diff --git a/tests/nodes/test_node_graph.py b/tests/nodes/test_node_graph.py
index fe6709827f..56bf823d14 100644
--- a/tests/nodes/test_node_graph.py
+++ b/tests/nodes/test_node_graph.py
@@ -1,3 +1,4 @@
+from invokeai.app.invocations.baseinvocation import BaseInvocation, BaseInvocationOutput, invocation, invocation_output
 from .test_nodes import (
     ImageToImageTestInvocation,
     TextToImageTestInvocation,
@@ -20,7 +21,7 @@ from invokeai.app.invocations.upscale import ESRGANInvocation
 
 from invokeai.app.invocations.image import ShowImageInvocation
 from invokeai.app.invocations.math import AddInvocation, SubtractInvocation
-from invokeai.app.invocations.primitives import IntegerInvocation
+from invokeai.app.invocations.primitives import FloatInvocation, IntegerInvocation
 from invokeai.app.services.default_graphs import create_text_to_image
 import pytest
 
@@ -610,6 +611,59 @@ def test_graph_can_deserialize():
     assert g2.edges[0].destination.field == "image"
 
 
+def test_invocation_decorator():
+    invocation_type = "test_invocation"
+    title = "Test Invocation"
+    tags = ["first", "second", "third"]
+    category = "category"
+
+    @invocation(invocation_type, title=title, tags=tags, category=category)
+    class Test(BaseInvocation):
+        def invoke(self):
+            pass
+
+    schema = Test.schema()
+
+    assert schema.get("title") == title
+    assert schema.get("tags") == tags
+    assert schema.get("category") == category
+    assert Test(id="1").type == invocation_type  # type: ignore (type is dynamically added)
+
+
+def test_invocation_output_decorator():
+    output_type = "test_output"
+
+    @invocation_output(output_type)
+    class TestOutput(BaseInvocationOutput):
+        pass
+
+    assert TestOutput().type == output_type  # type: ignore (type is dynamically added)
+
+
+def test_floats_accept_ints():
+    g = Graph()
+    n1 = IntegerInvocation(id="1", value=1)
+    n2 = FloatInvocation(id="2")
+    g.add_node(n1)
+    g.add_node(n2)
+    e = create_edge(n1.id, "value", n2.id, "value")
+
+    # Not throwing on this line is sufficient
+    g.add_edge(e)
+
+
+def test_ints_do_not_accept_floats():
+    g = Graph()
+    n1 = FloatInvocation(id="1", value=1.0)
+    n2 = IntegerInvocation(id="2")
+    g.add_node(n1)
+    g.add_node(n2)
+    e = create_edge(n1.id, "value", n2.id, "value")
+
+    with pytest.raises(InvalidEdgeError):
+        g.add_edge(e)
+
+
 def test_graph_can_generate_schema():
     # Not throwing on this line is sufficient
     # NOTE: if this test fails, it's PROBABLY because a new invocation type is breaking schema generation