fix: preserve long labels in drawio output

Signed-off-by: 1cbyc <isaacnsisong@gmail.com>

Author: 1cbyc

src/ibmdiagrams/ibmbase/common.py

@@ -40,31 +40,8 @@ def compress(self, string):
         return hash.hexdigest()
 
     def truncateText(self, text, size, linebreak):
-        if text.find(linebreak) == -1:
-            if len(text) > size:
-                return text[0 : size - 1] + "..."
-            else:
-                return text
-        else:
-            textsplit = text.split(linebreak)
-            newtext = ""
-            count = 0
-            for name in textsplit:
-                count = count + 1
-                if len(name) == 0:
-                    continue
-                elif len(name) > size:
-                    if count == 1:
-                        newtext = name[0 : size - 1] + "..."
-                    else:
-                        newtext = newtext + linebreak + name[0 : size - 1] + "..."
-                else:
-                    newtext = name if count == 1 else newtext + linebreak + name
-
-        if len(newtext) > 0:
-            return newtext
-        else:
-            return text
+        # Preserve labels as authored; draw.io handles wrapping/overflow.
+        return text
 
     # Options
 

tests/test_release_stabilization.py

@@ -80,6 +80,50 @@ def test_shape_builder_returns_drawio_cell_without_undefined_header():
     assert shape["props"] == {"owner": "test"}
 
 
+def test_shape_builder_preserves_long_labels_without_truncation():
+    """Long shape labels are preserved instead of shortened with ellipses."""
+    types = Types(Common())
+    long_label = "My Production VPC with a long name"
+    node = {
+        "shape": "gploc",
+        "label": long_label,
+        "sublabel": "",
+        "genname": "VPC",
+        "linecolor": Colors.lines["network"],
+        "fillcolor": Colors.fills["network"],
+        "parentid": None,
+        "image": "",
+        "icon": "",
+    }
+
+    shape = types.buildShape("shape-long-label", node, 10, 20, 200, 120, {}, False)
+
+    assert long_label in shape["cell"]["value"]
+    assert "..." not in shape["cell"]["value"]
+
+
+def test_python_api_preserves_long_group_labels_in_drawio_output(tmp_path: Path):
+    """Diagram-as-code output keeps full group labels in the generated DrawIO file."""
+    from ibmdiagrams.ibmcloud.compute import VirtualServer
+    from ibmdiagrams.ibmcloud.diagram import Diagram
+    from ibmdiagrams.ibmcloud.groups import VPC, IBMCloud, Region, Subnet, Zone
+
+    with Diagram("long-labels", output=str(tmp_path)):
+        with IBMCloud("IBM Cloud with a long name"):
+            with Region("Dallas"):
+                with VPC("My Production VPC with a long name"):
+                    with Zone("Zone 1", "10.10.0.0/18"):
+                        with Subnet("App Subnet", "10.10.10.0/24"):
+                            VirtualServer("Web Server", "10.10.10.4")
+
+    drawio = (tmp_path / "long-labels.drawio").read_text()
+
+    assert "IBM Cloud with a long name" in drawio
+    assert "My Production VPC with a long name" in drawio
+    assert "IBM Cloud with..." not in drawio
+    assert "My Production ..." not in drawio
+
+
 def test_value_builder_uses_text_style_without_undefined_shape_map():
     """Value builder uses the built-in text style instead of an undefined shape map."""
     types = Types(Common())