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-rw-r--r--ravanan/propnet.scm4
-rw-r--r--tests/propnet.scm41
2 files changed, 44 insertions, 1 deletions
diff --git a/ravanan/propnet.scm b/ravanan/propnet.scm
index 4eef452..c820864 100644
--- a/ravanan/propnet.scm
+++ b/ravanan/propnet.scm
@@ -131,7 +131,9 @@ add to the inbox."
(let loop ((cells (list))
(cell-values-inbox initial-cell-values)
- (propagators-inbox (list))
+ ;; Pre-schedule all propagators to ensure we trigger those
+ ;; propagators that have no inputs at all.
+ (propagators-inbox (propnet-propagators propnet))
(propagators-in-flight (list)))
(match cell-values-inbox
;; Process one new cell value in inbox.
diff --git a/tests/propnet.scm b/tests/propnet.scm
new file mode 100644
index 0000000..182eb30
--- /dev/null
+++ b/tests/propnet.scm
@@ -0,0 +1,41 @@
+;;; ravanan --- High-reproducibility CWL runner powered by Guix
+;;; Copyright © 2024 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of ravanan.
+;;;
+;;; ravanan is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; ravanan is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;;; General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with ravanan. If not, see <https://www.gnu.org/licenses/>.
+
+(use-modules (srfi srfi-64)
+ (ravanan propnet))
+
+(test-begin "propnet")
+
+(test-equal "Trigger propagator with no inputs"
+ '((out . #t))
+ (run-propnet (propnet (list (propagator "const"
+ (const '((out . #t)))
+ '()
+ '()
+ '((out . out))))
+ (@@ (ravanan workflow) value=?)
+ (@@ (ravanan workflow) merge-values)
+ (scheduler (lambda (proc _)
+ proc)
+ (const 'completed)
+ 0
+ (lambda (proc)
+ (proc))))
+ '()))
+
+(test-end "propnet")