merge stdlib tests (#9439)

tests/stdlib/tissues.nim

@@ -0,0 +1,105 @@
+discard """
+output: '''
+02
+1
+2
+3
+4
+5
+9
+b = true
+123456789
+Second readLine raised an exception
+123456789
+1
+2aaaaaaaa
+3bbbbbbb
+'''
+"""
+
+import terminal, colors, re, encodings, strutils, os
+
+
+block t9394:
+  let codeFg = ansiForegroundColorCode(colAliceBlue)
+  let codeBg = ansiBackgroundColorCode(colAliceBlue)
+
+  doAssert codeFg == "\27[38;2;240;248;255m"
+  doAssert codeBg == "\27[48;2;240;248;255m"
+
+
+
+block t5382:
+  let regexp = re"^\/([0-9]{2})\.html$"
+  var matches: array[1, string]
+  discard "/02.html".find(regexp, matches)
+  echo matches[0]
+
+
+
+block tcount:
+  # bug #1845, #2224
+  var arr = [3,2,1,5,4]
+
+  # bubble sort
+  for i in low(arr)..high(arr):
+    for j in i+1..high(arr): # Error: unhandled exception: value out of range: 5 [RangeError]
+      if arr[i] > arr[j]:
+        let tmp = arr[i]
+        arr[i] = arr[j]
+        arr[j] = tmp
+
+  for i in low(arr)..high(arr):
+    echo arr[i]
+
+  # check this terminates:
+  for x in countdown('\255', '\0'):
+    discard
+
+
+
+block t8468:
+  when defined(windows):
+    var utf16to8 = open(destEncoding = "utf-16", srcEncoding = "utf-8")
+    var s = "some string"
+    var c = utf16to8.convert(s)
+
+    var z = newStringOfCap(s.len * 2)
+    for x in s:
+      z.add x
+      z.add chr(0)
+
+    doAssert z == c
+
+
+
+block t5349:
+  const fn = "file9char.txt"
+  writeFile(fn, "123456789")
+
+  var f = system.open(fn)
+  echo getFileSize(f)
+
+  var line = newString(10)
+  try:
+    let b = readLine(f, line)
+    echo "b = ", b
+  except:
+    echo "First readLine raised an exception"
+  echo line
+
+  try:
+    line = readLine(f)
+    let b = readLine(f, line)
+    echo "b = ", b
+  except:
+    echo "Second readLine raised an exception"
+  echo line
+  f.close()
+
+  removeFile(fn)
+  # bug #8961
+  writeFile("test.txt", "1\C\L2aaaaaaaa\C\L3bbbbbbb")
+
+  for line in lines("test.txt"):
+    echo line