some test cleanups & category reorganization (#22010)

* clean up some test categories

* mention exact slice issue

* magics into system

* move trangechecks into overflow

* move tmemory to system

* try fix CI

* try fix CI

* final CI fix

tests/stdlib/tdistros_detect.nim

@@ -0,0 +1,16 @@
+import std/[assertions, distros]
+
+when defined(windows):
+    doAssert detectOs(Windows) == true
+    doAssert detectOs(Linux) == false
+    doAssert detectOs(MacOSX) == false
+
+when defined(linux):
+    doAssert detectOs(Linux) == true
+    doAssert detectOs(Windows) == false
+    doAssert detectOs(MacOSX) == false
+
+when defined(macosx):
+    doAssert detectOs(MacOSX) == true
+    doAssert detectOs(Windows) == false
+    doAssert detectOs(Linux) == false

tests/stdlib/tmemory.nim

@@ -1,16 +0,0 @@
-import std/assertions
-
-block: # cmpMem
-  type
-    SomeHash = array[15, byte]
-
-  var
-    a: SomeHash
-    b: SomeHash
-
-  a[^1] = byte(1)
-  let c = a
-
-  doAssert cmpMem(a.addr, b.addr, sizeof(SomeHash)) > 0
-  doAssert cmpMem(b.addr, a.addr, sizeof(SomeHash)) < 0
-  doAssert cmpMem(a.addr, c.addr, sizeof(SomeHash)) == 0

tests/stdlib/tquit.nim

@@ -1,18 +0,0 @@
-discard """
-disabled: true
-output: '''
-just exiting...
-'''
-joinable: false
-"""
-
-# Test `addQuitProc` (now deprecated by `addExitProc`)
-
-import std/syncio
-
-proc myExit() {.noconv.} =
-  write(stdout, "just exiting...\n")
-
-{.push warning[deprecated]: off.}
-addQuitProc(myExit)
-{.pop.}

tests/stdlib/trat_float.nim

@@ -0,0 +1,9 @@
+discard """
+  errormsg: '''type mismatch: got'''
+  file: "trat_float.nim"
+  line: "9,19"
+"""
+import rationals
+var
+  # this fails - no floats as num or den
+  r = initRational(1.0'f, 1.0'f)

tests/stdlib/trat_init.nim

@@ -0,0 +1,14 @@
+discard """
+  output: '''true'''
+"""
+import rationals
+var
+  z = Rational[int](num: 0, den: 1)
+  o = initRational(num=1, den=1)
+  a = initRational(1, 2)
+
+try:
+  var
+    r = initRational(1, 0)  # this fails - no zero denominator
+except AssertionDefect:
+  echo "true"

tests/stdlib/treadln.nim

@@ -0,0 +1,23 @@
+
+discard """
+output: '''
+test the improved readline handling that does not care whether its
+Macintosh, Unix or Windows text format.
+'''
+"""
+
+import std/syncio
+
+# test the improved readline handling that does not care whether its
+# Macintosh, Unix or Windows text format.
+
+var
+  inp: File
+  line: string
+
+if open(inp, "tests/stdlib/treadln.nim"):
+  while not endOfFile(inp):
+    line = readLine(inp)
+    if line.len >= 2 and line[0] == '#' and line[1] == ' ':
+      echo line[2..^1]
+  close(inp)

tests/stdlib/tstrtabs2.nim

@@ -15,3 +15,18 @@ block:
   doAssert t["name"] == "John"
 
 m()
+
+proc fun()=
+  let ret = newStringTable(modeCaseSensitive)
+  ret["foo"] = "bar"
+
+  doAssert $ret == "{foo: bar}"
+
+  let b = ret["foo"]
+  doAssert b == "bar"
+
+proc main()=
+  static: fun()
+  fun()
+
+main()