img_blue)[0]
expected = torch.tensor([0.5, 0.0, 0.5]).view(1, 1, 1, 3)
assert torch.allclose(res_blend, expected)
def test_image_swap():
node = ImageMathNode()
img_red = torch.tensor([1.0, 0.0, 0.0]).view(1, 1, 1, 3)
img_blue = torch.tensor([0.0, 0.0, 1.0]).view(1, 1, 1, 3)
res_swap = node.execute("swap(a, 1, 0, 2)", a=img_red)[0]
assert torch.allclose(res_swap, img_blue)
# ==========================================
# Nested Expressions
# ==========================================
def test_float_nested_expressions_true():
node = FloatMathNode()
# lerp(0, 10, step(0.5, 0.8)) -> lerp(0, 10, 1) -> 10
res = node.execute("lerp(0, 10, step(0.5, 0.8))", a=0.0)[0]
assert res == 10.0
def test_float_nested_expressions_false():
node = FloatMathNode()
# lerp(0, 10, step(0.5, 0.2)) -> lerp(0, 10, 0) -> 0
res2 = node.execute("lerp(0, 10, step(0.5, 0.2))", a=0.0)[0]
assert res2 == 0.0
# ==========================================
# 5D Tensor Support
# ==========================================
def test_5d_tensors_identity():
node = LatentMathNode()
samples = torch.randn(1, 5, 4, 32, 32)
l_in = {"samples": samples}
res = node.execute("a * 1.0", a=l_in)[0]["samples"]
assert res.shape == (1, 5, 4, 32, 32)
assert torch.allclose(res, samples)
def test_5d_tensors_variable_T():
node = LatentMathNode()
samples = torch.randn(1, 5, 4, 32, 32)
l_in = {"samples": samples}
# In 5D, T maps to dim -4 (size 5)
res_t = node.execute("a + T", a=l_in)[0]["samples"]
assert torch.allclose(res_t, samples + 5.0)
def test_5d_tensors_fft():
node = LatentMathNode()
samples = torch.randn(1, 5, 4, 32, 32)
l_in = {"samples": samples}
res_fft = node.execute("ifft(fft(a))", a=l_in)[0]["samples"]
assert torch.allclose(res_fft, samples, atol=1e-5)
# ==========================================
# Noise Math Node 5D Support
# ==========================================
def test_noise_math_5d():
from more_math.NoiseMathNode import NoiseMathNode
class MockNoise:
def __init__(self, tensor):
self.tensor = tensor
def generate_noise(self, input_latent):
return self.tensor
node = NoiseMathNode()
samples = torch.randn(1, 5, 4, 32, 32)
noise_a = MockNoise(samples)
result_executor = node.execute("a + T", a=noise_a)[0]
dummy_latent = {"samples": samples}
res = result_executor.generate_noise(dummy_latent)
assert res.shape == (1, 5, 4, 32, 32)
assert torch.allclose(res, samples + 5.0)
# ==========================================
# NestedTensor Support
# ==========================================
def test_nested_tensor_support():
try:
from comfy.nested_tensor import NestedTensor
except ImportError:
assert False, "Could not import comfy.nested_tensor."
node = LatentMathNode()
t1 = torch.full((1, 4, 32, 32), 1.0)
t2 = torch.full((2, 4, 32, 32), 2.0)
nt_in = NestedTensor([t1, t2])
l_in = {"samples": nt_in}
res_lat = node.execute("a + 1.0", a=l_in)[0]["samples"]
assert getattr(res_lat, "is_nested", False)
res_list = res_lat.unbind()
assert len(res_list) == 2
assert torch.allclose(res_list[0], torch.full_like(t1, 2.0))
assert torch.allclose(res_list[1], torch.full_like(t2, 3.0))
# ==========================================
# Comprehensive Math Function Tests
# ==========================================
def test_trig_functions():
node = FloatMathNode()
# Sin/Cos checks
# sin(0) = 0, cos(0) = 1
assert abs(node.execute("sin(0)", a=0.0)[0] - 0.0) < 1e-5
assert abs(node.execute("cos(0)", a=0.0)[0] - 1.0) < 1e-5
# tan(0) = 0
assert abs(node.execute("tan(0)", a=0.0)[0] - 0.0) < 1e-5
def test_inverse_trig_functions():
node = FloatMathNode()
# asin(0) = 0, acos(1) = 0, atan(0) = 0
assert abs(node.execute("asin(0)", a=0.0)[0] - 0.0) < 1e-5
assert abs(node.execute("acos(1)", a=0.0)[0] - 0.0) < 1e-5
assert abs(node.execute("atan(0)", a=0.0)[0] - 0.0) < 1e-5
def test_pow_log_functions():
node = FloatMathNode()
# pow(2, 3) = 8
assert abs(node.execute("pow(2, 3)", a=0.0)[0] - 8.0) < 1e-5
# sqrt(4) = 2
assert abs(node.execute("sqrt(4)", a=0.0)[0] - 2.0) < 1e-5
# exp(0) = 1
assert abs(node.execute("exp(0)", a=0.0)[0] - 1.0) < 1e-5
# log(100) = 2 (base 10)
assert abs(node.execute("log(100)", a=0.0)[0] - 2.0) < 1e-5
# ln(e) = 1. Using 'e' constant logic check or approx 2.718
assert abs(node.execute("ln(2.7182818)", a=0.0)[0] - 1.0) < 1e-4
def test_min_max_functions():
import sys
node = FloatMathNode()
print("Testing tmin...", flush=True)
# tmin(2, 5) = 2, tmax(2, 5) = 5
assert abs(node.execute("tmin(2, 5)", a=0.0)[0] - 2.0) < 1e-5
print("Testing tmax...", flush=True)
assert abs(node.execute("tmax(2, 5)", a=0.0)[0] - 5.0) < 1e-5
# smin/smax (Smooth min/max? Or just multi-arg min/max? TensorEvalVisitor uses stack.min/max)
# smin(1, 2, 3) = 1
print("Testing smin...", flush=True)
res_smin = node.execute("smin(1, 2, 3)", a=0.0)[0]
print(f"smin result: {res_smin} type: {type(res_smin)}", flush=True)
assert abs(res_smin - 1.0) < 1e-5
print("Testing smax...", flush=True)
res_smax = node.execute("smax(1, 2, 3)", a=0.0)[0]
print(f"smax result: {res_smax} type: {type(res_smax)}", flush=True)
assert abs(res_smax - 3.0) < 1e-5
def test_basic_utilities():
node = FloatMathNode()
# abs(-5) = 5
assert abs(node.execute("abs(-5)", a=0.0)[0] - 5.0) < 1e-5
# floor(1.9) = 1
assert abs(node.execute("floor(1.9)", a=0.0)[0] - 1.0) < 1e-5
# ceil(1.1) = 2
assert abs(node.execute("ceil(1.1)", a=0.0)[0] - 2.0) < 1e-5
# round(1.6) = 2, round(1.4) = 1
assert abs(node.execute("round(1.6)", a=0.0)[0] - 2.0) < 1e-5
assert abs(node.execute("round(1.4)", a=0.0)[0] - 1.0) < 1e-5
# clamp(10, 0, 5) = 5, clamp(-5, 0, 5) = 0
assert abs(node.execute("clamp(10, 0, 5)", a=0.0)[0] - 5.0) < 1e-5
assert abs(node.execute("clamp(-5, 0, 5)", a=0.0)[0] - 0.0) < 1e-5
def test_advanced_activations():
node = FloatMathNode()
# sigm(0) = 0.5
assert abs(node.execute("sigm(0)", a=0.0)[0] - 0.5) < 1e-5
if __name__ == "__main__":
import sys
try:
test_conditioning_math_node_initialization()
test_conditioning_math_node_metadata()
test_latent_math_node_initialization()
test_latent_math_node_metadata()
test_image_math_node_initialization()
test_image_math_node_metadata()
test_trig_functions()
test_inverse_trig_functions()
test_pow_log_functions()
test_min_max_functions()
test_basic_utilities()
test_advanced_activations()
print("All tests passed!")
except Exception as e:
import traceback
traceback.print_exc()
sys.exit(1)
print("All tests in test_more_math.py passed!")