remove deprecated stuff in unittest module (#17156)

* remove unnecessary when statement

* remove outdated codes

* remove deprecated stuff in testament

* fix

lib/pure/unittest.nim

@@ -108,16 +108,15 @@
 import std/private/since
 import std/exitprocs
 
-import
-  macros, strutils, streams, times, sets, sequtils
+import std/[macros, strutils, streams, times, sets, sequtils]
 
 when declared(stdout):
-  import os
+  import std/os
 
 const useTerminal = not defined(js)
 
 when useTerminal:
-  import terminal
+  import std/terminal
 
 type
   TestStatus* = enum ## The status of a test when it is done.
@@ -637,19 +636,17 @@ macro check*(conditions: untyped): untyped =
   ## Verify if a statement or a list of statements is true.
   ## A helpful error message and set checkpoints are printed out on
   ## failure (if ``outputLevel`` is not ``PRINT_NONE``).
-  ## Example:
-  ##
-  ## .. code-block:: nim
-  ##
-  ##  import strutils
-  ##
-  ##  check("AKB48".toLowerAscii() == "akb48")
-  ##
-  ##  let teams = {'A', 'K', 'B', '4', '8'}
-  ##
-  ##  check:
-  ##    "AKB48".toLowerAscii() == "akb48"
-  ##    'C' in teams
+  runnableExamples:
+    import std/strutils
+
+    check("AKB48".toLowerAscii() == "akb48")
+
+    let teams = {'A', 'K', 'B', '4', '8'}
+
+    check:
+      "AKB48".toLowerAscii() == "akb48"
+      'C' notin teams
+
   let checked = callsite()[1]
 
   template asgn(a: untyped, value: typed) =
@@ -741,22 +738,19 @@ macro expect*(exceptions: varargs[typed], body: untyped): untyped =
   ## Test if `body` raises an exception found in the passed `exceptions`.
   ## The test passes if the raised exception is part of the acceptable
   ## exceptions. Otherwise, it fails.
-  ## Example:
-  ##
-  ## .. code-block:: nim
-  ##
-  ##  import math, random
-  ##  proc defectiveRobot() =
-  ##    randomize()
-  ##    case rand(1..4)
-  ##    of 1: raise newException(OSError, "CANNOT COMPUTE!")
-  ##    of 2: discard parseInt("Hello World!")
-  ##    of 3: raise newException(IOError, "I can't do that Dave.")
-  ##    else: assert 2 + 2 == 5
-  ##
-  ##  expect IOError, OSError, ValueError, AssertionDefect:
-  ##    defectiveRobot()
-  let exp = callsite()
+  runnableExamples:
+    import std/[math, random, strutils]
+    proc defectiveRobot() =
+      randomize()
+      case rand(1..4)
+      of 1: raise newException(OSError, "CANNOT COMPUTE!")
+      of 2: discard parseInt("Hello World!")
+      of 3: raise newException(IOError, "I can't do that Dave.")
+      else: assert 2 + 2 == 5
+    
+    expect IOError, OSError, ValueError, AssertionDefect:
+      defectiveRobot()
+
   template expectBody(errorTypes, lineInfoLit, body): NimNode {.dirty.} =
     try:
       body
@@ -768,13 +762,11 @@ macro expect*(exceptions: varargs[typed], body: untyped): untyped =
       checkpoint(lineInfoLit & ": Expect Failed, unexpected exception was thrown.")
       fail()
 
-  var body = exp[exp.len - 1]
-
   var errorTypes = newNimNode(nnkBracket)
-  for i in countup(1, exp.len - 2):
-    errorTypes.add(exp[i])
+  for exp in exceptions:
+    errorTypes.add(exp)
 
-  result = getAst(expectBody(errorTypes, exp.lineInfo, body))
+  result = getAst(expectBody(errorTypes, errorTypes.lineInfo, body))
 
 proc disableParamFiltering* =
   ## disables filtering tests with the command line params

tests/stdlib/tunittest.nim

@@ -22,7 +22,7 @@ discard """
 targets: "c js"
 """
 
-import unittest, sequtils
+import std/[unittest, sequtils]
 
 proc doThings(spuds: var int): int =
   spuds = 24
@@ -33,12 +33,12 @@ test "#964":
   check spuds == 24
 
 
-from strutils import toUpperAscii
+from std/strutils import toUpperAscii
 test "#1384":
   check(@["hello", "world"].map(toUpperAscii) == @["HELLO", "WORLD"])
 
 
-import options
+import std/options
 test "unittest typedescs":
   check(none(int) == none(int))
   check(none(int) != some(1))
@@ -49,8 +49,8 @@ test "unittest multiple requires":
   require(true)
 
 
-import random
-from strutils import parseInt
+import std/random
+from std/strutils import parseInt
 proc defectiveRobot() =
   case rand(1..4)
   of 1: raise newException(OSError, "CANNOT COMPUTE!")
@@ -177,3 +177,16 @@ suite "test name filtering":
     check false == matchFilter("suite1", "foo", "*ite2::")
     check matchFilter("suite1", "q**we::foo", "q**we::foo")
     check matchFilter("suite1", "a::b*c::d*e", "a::b*c::d*e")
+
+
+block:
+  type MyFoo = object
+  var obj = MyFoo()
+  let check = 1
+  check(obj == obj)
+
+block:
+  let check = 123
+  var a = 1
+  var b = 1
+  check(a == b)