ComfyUI/tests-unit/comfy_extras_test/nodes_number_convert_test.py
Dante a0a64c679f
Add Number Convert node (#13041)
* Add Number Convert node for unified numeric type conversion

Consolidates fragmented IntToFloat/FloatToInt nodes (previously only
available via third-party packs like ComfyMath, FillNodes, etc.) into
a single core node.

- Single input accepting INT, FLOAT, STRING, and BOOL types
- Two outputs: FLOAT and INT
- Conversion: bool→0/1, string→parsed number, float↔int standard cast
- Follows Math Expression node patterns (comfy_api, io.Schema, etc.)

Refs: COM-16925

* Register nodes_number_convert.py in extras_files list

Without this entry in nodes.py, the Number Convert node file
would not be discovered and loaded at startup.

* Add isfinite guard, exception chaining, and unit tests for Number Convert node

- Add math.isfinite() check to prevent int() crash on inf/nan string inputs
- Use 'from None' for cleaner exception chaining on string parse failure
- Add 21 unit tests covering all input types and error paths
2026-03-24 15:38:08 -07:00

124 lines
3.4 KiB
Python

import pytest
from unittest.mock import patch, MagicMock
mock_nodes = MagicMock()
mock_nodes.MAX_RESOLUTION = 16384
mock_server = MagicMock()
with patch.dict("sys.modules", {"nodes": mock_nodes, "server": mock_server}):
from comfy_extras.nodes_number_convert import NumberConvertNode
class TestNumberConvertExecute:
@staticmethod
def _exec(value) -> object:
return NumberConvertNode.execute(value)
# --- INT input ---
def test_int_input(self):
result = self._exec(42)
assert result[0] == 42.0
assert result[1] == 42
def test_int_zero(self):
result = self._exec(0)
assert result[0] == 0.0
assert result[1] == 0
def test_int_negative(self):
result = self._exec(-7)
assert result[0] == -7.0
assert result[1] == -7
# --- FLOAT input ---
def test_float_input(self):
result = self._exec(3.14)
assert result[0] == 3.14
assert result[1] == 3
def test_float_truncation_toward_zero(self):
result = self._exec(-2.9)
assert result[0] == -2.9
assert result[1] == -2 # int() truncates toward zero, not floor
def test_float_output_type(self):
result = self._exec(5)
assert isinstance(result[0], float)
def test_int_output_type(self):
result = self._exec(5.7)
assert isinstance(result[1], int)
# --- BOOL input ---
def test_bool_true(self):
result = self._exec(True)
assert result[0] == 1.0
assert result[1] == 1
def test_bool_false(self):
result = self._exec(False)
assert result[0] == 0.0
assert result[1] == 0
# --- STRING input ---
def test_string_integer(self):
result = self._exec("42")
assert result[0] == 42.0
assert result[1] == 42
def test_string_float(self):
result = self._exec("3.14")
assert result[0] == 3.14
assert result[1] == 3
def test_string_negative(self):
result = self._exec("-5.5")
assert result[0] == -5.5
assert result[1] == -5
def test_string_with_whitespace(self):
result = self._exec(" 7.0 ")
assert result[0] == 7.0
assert result[1] == 7
def test_string_scientific_notation(self):
result = self._exec("1e3")
assert result[0] == 1000.0
assert result[1] == 1000
# --- STRING error paths ---
def test_empty_string_raises(self):
with pytest.raises(ValueError, match="Cannot convert empty string"):
self._exec("")
def test_whitespace_only_string_raises(self):
with pytest.raises(ValueError, match="Cannot convert empty string"):
self._exec(" ")
def test_non_numeric_string_raises(self):
with pytest.raises(ValueError, match="Cannot convert string to number"):
self._exec("abc")
def test_string_inf_raises(self):
with pytest.raises(ValueError, match="non-finite"):
self._exec("inf")
def test_string_nan_raises(self):
with pytest.raises(ValueError, match="non-finite"):
self._exec("nan")
def test_string_negative_inf_raises(self):
with pytest.raises(ValueError, match="non-finite"):
self._exec("-inf")
# --- Unsupported type ---
def test_unsupported_type_raises(self):
with pytest.raises(TypeError, match="Unsupported input type"):
self._exec([1, 2, 3])