Add test Swapping

Trajectories/Tests/Eurec4_1993179.graphml

+<?xml version="1.0" encoding="UTF-8"?>
+<graphml xmlns="http://graphml.graphdrawing.org/xmlns"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns http://graphml.graphdrawing.org/xmlns/1.0/graphml.xsd">
+
+  <!-- property keys -->
+  <key id="key0" for="graph" attr.name="_Graph__save__efilter" attr.type="boolean" />
+  <key id="key1" for="edge" attr.name="_Graph__save__efilter" attr.type="boolean" />
+  <key id="key2" for="graph" attr.name="_Graph__save__vfilter" attr.type="boolean" />
+  <key id="key3" for="node" attr.name="_Graph__save__vfilter" attr.type="boolean" />
+  <key id="key4" for="edge" attr.name="cost_function" attr.type="float" />
+  <key id="key5" for="graph" attr.name="e_overestim" attr.type="int" />
+  <key id="key6" for="node" attr.name="inst_eddies" attr.type="vector_int" />
+  <key id="key7" for="node" attr.name="name" attr.type="int" />
+  <key id="key8" for="graph" attr.name="orientation" attr.type="string" />
+
+  <graph id="G" edgedefault="directed" parse.nodeids="canonical" parse.edgeids="canonical" parse.order="nodesfirst">
+
+   <!-- graph properties -->
+   <data key="key0">0</data>
+   <data key="key2">0</data>
+   <data key="key5">78</data>
+   <data key="key8">Anticyclones</data>
+
+   <!-- vertices -->
+    <node id="n0">
+      <data key="key3">1</data>
+      <data key="key6">1992949</data>
+      <data key="key7">1992949</data>
+    </node>
+    <node id="n1">
+      <data key="key3">1</data>
+      <data key="key6">1993106</data>
+      <data key="key7">1993106</data>
+    </node>
+    <node id="n2">
+      <data key="key3">1</data>
+      <data key="key6">1993179, 1993260, 1993339, 1993411, 1993491, 1993570, 1993652, 1993730, 1993814, 1993896, 1993971, 1994048, 1994127, 1994202, 1994279, 1994357, 1994431, 1994510, 1994587, 1994665, 1994744, 1994820, 1994900</data>
+      <data key="key7">1993179</data>
+    </node>
+    <node id="n3">
+      <data key="key3">1</data>
+      <data key="key6">1992316, 1992400, 1992482, 1992561, 1992637, 1992714, 1992788, 1992869</data>
+      <data key="key7">1992316</data>
+    </node>
+
+   <!-- edges -->
+    <edge id="e0" source="n0" target="n2">
+      <data key="key1">1</data>
+      <data key="key4">2.9984916921445364</data>
+    </edge>
+    <edge id="e1" source="n1" target="n2">
+      <data key="key1">1</data>
+      <data key="key4">0.88301711705599184</data>
+    </edge>
+    <edge id="e2" source="n3" target="n0">
+      <data key="key1">1</data>
+      <data key="key4">0.8198283087776379</data>
+    </edge>
+    <edge id="e3" source="n3" target="n1">
+      <data key="key1">1</data>
+      <data key="key4">2.8727306285642213</data>
+    </edge>
+
+  </graph>
+</graphml>

Trajectories/Tests/tests.json

@@ -191,5 +191,14 @@
 	    "$src_dir/Trajectories/trajectories.py",
 	    "$src_dir/Trajectories/Tests/component_60148580.graphml"
 	]
+    },
+    "Swapping":
+    {
+	"description": "The input file is a component extracted from Eurec4A/Graph_anti. This is a case where, in a phantom pattern, we swap the trajectories of pred[0] and pred[1].",
+	"command":
+	[
+	    "$src_dir/Trajectories/trajectories.py",
+	    "$src_dir/Trajectories/Tests/Eurec4_1993179.graphml"
+	]
     }
 }