move rest of tests to testament (#16140)

* move rest of tests to testament
* Update tests/stdlib/tsums.nim

tests/stdlib/tsugar.nim

@@ -0,0 +1,94 @@
+import sugar
+
+block dup_with_field:
+  type
+    Foo = object
+      col, pos: int
+      name: string
+
+  proc inc_col(foo: var Foo) = inc(foo.col)
+  proc inc_pos(foo: var Foo) = inc(foo.pos)
+  proc name_append(foo: var Foo, s: string) = foo.name &= s
+
+  let a = Foo(col: 1, pos: 2, name: "foo")
+  block:
+    let b = a.dup(inc_col, inc_pos):
+      _.pos = 3
+      name_append("bar")
+      inc_pos
+
+    doAssert(b == Foo(col: 2, pos: 4, name: "foobar"))
+
+  block:
+    let b = a.dup(inc_col, pos = 3, name = "bar"):
+      name_append("bar")
+      inc_pos
+
+    doAssert(b == Foo(col: 2, pos: 4, name: "barbar"))
+
+import algorithm
+
+var a = @[1, 2, 3, 4, 5, 6, 7, 8, 9]
+doAssert dup(a, sort(_)) == sorted(a)
+doAssert a.dup(sort) == sorted(a)
+#Chaining:
+var aCopy = a
+aCopy.insert(10)
+doAssert a.dup(insert(10)).dup(sort()) == sorted(aCopy)
+
+import random
+
+const b = @[0, 1, 2]
+let c = b.dup shuffle()
+doAssert c.len == 3
+
+#test collect
+import sets, tables
+
+let data = @["bird", "word"] # if this gets stuck in your head, its not my fault
+assert collect(newSeq, for (i, d) in data.pairs: (if i mod 2 == 0: d)) == @["bird"]
+assert collect(initTable(2), for (i, d) in data.pairs: {i: d}) == {0: "bird",
+      1: "word"}.toTable
+assert initHashSet.collect(for d in data.items: {d}) == data.toHashSet
+
+let x = collect(newSeqOfCap(4)):
+    for (i, d) in data.pairs:
+      if i mod 2 == 0: d
+assert x == @["bird"]
+
+# bug #12874
+
+let bug1 = collect(
+    newSeq,
+    for (i, d) in data.pairs:(
+      block:
+        if i mod 2 == 0:
+          d
+        else:
+          d & d
+      )
+)
+assert bug1 == @["bird", "wordword"]
+
+import strutils
+let y = collect(newSeq):
+  for (i, d) in data.pairs:
+    try: parseInt(d) except: 0
+assert y == @[0, 0]
+
+let z = collect(newSeq):
+  for (i, d) in data.pairs:
+    case d
+    of "bird": "word"
+    else: d
+assert z == @["word", "word"]
+
+
+proc tforum =
+  let ans = collect(newSeq):
+    for y in 0..10:
+      if y mod 5 == 2:
+        for x in 0..y:
+          x
+
+tforum()