diff --git a/tests/vault/gear/scheduler-activity-test.cpp b/tests/vault/gear/scheduler-activity-test.cpp
index 94ab20e0a..29c29d9d8 100644
--- a/tests/vault/gear/scheduler-activity-test.cpp
+++ b/tests/vault/gear/scheduler-activity-test.cpp
@@ -26,10 +26,12 @@
 
 
 #include "lib/test/run.hpp"
+#include "lib/test/test-helper.hpp"
 #include "activity-detector.hpp"
 #include "vault/gear/activity-lang.hpp"
+#include "vault/real-clock.hpp"
 #include "lib/time/timevalue.hpp"
-//#include "lib/format-cout.hpp"
+#include "lib/format-cout.hpp"  /////////////////////////////////////TODO
 //#include "lib/util.hpp"
 
 //#include <utility>
@@ -68,6 +70,7 @@ namespace test {
           
           verifyActivity_Invoke();
           verifyActivity_Notify();
+          verifyActivity_Post();
           verifyActivity_Gate();
           
           termBuilder();
@@ -94,13 +97,41 @@ namespace test {
       
       
       
-      /** @test TODO behaviour of Activity::INVOKE
-       * @todo WIP 7/23 🔁 define ⟶ implement
+      /** @test behaviour of Activity::INVOKE
+       *        - setup requires two FEED-Activities to be chained up as arguments
+       *        - use the rigged execution context provided by ActivityDetector
+       *        - can verify this way that the activation leads to JobFunctor invocation
        */
       void
       verifyActivity_Invoke()
         {
           ActivityDetector detector;
+          
+          size_t x1=rand(), x2=rand();
+          Time nomTime = lib::test::randTime();
+          Activity feed{x1,x2};
+          Activity feed2{x1+1,x1+2};
+          feed.next = &feed2;
+          Activity invoke{detector.buildMockJobFunctor("job"), nomTime, feed};
+          
+          Time realTime = RealClock::now();
+          CHECK (activity::PASS == invoke.activate (realTime, detector.executionCtx));
+          
+          cout << detector.showLog()<<endl;
+          CHECK (detector.verifyInvocation ("job").arg(nomTime, x1));
+        }
+      
+      
+      
+      /** @test TODO behaviour of Activity::NOTIFY
+       *        - notification entails to schedule a follow-up activation
+       *        - implies to pass the `next`-Activity to the execution context's `post()` hook
+       *        - use the rigged execution context from ActivityDetector to detect call
+       * @todo WIP 7/23 🔁 define ⟶ implement
+       */
+      void
+      verifyActivity_Notify()
+        {
         }
       
       
@@ -109,7 +140,7 @@ namespace test {
        * @todo WIP 7/23 ⟶ define ⟶ implement
        */
       void
-      verifyActivity_Notify()
+      verifyActivity_Post()
         {
         }
       
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index e8ea26cca..a8960876e 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -78425,7 +78425,9 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node CREATED="1690068518127" ID="ID_72274125" MODIFIED="1690068609740" TEXT="diese wird normalerweise im Scheduler Layer-2 bereitgestellt">
 <arrowlink COLOR="#6a668f" DESTINATION="ID_989605795" ENDARROW="Default" ENDINCLINATION="-303;1079;" ID="Arrow_ID_180378517" STARTARROW="None" STARTINCLINATION="-786;38;"/>
 </node>
-<node CREATED="1690068617946" ID="ID_270502955" MODIFIED="1690068631452" TEXT="f&#xfc;r den Test k&#xf6;nnen Stubs eingebunden werden"/>
+<node COLOR="#338800" CREATED="1690068617946" ID="ID_270502955" MODIFIED="1692370161215" TEXT="f&#xfc;r den Test k&#xf6;nnen Stubs eingebunden werden">
+<icon BUILTIN="button_ok"/>
+</node>
 </node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1690068712621" ID="ID_663408731" MODIFIED="1690068720581" TEXT="Abstraktion: ExecutionContext">
@@ -78457,9 +78459,10 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1690068793535" ID="ID_1906823317" MODIFIED="1692286273670" TEXT="ist implementiert durch die ActivityLang selber">
 <icon BUILTIN="flag-yellow"/>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1692286145852" ID="ID_596906210" MODIFIED="1692286248899" TEXT="Fake-Setup f&#xfc;r Tests (ActivityDetector)">
+<node COLOR="#338800" CREATED="1692286145852" ID="ID_596906210" MODIFIED="1692370174170" TEXT="Fake-Setup f&#xfc;r Tests (ActivityDetector)">
 <arrowlink COLOR="#433d62" DESTINATION="ID_902152915" ENDARROW="Default" ENDINCLINATION="656;-38;" ID="Arrow_ID_644734597" STARTARROW="None" STARTINCLINATION="1154;77;"/>
-<icon BUILTIN="flag-yellow"/>
+<linktarget COLOR="#7ba8d3" DESTINATION="ID_596906210" ENDARROW="Default" ENDINCLINATION="76;284;" ID="Arrow_ID_1248869383" SOURCE="ID_875825086" STARTARROW="None" STARTINCLINATION="990;-88;"/>
+<icon BUILTIN="button_ok"/>
 </node>
 </node>
 </node>
@@ -78650,6 +78653,7 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <arrowlink COLOR="#794f4b" DESTINATION="ID_284088835" ENDARROW="Default" ENDINCLINATION="-685;-107;" ID="Arrow_ID_1213725911" STARTARROW="None" STARTINCLINATION="518;48;"/>
 <icon BUILTIN="flag-yellow"/>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1690070237908" HGAP="43" ID="ID_875825086" MODIFIED="1690070258681" TEXT="Test-Setup mit &#x3bb;-Stubs" VSHIFT="-3">
+<arrowlink COLOR="#7ba8d3" DESTINATION="ID_596906210" ENDARROW="Default" ENDINCLINATION="76;284;" ID="Arrow_ID_1248869383" STARTARROW="None" STARTINCLINATION="990;-88;"/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1690070107384" HGAP="31" ID="ID_396064852" MODIFIED="1690070255409" TEXT="ActivityDetector f&#xfc;r Me&#xdf;unkte" VSHIFT="-13">
@@ -79028,12 +79032,18 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1685029878060" ID="ID_526042153" MODIFIED="1685029885075" TEXT="was hei&#xdf;t das?">
 <icon BUILTIN="help"/>
 </node>
+<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1692370072446" ID="ID_561777955" MODIFIED="1692370080979" TEXT="vorerst wohl gar nicht notwendig">
+<icon BUILTIN="hourglass"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1685029907272" ID="ID_1507342460" MODIFIED="1685029927215" TEXT="Folge &#x27f9; inhibit Activity">
 <icon BUILTIN="flag-yellow"/>
-<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1685029940611" ID="ID_845619439" MODIFIED="1685029978331" TEXT="m&#xf6;glicherweise Nachricht">
+<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1685029940611" ID="ID_845619439" MODIFIED="1692370051753" TEXT="m&#xf6;glicherweise Nachricht">
 <arrowlink COLOR="#fe3b32" DESTINATION="ID_1190497873" ENDARROW="Default" ENDINCLINATION="111;-9;" ID="Arrow_ID_302966285" STARTARROW="None" STARTINCLINATION="111;-9;"/>
-<icon BUILTIN="flag-pink"/>
+<icon BUILTIN="help"/>
+</node>
+<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1692370004045" ID="ID_852110707" MODIFIED="1692370044558" TEXT="wahrscheinlich nur das Gegenteil: ent-blocken">
+<icon BUILTIN="idea"/>
 </node>
 </node>
 </node>
@@ -79418,8 +79428,8 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1688336697451" ID="ID_360159435" MODIFIED="1688337246569" TEXT="SchedulerActivity_test">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#eef0c5" COLOR="#990000" CREATED="1688336697451" ID="ID_360159435" MODIFIED="1692369888927" TEXT="SchedulerActivity_test">
+<icon BUILTIN="pencil"/>
 <node CREATED="1688337038457" ID="ID_1859527374" MODIFIED="1688337060790" TEXT="&#xbb;Activity Language&#xab; Functionality test">
 <icon BUILTIN="info"/>
 </node>
@@ -79476,8 +79486,8 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 <icon BUILTIN="flag-yellow"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689199390484" ID="ID_176395611" MODIFIED="1689201554423" TEXT="verifyActivity_Invoke">
-<icon BUILTIN="flag-yellow"/>
+<node COLOR="#338800" CREATED="1689199390484" ID="ID_176395611" MODIFIED="1692369867056" TEXT="verifyActivity_Invoke">
+<icon BUILTIN="button_ok"/>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689199390484" ID="ID_1274424925" MODIFIED="1689200512352" TEXT="verifyActivity_Notify">
 <icon BUILTIN="flag-yellow"/>
@@ -82154,8 +82164,14 @@ Date:&#160;&#160;&#160;Thu Apr 20 18:53:17 2023 +0200<br/>
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689205129709" ID="ID_355308944" MODIFIED="1689205163520" TEXT="Invocation-Activity">
-<icon BUILTIN="flag-yellow"/>
+<node BACKGROUND_COLOR="#d2beaf" COLOR="#5c4d6e" CREATED="1689205129709" ID="ID_355308944" MODIFIED="1692370294024" TEXT="Invocation-Activity">
+<icon BUILTIN="hourglass"/>
+<node CREATED="1692370260876" ID="ID_619089820" MODIFIED="1692370280682" TEXT="fertig konfiguriertes Job-Setup">
+<icon BUILTIN="info"/>
+</node>
+<node BACKGROUND_COLOR="#f0d5c5" COLOR="#990033" CREATED="1692370281681" ID="ID_1343697626" MODIFIED="1692370290936" TEXT="brauchen wir das &#xfc;berhaupt?">
+<icon BUILTIN="help"/>
+</node>
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1689205263970" ID="ID_43321196" MODIFIED="1689205277049" TEXT="activationProbe">
 <icon BUILTIN="flag-yellow"/>