Added/updated test-only files

src/fileChoserDialog.py

@@ -0,0 +1,30 @@
+from selectionDialog import SelectionDialog
+import os
+
+
+def openFileChoserDialog(title, path, preview = True):
+    choices = list()
+    file_list = list()
+
+    for filename in os.listdir(path):
+        fullpath = path + "/" + filename
+        file_list.append(fullpath)
+        with open(fullpath, "r") as fhandle:
+            appendstring = ""
+            if preview:
+                line = fhandle.readline()
+                line = line.rstrip()
+                if len(line) > 20:
+                    line = line[:17]
+                    line += "..."
+                appendstring += line + "\n("
+
+            appendstring += filename
+
+            if preview:
+                appendstring += ")"
+
+            choices.append(appendstring)
+
+    choice = SelectionDialog(title, choices, 20).start()
+    print(file_list[choice])