unit test for pydot

tests/unit/test_pydot.py

@@ -0,0 +1,32 @@
+# -*- coding: UTF-8 -*
+
+"""Unit tests for pydot
+
+Ce test vérifie que le module pydot est compatible avec notre code.
+(pydot a souyvent été buggué)
+
+Usage: pytest tests/unit/test_pydot.py
+"""
+
+import pydot
+from app.scodoc import sco_utils as scu
+
+
+def test_pydot(test_client):
+    g = pydot.Dot("graphname")
+    g.add_node(pydot.Node("a"))
+    g.add_node(pydot.Node("b"))
+    n = g.get_node("a")
+    assert isinstance(n, list)
+    assert len(n) == 1
+    assert [x.get_name() for x in g.get_node_list()] == ["a", "b"]
+    #
+    edges = [("a", "b"), ("b", "c"), ("c", "d")]
+    g = scu.graph_from_edges(edges)
+    assert len(g.get_node_list()) == 4
+    n = g.get_node("d")[0]
+    n.set_fontname("Helvetica")
+    n.set_fontsize(8.0)
+    n.set("label", "toto")
+    assert "fontname=Helvetica" in g.to_string()
+    assert "toto" in g.to_string()