# -*- coding: utf-8 -*-
|
|
import os
|
import unittest
|
from StringIO import StringIO
|
import textwrap
|
|
import stringtemplate3
|
|
from antlr3.dottreegen import toDOT
|
from antlr3.treewizard import TreeWizard
|
from antlr3.tree import CommonTreeAdaptor
|
|
|
class TestToDOT(unittest.TestCase):
|
"""Test case for the toDOT function."""
|
|
def setUp(self):
|
self.adaptor = CommonTreeAdaptor()
|
self.tokens = [
|
"", "", "", "", "", "A", "B", "C", "D", "E", "ID", "VAR"
|
]
|
self.wiz = TreeWizard(self.adaptor, self.tokens)
|
|
|
def testNone(self):
|
"""toDOT()"""
|
|
treeST = stringtemplate3.StringTemplate(
|
template=(
|
"digraph {\n" +
|
" $nodes$\n" +
|
" $edges$\n" +
|
"}\n")
|
)
|
|
edgeST = stringtemplate3.StringTemplate(
|
template="$parent$ -> $child$\n"
|
)
|
|
tree = self.wiz.create("(A B (B C C) (B (C D D)))")
|
st = toDOT(tree, self.adaptor, treeST, edgeST)
|
|
result = st.toString()
|
expected = textwrap.dedent(
|
'''\
|
digraph {
|
n0 [label="A"];
|
n1 [label="B"];
|
n2 [label="B"];
|
n3 [label="C"];
|
n4 [label="C"];
|
n5 [label="B"];
|
n6 [label="C"];
|
n7 [label="D"];
|
n8 [label="D"];
|
|
n0 -> n1
|
n0 -> n2
|
n2 -> n3
|
n2 -> n4
|
n0 -> n5
|
n5 -> n6
|
n6 -> n7
|
n6 -> n8
|
|
}
|
'''
|
)
|
self.assertEqual(result, expected)
|
|
|
if __name__ == "__main__":
|
unittest.main(testRunner=unittest.TextTestRunner(verbosity=2))
|
