make run the default action of a test in tester

tests/iter/timplicit_auto.nim

@@ -15,4 +15,4 @@ iterator fields(a = (0,0), b = (h-1,w-1)): auto =
       yield (y,x)
 
 for y,x in fields():
-  stdout.write disp[univ(x, y)]
+  doAssert disp[univ(x, y)] == disp[Tree]

tests/iter/titer.nim

@@ -1,3 +1,16 @@
+discard """
+output: '''
+testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest2!test3?hi
+what's
+your
+name
+hi
+what's
+your
+name
+'''
+"""
+
 # Test the new iterators
 
 iterator xrange(fromm, to: int, step = 1): int =

tests/iter/titer_no_tuple_unpack.nim

@@ -1,3 +1,18 @@
+discard """
+output: '''
+3 4
+4 5
+5 6
+6 7
+7 8
+(x: 3, y: 4)
+(x: 4, y: 5)
+(x: 5, y: 6)
+(x: 6, y: 7)
+(x: 7, y: 8)
+'''
+"""
+
 
 iterator xrange(fromm, to: int, step = 1): tuple[x, y: int] =
   var a = fromm
@@ -10,4 +25,3 @@ for a, b in xrange(3, 7):
 
 for tup in xrange(3, 7):
   echo tup
-

tests/iter/titervaropenarray.nim

@@ -11,6 +11,3 @@ iterator iterAndZero(a: var openArray[int]): int =
 var x = [[1, 2, 3], [4, 5, 6]]
 for y in iterAndZero(x[0]): write(stdout, $y)
 #OUT 123
-
-
-

tests/iter/tpermutations.nim

@@ -1,3 +1,14 @@
+discard """
+output: '''
+@[@[1.0, 2.0], @[3.0, 4.0]]
+perm: 10.0 det: -2.0
+@[@[1.0, 2.0, 3.0, 4.0], @[4.0, 5.0, 6.0, 7.0], @[7.0, 8.0, 9.0, 10.0], @[10.0, 11.0, 12.0, 13.0]]
+perm: 29556.0 det: 0.0
+@[@[0.0, 1.0, 2.0, 3.0, 4.0], @[5.0, 6.0, 7.0, 8.0, 9.0], @[10.0, 11.0, 12.0, 13.0, 14.0], @[15.0, 16.0, 17.0, 18.0, 19.0], @[20.0, 21.0, 22.0, 23.0, 24.0]]
+perm: 6778800.0 det: 0.0
+'''
+"""
+
 
 import sequtils, sugar
 

tests/iter/tshallowcopy_closures.nim

@@ -1,5 +1,9 @@
 discard """
   ccodecheck: "!@('{' \\s* 'NI HEX3Astate;' \\s* '}')"
+  output: '''
+a1 10
+a1 9
+'''
 """
 
 # bug #1803
@@ -26,6 +30,6 @@ var
   z: TaskFn
 
 discard x()
-z = x #shallowCopy(z, x)
-z = y #shallowCopy(z, y)
+shallowCopy(z, x)
+shallowCopy(z, y)
 discard x()

tests/iter/twrap_walkdir.nim

@@ -1,5 +1,6 @@
-
-
+discard """
+action: compile
+"""
 
 import os