Add simple match_quotes test

This is much easier to debug than the big tests with real-world e-mails.

Author: emersion

test/data/simple/blocks.txt

@@ -0,0 +1,9 @@
+[text This is a standalone line.]
+[quote at 0-1 This is the first line.]
+[text This is a reply to the first line.]
+[quote at 2-3 This is the second line.]
+[text This is a reply to the second line.]
+[quote at 4-7 This is the third line.
+
+This is the fourth line.]
+[text This is a reply to the third and fourth lines.]

test/data/simple/msg.txt

@@ -0,0 +1,7 @@
+This is the first line.
+
+This is the second line.
+
+This is the third line.
+
+This is the fourth line.

test/data/simple/reply.txt

@@ -0,0 +1,15 @@
+This is a standalone line.
+
+> This is the first line.
+
+This is a reply to the first line.
+
+> This is the second line.
+
+This is a reply to the second line.
+
+> This is the third line.
+>
+> This is the fourth line.
+
+This is a reply to the third and fourth lines.

test/test_match.py

@@ -0,0 +1,29 @@
+from emailthreads import quotes
+import os
+import unittest
+from email.message import EmailMessage
+
+class MatchBlocksTestCase(unittest.TestCase):
+	def _read_file(self, name):
+		dir_path = os.path.dirname(os.path.realpath(__file__))
+		with open(dir_path + "/data/" + name, 'r') as f:
+			return f.read().strip()
+
+	def _read_file_as_message(self, name):
+		msg = EmailMessage()
+		msg.set_content(self._read_file(name))
+		return msg
+
+	def test_simple(self):
+		msg = self._read_file_as_message("simple/msg.txt")
+		reply = self._read_file_as_message("simple/reply.txt")
+		want = self._read_file("simple/blocks.txt")
+
+		blocks = quotes.parse_blocks(reply)
+		blocks = quotes.match_quotes(blocks, msg)
+		got = "\n".join([str(block) for block in blocks])
+
+		self.assertEqual(got, want)
+
+if __name__ == '__main__':
+	unittest.main()