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-rw-r--r--tests/test_plugins.py113
1 files changed, 113 insertions, 0 deletions
diff --git a/tests/test_plugins.py b/tests/test_plugins.py
new file mode 100644
index 0000000..0f04fbf
--- /dev/null
+++ b/tests/test_plugins.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+import codecs
+import os
+import unittest
+
+from treelib import Tree
+from treelib.plugins import export_to_dot
+
+
+class DotExportCase(unittest.TestCase):
+ """Test class for the export to dot format function"""
+
+ def setUp(self):
+ tree = Tree()
+ tree.create_node("Hárry", "hárry")
+ tree.create_node("Jane", "jane", parent="hárry")
+ tree.create_node("Bill", "bill", parent="hárry")
+ tree.create_node("Diane", "diane", parent="jane")
+ tree.create_node("George", "george", parent="bill")
+ self.tree = tree
+
+ def read_generated_output(self, filename):
+ output = codecs.open(filename, "r", "utf-8")
+ generated = output.read()
+ output.close()
+
+ return generated
+
+ def test_export_to_dot(self):
+ export_to_dot(self.tree, "tree.dot")
+ expected = """\
+digraph tree {
+\t"hárry" [label="Hárry", shape=circle]
+\t"bill" [label="Bill", shape=circle]
+\t"jane" [label="Jane", shape=circle]
+\t"george" [label="George", shape=circle]
+\t"diane" [label="Diane", shape=circle]
+
+\t"hárry" -> "jane"
+\t"hárry" -> "bill"
+\t"bill" -> "george"
+\t"jane" -> "diane"
+}"""
+
+ self.assertTrue(
+ os.path.isfile("tree.dot"), "The file tree.dot could not be found."
+ )
+ generated = self.read_generated_output("tree.dot")
+
+ self.assertEqual(
+ generated, expected, "Generated dot tree is not the expected one"
+ )
+ os.remove("tree.dot")
+
+ def test_export_to_dot_empty_tree(self):
+ empty_tree = Tree()
+ export_to_dot(empty_tree, "tree.dot")
+
+ expected = """\
+digraph tree {
+}"""
+ self.assertTrue(
+ os.path.isfile("tree.dot"), "The file tree.dot could not be found."
+ )
+ generated = self.read_generated_output("tree.dot")
+
+ self.assertEqual(
+ expected, generated, "The generated output for an empty tree is not empty"
+ )
+ os.remove("tree.dot")
+
+ def test_unicode_filename(self):
+ tree = Tree()
+ tree.create_node("Node 1", "node_1")
+ export_to_dot(tree, "ŕʩϢ.dot")
+
+ expected = """\
+digraph tree {
+\t"node_1" [label="Node 1", shape=circle]
+}"""
+ self.assertTrue(
+ os.path.isfile("ŕʩϢ.dot"), "The file ŕʩϢ.dot could not be found."
+ )
+ generated = self.read_generated_output("ŕʩϢ.dot")
+ self.assertEqual(
+ expected, generated, "The generated file content is not the expected one"
+ )
+ os.remove("ŕʩϢ.dot")
+
+ def test_export_with_minus_in_filename(self):
+ tree = Tree()
+ tree.create_node("Example Node", "example-node")
+ expected = """\
+digraph tree {
+\t"example-node" [label="Example Node", shape=circle]
+}"""
+
+ export_to_dot(tree, "id_with_minus.dot")
+ self.assertTrue(
+ os.path.isfile("id_with_minus.dot"),
+ "The file id_with_minus.dot could not be found.",
+ )
+ generated = self.read_generated_output("id_with_minus.dot")
+ self.assertEqual(
+ expected, generated, "The generated file content is not the expected one"
+ )
+ os.remove("id_with_minus.dot")
+
+ def tearDown(self):
+ self.tree = None