Add a test with an integer label

Add a test that is going through `is_node_type` with an integer label.

Overlap/Tests/short_tests.json

@@ -595,5 +595,20 @@
 	    "$PWD/Inst_eddies_10_anti_[1-3]"
 	],
 	"input": "&MAIN_NML MAX_DELTA=4 /\n"
+    },
+    {
+	"title": "Plot_traj_date",
+	"description": "plot_traj.py with options node and option label with an integer value, so is_node_type is called with an integer value for label.",
+	"command":
+	[
+	    "$src_dir/Overlap/plot_traj.py",
+	    "$tests_old_dir/Extraction_eddies_region_2_noise/SHPC_anti",
+	    "--save=png", "--node=347852", "--label=20461"
+	],
+	"symlink":
+	[
+	    "$PWD/EGr2nd15md4np3/edgelist.csv",
+	    "$PWD/EGr2nd15md4np3/node_id_param.json"
+	]
     }
 ]