1 files changed, 104 insertions, 0 deletions
diff --git a/tests/stdlib/tropes.nim b/tests/stdlib/tropes.nim
new file mode 100644
index 000000000..eb0edc364
--- /dev/null
+++ b/tests/stdlib/tropes.nim
@@ -0,0 +1,104 @@
+discard """
+  matrix: "--mm:refc; --mm:orc"
+  targets: "c js"
+"""
+
+import std/ropes
+import std/assertions
+
+template main() =
+  block:
+    let r: Rope = nil
+    doAssert r[0] == '\0'
+    doAssert $r == ""
+
+  block:
+    var
+      r1 = rope("Hello, ")
+      r2 = rope("Nim-Lang")
+
+    let r = r1 & r2
+    let s = $r
+    doAssert s == "Hello, Nim-Lang"
+    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
+    doAssert s == "Hello, Nim-Lang"
+    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
+    doAssert s == "Nim is a great language"
+    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
+    doAssert s == "My Conquest is the Sea of Stars"
+    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")
+
+    doAssert $r == "My Conquest is the Sea of Stars"
+
+    var i: int
+    for item in r:
+      doAssert r[i] == item
+      inc i
+
+    doAssert r[66] == '\0'
+
+  block:
+    let r1 = "$1 $2 $3" % [rope("Nim"), rope("is"), rope("a great language")]
+    doAssert $r1 == "Nim is a great language"
+
+    let r2 = "$# $# $#" % [rope("Nim"), rope("is"), rope("a great language")]
+    doAssert $r2 == "Nim is a great language"
+
+  block: # `[]`
+    let r1 = rope("Hello, Nim!")
+
+    doAssert r1[-2] == '\0'
+    doAssert r1[0] == 'H'
+    doAssert r1[7] == 'N'
+    doAssert r1[22] == '\0'
+
+    let r2 = rope("Hello") & rope(", Nim!")
+
+    doAssert r2[-2] == '\0'
+    doAssert r2[0] == 'H'
+    doAssert r2[7] == 'N'
+    doAssert r2[22] == '\0'
+
+static: main()
+main()