diff --git a/tests-unit/execution_test/test_accumulate_merge.py b/tests-unit/execution_test/test_accumulate_merge.py
deleted file mode 100644
index 00910a2cd..000000000
--- a/tests-unit/execution_test/test_accumulate_merge.py
+++ /dev/null
@@ -1,89 +0,0 @@
-"""
-Unit tests for the accumulate toggle on SaveImage and PreviewImage nodes.
-
-Tests that the accumulate input is correctly defined and that the merge flag
-derivation logic in execution.py works for all input shapes.
-"""
-import inspect
-
-import pytest
-
-import nodes
-
-
-class TestSaveImageAccumulateInput:
-    """Test SaveImage node definition includes accumulate input."""
-
-    def test_accumulate_in_optional_inputs(self):
-        input_types = nodes.SaveImage.INPUT_TYPES()
-        assert "optional" in input_types
-        assert "accumulate" in input_types["optional"]
-
-    def test_accumulate_is_boolean_type(self):
-        input_types = nodes.SaveImage.INPUT_TYPES()
-        accumulate_def = input_types["optional"]["accumulate"]
-        assert accumulate_def[0] == "BOOLEAN"
-
-    def test_accumulate_defaults_to_false(self):
-        input_types = nodes.SaveImage.INPUT_TYPES()
-        accumulate_def = input_types["optional"]["accumulate"]
-        assert accumulate_def[1]["default"] is False
-
-    def test_accumulate_is_advanced(self):
-        input_types = nodes.SaveImage.INPUT_TYPES()
-        accumulate_def = input_types["optional"]["accumulate"]
-        assert accumulate_def[1].get("advanced") is True
-
-    def test_save_images_accepts_accumulate_parameter(self):
-        sig = inspect.signature(nodes.SaveImage.save_images)
-        assert "accumulate" in sig.parameters
-        assert sig.parameters["accumulate"].default is False
-
-
-class TestPreviewImageAccumulateInput:
-    """Test PreviewImage node definition includes accumulate input."""
-
-    def test_accumulate_in_optional_inputs(self):
-        input_types = nodes.PreviewImage.INPUT_TYPES()
-        assert "optional" in input_types
-        assert "accumulate" in input_types["optional"]
-
-    def test_accumulate_is_boolean_type(self):
-        input_types = nodes.PreviewImage.INPUT_TYPES()
-        accumulate_def = input_types["optional"]["accumulate"]
-        assert accumulate_def[0] == "BOOLEAN"
-
-    def test_accumulate_defaults_to_false(self):
-        input_types = nodes.PreviewImage.INPUT_TYPES()
-        accumulate_def = input_types["optional"]["accumulate"]
-        assert accumulate_def[1]["default"] is False
-
-
-class TestAccumulateMergeFlagDerivation:
-    """Test the merge flag logic used in execution.py.
-
-    In execution.py, the merge flag is derived as:
-        merge = inputs.get('accumulate') is True
-
-    This must return True only for literal True, not for truthy values
-    like lists (which represent node links in the prompt).
-    """
-
-    @pytest.mark.parametrize(
-        "inputs,expected",
-        [
-            ({"accumulate": True}, True),
-            ({"accumulate": False}, False),
-            ({}, False),
-            ({"accumulate": None}, False),
-            # Node link: accumulate connected to another node's output
-            ({"accumulate": ["other_node_id", 0]}, False),
-            # String "true" should not match
-            ({"accumulate": "true"}, False),
-            # Integer 1 should not match
-            ({"accumulate": 1}, False),
-        ],
-    )
-    def test_merge_flag(self, inputs, expected):
-        merge = inputs.get("accumulate") is True
-        assert merge is expected