From 5d71ee3725bb8d91937208b1aeaf3c99afa9a054 Mon Sep 17 00:00:00 2001
From: Zufu Liu <unknown>
Date: Tue, 10 Jan 2023 09:13:46 +1100
Subject: Bug [#2372]. Fix SCI_LINESJOIN bug where carriage returns were
 incorrectly retained.

---
 test/simpleTests.py | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'test')

diff --git a/test/simpleTests.py b/test/simpleTests.py
index a16b940fd..5383911ee 100644
--- a/test/simpleTests.py
+++ b/test/simpleTests.py
@@ -2960,6 +2960,49 @@ class TestDirectAccess(unittest.TestCase):
 		cpBuffer = ctypes.c_char_p(rangePointer)
 		self.assertEquals(cpBuffer.value, text[1:])
 
+class TestJoin(unittest.TestCase):
+	def setUp(self):
+		self.xite = Xite.xiteFrame
+		self.ed = self.xite.ed
+		self.ed.ClearAll()
+		self.ed.EmptyUndoBuffer()
+
+	def tearDown(self):
+		self.ed.ClearAll()
+		self.ed.EmptyUndoBuffer()
+
+	def testJoin(self):
+		text = b"a\r\nb\r\nc"
+		self.ed.SetContents(text)
+		self.ed.TargetWholeDocument()
+		self.ed.LinesJoin()
+		self.assertEquals(self.ed.Contents(), b"a b c")
+
+	def testJoinEndLine(self):
+		text = b"a\r\nb\r\nc"
+		self.ed.SetContents(text)
+		# Select a..b
+		self.ed.SetTargetRange(0, 4)
+		self.ed.LinesJoin()
+		self.assertEquals(self.ed.Contents(), b"a b\r\nc")
+
+	def testJoinSpace(self):
+		# Demonstration of bug #2372 which produced b"a \r"
+		text = b"a \r\n\r\n"
+		self.ed.SetContents(text)
+		self.ed.TargetWholeDocument()
+		self.ed.LinesJoin()
+		self.assertEquals(self.ed.Contents(), b"a ")
+
+	def testJoinOutOfBounds(self):
+		text = b"a\r\nb\r\nc"
+		self.ed.SetContents(text)
+		# Setting end of target after document end encourages non-termination.
+		self.ed.SetTargetRange(-10, 16)
+		self.ed.LinesJoin()
+		# Out-of-bounds leaves extra space as 'c' is processed
+		self.assertEquals(self.ed.Contents(), b"a b c ")
+
 class TestWordChars(unittest.TestCase):
 	def setUp(self):
 		self.xite = Xite.xiteFrame
-- 
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