From ab2c082cb3e9e411571fa0936776762bc0c8fd94 Mon Sep 17 00:00:00 2001
From: flywind <43030857+xflywind@users.noreply.github.com>
Date: Mon, 23 Nov 2020 18:27:09 +0800
Subject: fix rope index (#16100)

* fix rope index

* add testcase
---
 tests/stdlib/tropes.nim | 66 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 tests/stdlib/tropes.nim

(limited to 'tests/stdlib')

diff --git a/tests/stdlib/tropes.nim b/tests/stdlib/tropes.nim
new file mode 100644
index 000000000..9678e26c3
--- /dev/null
+++ b/tests/stdlib/tropes.nim
@@ -0,0 +1,66 @@
+import ropes
+
+
+block:
+  let r: Rope = nil
+  doAssert r[0] == '\0'
+
+block:
+  var
+    r1 = rope("Hello")
+    r2 = rope("Nim-Lang")
+
+  let r = r1 & r2
+  let s = $r
+  for i in 0 ..< r.len:
+    doAssert r[i] == s[i]
+
+  doAssert r[66] == '\0'
+
+block:
+  let r = rope("Hello, Nim-Lang")
+
+  let s = $r
+  for i in 0 ..< r.len:
+    doAssert r[i] == s[i]
+
+  doAssert r[66] == '\0'
+
+block:
+  var r: Rope
+  r.add rope("Nim ")
+  r.add rope("is ")
+  r.add rope("a ")
+  r.add rope("great ")
+  r.add rope("language")
+
+  let s = $r
+  for i in 0 ..< r.len:
+    doAssert r[i] == s[i]
+
+  doAssert r[66] == '\0'
+
+block:
+  var r: Rope
+  r.add rope("My Conquest")
+  r.add rope(" is ")
+  r.add rope("the Sea of Stars")
+
+  let s = $r
+  for i in 0 ..< r.len:
+    doAssert r[i] == s[i]
+
+  doAssert r[66] == '\0'
+
+block:
+  var r: Rope
+  r.add rope("My Conquest")
+  r.add rope(" is ")
+  r.add rope("the Sea of Stars")
+
+  var i: int
+  for item in r:
+    doAssert r[i] == item
+    inc i
+
+  doAssert r[66] == '\0'
-- 
cgit 1.4.1-2-gfad0