unittest: use defines instead of env vars (#16165)

* unittest: use defines instead of env vars

* use defines in testament

* fixup

Co-authored-by: Andreas Rumpf <rumpf_a@web.de>

tests/config.nims

@@ -8,4 +8,9 @@ switch("path", "$lib/../testament/lib")
 switch("colors", "off")
 switch("listFullPaths", "off")
 switch("excessiveStackTrace", "off")
+
+# for std/unittest
+switch("define", "nimUnittestOutputLevel:PRINT_FAILURES")
+switch("define", "nimUnittestColor:off")
+
 switch("define", "nimLegacyTypeMismatch")

tests/js/tunittests.nim

@@ -1,13 +0,0 @@
-discard """
-  output: '''
-
-[Suite] Bacon
-  [OK] >:)
-'''
-"""
-
-import unittest
-
-suite "Bacon":
-  test ">:)":
-    check(true == true)

tests/stdlib/ttimes.nim

@@ -7,12 +7,6 @@ import times, strutils, unittest
 when not defined(js):
   import os
 
-# Normally testament configures unittest with environment variables,
-# but that doesn't work for the JS target. So instead we must set the correct
-# settings here.
-addOutputFormatter(
-  newConsoleOutputFormatter(PRINT_FAILURES, colorOutput = false))
-
 proc staticTz(hours, minutes, seconds: int = 0): Timezone {.noSideEffect.} =
   let offset = hours * 3600 + minutes * 60 + seconds
 

tests/stdlib/tunittest.nim

@@ -19,6 +19,7 @@ discard """
 
 [Suite] test name filtering
 '''
+targets: "c js"
 """
 
 import unittest, sequtils